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Oracle ksplice
This document discusses Oracle Linux and K Splice, which allow for rebootless kernel updates. It notes that traditional kernel update approaches require disruptive downtime and delays. K Splice allows updates to be applied without reboots, avoiding these issues. The document provides background on Oracle's long involvement with Linux and investments in it over the past 15 years.
Oracle ksplice
- 1. Oracle Linux andK Splice - Rebootless kernel updates Paul Kangro Principal Sales Consultant Oracle Linux & Virtualisation 1 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 2. The following isintended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle. 2 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 3. What We Hear Brittle Point to Point Maintenance Inflexible N i c h e IT Environment Fragmentation Hard Coded Expensive Status Quo Tuning Heterogeneous First Generation Custom Slow Testing Rigid Proprietary Integration Legacy Application Silos 3 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 4. 63% 21% 16% Run the Grow the Transform the Business Business Business Source: “IT Metrics: IT Spending and Staffing Report, 2012”, Gartner Research, 2012 4 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 5. Patching and yetMore Patching : Traditional Update Approach Disruptive, Downtime and Delays Security Update …And Another 4 …One Week Later Released Hours Later System administrator negotiates with Shut down application server Updates applied and tested management to schedule outage Shut down database Back in business after first windows Apply Linux OS update notification of security update - System administrator schedules typically over one week has passed downtime the following week Start up database System administrator notifies users Start up application server of planned downtime Sanity check application 5 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 5
- 6. System Outages ImpactReputations 6 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 7. A Costly Problem $3.654 Million in Total 7 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 8. Oracle: Nearly 15Years of 2010 Investments in Linux 2007 Validated Configurations Oracle Linux Enhanced with Launched Mainline-based Kernel 1998 Oracle Linux 2005 Undergoes 80,000 QA First Commercial Hours Per Day RDBMS for Linux On Demand Adopts Linux History x64 Linux Exadata Engineered at Oracle OCFS2 Accepted Into with Oracle Linux 2000 Mainline 2008-9 9,000 Developers Btrfs, Xen First x64 Linux Port Switch to Oracle Contributions Supported Linux 42,000 Oracle Linux Cloud Computing Servers Deployed at 2002 2006 Oracle 2012 Launch of Oracle Linux Support Unbreakable Linux Support Lifecycle Announced Extended to 10 Yrs Linux Datacenter Asynch I/O, OCFS v1 Oracle Joins Linux 8,500 Linux support Workloads Foundation as Board Data Warehouse customers Member 2011 7,000 Oracle Linux Support Customers Single Use Production General Purpose Deployments ERP/CRM Oracle Buys Ksplice Development Systems DTrace Porting Begins 1998 2000 2002 2004 2006 2008 2010 2012 8 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 9. Oracle Linux Strategy Deliver the best performing, most modern and reliable Linux operating system for the data center Stay as close to mainline as possible Influence Linux roadmap upstream via direct community involvement Offer differentiated enterprise-class support Full stack tested with real world workloads Lower cost Ensure Oracle Linux customers have full legal protection with complete indemnification 9 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 10. K Splice Rebootless Kernel Patching for Linux 10 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 11. Zero Downtime Updateswith Ksplice • Ksplice lets you install important kernel updates with: • No downtime • No disruption • No rebooting • While applications are running • Only Oracle Linux offers this capability Ksplice Zero Downtime Updates Available to Oracle Linux Premier Support Customers; No additional Cost 11 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 11
- 12. The update process Client Kernel update Ksplice technology Zero downtime kernel update Customer systems 12 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 12
- 13. System Update Process Non Disruptive - patches applied NO reboot Disruptive – kernel patches reboot required Other Linux packages Linux Distribution Kernel in system memory 13 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 13
- 14. Patch Update ULN Repository Local YUM repo Other Linux packages Kernel in system memory After Reboot 14 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 14
- 15. Patch Update ULN Repository Local YUM repo Other Linux packages Kernel in system memory After Reboot Ksplice Repository Local Ksplice repo (no reboot) 15 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 15
- 16. Ksplice Technology Insert jump to Kernel Old New memory Insert jump to 16 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 17. Ksplice Technology Logically becomes Kernel New memory 17 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 18. Ksplice Technology Kernel Old New memory 18 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 19. Installing Ksplice Uptrack • Get access key via ULN • 60-second install process: wget -N https://www.ksplice.com/uptrack/install-uptrack sh install-uptrack YOUR_ACCESS_KEY uptrack-upgrade –y • Done! No initial reboot 19 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 19
- 20. Ksplice Uptrack –offline via Yum • Create a local yum repository – point it to ULN • Subscribe to ksplice channels • Use the uptrack offline client • It uses your local yum repo • No need for each machine to connect to interent Firewall Connect to ULN Ksplice Clients 20 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 20
- 21. Web interface 21 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 22. Installing New Updates 22 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 23. Ksplice for existingOracle Linux Premier Customers Existing Oracle Linux Premier customers can begin applying zero downtime Linux today Customer with an Oracle Linux Premier CSI registered with ULN may request a Ksplice access key ULN web Customer receives access key and uses it interface to install and register the Ksplice Uptrack client Uptrack client Within minutes, Ksplice zero downtime updates can be applied to Unbreakable Customer systems Enterprise Kernel 23 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 24. NEW: Ksplice 30Day Free Trial for RHEL Available to any with RHEL 5 or RHEL 6 user Simple registration One minute installation of Uptrack client 24 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.
- 25. Oracle Linux PremierSupport True Enterprise Support for Linux – Premier backports - fixes for the OS version you run; no forced upgrades – Single number to call for the entire stack – Zero downtime diagnostic and security patches for the Linux kernel via Ksplice* Full Indemnification without Financial Limits Dedicated, Global Linux Support Team – Backed by 28 global support centers, speaking 29 local languages across 145 countries Lower Overall Costs – Integrated management and monitoring tools – Free server lifecycle management and clustering software Included in Oracle Premier Support for Systems on Oracle x86 architecture hardware * there may be rare cases where this is not technically feasible 25 Copyright © 2012, Oracle and/or its affiliates. All rights reserved. 25
- 26. 26 Copyright © 2012, Oracle and/or its affiliates. All rights reserved.