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2 episodes with Failover
2 episodes with Failover
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2 episodes with Failover
Set up and access your Cloud PCs from anywhere with a full Windows experience on any device using Windows 365. Whether you're working from a browser, the Windows app, or Windows 365 Link, your desktop, apps, and settings are always available—just like a traditional PC. As an admin, you can quickly provision and manage Cloud PCs for multiple users with Microsoft Intune. Scott Manchester, Windows Cloud Vice President, shows how easy it is to set up secure, scalable environments, ensure business continuity with built-in restore, and optimize performance with AI-powered insights. ► QUICK LINKS: 00:00 - Windows 365 Cloud PC 00:51 - Benefits to Cloud PCs 02:32 - How to set it up 04:58 - Provisioning process 06:16 - Options to connect to Cloud PC 07:40 - Restore Cloud PC 08:52 - Backups for PC forensics 09:44 - Failover options 11:36 - Change Cloud PC specs 12:51 - Connect from personal devices 14:28 - Wrap up ► Link References Check out https://aka.ms/W365Docs ► Unfamiliar with Microsoft Mechanics? As Microsoft's official video series for IT, you can watch and share valuable content and demos of current and upcoming tech from the people who build it at Microsoft. • Subscribe to our YouTube: https://www.youtube.com/c/MicrosoftMechanicsSeries • Talk with other IT Pros, join us on the Microsoft Tech Community: https://techcommunity.microsoft.com/t5/microsoft-mechanics-blog/bg-p/MicrosoftMechanicsBlog • Watch or listen from anywhere, subscribe to our podcast: https://microsoftmechanics.libsyn.com/podcast ► Keep getting this insider knowledge, join us on social: • Follow us on Twitter: https://twitter.com/MSFTMechanics • Share knowledge on LinkedIn: https://www.linkedin.com/company/microsoft-mechanics/ • Enjoy us on Instagram: https://www.instagram.com/msftmechanics/ • Loosen up with us on TikTok: https://www.tiktok.com/@msftmechanics
EP776 - Como funciona o failover | Podcast Oracle Data Guard Entre no nosso canal do Telegram para receber conteúdos Exclusivos sobre Banco de dados Oracle: https://t.me/joinchat/AAAAAEb7ufK-90djaVuR4Q
Summary Any software system that survives long enough will require some form of migration or evolution. When that system is responsible for the data layer the process becomes more challenging. Sriram Panyam has been involved in several projects that required migration of large volumes of data in high traffic environments. In this episode he shares some of the valuable lessons that he learned about how to make those projects successful. Announcements Hello and welcome to the Data Engineering Podcast, the show about modern data management Data lakes are notoriously complex. For data engineers who battle to build and scale high quality data workflows on the data lake, Starburst is an end-to-end data lakehouse platform built on Trino, the query engine Apache Iceberg was designed for, with complete support for all table formats including Apache Iceberg, Hive, and Delta Lake. Trusted by teams of all sizes, including Comcast and Doordash. Want to see Starburst in action? Go to dataengineeringpodcast.com/starburst (https://www.dataengineeringpodcast.com/starburst) and get $500 in credits to try Starburst Galaxy today, the easiest and fastest way to get started using Trino. This episode is supported by Code Comments, an original podcast from Red Hat. As someone who listens to the Data Engineering Podcast, you know that the road from tool selection to production readiness is anything but smooth or straight. In Code Comments, host Jamie Parker, Red Hatter and experienced engineer, shares the journey of technologists from across the industry and their hard-won lessons in implementing new technologies. I listened to the recent episode "Transforming Your Database" and appreciated the valuable advice on how to approach the selection and integration of new databases in applications and the impact on team dynamics. There are 3 seasons of great episodes and new ones landing everywhere you listen to podcasts. Search for "Code Commentst" in your podcast player or go to dataengineeringpodcast.com/codecomments (https://www.dataengineeringpodcast.com/codecomments) today to subscribe. My thanks to the team at Code Comments for their support. Your host is Tobias Macey and today I'm interviewing Sriram Panyam about his experiences conducting large scale data migrations and the useful strategies that he learned in the process Interview Introduction How did you get involved in the area of data management? Can you start by sharing some of your experiences with data migration projects? As you have gone through successive migration projects, how has that influenced the ways that you think about architecting data systems? How would you categorize the different types and motivations of migrations? How does the motivation for a migration influence the ways that you plan for and execute that work? Can you talk us through one or two specific projects that you have taken part in? Part 1: The Triggers Section 1: Technical Limitations triggering Data Migration Scaling bottlenecks: Performance issues with databases, storage, or network infrastructure Legacy compatibility: Difficulties integrating with modern tools and cloud platforms System upgrades: The need to migrate data during major software changes (e.g., SQL Server version upgrade) Section 2: Types of Migrations for Infrastructure Focus Storage migration: Moving data between systems (HDD to SSD, SAN to NAS, etc.) Data center migration: Physical relocation or consolidation of data centers Virtualization migration: Moving from physical servers to virtual machines (or vice versa) Section 3: Technical Decisions Driving Data Migrations End-of-life support: Forced migration when older software or hardware is sunsetted Security and compliance: Adopting new platforms with better security postures Cost Optimization: Potential savings of cloud vs. on-premise data centers Part 2: Challenges (and Anxieties) Section 1: Technical Challenges Data transformation challenges: Schema changes, complex data mappings Network bandwidth and latency: Transferring large datasets efficiently Performance testing and load balancing: Ensuring new systems can handle the workload Live data consistency: Maintaining data integrity while updates occur in the source system Minimizing Lag: Techniques to reduce delays in replicating changes to the new system Change data capture: Identifying and tracking changes to the source system during migration Section 2: Operational Challenges Minimizing downtime: Strategies for service continuity during migration Change management and rollback plans: Dealing with unexpected issues Technical skills and resources: In-house expertise/data teams/external help Section 3: Security & Compliance Challenges Data encryption and protection: Methods for both in-transit and at-rest data Meeting audit requirements: Documenting data lineage & the chain of custody Managing access controls: Adjusting identity and role-based access to the new systems Part 3: Patterns Section 1: Infrastructure Migration Strategies Lift and shift: Migrating as-is vs. modernization and re-architecting during the move Phased vs. big bang approaches: Tradeoffs in risk vs. disruption Tools and automation: Using specialized software to streamline the process Dual writes: Managing updates to both old and new systems for a time Change data capture (CDC) methods: Log-based vs. trigger-based approaches for tracking changes Data validation & reconciliation: Ensuring consistency between source and target Section 2: Maintaining Performance and Reliability Disaster recovery planning: Failover mechanisms for the new environment Monitoring and alerting: Proactively identifying and addressing issues Capacity planning and forecasting growth to scale the new infrastructure Section 3: Data Consistency and Replication Replication tools - strategies and specialized tooling Data synchronization techniques, eg Pros and cons of different methods (incremental vs. full) Testing/Verification Strategies for validating data correctness in a live environment Implication of large scale systems/environments Comparison of interesting strategies: DBLog, Debezium, Databus, Goldengate etc What are the most interesting, innovative, or unexpected approaches to data migrations that you have seen or participated in? What are the most interesting, unexpected, or challenging lessons that you have learned while working on data migrations? When is a migration the wrong choice? What are the characteristics or features of data technologies and the overall ecosystem that can reduce the burden of data migration in the future? Contact Info LinkedIn (https://www.linkedin.com/in/srirampanyam/) Parting Question From your perspective, what is the biggest gap in the tooling or technology for data management today? Closing Announcements Thank you for listening! Don't forget to check out our other shows. Podcast.__init__ (https://www.pythonpodcast.com) covers the Python language, its community, and the innovative ways it is being used. The Machine Learning Podcast (https://www.themachinelearningpodcast.com) helps you go from idea to production with machine learning. Visit the site (https://www.dataengineeringpodcast.com) to subscribe to the show, sign up for the mailing list, and read the show notes. If you've learned something or tried out a project from the show then tell us about it! Email hosts@dataengineeringpodcast.com (mailto:hosts@dataengineeringpodcast.com)) with your story. Links DagKnows (https://dagknows.com) Google Cloud Dataflow (https://cloud.google.com/dataflow) Seinfeld Risk Management (https://www.youtube.com/watch) ACL == Access Control List (https://en.wikipedia.org/wiki/Access-control_list) LinkedIn Databus - Change Data Capture (https://github.com/linkedin/databus) Espresso Storage (https://engineering.linkedin.com/data-replication/open-sourcing-databus-linkedins-low-latency-change-data-capture-system) HDFS (https://hadoop.apache.org/docs/r1.2.1/hdfs_design.html) Kafka (https://kafka.apache.org/) Postgres Replication Slots (https://www.postgresql.org/docs/current/logical-replication.html) Queueing Theory (https://en.wikipedia.org/wiki/Queueing_theory) Apache Beam (https://beam.apache.org/) Debezium (https://debezium.io/) Airbyte (https://airbyte.com/) Fivetran (fivetran.com) Designing Data Intensive Applications (https://amzn.to/4aAztR1) by Martin Kleppman (https://martin.kleppmann.com/) (affiliate link) Vector Databases (https://en.wikipedia.org/wiki/Vector_database) Pinecone (https://www.pinecone.io/) Weaviate (https://www.weveate.io/) LAMP Stack (https://en.wikipedia.org/wiki/LAMP_(software_bundle)) Netflix DBLog (https://arxiv.org/abs/2010.12597) The intro and outro music is from The Hug (http://freemusicarchive.org/music/The_Freak_Fandango_Orchestra/Love_death_and_a_drunken_monkey/04_-_The_Hug) by The Freak Fandango Orchestra (http://freemusicarchive.org/music/The_Freak_Fandango_Orchestra/) / CC BY-SA (http://creativecommons.org/licenses/by-sa/3.0/)
Timestamps:- 0:00 Intro- 1:48 Releases 428-430- 6:30 Introducing Denis Magda from @YugabyteDB - 7:56 JDBC, Trino's JDBC driver, and the Postgres connector- 14:08 Introducing YugabyteDB- 21:33 Demo time! Trino with PostgreSQL- 29:56 Demoing Trino with YugabyteDB- 44:57 Failover and resiliency- 56:05 Upcoming events and Trino Summit soon!
Nikolay and Michael discuss logical replication — some history, initialization, change data capture, how to scale it, some limitiations, and ways that it is getting better. Here are some links to some things they mentioned:Logical replication https://www.postgresql.org/docs/current/logical-replication.html GitLab upgraded multi-terabyte, heavily-loaded clusters with zero-downtime https://twitter.com/samokhvalov/status/1700574156222505276 pg_waldump https://www.postgresql.org/docs/current/pgwaldump.html pg_dump and external snapshots (blog post by Michael Paquier) https://paquier.xyz/postgresql-2/postgres-9-5-feature-highlight-pg-dump-snapshots/ Failover of logical replication slots in Patroni (talk by Alexander Kukushkin) https://www.youtube.com/watch?v=SllJsbPVaow Our episode on replication https://postgres.fm/episodes/replication ~~~What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc!~~~Postgres FM is brought to you by:Nikolay Samokhvalov, founder of Postgres.aiMichael Christofides, founder of pgMustardWith special thanks to:Jessie Draws for the amazing artwork
גיא ואיתן מדברים על כמה חידושים מעניינים בעולם של Azure SQL ועוד: Data API builder for Azure SQL Databases - Public Preview Azure Podcast Episode 457 - Data API Builder The query_antipattern extended event SQL Assessment - Microsoft's Best Practices Checker | Taiob Ali dbachecks sys.dm_exec_query_plan_stats (Transact-SQL) Find_Top_Exec_Plans_to_Optimize.sql Slow Startup, Failover, and Restore Times with In-Memory OLTP - Brent Ozar Unlimited The best of SQLbits 2023! at Microsoft Reactor Tel Aviv
To get the show notes as well as get notified of new episodes, visit: https://www.scalingpostgres.com/episodes/262-pg_failover_slots-standby-logical-decoding-trusted-language-extensions-postgres-package-manager/ In this episode of Scaling Postgres, we discuss the pg_failover_slots extension, how PG16 allows logical decoding on standbys, what are trusted language extensions and how a package manager has been built for them.
Improve hybrid workloads with updates to SQL Server 2022, now generally available. Link local SQL Servers to Azure SQL Managed Instances for bidirectional disaster recovery, achieve massive speedups with differential snapshot-based backup and restore, as well as anywhere management of your SQL Servers with Azure Arc-enabled SQL provisioning, and new pay-as-you-go licensing. For raw performance, we'll demonstrate intelligent Degree of Parallelism feedback where SQL optimizes the thread count of queries automatically. Bob Ward, Principal Architect for Microsoft SQL Server, joins Jeremy Chapman to share improvements to query performance, Azure integration, and costs for both licensing and compute, local or in the cloud. ► QUICK LINKS: 00:00 - Introduction 01:01 - Backup and disaster recovery 02:31 - Failover between SQL Server and Managed Instance 05:24 - Snapshot backups 07:57 - Restore a snapshot backup 08:59 - SQL Server management: Pay-as-you-go 10:40 - SQL Server performance: Query optimizations 13:21 - Wrap up ► Link References: Start a free version of SQL Server 2022 at https://aka.ms/getsqlserver2022 Check out our free online workshop at https://aka.ms/sql2022workshop ► Unfamiliar with Microsoft Mechanics? As Microsoft's official video series for IT, you can watch and share valuable content and demos of current and upcoming tech from the people who build it at Microsoft. • Subscribe to our YouTube: https://www.youtube.com/c/MicrosoftMechanicsSeries • Talk with other IT Pros, join us on the Microsoft Tech Community: https://techcommunity.microsoft.com/t5/microsoft-mechanics-blog/bg-p/MicrosoftMechanicsBlog • Watch or listen from anywhere, subscribe to our podcast: https://microsoftmechanics.libsyn.com/podcast ► Keep getting this insider knowledge, join us on social: • Follow us on Twitter: https://twitter.com/MSFTMechanics • Share knowledge on LinkedIn: https://www.linkedin.com/company/microsoft-mechanics/ • Enjoy us on Instagram: https://www.instagram.com/msftmechanics/ • Loosen up with us on TikTok: https://www.tiktok.com/@msftmechanics
Segment 3 - Top 6 Reasons Why Pending Home Sales Fall Through!Barb, I know that not every contract sale goes through, what are the top reasons why Pending Sales might Fail?The good news is that it does not happen very often. When it does typically it happens early in the process. Seller's agent then often finds they have to explain to subsequent buyers why the deal fell out.#1 – Buyer's Remorse• Caught up in a multiple bid• Happens during buyer due diligence phase• After reconsidering thought they paid too much• Waived a contingency they did not want to waive#2 – Home Inspections• Buyers' home inspection reveals too many issues for buyers• This is why getting a pre-inspection is helpful for Home Sellers• Typically will offer to fix or offer a financial credit, or use a home warranty• Most of the issues can be resolved• It is another point after the initial contract negotiation#3 – Low Appraisals OR Appraisal Conditions• Appraisers' job is to assign a value for the lender and substantiate it meets loan guidelines• Window Well story• Solutions:• Sellers drop price• Buyer come up with diff in cash• Most offer is a negotiation in betweenYou are listening to the Real Estate Voice with myself Barb Schlinker of Your Home Sold Guaranteed Realty, you canreach me at 719-301-3900We are talking about Why Pending Sales Fall Through…Barb how often do home buyers get their loans denied??#4 – Buyer Financing Gets Denied by LenderHow Does this happen if they already had a pre-approval?• Counts for 1/3 of all contract failures• More now with Interest Rates Rising• Pre Approval vs Pre QualificationThe lender has verified documentation that the buyer can get the loan approved.• Pre-QualificationThe lender has pulled credit and gives pre-qual based on what buyer saysa. Fails over Income not being acceptedb. Fails over JOB not localc. Fail over undisclosed tax debtd. Failover undisclosed child support obligationse. Failover job loss during the processThe lender did not vet: Need a great lender that can really properly vet the buyer OR PROPERTY!!!#5 – Buyer Purchases Things on Credit to Cause Loan to Get Denieda. Closer to closing BOUGHT a carb. Go to AFW, buy furniturec. Go buy a refrigerator on Credit#6 – Contract was contingent on the Buyer Selling Their Homea. These can be very tricky but we have ways to negotiate these for a win-winb. Eg: Give the seller a kick-out clausec. Inform Seller about the ability of Buyer to Sell Their Homed. Suggest Bridge financinge. Right of Refusal explainedWe have Solutions for Home Buyers with a House to Sell!‘Cash Investor offer' on their current home - RetailRecently got an offer on one of my listings where the buyer was selling a House in North Denver According to Zillow it was overpriced by at least $80,000 Seller would not take that offer But we were able to leverage that high offer against another one a get top dollar for the seller.You are listening to the Real Estate Voice with Barb Schlinker of Your Home Sold Guaranteed Realty, if you are thinking of making a move Barb at 719-301-3900 or visit BarbHasTheBuyers.comWhen we come back we will be discussing: The top Five Seller Mistakes That Can Cause a Home NOT to Sell & Hot New Listings#realestatevoice #barbschlinker #coloradosprings #yourhomesoldguaranteedrealtycolorado #barbhasth
![Engenharia de Dados [Cast]](https://ivyfm.s3.amazonaws.com/i320/1212346.jpg)
Nesse episódio, Luan Moreno e Mateus Oliveira trazem as novidades da conferência data Summit 2022, sobre o Snowflake a plataforma nativa da nuvem que elimina a necessidade de data warehouses, data lakes e data marts separados, permitindo o compartilhamento seguro de dados em toda a organização e as novidades são As melhorias no snowflake:Unistore;Snowflake e iceberg Tables;Replicação, Failover e disaster recover; e muito mais dentro do nosso Engenharia de Dados[Cast] fique agente ate o final!Anúncios e Novidades da Conferência do Snowflake Summit 2022, segue informações:https://www.snowflake.com/summit/ StreamLithttps://events.snowflake.com/summit/agenda/session/887881 Inovações na Plataformahttps://events.snowflake.com/summit/agenda/session/849842Inovação do Armazenamento de Dados com Unis torehttps://events.snowflake.com/summit/agenda/session/834016 Snowflake Governancehttps://events.snowflake.com/summit/agenda/session/834019 O Futuro da Colaboraçãohttps://events.snowflake.com/summit/agenda/session/834018 Replicação e Failoverhttps://events.snowflake.com/summit/agenda/session/834021 Expansão das Capacidades do Storage com Apache Iceberghttps://events.snowflake.com/summit/agenda/session/884559 No YouTube possuímos um canal de Engenharia de Dados com os tópicos mais importantes dessa área e com lives todas as quartas-feiras.https://www.youtube.com/channel/UCnErAicaumKqIo4sanLo7vQ Quer ficar por dentro dessa área com posts e updates semanais, então acesse o LinkedIN para não perder nenhuma notícia.https://www.linkedin.com/in/luanmoreno/ Disponível no Spotify e na Apple Podcasthttps://open.spotify.com/show/5n9mOmAcjra9KbhKYpOMqYhttps://podcasts.apple.com/br/podcast/engenharia-de-dados-cast/ Luan Moreno = https://www.linkedin.com/in/luanmoreno/
Doug Neumann, Co-Founder and CEO of Arpio discusses the best practices for good data protection hygiene when moving to the cloud, disaster recovery tips, and keeping safe from ransomware whether on-prem or in the cloud.
https://go.dok.community/slack https://dok.community/ From the DoK Day EU 2022 (https://youtu.be/Xi-h4XNd5tE) It only looks simple to run databases in Kubernetes. In fact, it is too many things needed to be considered before running any database in Kubernetes. Failover and traffic switching, replication and data consistency/loss after failover, upgrades, DB and node-level configuration, CNI, backups, monitoring, etc. After this talk, you will have a complete list of questions that should be checked before running a database in production. Mykola has been shorting “Time-to-market” in software companies for more than ten years. Most of his career he has been focused on the *development* of monitoring, update and deployment systems.
Michael Ciancio, Vice President of Product Marketing, talks through how communication tools and telehealth can help improve your patients' experiences in hospitals, dentists, and the healthcare industry as a whole. Failover, security, and ease of use make CPaaS an excellent choice for healthcare software solutions.
In this episode of Scaling Postgres, we discuss how to monitor DML & DDL progress, using more SQL, one way to handle replication slot fail-over, and recent Postgres contributors. Subscribe at https://www.scalingpostgres.com to get notified of new episodes. Links for this episode: https://postgres.ai/blog/20220114-progress-bar-for-postgres-queries-lets-dive-deeper https://dev.to/yugabyte/quick-on-active-sql-from-pgstatactivity-27hi https://pgdash.io/blog/more-sql-less-code-with-postgresql.html http://rhaas.blogspot.com/2022/01/who-contributed-to-postgresql.html https://blog.crunchydata.com/blog/a-postgres-primer-for-oracle-dbas https://blog.crunchydata.com/blog/postgis-3.2-new-and-improved https://www.percona.com/blog/creating-a-standby-cluster-with-the-percona-distribution-for-postgresql-operator/ https://postgresql.life/post/emil_shkolnik/ https://www.rubberduckdevshow.com/episodes/25-javascript-options-in-rails-7/
A first look at SQL Server 2022—the latest Azure-enabled database and data integration innovations. See what it means for your hybrid workloads, including first-time bi-directional high availability and disaster recovery between Azure SQL Managed Instance and SQL Server, Azure Synapse Link integration with SQL for ETL free near real-time reporting and analytics over your operational data, and new next-generation built-in query intelligence with parameter sensitive plan optimization. Bob Ward, SQL engineering leader, joins Jeremy Chapman to share the focus on this round of updates. ► QUICK LINKS: 00:00 - Introduction 00:38 - Overview of updates 02:19 - Disaster recovery 04:26 - Failover and restore example 06:16 - Azure Synapse integration 09:04 - Built-in query intelligence 10:19 - See it in action 12:52 - Wrap up ► Link References: Learn more about SQL Server 2022 at https://aka.ms/SQLServer2022 Apply to join our private preview, and try it out at https://aka.ms/EAPSignUp ► Unfamiliar with Microsoft Mechanics? We are Microsoft's official video series for IT. You can watch and share valuable content and demos of current and upcoming tech from the people who build it at Microsoft. Subscribe to our YouTube: https://www.youtube.com/c/MicrosoftMechanicsSeries?sub_confirmation=1 Join us on the Microsoft Tech Community: https://techcommunity.microsoft.com/t5/microsoft-mechanics-blog/bg-p/MicrosoftMechanicsBlog Watch or listen via podcast here: https://microsoftmechanics.libsyn.com/website ► Keep getting this insider knowledge, join us on social: Follow us on Twitter: https://twitter.com/MSFTMechanics Follow us on LinkedIn: https://www.linkedin.com/company/microsoft-mechanics/
In this episode of Scaling Postgres, we discuss new releases of Postgres due to a man-in-the-middle vulnerability, the high availability solution pg_auto_failover, lesser known Postgres features and LZ4 compression. Subscribe at https://www.scalingpostgres.com to get notified of new episodes. Links for this episode: https://www.postgresql.org/about/news/postgresql-141-135-129-1114-1019-and-9624-released-2349/ https://www.enterprisedb.com/blog/postgres-mitm21-vulnerabilities https://www.youtube.com/watch?v=fuYwlVw0e_o https://www.pgbouncer.org/2021/11/pgbouncer-1-16-1 https://tapoueh.org/blog/2021/11/an-introduction-to-the-pg_auto_failover-project/ https://hakibenita.com/postgresql-unknown-features https://www.postgresql.fastware.com/blog/what-is-the-new-lz4-toast-compression-in-postgresql-14 https://blog.jooq.org/postgresql-14s-enable_memoize-for-improved-performance-of-nested-loop-joins/ https://blog.timescale.com/blog/generating-more-realistic-sample-time-series-data-with-postgresql-generate_series/ https://blog.crunchydata.com/blog/multifactor-sso-authentication-for-postgres-on-kubernetes https://dev.to/yugabyte/postgres-pgagroal-connectionpool-23fc https://blog.rustprooflabs.com/2021/11/postgis-find-openstreetmap-missing-crossing https://postgresql.life/post/john_naylor/ https://www.rubberduckdevshow.com/episodes/20-how-do-you-start-testing/
In this episode of Data Exposed: MVP Edition, Javier Villegas will describe the concept of SQL Server Failover Cluster Instances (FCI) covering how we can use them for High Availability purposes using Azure Virtual Machines and the different Azure Storage options. Recently introduced in Azure VMs, SQL FCIs allows to easily migrate HA workload from on-premises environments to the cloud with the added benefit of application compatibility.[00:30] About Javier Villegas[01:20] Failover cluster overview[05:36] SQL Server Failover Cluster Instances in Azure[09:09] Demo: Created shared disc in Azure portal[11:42] Getting startedAbout Javier Villegas:Javier Villegas is IT Director (DBA & BI Services) at Mediterranean Shipping Company with more than 20 years of experience working with SQL Server, Including Azure SQL.His specialization is Administration, Performance Tuning, High Availability and Disaster Recovery.Javier is a Microsoft MVP Data Platform since 2016 and MCT.He is a frequent speaker in technical conferences and events such as SQL Saturdays, PASS Virtual Groups, PASS Marathons, 24 Hours SQL PASS , vOpen , GroupBy ,DataPlatformGeeks , Data Saturdays and Azure Global Bootcamps.He is one of the group leaders of SQL Argentina Community and Microsoft Azure Data Advisory Board Member.About MVPs:Microsoft Most Valuable Professionals, or MVPs, are technology experts who passionately share their knowledge with the community. They are always on the "bleeding edge" and have an unstoppable urge to get their hands on new, exciting technologies. They have a very deep knowledge of Microsoft products and services, while also being able to bring together diverse platforms, products, and solutions, to solve real-world problems. MVPs make up a global community of over 4,000 technical experts and community leaders across 90 countries/regions and are driven by their passion, community spirit, and the quest for knowledge. Above all and in addition to their amazing technical abilities, MVPs are always willing to help others - that's what sets them apart. Learn more: https://aka.ms/mvpprogram
In this episode of Data Exposed: MVP Edition, Javier Villegas will describe the concept of SQL Server Failover Cluster Instances (FCI) covering how we can use them for High Availability purposes using Azure Virtual Machines and the different Azure Storage options. Recently introduced in Azure VMs, SQL FCIs allows to easily migrate HA workload from on-premises environments to the cloud with the added benefit of application compatibility.[00:30] About Javier Villegas[01:20] Failover cluster overview[05:36] SQL Server Failover Cluster Instances in Azure[09:09] Demo: Created shared disc in Azure portal[11:42] Getting startedAbout Javier Villegas:Javier Villegas is IT Director (DBA & BI Services) at Mediterranean Shipping Company with more than 20 years of experience working with SQL Server, Including Azure SQL.His specialization is Administration, Performance Tuning, High Availability and Disaster Recovery.Javier is a Microsoft MVP Data Platform since 2016 and MCT.He is a frequent speaker in technical conferences and events such as SQL Saturdays, PASS Virtual Groups, PASS Marathons, 24 Hours SQL PASS , vOpen , GroupBy ,DataPlatformGeeks , Data Saturdays and Azure Global Bootcamps.He is one of the group leaders of SQL Argentina Community and Microsoft Azure Data Advisory Board Member.About MVPs:Microsoft Most Valuable Professionals, or MVPs, are technology experts who passionately share their knowledge with the community. They are always on the "bleeding edge" and have an unstoppable urge to get their hands on new, exciting technologies. They have a very deep knowledge of Microsoft products and services, while also being able to bring together diverse platforms, products, and solutions, to solve real-world problems. MVPs make up a global community of over 4,000 technical experts and community leaders across 90 countries/regions and are driven by their passion, community spirit, and the quest for knowledge. Above all and in addition to their amazing technical abilities, MVPs are always willing to help others - that's what sets them apart. Learn more: https://aka.ms/mvpprogram
Diese Folge beschäftigt sich - wie man dem Titel entnehmen kann - mit der Cloud. Es geht aber nicht um die aktuellen High-Level-Services die AWS, Microsoft, Google & Co. in ihr Portfolio aufgenommen haben. Wir konzentrieren uns auf strategische Aspekte und diskutieren … ob Themen wie Failover, Infrastruktur-Security, etc. noch relevant sind, wenn man in der Cloud ist [1], was die eigentlichen Vorteile von Cloud-Services sind, ob, wann und warum man den Rückzug aus der Cloud überlegen sollte (Stichwort: Cloud Repatriation) [2] - und welche Herausforderungen dann auf einen warten - bzw. was man tun kann, um auch wirtschaftliche Aspekte und Cloud-Nutzung in Einklang zu bringen. Im Smalltalk-Bereich geht es dieses mal um Job-Ads, Trigema's Haltung zu Remote Work, ein Erfahrungsbericht zu Workation, Google's missglücktes Chrome OS Update und China's Crack-Down bei deren Tech-Giganten. Und wir feiern ein kleines Jubiläum! Wer diese Themen überspringen will, startet ab Minute 37:30. Hört rein und gibt uns gerne bei Twitter (@hmzePodcast) oder per E-Mail (webmaster@hmze.io) Feedback. Links [1] https://aws.amazon.com/de/message/2329B7/ [2] https://a16z.com/2021/05/27/cost-of-cloud-paradox-market-cap-cloud-lifecycle-scale-growth-repatriation-optimization/
Windows Failover Clustering (WFC) is one of the oldest technologies utilized by Windows Server for the high availability of systems and services, whether that be traditional on-premise IT infrastructures or hybrid and multi cloud infrastructures in Microsoft Azure. Failover clustering and other relevant Microsoft technologies such as Always On Availability Groups are in many cases the cornerstone of a resilient and solid infrastructure design. In various real life scenarios however, administrators come across incidents and issues in their Windows failover clustering infrastructure which have a significant impact on business operations and may incur catastrophic downtime for services offered to customers. --- Send in a voice message: https://anchor.fm/stefanoscloud/message
O CANAL UM INVENTOR QUALQUER vai produzir um Curso de Amazon Web Services (AWS) Grátis! Serão 10 episódios onde você vai aprender a publicar na prática uma aplicação na Amazon Web Services do zero, ou seja, desde a Configuração do DNS, levantar suas instâncias EC2, banco de dados até o Auto Scale e a liberação da sua aplicação para a Internet! As 10 Aulas de AWS serão específicas para cada etapa que você deve cumprir para publicar uma aplicação na nuvem usando a AWS:
This week's Prog-Watch is another straight-up variety program, with lots of diverse, contemporary progressive rock for your listening enjoyment! Tune in to hear great stuff from Steven Wilson, Failover, Simon McKechnie, Lunatic Soul, Steve Hackett, Transatlantic, Mushroom, The Bedlam Furnaces, SomeWhereOut, Bridgend, The Prog Collective, and Null Terminator!
In this episode with Dani Ljepava, we will show you how to manually trigger a planned failover on SQL Managed Instance to test your applications for fault tolerance and will talk about best practices for your applications to achieve tolerance to transient faults typical for the cloud environments. Transient faults in the cloud (for example software patching, security updates, failover, and similar) include a momentary loss of network connectivity, temporary unavailability of a service, or timeouts when service is busy. These faults are often self-correcting due to which your applications need to be able to handle such occurrences with the appropriate retry logic. While migrating legacy apps to the cloud or developing new cloud-born apps, it is strongly advised to ensure that your applications follow the best practices disclosed in this episode helping you build cloud-ready apps.[00:46] About Dani Ljepava[01:30] Transient errors in the cloud[02:50] Cloud Ready Apps[04:07] Understanding failover as part of HA on SQL MI[06:00] Demo: User-initiated failover on SQL Managed Instance[11:35] How to check if failovers occurred[12:35] Best practicesResources:User-initiated manual failover on SQL Managed Instance
In this episode with Dani Ljepava, we will show you how to manually trigger a planned failover on SQL Managed Instance to test your applications for fault tolerance and will talk about best practices for your applications to achieve tolerance to transient faults typical for the cloud environments. Transient faults in the cloud (for example software patching, security updates, failover, and similar) include a momentary loss of network connectivity, temporary unavailability of a service, or timeouts when service is busy. These faults are often self-correcting due to which your applications need to be able to handle such occurrences with the appropriate retry logic. While migrating legacy apps to the cloud or developing new cloud-born apps, it is strongly advised to ensure that your applications follow the best practices disclosed in this episode helping you build cloud-ready apps.[00:46] About Dani Ljepava[01:30] Transient errors in the cloud[02:50] Cloud Ready Apps[04:07] Understanding failover as part of HA on SQL MI[06:00] Demo: User-initiated failover on SQL Managed Instance[11:35] How to check if failovers occurred[12:35] Best practicesResources:User-initiated manual failover on SQL Managed Instance
Przygotował Mariusz Ferdyn, Senior Cloud Architekt z Chmura Asseco Sprawdź też naszego bloga technologicznego: https://pl.asseco.com/kariera/blog/
In this episode of Scaling Postgres, we discuss stat tracking, temporary tables, a new utility called pg_squeeze and an update to pg_auto_failover. Subscribe at https://www.scalingpostgres.com to get notified of new episodes. Links for this episode: https://pgcraftsman.io/2020/10/15/tracking-postgres-stats/ https://www.cybertec-postgresql.com/en/postgresql-sophisticating-temporary-tables/ https://www.cybertec-postgresql.com/en/pg_squeeze-optimizing-postgresql-storage/ https://www.citusdata.com/blog/2020/10/10/whats-new-in-pg-auto-failover/ https://blog.arkency.com/multitenancy-with-postgres-schemas-key-concepts-explained/ https://info.crunchydata.com/blog/postgresql-monitoring-for-app-developers-alerts-troubleshooting https://info.crunchydata.com/blog/tuning-your-postgres-database-for-high-write-loads https://dataegret.com/2020/10/postgres-13-observability-updates/ http://blog.cleverelephant.ca/2020/10/podcasts.html https://postgresql.life/post/greg_sabino_mullane/
Rob Fisher and I have a great program lined up for you this week on Prog-Watch! I'll be spinning music from The Tangent, Man-Akin, I Am The Manic Whale, Morse, Portnoy and George, Starmen, Failover, Joost Maglev, Tiger Moth Tales, and Three Colours Dark! Plus, Rob will be taking us on a voyage of Progressive Discovery with the fabulous new album, Once Around the Sun, by the Scottish band Long Earth!
We're anxiously preparing for the launch of The Failover Plan Podcast in July. In this introduction, listen to Shane describe why he started this journey, and exactly what we will be talking about in our upcoming episodes. Subscribe to our newsletter and to the podcast so you can hear the first episode when it officially launches!
In this episode of Scaling Postgres, we discuss safety systems, the purpose and existence of failover slots, complications with transaction IDs and how to repartition without downtime. Subscribe at https://www.scalingpostgres.com to get notified of new episodes. Links for this episode: https://momjian.us/main/blogs/pgblog/2020.html#June_8_2020 https://www.2ndquadrant.com/en/blog/failover-slots-postgresql/ https://www.2ndquadrant.com/en/blog/10-things-postgres-could-improve-part-1/ https://info.crunchydata.com/blog/control-runaway-postgres-queries-with-statement-timeout https://blog.hagander.net/repartitioning-with-logical-replication-in-postgresql-13-246/ https://www.percona.com/blog/2020/06/09/multi-master-replication-solutions-for-postgresql/ https://www.cybertec-postgresql.com/en/composite-type-performance-issues-in-postgresql/ https://www.highgo.ca/2020/06/12/transactions-in-postgresql-and-their-mechanism/ http://blog.cleverelephant.ca/2020/04/developer-life.html http://blog.cleverelephant.ca/2020/06/developer-life-2.html https://info.crunchydata.com/blog/postgis-with-postgresql-operator https://www.pgbouncer.org/2020/06/pgbouncer-1-14-0 https://www.2ndquadrant.com/en/blog/how-to-use-adaboost-machine-learning-model-with-2uda-postgresql-and-orange-part-6/ https://postgresql.life/post/oleksii_kliukin/
In this video, Anna Hoffman and Jeroen ter Heerdt discuss and show how to create auto-failover groups in Azure SQL using PowerShell notebooks and a Java application. This video was based on a tutorial, which you can follow here: https://docs.microsoft.com/en-us/azure/sql-database/sql-database-implement-geo-distributed-database?tabs=azure-powershell&WT.mc_id=dataexposed-c9-niner. To compare geo-replication and auto-failover groups, refer to the table here: https://docs.microsoft.com/en-us/azure/sql-database/sql-database-business-continuity#compare-geo-replication-with-failover-groups&WT.mc_id=dataexposed-c9-niner.[00:30] Background[01:15] Comparing geo-replication and auto-failover groups[02:12] Tutorial for implementing a geo-distributed database[02:45] Demo starts[04:55] Failover initiated[06:21] Fail back and summaryFollow Anna Hoffman and Jeroen ter Heerdt on Twitter at https://twitter.com/AnalyticAnna and https://twitter.com/JeroenterHeerdt.
In this video, Anna Hoffman and Jeroen ter Heerdt discuss and show how to create auto-failover groups in Azure SQL using PowerShell notebooks and a Java application. This video was based on a tutorial, which you can follow here: https://docs.microsoft.com/en-us/azure/sql-database/sql-database-implement-geo-distributed-database?tabs=azure-powershell&WT.mc_id=dataexposed-c9-niner. To compare geo-replication and auto-failover groups, refer to the table here: https://docs.microsoft.com/en-us/azure/sql-database/sql-database-business-continuity#compare-geo-replication-with-failover-groups&WT.mc_id=dataexposed-c9-niner.[00:30] Background[01:15] Comparing geo-replication and auto-failover groups[02:12] Tutorial for implementing a geo-distributed database[02:45] Demo starts[04:55] Failover initiated[06:21] Fail back and summaryFollow Anna Hoffman and Jeroen ter Heerdt on Twitter at https://twitter.com/AnalyticAnna and https://twitter.com/JeroenterHeerdt.
Failover is the technique of switching to a redundant backup machine when a certain node goes down. This is a very common implementation for achieving high availability and it is often mixed with different load balancing techniques such as layer 4 and layer 7 balancing. In this video i want to go through following * What is Failover? 1:47 * ARP - Address Resolution Protocol 3:00 * VIP & VRRP 5:40 * High-availability Example 12:12 Cards 4:00 ARP 12:50 docker javascript 18:00 OSI Model --- Send in a voice message: https://anchor.fm/hnasr/message
Welcome to the History of Computing Podcast, where we explore the history of information technology. Because understanding the past prepares us for the innovations of the future! Today we're going to cover one of the most important and widely distributed server platforms ever: The Apache Web Server. Today, Apache servers account for around 44% of the 1.7 Billion web sites on the Internet. But at one point it was zero. And this is crazy, it's down from over 70% in 2010. Tim Berners-Lee had put the first website up in 1991 and what we now know as the web was slowly growing. In 1994 and begins with the National Center for Supercomputing Applications, University of Illinois, Urbana-Champaign. Yup, NCSA is also the organization that gave us telnet and Mosaic, the web browser that would evolve into Netscape. After Rob leaves NCSA, the HTTPdaemon goes a little, um, dormant in development. The distress had forked and the extensions and bug fixes needed to get merged into a common distribution. Apache is a free and open source web server that was initially created by Robert McCool and written in C in 1995, the same year Berners-Lee coined the term World Wide Web. You can't make that name up. I'd always pictured him as a cheetah wearing sunglasses. Who knew that he'd build a tool that would host half of the web sites in the world. A tool that would go on to be built into plenty of computers so they can spin up sharing services. Times have changed since 1995. Originally the name was supposedly a cute name referring to a Patchy server, given that it was based on lots of existing patches of craptostic code from NCSA. So it was initially based on NCSA HTTPd is still alive and well all the way up to the configuration files. For example, on a Mac these are stored at /private/etc/apache2/httpd.conf. The original Apache group consisted of * Brian Behlendorf * Roy T. Fielding * Rob Hartill * David Robinson * Cliff Skolnick * Randy Terbush * Robert S. Thau * Andrew Wilson And there were additional contributions from Eric Hagberg, Frank Peters, and Nicolas Pioch. Within a year of that first shipping, Apache had become the most popular web server on the internet. The distributions and sites continued to grow to the point that they formed the Apache Software Foundation that would give financial, legal, and organizational support for Apache. They even started bringing other open source projects under that umbrella. Projects like Tomcat. And the distributions of Apache grew. Mod_ssl, which brought the first SSL functionality to Apache 1.17, was released in 1998. And it grew. The Apache Foundation came in 1999 to make sure the project outlived the participants and bring other tools under the umbrella. The first conference, ApacheCon came in 2000. Douglas Adams was there. I was not. There were 17 million web sites at the time. The number of web sites hosted on Apache servers continued to rise. Apache 2 was released in 2004. The number of web sites hosted on Apache servers continued to rise. By 2009, Apache was hosting over 100 million websites. By 2013 Apache had added that it was named “out of a respect for the Native American Indian tribe of Apache”. The history isn't the only thing that was rewritten. Apache itself was rewritten and is now distributed as Apache 2.0. there were over 670 million web sites by then. And we hit 1 billion sites in 2014. I can't help but wonder what percentage collections of fart jokes. Probably not nearly enough. But an estimated 75% are inactive sites. The job of a web server is to serve web pages on the internet. Those were initially flat HTML files but have gone on to include CGI, PHP, Python, Java, Javascript, and others. A web browser is then used to interpret those files. They access the .html or .htm (or other one of the other many file types that now exist) file and it opens a page and then loads the text, images, included files, and processes any scripts. Both use the http protocol; thus the URL begins with http or https if the site is being hosted over ssl. Apache is responsible for providing the access to those pages over that protocol. The way the scripts are interpreted is through Mods. These include mod_php, mod_python, mod_perl, etc. The modular nature of Apache makes it infinitely extensible. OK, maybe not infinitely. Nothing's really infinite. But the Loadable Dynamic Modules do make the system more extensible. For example, you can easily get TLS/SSL using mod_ssl. The great thing about Apache and its mods are that anyone can adapt the server for generic uses and they allow you to get into some pretty really specific needs. And the server as well as each of those mods has its source code available on the Interwebs. So if it doesn't do exactly what you want, you can conform the server to your specific needs. For example, if you wanna' hate life, there's a mod for FTP. Out of the box, Apache logs connections, includes a generic expression parser, supports webdav and cgi, can support Embedded Perl, PHP and Lua scripting, can be configured for public_html per-user web-page, supports htaccess to limit access to various directories as one of a few authorization access controls and allows for very in depth custom logging and log rotation. Those logs include things like the name and IP address of a host as well as geolocations. Can rewrite headers, URLs, and content. It's also simple to enable proxies Apache, along with MySQL, PHP and Linux became so popular that the term LAMP was coined, short for those products. The prevalence allowed the web development community to build hundreds or thousands of tools on top of Apache through the 90s and 2000s, including popular Content Management Systems, or CMS for short, such as Wordpress, Mamba, and Joomla. * Auto-indexing and content negotiation * Reverse proxy with caching * Multiple load balancing mechanisms * Fault tolerance and Failover with automatic recovery * WebSocket, FastCGI, SCGI, AJP and uWSGI support with caching * Dynamic configuration * Name- and IP address-based virtual servers * gzip compression and decompression * Server Side Includes * User and Session tracking * Generic expression parser * Real-time status views * XML support Today we have several web servers to choose from. Engine-X, spelled Nginx, is a newer web server that was initially released in 2004. Apache uses a thread per connection and so can only process the number of threads available; by default 10,000 in Linux and macOS. NGINX doesn't use threads so can scale differently, and is used by companies like AirBNB, Hulu, Netflix, and Pinterest. That 10,000 limit is easily controlled using concurrent connection limiting, request processing rate limiting, or bandwidth throttling. You can also scale with some serious load balancing and in-band health checks or with one of the many load balancing options. Having said that, Baidu.com, Apple.com, Adobe.com, and PayPal.com - all Apache. We also have other web servers provided by cloud services like Cloudflare and Google slowly increasing in popularity. Tomcat is another web server. But Tomcat is almost exclusively used to run various Java servers, servelets, EL, webscokets, etc. Today, each of the open source projects under the Apache Foundation has a Project Management committee. These provide direction and management of the projects. New members are added when someone who contributes a lot to the project get nominated to be a contributor and then a vote is held requiring unanimous support. Commits require three yes votes with no no votes. It's all ridiculously efficient in a very open source hacker kinda' way. The Apache server's impact on the open-source software community has been profound. It iis partly explained by the unique license from the Apache Software Foundation. The license was in fact written to protect the creators of Apache while giving access to the source code for others to hack away at it. The Apache License 1.1 was approved in 2000 and removed the requirement to attribute the use of the license in advertisements of software. Version two of the license came in 2004, which made the license easier for projects that weren't from the Apache Foundation. This made it easier for GPL compatibility, and using a reference for the whole project rather than attributing software in every file. The open source nature of Apache was critical to the growth of the web as we know it today. There were other projects to build web servers for sure. Heck, there were other protocols, like Gopher. But many died because of stringent licensing policies. Gopher did great until the University of Minnesota decided to charge for it. Then everyone realized it didn't have nearly as good of graphics as other web servers. Today the web is one of the single largest growth engines of the global economy. And much of that is owed to Apache. So thanks Apache, for helping us to alleviate a little of the suffering of the human condition for all creatures of the world. By the way, did you know you can buy hamster wheels on the web. Or cat food. Or flea meds for the dog. Speaking of which, I better get back to my chores. Thanks for taking time out of your busy schedule to listen! You probably get to your chores as well though. Sorry if I got you in trouble. But hey, thanks for tuning in to another episode of the History of Computing Podcast. We're lucky to have you. Have a great day!
In this episode of Scaling Postgres, we discuss the benefits of pg_receivewal, how to setup simple application failover, new pg_checksums and setting up pgBouncer. Subscribe at https://www.scalingpostgres.com to get notified of new episodes. Links for this episode: https://www.cybertec-postgresql.com/en/never-lose-a-postgresql-transaction-with-pg_receivewal/ https://www.percona.com/blog/2019/10/23/seamless-application-failover-using-libpq-features-in-postgresql/ https://techcommunity.microsoft.com/t5/Azure-Database-for-PostgreSQL/Auto-Failover-with-PostgreSQL-12/ba-p/917637 https://www.credativ.com/blog/pgchecksums-10-released https://www.enterprisedb.com/blog/pgbouncer-tutorial-installing-configuring-and-testing-persistent-postgresql-connection-pooling https://info.crunchydata.com/blog/monitoring-postgresql-clusters-in-kubernetes https://blog.panoply.io/a-beginners-guide-to-formatting-dates-in-sql http://postgis.net/2019/10/20/postgis-3.0.0/ https://www.alibabacloud.com/blog/using-postgresql-to-create-an-efficient-search-engine_595344 https://www.alibabacloud.com/blog/the-rum-index-and-full-text-search-using-postgresql_595343 https://www.alibabacloud.com/blog/using-the-built-in-and-custom-ranking-algorithms-of-postgresql-for-full-text-searches_595345 https://www.alibabacloud.com/blog/term-frequency-statistics-in-postgresql-full-text-searches_595342
IT Manager Podcast (DE, german) - IT-Begriffe einfach und verständlich erklärt
Heute dreht sich alles um das Thema: „Was ist eigentlich ein SD-Wan?“ Die Abkürzung SD-Wan steht für Software-Defined Wide Area Network. Und wie der Name schon vermuten lässt, handelt es sich hierbei um ein Weitverkehrsnetz bei dem die Netzwerksteuerung softwaremäßig erfolgt und von der Hardware getrennt ist. Es ist noch ein sehr junges Verfahren, dessen Ursprünge im Software-defined Networking (SDN) liegen. Im Gegensatz zur traditionellen WAN-Architektur, die wie Sie wissen sehr teuer und komplex sind, ermöglicht SD-WAN eine einfache und kostengünstige Einrichtung und Bereitstellung von WAN-Diensten an verteilten Standorten und bietet eine zentralisierte Verwaltung, netzwerkweite Kontrolle und Transparenz. SD-WAN ist eine Overlay-Architektur, die die traditionelle WAN-Architektur um eine Software-Ebene erweitert. Beim SD-WAN-Konzept spielen Controller eine wichtige Rolle, da sie die diversen Switches und Router steuern und die Policies an die Netzknoten verteilen. Dabei verwaltet die Software alle netzrelevanten Daten zentral. Sprich alle Informationen über das Routing, das Netzwerkmanagement, die Konfiguration und die Sicherheitsrichtlinien. Außerdem schafft die Softwaresteuerung flexible Strukturen, denen problemlos neue Links, Pfade oder Verbindungsstrukturen hinzugefügt oder geändert werden können. Ebenso können die Sicherheitsrichtlinien flexibel eingesetzt werden. Wie funktioniert SD-WAN nun eigentlich genau? Im Groben müssen Sie sich das so vorstellen: Die softwarebasierte Virtualisierung mittels Software-Defined Networking (SDN) Technologie und Network Function Virtualization (NFV) ermöglicht eine Netzwerk-Abstraktion. Die Netzwerkmanagement-Ebene, die auch Kontroll-Ebene (Control Plane) genannt wird und die optimale effektivste Route durch das Netzwerk bestimmt, wird dabei von der Datentransport-Ebene (Data Plane), die für die Weiterleitung der Datenpakete zuständig ist entkoppelt und in ein Cloud-System ausgelagert. Die Netzwerkmanagement-Ebene liegt jetzt als Overlay, über der WAN-Verbindung und ermöglicht die Priorisierung von Anwendungen und Datenpaketen sowie die Abstraktion der Unternehmensrichtlinien und eine zentralisierte Netzwerksteuerung und Überwachung. Mithilfe einer zentralen Management-Konsole können nun IT-Verantwortliche bestimmte Anwendungen und Datenströme nach Wichtigkeit priorisieren und über spezifische WAN-Verbindungen leiten. Das bedeutet, dass geschäftskritische und sicherheitsrelevante Daten und Anwendungen beispielsweise über sichere MPLS-Verbindungen verschickt werden und weniger kritische Daten über die Internetverbindungen wie Breitband, 3G/4G/LTE, Glasfaser).So kann der Datenverkehr dynamisch auf unterschiedliche Netzwerke und Verbindungen verlagert und dadurch die Bandbreite optimiert werden. Bei Ausfall einer Verbindung kann der Traffic auf andere Pfade umgeleitet werden. Dadurch kann bei einem Failover schnell reagiert und eine hohe Ausfallsicherheit erzielt werden. Darüber hinaus ermöglicht die Network Function Virtualization das WAN automatisiert anzupassen. Das heißt Netzfunktionen wie beispielsweise ein Multi-VPN, ein Internet-Breakout, oder eine Firewall können fast per Knopfdruck an bereitgestellt werden.Sie sehen, die SD-WAN Technologie erfüllt die Anforderungen, die Cloud-Services, SaaS, Big Data und IoT-Anwendungen heute an ein Netzwerk stellen. Es ergänzt und ersetzt herkömmliche WAN-Router und unterstützt Transporttechnologien wie MPLS, Internet und LTE. Durch die zentrale Netzwerksteuerung kann der Traffic in Echtzeit gesteuert werden. Es können flexible Strukturen aufgebaut, der WAN-Traffic und die Verbindungen können in Bezug auf die Kosten, Auslastung und Datensicherheit optimiert werden. Zudem kann Überlast verhindert und Verzögerungen und Paketverluste minimiert werden.Wie kann ein multinationales Unternehmen SD-WAN in seinem Netz einführen? Im Prinzip führen drei Wege zum Software-defined WAN: Ehe wir zum Schluss kommen, möchte Ich mich noch kurz einer Frage widmen: Außerdem baut SD-WAN eine einheitliche Konnektivität über jeden Transportweg auf, indem es private und öffentliche Verbindungen, Festnetze, optische Netze, das Internet und Mobilfunknetze abstrahiert, wodurch vorhandene WAN-Verbindungen beibehalten und als Tunnel genutzt werden können, um die Bandbreite zu optimieren und die effektivste Route zu bestimmen. Wie bereits geschildert, setzt ein SD-WAN auf einem bestehenden Netzwerk auf und überlagert es (Overlay). Die vorhandene WAN-Infrastruktur wird durch eine komplett neue SD-WAN-Infrastruktur ersetzt, beispielsweise durch SD-WAN Boxen. oder SD-WAN wird als Service von einem WAN-Provider oder Internet Service Provider (ISP) bezogen. Jeder Ansatz bietet seine Vorteile und Nachteile. Zusammenfassend kann ich sagen: Mit der SD-WAN-Technologie profitieren Sie durch eine Höhere Flexibilität: Da durch das intelligente Routing und hybrides Netzdesign, kritische Daten über das private MPLS, weniger kritische Daten über das öffentliche Internet geleitet werden. Außerdem können Sie mit Hilfe des Web-Portals Anpassungen wie z. B. Bandbreitenbedarf, Priorisierungen, Ports etc. kurzfristig selbst vornehmen werden. Geringere Kosten: Da Bandbreitenintensive und gleichzeitig weniger kritische Anwendungen und Daten auf das preiswertere öffentliche Internet ausgelagert (Traffic Offloading) werden. Außerdem können Sie den Bandbreitenbedarf im Bedarfsfall kurzfristig selber erhöhen und senken. Dass heißt dass die höheren Kosten für mehr Bandbreite lediglich im tatsächlich benötigten Zeitraum entstehen und nicht darüber hinaus.
In this episode of Scaling Postgres, we review articles covering how to identify slow queries, the pg_auto_failover utility, working with roles and Hyperscale. Subscribe at https://www.scalingpostgres.com to get notified of new episodes. Links for this episode: https://dev.to/pythonmeister/how-to-identify-slow-queries-in-postgresql-4igk https://cloudblogs.microsoft.com/opensource/2019/05/06/introducing-pg_auto_failover-postgresql-open-source-extension-automated-failover-high-availability/ https://www.cybertec-postgresql.com/en/postgresql-using-create-user-with-caution/ https://fluca1978.github.io/2019/05/09/PostgreSQL_Roles.html https://www.citusdata.com/blog/2019/05/06/introducing-hyperscale-citus-on-azure-database-for-postgres/ https://www.youtube.com/watch?v=hEbK05xmUcc https://www.youtube.com/watch?v=-cbT64D9KFk https://www.cybertec-postgresql.com/en/optimizer-support-functions/ https://www.percona.com/blog/2019/05/10/pgbackrest-a-great-backup-solution-and-a-wonderful-year-of-growth/
Gwen is joined in studio by special guest Matthias J. Sax, a software engineer at Confluent. He’ll talk to us about Kafka consumers and Kafka Streams failover. In "Ask Confluent," Gwen Shapira (Data Architect, Confluent) and guests respond to a handful of questions and comments from Twitter, YouTube and elsewhere.
This week on the podcast, Kyle discusses a workflow message tester, and the thought process behind setting up IB failover. Dan explains what the ampersand at the end of URL means for PIA URLs. Show Notes PT Workflow Message Tester @ 2:15 IB Master-Slave Setup @ 6:15 David Heinemeier Hansson on Technology Terms Case-sensitivity matters - but only sometimes @ 17:00 Ampersands, URLs, and the Signon Page @ 22:30 Beta Custom Properties @ 28:45
Our DHCP failover system is up and running. It's pretty cool seeing this in action. We talk about what we did and how we got it to work. We also talk about how this applies to security. Using the CIA triad and a risk assessment, you quickly realize that DHCP availability is important. While you may not need DHCP failover, it is something to think about. Our ISC DHCP Failover Configuration.dhcpd.conf - Primaryauthoritative;ddns-update-style none;option domain-name "section9.lan"; option broadcast-address 10.100.5.255;default-lease-time 600; max-lease-time 7200;log-facility local7;failover peer "dhcp-failover" { primary; address 10.100.5.7; port 519; peer address 10.100.5.8; peer port 520; max-response-delay 60; max-unacked-updates 10; load balance max seconds 3; mclt 3600; split 128; }subnet 10.100.5.0 netmask 255.255.255.0 { option domain-name-servers 10.100.6.2; option routers 10.100.5.1; pool { failover peer "dhcp-failover"; range 10.100.5.100 10.100.5.200;} }omapi-port 7911; omapi-key omapi_key;key omapi_key { algorithm hmac-md5; secret 9WDRJ8EvOkFeOF91UmxIbPd8AAXcIg==; }dhcpd.conf - Secondaryauthoritative;ddns-update-style none;option domain-name "section9.lan"; option broadcast-address 10.100.5.255;default-lease-time 600; max-lease-time 7200;log-facility local7;failover peer "dhcp-failover" { secondary; address 10.100.5.8; port 520; peer address 10.100.5.7; peer port 519; max-response-delay 60; max-unacked-updates 10; load balance max seconds 3;}subnet 10.100.5.0 netmask 255.255.255.0 { option domain-name-servers 10.100.6.2; option routers 10.100.5.1; pool { failover peer "dhcp-failover"; range 10.100.5.100 10.100.5.200;} }omapi-port 7911; omapi-key omapi_key;key omapi_key { algorithm hmac-md5; secret 9WDRJ8EvOkFeOF91UmxIbPd8AAXcIg==; }
In this episode Dorothy and I try to understand the ISC DHCP server fail over configuration. There are two servers, primary and secondary. The servers work in a load balancing configuration by splitting the subnet in half. We understand that part. The rest is a confusing mix that we're not sure we get at all. Talking about the options helps. A DHCP failover setup requires accurate time. That's where NTP comes in. While we haven't configured our DHCP failover setup yet, we did manage to install NTP. It's a small step in the right direction.LINKSISC DHCP failover example: https://kb.isc.org/article/AA-00502/0/A-Basic-Guide-to-Configuring-DHCP-Failover.htmldhcpd.conf man page: https://linux.die.net/man/5/dhcpd.confNTP Server on Ubuntu 16.04: https://www.digitalocean.com/community/tutorials/how-to-set-up-time-synchronization-on-ubuntu-16-04
TrueOS becoming a downstream fork with Trident, our BSDCan 2018 recap, HardenedBSD Foundation founding efforts, VPN with OpenIKED on OpenBSD, FreeBSD on a System76 Galago Pro, and hardware accelerated crypto on Octeons. ##Headlines## TrueOS to Focus on Core Operating System The TrueOS Project has some big plans in the works, and we want to take a minute and share them with you. Many have come to know TrueOS as the “graphical FreeBSD” that makes things easy for newcomers to the BSDs. Today we’re announcing that TrueOS is shifting our focus a bit to become a cutting-edge operating system that keeps all of the stability that you know and love from ZFS (OpenZFS) and FreeBSD, and adds additional features to create a fresh, innovative operating system. Our goal is to create a core-centric operating system that is modular, functional, and perfect for do-it-yourselfers and advanced users alike. TrueOS will become a downstream fork that will build on FreeBSD by integrating new software technologies like OpenRC and LibreSSL. Work has already begun which allows TrueOS to be used as a base platform for other projects, including JSON-based manifests, integrated Poudriere / pkg tools and much more. We’re planning on a six month release cycle to keep development moving and fresh, allowing us to bring you hot new features to ZFS, bhyve and related tools in a timely manner. This makes TrueOS the perfect fit to serve as the basis for building other distributions. Some of you are probably asking yourselves “But what if I want to have a graphical desktop?” Don’t worry! We’re making sure that everyone who knows and loves the legacy desktop version of TrueOS will be able to continue using a FreeBSD-based, graphical operating system in the future. For instance, if you want to add KDE, just use sudo pkg install kde and voila! You have your new shiny desktop. Easy right? This allows us to get back to our roots of being a desktop agnostic operating system. If you want to add a new desktop environment, you get to pick the one that best suits your use. We know that some of you will still be looking for an out-of-the-box solution similar to legacy PC-BSD and TrueOS. We’re happy to announce that Project Trident will take over graphical FreeBSD development going forward. Not much is going to change in that regard other than a new name! You’ll still have Lumina Desktop as a lightweight and feature-rich desktop environment and tons of utilities from the legacy TrueOS toolchain like sysadm and AppCafe. There will be migration paths available for those that would like to move to other FreeBSD-based distributions like Project Trident or GhostBSD. We look forward to this new chapter for TrueOS and hope you will give the new edition a spin! Tell us what you think about the new changes by leaving us a comment. Don’t forget you can ask us questions on our Twitter and be a part of our community by joining the new TrueOS Forums when they go live in about a week. Thanks for being a loyal fan of TrueOS. ###Project Trident FAQ Q: Why did you pick the name “Project Trident”? A: We were looking for a name that was unique, yet would still relate to the BSD community. Since Beastie (the FreeBSD mascot) is always pictured with a trident, it felt like that would be a great name. Q: Where can users go for technical support? A: At the moment, Project Trident will continue sharing the TrueOS community forums and Telegram channels. We are currently evaluating dedicated options for support channels in the future. Q: Can I help contribute to the project? A: We are always looking for developers who want to join the project. If you’re not a developer you can still help, as a community project we will be more reliant on contributions from the community in the form of how-to guides and other user-centric documentation and support systems. Q: How is the project supported financially? A: Project Trident is sponsored by the community, from both individuals and corporations. iXsystems has stepped up as the first enterprise-level sponsor of the project, and has been instrumental in getting Project Trident up and running. Please visit the Sponsors page to see all the current sponsors. Q: How can I help support the project financially? A: Several methods exist, from one time or recurring donations via Paypal to limited time swag t-shirt campaigns during the year. We are also looking into more alternative methods of support, so please visit the Sponsors page to see all the current methods of sponsorship. Q: Will there be any transparency of the financial donations and expenditures? A: Yes, we will be totally open with how much money comes into the project and what it is spent on. Due to concerns of privacy, we will not identify individuals and their donation amounts unless they specifically request to be identified. We will release a monthly overview in/out ledger, so that community members can see where their money is going. Relationship with TrueOS Project Trident does have very close ties to the TrueOS project, since most of the original Project Trident developers were once part of the TrueOS project before it became a distribution platform. For users of the TrueOS desktop, we have some additional questions and answers below. Q: Do we need to be at a certain TrueOS install level/release to upgrade? A: As long as you have a TrueOS system which has been updated to at least the 18.03 release you should be able to just perform a system update to be automatically upgraded to Project Trident. Q: Which members moved from TrueOS to Project Trident? A: Project Trident is being led by prior members of the TrueOS desktop team. Ken and JT (development), Tim (documentation) and Rod (Community/Support). Since Project Trident is a community-first project, we look forward to working with new members of the team. iXsystems ###BSDCan BSDCan finished Saturday last week It started with the GoatBoF on Tuesday at the Royal Oak Pub, where people had a chance to meet and greet. Benedict could not attend due to an all-day FreeBSD Foundation meeting and and even FreeBSD Journal Editorial Board meeting. The FreeBSD devsummit was held the next two days in parallel to the tutorials. Gordon Tetlow, who organized the devsummit, opened the devsummit. Deb Goodkin from the FreeBSD Foundation gave the first talk with a Foundation update, highlighting current and future efforts. Li-Wen Hsu is now employed by the Foundation to assist in QA work (Jenkins, CI/CD) and Gordon Tetlow has a part-time contract to help secteam as their secretary. Next, the FreeBSD core team (among them Allan and Benedict) gave a talk about what has happened this last term. With a core election currently running, some of these items will carry over to the next core team, but there were also some finished ones like the FCP process and FreeBSD members initiative. People in the audience asked questions on various topics of interest. After the coffee break, the release engineering team gave a talk about their efforts in terms of making releases happen in time and good quality. Benedict had to give his Ansible tutorial in the afternoon, which had roughly 15 people attending. Most of them beginners, we could get some good discussions going and I also learned a few new tricks. The overall feedback was positive and one even asked what I’m going to teach next year. The second day of the FreeBSD devsummit began with Gordon Tetlow giving an insight into the FreeBSD Security team (aka secteam). He gave a overview of secteam members and responsibilities, explaining the process based on a long past advisory. Developers were encouraged to help out secteam. NDAs and proper disclosure of vulnerabilities were also discussed, and the audience had some feedback and questions. When the coffee break was over, the FreeBSD 12.0 planning session happened. A Google doc served as a collaborative way of gathering features and things left to do. People signed up for it or were volunteered. Some features won’t make it into 12.0 as they are not 100% ready for prime time and need a few more rounds of testing and bugfixing. Still, 12.0 will have some compelling features. A 360° group picture was taken after lunch, and then people split up into the working groups for the afternoon or started hacking in the UofO Henderson residence. Benedict and Allan both attended the OpenZFS working group, lead by Matt Ahrens. He presented the completed and outstanding work in FreeBSD, without spoiling too much of the ZFS presentations of various people that happened later at the conference. Benedict joined the boot code session a bit late (hallway track is the reason) when most things seem to have already been discussed. BSDCan 2018 — Ottawa (In Pictures) iXsystems Photos from BSDCan 2018 ##News Roundup June HardenedBSD Foundation Update We at HardenedBSD are working towards starting up a 501©(3) not-for-profit organization in the USA. Setting up this organization will allow future donations to be tax deductible. We’ve made progress and would like to share with you the current state of affairs. We have identified, sent invitations out, and received acceptance letters from six people who will serve on the HardenedBSD Foundation Board of Directors. You can find their bios below. In the latter half of June 2018 or the beginning half of July 2018, we will meet for the first time as a board and formally begin the process of creating the documentation needed to submit to the local, state, and federal tax services. Here’s a brief introduction to those who will serve on the board: W. Dean Freeman (Advisor): Dean has ten years of professional experience with deploying and security Unix and networking systems, including assessing systems security for government certification and assessing the efficacy of security products. He was introduced to Unix via FreeBSD 2.2.8 on an ISP shell account as a teenager. Formerly, he was the Snort port maintainer for FreeBSD while working in the Sourcefire VRT, and has contributed entropy-related patches to the FreeBSD and HardenedBSD projects – a topic on which he presented at vBSDCon 2017. Ben La Monica (Advisor): Ben is a Senior Technology Manager of Software Engineering at Morningstar, Inc and has been developing software for over 15 years in a variety of languages. He advocates open source software and enjoys tinkering with electronics and home automation. George Saylor (Advisor): George is a Technical Directory at G2, Inc. Mr. Saylor has over 28 years of information systems and security experience in a broad range of disciplines. His core focus areas are automation and standards in the event correlation space as well as penetration and exploitation of computer systems. Mr Saylor was also a co-founder of the OpenSCAP project. Virginia Suydan (Accountant and general administrator): Accountant and general administrator for the HardenedBSD Foundation. She has worked with Shawn Webb for tax and accounting purposes for over six years. Shawn Webb (Director): Co-founder of HardenedBSD and all-around infosec wonk. He has worked and played in the infosec industry, doing both offensive and defensive research, for around fifteen years. He loves open source technologies and likes to frustrate the bad guys. Ben Welch (Advisor): Ben is currently a Security Engineer at G2, Inc. He graduated from Pennsylvania College of Technology with a Bachelors in Information Assurance and Security. Ben likes long walks, beaches, candlelight dinners, and attending various conferences like BSides and ShmooCon. ###Your own VPN with OpenIKED & OpenBSD Remote connectivity to your home network is something I think a lot of people find desirable. Over the years, I’ve just established an SSH tunnel and use it as a SOCKS proxy, sending my traffic through that. It’s a nice solution for a “poor man’s VPN”, but it can be a bit clunky, and it’s not great having to expose SSH to the world, even if you make sure to lock everything down I set out the other day to finally do it properly. I’d come across this great post by Gordon Turner: OpenBSD 6.2 VPN Endpoint for iOS and macOS Whilst it was exactly what I was looking for, it outlined how to set up an L2TP VPN. Really, I wanted IKEv2 for performance and security reasons (I won’t elaborate on this here, if you’re curious about the differences, there’s a lot of content out on the web explaining this). The client systems I’d be using have native support for IKEv2 (iOS, macOS, other BSD systems). But, I couldn’t find any tutorials in the same vein. So, let’s get stuck in! A quick note ✍️ This guide will walk through the set up of an IKEv2 VPN using OpenIKED on OpenBSD. It will detail a “road warrior” configuration, and use a PSK (pre-shared-key) for authentication. I’m sure it can be easily adapted to work on any other platforms that OpenIKED is available on, but keep in mind my steps are specifically for OpenBSD. Server Configuration As with all my home infrastructure, I crafted this set-up declaratively. So, I had the deployment of the VM setup in Terraform (deployed on my private Triton cluster), and wrote the configuration in Ansible, then tied them together using radekg/terraform-provisioner-ansible. One of the reasons I love Ansible is that its syntax is very simplistic, yet expressive. As such, I feel it fits very well into explaining these steps with snippets of the playbook I wrote. I’ll link the full playbook a bit further down for those interested. See the full article for the information on: sysctl parameters The naughty list (optional) Configure the VPN network interface Configure the firewall Configure the iked service Gateway configuration Client configuration Troubleshooting DigitalOcean ###FreeBSD on a System76 Galago Pro Hey all, It’s been a while since I last posted but I thought I would hammer something out here. My most recent purchase was a System76 Galago Pro. I thought, afer playing with POP! OS a bit, is there any reason I couldn’t get BSD on this thing. Turns out the answer is no, no there isnt and it works pretty decently. To get some accounting stuff out of the way I tested this all on FreeBSD Head and 11.1, and all of it is valid as of May 10, 2018. Head is a fast moving target so some of this is only bound to improve. The hardware Intel Core i5 Gen 8 UHD Graphics 620 16 GB DDR4 Ram RTL8411B PCI Express Card Reader RTL8111 Gigabit ethernet controller Intel HD Audio Samsung SSD 960 PRO 512GB NVMe The caveats There are a few things that I cant seem to make work straight out of the box, and that is the SD Card reader, the backlight, and the audio is a bit finicky. Also the trackpad doesn’t respond to two finger scrolling. The wiki is mostly up to date, there are a few edits that need to be made still but there is a bug where I cant register an account yet so I haven’t made all the changes. Processor It works like any other Intel processor. Pstates and throttling work. Graphics The boot menu sets itself to what looks like 1024x768, but works as you expect in a tiny window. The text console does the full 3200x1800 resolution, but the text is ultra tiny. There isnt a font for the console that covers hidpi screens yet. As for X Windows it requres the drm-kmod-next package. Once installed follow the directions from the package and it works with almost no fuss. I have it running on X with full intel acceleration, but it is running at it’s full 3200x1800 resolution, to scale that down just do xrandr --output eDP-1 --scale 0.5x0.5 it will blow it up to roughly 200%. Due to limitations with X windows and hidpi it is harder to get more granular. Intel Wireless 8265 The wireless uses the iwm module, as of right now it does not seem to automagically load right now. Adding iwm_load=“YES” will cause the module to load on boot and kldload iwm Battery I seem to be getting about 5 hours out of the battery, but everything reports out of the box as expected. I could get more by throttling the CPU down speed wise. Overall impression It is a pretty decent experience. While not as polished as a Thinkpad there is a lot of potential with a bit of work and polishing. The laptop itself is not bad, the keyboard is responsive. The build quality is pretty solid. My only real complaint is the trackpad is stiff to click and sort of tiny. They seem to be a bit indifferent to non linux OSes running on the gear but that isnt anything new. I wont have any problems using it and is enough that when I work through this laptop, but I’m not sure at this stage if my next machine will be a System76 laptop, but they have impressed me enough to put them in the running when I go to look for my next portable machine but it hasn’t yet replaced the hole left in my heart by lenovo messing with the thinkpad. ###Hardware accelerated AES/HMAC-SHA on octeons In this commit, visa@ submitted code (disabled for now) to use built-in acceleration on octeon CPUs, much like AESNI for x86s. I decided to test tcpbench(1) and IPsec, before and after updating and enabling the octcrypto(4) driver. I didn't capture detailed perf stats from before the update, I had heard someone say that Edgerouter Lite boxes would only do some 6MBit/s over ipsec, so I set up a really simple ipsec.conf with ike esp from A to B leading to a policy of esp tunnel from A to B spi 0xdeadbeef auth hmac-sha2-256 enc aes going from one ERL to another (I collect octeons, so I have a bunch to test with) and let tcpbench run for a while on it. My numbers hovered around 7Mbit/s, which coincided with what I've heard, and also that most of the CPU gets used while doing it. Then I edited /sys/arch/octeon/conf/GENERIC, removed the # from octcrypto0 at mainbus0 and recompiled. Booted into the new kernel and got a octcrypto0 line in dmesg, and it was time to rock the ipsec tunnel again. The crypto algorithm and HMAC used by default on ipsec coincides nicely with the list of accelerated functions provided by the driver. Before we get to tunnel traffic numbers, just one quick look at what systat pigs says while the ipsec is running at full steam: PID USER NAME CPU 20 40 60 80 100 58917 root crypto 52.25 ################# 42636 root softnet 42.48 ############## (idle) 29.74 ######### 1059 root tcpbench 24.22 ####### 67777 root crynlk 19.58 ###### So this indicates that the load from doing ipsec and generating the traffic is somewhat nicely evened out over the two cores in the Edgerouter, and there's even some CPU left unused, which means I can actually ssh into it and have it usable. I have had it running for almost 2 days now, moving some 2.1TB over the tunnel. Now for the new and improved performance numbers: 204452123 4740752 37.402 100.00% Conn: 1 Mbps: 37.402 Peak Mbps: 58.870 Avg Mbps: 37.402 204453149 4692968 36.628 100.00% Conn: 1 Mbps: 36.628 Peak Mbps: 58.870 Avg Mbps: 36.628 204454167 5405552 42.480 100.00% Conn: 1 Mbps: 42.480 Peak Mbps: 58.870 Avg Mbps: 42.480 204455188 5202496 40.804 100.00% Conn: 1 Mbps: 40.804 Peak Mbps: 58.870 Avg Mbps: 40.804 204456194 5062208 40.256 100.00% Conn: 1 Mbps: 40.256 Peak Mbps: 58.870 Avg Mbps: 40.256 The tcpbench numbers fluctuate up and down a bit, but the output is nice enough to actually keep tabs on the peak values. Peaking to 58.8MBit/s! Of course, as you can see, the average is lower but nice anyhow. A manyfold increase in performance, which is good enough in itself, but also moves the throughput from a speed that would make a poor but cheap gateway to something actually useful and decent for many home network speeds. Biggest problem after this gets enabled will be that my options to buy cheap used ERLs diminish. ##Beastie Bits Using FreeBSD Text Dumps llvm’s lld now the default linker for amd64 on FreeBSD Author Discoverability Pledge and Unveil in OpenBSD {pdf} EuroBSDCon 2018 CFP Closes June 17, hurry up and get your submissions in Just want to attend, but need help getting to the conference? Applications for the Paul Schenkeveld travel grant accepted until June 15th Tarsnap ##Feedback/Questions Casey - ZFS on Digital Ocean Jürgen - A Question Kevin - Failover best practice Dennis - SQL Send questions, comments, show ideas/topics, or stories you want mentioned on the show to feedback@bsdnow.tv
Show Synopsis: In the 82nd episode, we discuss Retina Scanners, Pihole failover, and time. Working from home. What we are Drinking: Rogue Hazelnut Brown Nectar and Sierra Nevada Sidecar Orange Pale Ale Retina Scans to detect health problems Pihole has to way to do failover or load balancing New unit of time called the "Flick" created to help with VR framerate timing. Patreon We have a twitter @BeerandBroad Get 25 dollars in credit at Ting. This Episode of Beer and Broadband is licensed under the Creative Commons Attribution License Creative Commons License
This week on the podcast, Dan has follow-up on using Hiera with Puppet environments, capturing WebLogic logs in Elasticsearch, and Kyle shares his thoughts on the Solaris "change". Then Kyle discusses the in depth failover testing and how Unified Navigation behaves when app servers fail. Show Notes Solaris is "not quite dead yet" @ 2:00 How Oracle manages acquired technologies @ 11:00 Fluid Training with Jim Marion @ 18:00 New Oracle Version Numbers @ 20:00 Failover Testing @ 29:00 How Unified Navigation Behaves when IB is down @ 38:00 Hiera command line Follow-up @ 51:00 Logstash and WebLogic logs @ 53:00 Managing Synchronous Messages? @ 56:30
This week on the podcast, Dan and Kyle launch a new course about Deployment Packages. Dan tests out a new text editor and discovers you can run OPatch on MOS. Kyle digs into Jolt Failover options with the IB and brainstorms some great configuration ideas. Show Notes Mastering PeopleSoft Administration: Deployment Packages @ 1:30 Enhancing and Extending the DPK Talk Dynamic Config Puppet Manifest @ 6:30 Shift-Backspace and App Designer @ 10:15 Atom.io @ 11:30 How SQL Server runs Linux @ 15:30 WebLogic 12c REST Services @ 12:30 Oracle REST Database Services QAS Benefits @ 27:30 OPatch on MOS @ 29:45 Oh No! Story: DR Testing @ 32:50 Jolt Failover and the IB @ 43:00 integrationGateway.properties file @ 56:00
In diesem Podcast habe ich im Schwerpunktthema meinen Hyper-V Amigos Freund Didier Van Hoye zu Gast und wir unterhalten uns über die Neuerungen im "Failover Clustering", welche mit Windows Server 2016 hinzugekommen sind. Am Ende habe ich für euch (wie immer) noch die Termine rund um die Private/Hybrid Cloud zusammengefasst.Das Video zum Podcast findet ihr […] Der Beitrag Microsoft Virtualisierung Podcast Folge 53 Failover Clustering erschien zuerst auf Hyper-V Server Blog.
Modernisierte IT-Infrastruktur ermöglicht den automatisierten Failover zwischen beiden SAN-Speichersystemen; damit wurde IT-seitig eine zentrale Vorgabe der Unternehmensführung zum Business Continuity Management erfüllt...
I saw a note from someone that had a database set up in a High Availability (HA) configuration for production. This person had received an 823 error on the primary server, but a failover hadn't occurred. This wasn't a critical error, but one that noted some anomolies in a few pages, which potentially could be fixed by the automatic page repair in SQL Server. In this case, the individual would have liked to have had the system fail over, just in case there were a chance this would impact production. To make this happen, an alert on the error would be needed, which then forced a failover. This wasn't part of the native SQL Server configuration, and this individual was concerned. However, there are certainly cases where a failover might not be warranted when there is some sort of reaction such as Automatic Page Repair. Read the rest of "Failover"
You’re setting up SQL Server log shipping for disaster recovery. What else do you need to do to best prepare for a failure?
München, Starnberg - Hoch-ausfallsichere Rechenzentrums- und Anwendungsumgebung mit Hilfe eines automatisierten Failover zwischen den Fujitsu ETERNUS DX SAN-Speichersystemen; manuelles Hochfahren einzelner Applikationen ist nicht erforderlich...
In this episode Symon interviews Elden Christensen, Principal Program Manager Lead for Failover Clustering, to discuss the latest enhancements in the next version of Windows Server. Failover Clustering provides high-availability and disaster recovery for Hyper-V virtual machines, SQL databases and other roles.The interview with Elden begins at [04:30]:What were the main high-availability design goals for this release?How do rolling upgrades work?What are the new compute resiliency features?How has network resiliency improved?What is a node quarantine?How has storage resiliency improved?How does a DAS cluster work?How does storage replication work?What is the cloud witness?What are the improvements around diagnostics and logging?Where can people go to learn more about the next version of clustering? Windows Server Technical Preview Evaluation: https://www.microsoft.com/en-us/evalcenter/evaluate-windows-server-vnext-technical-previewTechNet Forum: Windows Server Technical Preview Forum: https://social.technet.microsoft.com/Forums/windowsserver/en-US/home?forum=WinServerPreviewFailover Clustering Team Blog: https://blogs.msdn.com/b/clustering/News: [00:25] TechEd Europe sessions are now available on demand through Channel 9: https://channel9.msdn.com/Events/TechEd/Europe/2014[00:55] New courses are available on the Microsoft Virtual Academy Windows Server 2012 R2: Using IP Address Management (IPAM): https://www.microsoftvirtualacademy.com/training-courses/windows-server-2012-r2-using-ip-address-management-ipam-Service Management Automation (SMA) with the Windows Azure Pack: https://www.microsoftvirtualacademy.com/training-courses/service-management-automation-with-windows-azure-pack[01:55] Microsoft Azure releases a new Government Cloud: https://azure.microsoft.com/en-us/features/gov[02:30] Partner News: Parallels releases Windows Azure Pack APS Package enabling service providers to offer Windows Azure services based on their infrastructure by automating billing, provisioning and customer management : http://sp.parallels.com/products/automation/services-and-applications/windows-azure-package[03:35] Partner News: Provance Technologies Inc. releases The Suite for System Center Service Manager, a collection of enhancements which provide you with powerful, extended functionality for total management of SCSM, including a self-service portal, analyst web console, IT asset management, analytics, dashboards, data management, and more: http://www.provance.com/products/the-suite-for-microsoft-system-center-scsm/overview Connect with the Edge Team:Follow @tnedgeFollow @SymonPerrimanFollow @RicksterCDNFollow @dtzarFollow @SimonsterFacebook
In this episode Symon interviews Elden Christensen, Principal Program Manager Lead for Failover Clustering, to discuss the latest enhancements in the next version of Windows Server. Failover Clustering provides high-availability and disaster recovery for Hyper-V virtual machines, SQL databases and other roles.The interview with Elden begins at [04:30]:What were the main high-availability design goals for this release?How do rolling upgrades work?What are the new compute resiliency features?How has network resiliency improved?What is a node quarantine?How has storage resiliency improved?How does a DAS cluster work?How does storage replication work?What is the cloud witness?What are the improvements around diagnostics and logging?Where can people go to learn more about the next version of clustering? Windows Server Technical Preview Evaluation: https://www.microsoft.com/en-us/evalcenter/evaluate-windows-server-vnext-technical-previewTechNet Forum: Windows Server Technical Preview Forum: https://social.technet.microsoft.com/Forums/windowsserver/en-US/home?forum=WinServerPreviewFailover Clustering Team Blog: https://blogs.msdn.com/b/clustering/News: [00:25] TechEd Europe sessions are now available on demand through Channel 9: https://channel9.msdn.com/Events/TechEd/Europe/2014[00:55] New courses are available on the Microsoft Virtual Academy Windows Server 2012 R2: Using IP Address Management (IPAM): https://www.microsoftvirtualacademy.com/training-courses/windows-server-2012-r2-using-ip-address-management-ipam-Service Management Automation (SMA) with the Windows Azure Pack: https://www.microsoftvirtualacademy.com/training-courses/service-management-automation-with-windows-azure-pack[01:55] Microsoft Azure releases a new Government Cloud: https://azure.microsoft.com/en-us/features/gov[02:30] Partner News: Parallels releases Windows Azure Pack APS Package enabling service providers to offer Windows Azure services based on their infrastructure by automating billing, provisioning and customer management : http://sp.parallels.com/products/automation/services-and-applications/windows-azure-package[03:35] Partner News: Provance Technologies Inc. releases The Suite for System Center Service Manager, a collection of enhancements which provide you with powerful, extended functionality for total management of SCSM, including a self-service portal, analyst web console, IT asset management, analytics, dashboards, data management, and more: http://www.provance.com/products/the-suite-for-microsoft-system-center-scsm/overview Connect with the Edge Team:Follow @tnedgeFollow @SymonPerrimanFollow @RicksterCDNFollow @dtzarFollow @SimonsterFacebook
Another special solo show, this time with a lot more fresh stuff. :D Also some electro house and some bangin' unique techno by the end.
On this week's episode, we'll be giving you an introductory guide on OpenBSD's ports and package system. There's also a pretty fly interview with Karl Lehenbauer, about how they use FreeBSD at FlightAware. Lots of interesting news and answers to all your emails, on BSD Now - the place to B.. SD. This episode was brought to you by Headlines BSDCan 2014 talks and reports, part 2 (https://www.bsdcan.org/2014/schedule/) More presentations and trip reports are still being uploaded Ingo Schwarze, New Trends in mandoc (https://www.youtube.com/watch?v=oifYhwTaOuw) Vsevolod Stakhov, The Architecture of the New Solver in pkg (https://www.youtube.com/watch?v=3SOKFz2UUQ4) Julio Merino, The FreeBSD Test Suite (https://www.youtube.com/watch?v=nf-bFeKaZsY) Zbigniew Bodek, Transparent Superpages for FreeBSD on ARM (https://www.youtube.com/watch?v=s5iIKEHtbX8) There's also a trip report from Michael Dexter (http://freebsdfoundation.blogspot.com/2014/06/bsdcan-trip-report-michael-dexter.html) and another (very long and detailed) trip report (http://freebsdfoundation.blogspot.com/2014/05/bsdcan-trip-report-warren-block.html) from our friend Warren Block (http://www.bsdnow.tv/episodes/2014_03_26-documentation_is_king) that even gives us some linkage, thanks! *** Beyond security, getting to know OpenBSD's real purpose (https://www.youtube.com/watch?v=JrFfrrY-yOo) Michael W Lucas (http://www.bsdnow.tv/episodes/2013_11_06-year_of_the_bsd_desktop) (who, we learn through this video, has been using BSD since 1986) gave a "webcast" last week, and the audio and slides are finally up It clocks in at just over 30 minutes, managing to touch on a lot of OpenBSD topics Some of those topics include: what is OpenBSD and why you should care, the philosophy of the project, how it serves as a "pressure cooker for ideas," briefly touches on GPL vs BSDL, their "do it right or don't do it at all" attitude, their stance on NDAs and blobs, recent LibreSSL development, some of the security functions that OpenBSD enabled before anyone else (and the ripple effect that had) and, of course, their disturbing preference for comic sans Here's a direct link to the slides (https://wcc.on24.com/event/76/67/12/rt/1/documents/resourceList1400781110933/20140527_beyond_security_openbsd.pdf) Great presentation if you'd like to learn a bit about OpenBSD, but also contains a bit of information that long-time users might not know too *** FreeBSD vs Linux, a comprehensive comparison (http://brioteam.com/linux-versus-freebsd-comprehensive-comparison) Another blog post covering something people seem to be obsessed with - FreeBSD vs Linux This one was worth mentioning because it's very thorough in regards to how things are done behind the scenes, not just the usual technical differences It highlights the concept of a "core team" and their role vs "contributors" and "committers" (similar to a presentation Kirk McKusick did not long ago) While a lot of things will be the same on both platforms, you might still be asking "which one is right for me?" - this article weighs in with some points for both sides and different use cases Pretty well-written and unbiased article that also mentions areas where Linux might be better, so don't hate us for linking it *** Expand FreeNAS with plugins (http://www.openlogic.com/wazi/bid/345617/Expand-FreeNAS-with-plugins) One of the things people love the most about FreeNAS (other than ZFS) is their cool plugin framework With these plugins, you can greatly expand the feature set of your NAS via third party programs This page talks about a few of the more popular ones and how they can be used to improve your NAS or media box experience Some examples include setting up an OwnCloud server, Bacula for backups, Maraschino for managing a home theater PC, Plex Media Server for an easy to use video experience and a few more It then goes into more detail about each of them, how to actually install plugins and then how to set them up *** Interview - Karl Lehenbauer - karl@flightaware.com (mailto:karl@flightaware.com) / @flightaware (https://twitter.com/flightaware) FreeBSD at FlightAware, BSD history, various topics Tutorial Ports and packages in OpenBSD (http://www.bsdnow.tv/tutorials/ports-obsd) News Roundup Code review culture meets FreeBSD (http://julipedia.meroh.net/2014/05/code-review-culture-meets-freebsd.html) In most of the BSDs, changes need to be reviewed by more than one person before being committed to the tree This article describes Phabricator, an open source code review system that we briefly mentioned last week Instructions for using it are on the wiki (https://wiki.freebsd.org/CodeReview) While not approved by the core team yet for anything official, it's in a testing phase and developers are encouraged to try it out and get their patches reviewed Just look at that fancy interface!! (http://phabric.freebsd.org/) *** Upcoming BSD books (http://blather.michaelwlucas.com/archives/2088) Sneaky MWL somehow finds his way into both our headlines and the news roundup He gives us an update on the next BSD books that he's planning to release The plan is to release three (or so) books based on different aspects of FreeBSD's storage system(s) - GEOM, UFS, ZFS, etc. This has the advantage of only requiring you to buy the one(s) you're specifically interested in "When will they be released? When I'm done writing them. How much will they cost? Dunno." It's not Absolute FreeBSD 3rd edition... *** CARP failover and high availability on FreeBSD (https://www.youtube.com/watch?v=VjYb9mKB4jU) If you're running a cluster or a group of servers, you should have some sort of failover in place But the question comes up, "how do you load balance the load balancers!?" This video goes through the process of giving more than one machine the same IP, how to set up CARP, securing it and demonstrates a node dying Also mentions DNS-based load balancing as another option *** PCBSD weekly digest (http://blog.pcbsd.org/2014/05/weekly-feature-digest-30/) This time in PCBSD land, we're getting ready for the 10.0.2 release (ISOs here) (http://download.pcbsd.org/iso/10.0-RELEASE/testing/amd64/) AppCafe got a good number of fixes, and now shows 10 random highlighted applications EasyPBI added a "bulk" mode to create PBIs of an entire FreeBSD port category Lumina, the new desktop environment, is still being worked on and got some bug fixes too *** Feedback/Questions Paul writes in (http://slexy.org/view/s205iiKiWp) Matt writes in (http://slexy.org/view/s2060bkTNl) Kjell writes in (http://slexy.org/view/s2G7eMC6oP) Paul writes in (http://slexy.org/view/s2REfzMFGK) Tom writes in (http://slexy.org/view/s21nvJtXY6) ***
Richard chats with Allan Hirt about the new failover clustering features in SQL Server 2012. SQL Server 2012 has added a number of new features to make clustering more flexible and less wasteful of hardware. Allan talks about how Windows Server 8 will also amp-up the clustering offerings when it ships. The conversation also digs into the controversy around Microsoft deprecating database mirroring in SQL 2012 - it's not the end of the world, the technology won't explode when you upgrade!
Richard continues his exploration a new feature of WCF 4.0 called the routing service and shows how it can be used provide multicast and failover to services without changing the client
The panel of experts discusses the software version terminology and release process for the ASA, PIX and FWSM platforms. The episode then continues with part 2 of troubleshooting firewall failover.
Guest speaker Omar Santos from the Cisco PSIRT team discusses how Cisco handles product security vulnerabilities. Then the panel discusses the failover functionality of the ASA, PIX, and FWSM platforms in part one of our discussion of firewall failover, which spans two episodes. The next episode focuses on troubleshooting failover problems.
High availability is important in any enterprise and for any application in an IT infrastructure. But there are some applications – email for example – that are even more missions critical. With its release of Windows Server 2008, Microsoft has added some features that improve high availability clustering. But for some organizations this is all still a mystery. So Dell has worked for several years in close partnership to simplify the deployment and management of HA clusters. Featured are Kevin Guinn, lead engineer for cluster engineering and Shabana, senior engineer for the high availability clustering solutions team at Dell.
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