Thursday Apr 10, 2014

Announcing the availability of Oracle Linux 7 Beta 1

We are pleased to announce the availability of the first beta build for Oracle Linux 7.  The beta is available to download from the Oracle Linux download page on Oracle Technology Network.  The Oracle Linux 7 beta includes the latest beta build of Unbreakable Enterprise Kernel (UEK) Release 3 Update 2, as well the Red Hat Compatible Kernel (RHCK).  We are very interested in your feedback and have setup a new mailing list for users to post their questions and comments.  For more information please review the Oracle Linux 7 Beta Release Notes.

Wednesday Mar 19, 2014

New Oracle Linux System Administration Training Released

The very popular Oracle Linux System Administration course is now even better bringing you more hands-on learning opportunities and on the latest version of Oracle Linux.

This five-day instructor-led course covers a range of skills including installation, using the Unbreakable Enterprise Kernel, configuring Linux services, monitoring, preparing the system for the Oracle Database, and valuable hints and tips for troubleshooting your system. 

You can take this course through the following delivery methods:

  • Live-Virtual Events: Attend a live class from your own desk, no travel required. Choose from a selection of events on the schedule to suit different timezones.
  • In-Class Events: Travel to an education center to attend an event. Below is a selection of the events already on the schedule.

 Location

 Date

 Delivery Language

 Melbourne, Australia

 19 May 2014

English

 Sydney, Australia

 12 May 2014

English

 Zagreb, Croatia

21 July 2014 

Croatia 

Cairo, Egypt 

23 March 2014 

English 

Reading, England 

12 May 2014 

English 

Paris, France 

6 October 2014 

French 

 Athens, Greece

 23 June 2014

 English

 Milan, Italy

 31 March 2014

Italian

 Nairobi, Kenya

 14 April 2014

 English

 Kuala  Lumpur, Malaysia

 21 April 2014

 English

 Petaling Jaya, Malaysia

 21 April 2014

 English

 Lagos, Nigeria

 2 June 2014

 English

 Makati City, Philippines

 21 April 2014

 English

 Warsaw, Poland

 9 June 2014

 Polish

 Bucharest, Romania

 14 April 2014

 Romanian

 Bangkok, Thailand

 26 May 2014

 English

 Tunis, Tunisia

 31 March 2014

 French

 Istanbul, Turkey

 16 June 2014

 Turkish

 Irvine, CA, United States

 12 May 2014

 English

 San Francisco, CA, United States

 9 June 2014

 English

 Atlanta, GA, United States

 16 June 2014

 English

 Chicago, IL, United States

 14 April 2014

 English

 Roseville, MN, United States

 19 May 2014

 English

 Columbus, OH, United States

 14 April 2014 

 English

 Caracas, Venezuela

 24 March 2014

 Spanish

This course is the recommended training for the Oracle Linux 5 & 6 System Administrator Oracle Certified Associate Exam.

To register for a course event, request an additional course event, or learn more about the Oracle Linux curriculum, go to http://oracle.com/education/linux.

Friday Mar 07, 2014

Friday Spotlight: Frequently Asked Questions about Oracle Linux

It is Friday and that means it is time for our Spotlight! 

Our spotlight today is the recently updated Oracle Linux FAQ. This is an excellent document that features some of the questions that everyone asks about Oracle Linux and Oracle Linux support. We cover variety of topics including general definitions, compatibility, support, pricing, indemnification, migration and many more.. 

Here's one of the questions as an example:

Q: What is DTrace for Oracle Linux?

A: DTrace is a comprehensive dynamic tracing framework that was initially developed for the Oracle Solaris operating system, and is now available to Oracle Linux customers. DTrace is designed to give operational insights that allow users to tune and troubleshoot the operating system. DTrace provides Oracle Linux developers with a tool to analyze performance, and increase observability into the systems they own to see how they work. DTrace enables higher quality applications development, reduced downtime, lower cost, and greater utilization of existing resources. It is available to download from ULN for Oracle Linux Support customers. 

Read more in the newly published FAQ.

Have a great weekend!  

Friday Feb 28, 2014

Friday Spotlight: Accelerating MySQL on Oracle Linux with Flash

Happy Friday!

Our spotlight this week is on a brand new white paper that can help you get the most out of MySQL running on Oracle Linux, with the help of Oracle's Sun Flash Accelerator F80 PCIe card. To give you an idea of the Oracle Linux part of this, here is an except from the paper's intro:

"Oracle Linux with Unbreakable Enterprise Kernel (UEK) was chosen for this study for several key reasons including its upstream support for the latest hardware relevant to modern data center operations, and SSD support and performance features such as SSD detect. In addition, MySQL database workloads benefit from the platform’s deep integration with the solution stack, optimizations resulting from industry collaborations and enhancements in the UEK.

Read the white paper "Performance Advantages of Running an Oracle MySQL Replicated Database on Oracle Linux with Oracle’s Sun Flash Accelerator F80 PCIe Card"

We'll see you next week!

-Chris 

Wednesday Feb 12, 2014

Unbreakable Enterprise Kernel Release 3 Quarterly Update 1 is now available

We are pleased to announce the availability of Unbreakable Enterprise Kernel Release 3 Quarterly Update 1 (UEK R3U1) for Oracle Linux 6. This is the first quarterly update release for UEK R3 (Version 3.8.13-26) and includes driver updates as well as a consolidation of fixes for bugs and security issues.

Some notable highlights include:

  • Xen improvements to the block and network frontend and backend architecture
  • Support for the crashkernel=auto kernel parameter to simplify Kdump configuration
  • New feature for enabling static probes in kernel modules with DTrace 
  • Device driver updates (e.g. storage devices, network cards) from key partners, such as:
    • Broadcom
    • Cisco
    • Emulex
    • HP
    • Intel
    • LSI
    • Mellanox
    • Qlogic

For more details, please review the release notes.

The source code is available on our public git repository

Monday Nov 11, 2013

Announcing Spacewalk Support for Oracle Linux Basic and Premier Customers

Over the years, customers migrating to Oracle Linux have asked for options to provide a transitional solution for their existing system management tools (such as Red Hat Satellite Server) while evaluating and planning migrations to Oracle's Enterprise Manager, which is offered at no additional charge with Oracle Linux Support Subscriptions.  Based on this request, we are pleased to announce support for the open-source community project, Spacewalk, which is the basis for both Red Hat Satellite Server and SUSE Manager.  Effective today, customers with Oracle Linux Basic and Premier Support subscriptions have access to a fully supported Spacewalk build which can be setup to easily manage Oracle Linux systems.  

Spacewalk support for Oracle Linux requires Oracle Linux 6, x86_64 for the server and provides support for Oracle Linux 5 and Oracle Linux 6 (x86, x86_64) clients.  This solution requires Oracle Database 11g Release 2 as the  supported database repository for Spacewalk with Oracle Linux.  Customers may use an existing Oracle database license or they may begin by downloading a 30-day trial license from eDelivery.  Customers with Oracle Linux Basic and Premier subscriptions will automatically have access to the channel hosting the supported build.  Please review the release notes for further instructions.

Oracle Enterprise Manager is still the recommended enterprise solution for managing Oracle Linux systems and we want to provide the easiest transition path for our customers.  We are excited to offer this solution to our Oracle Linux customers while they plan and implement their migration to Oracle Enterprise Manager. 

Thursday Oct 24, 2013

The October 2013 Oracle Linux Newsletter is Out!

The October 2013 edition of the Oracle Linux Newsletter is here! This issue is absolutely packed with information. Some highlights:

  • Information on the "Why Choose Oracle Linux for Your Oracle Database 12c Deployments?" webcast coming up on October 30.
  • Now Available: Unbreakable Enterprise Kernel 3
  • Oracle Linux Highlights from Oracle OpenWorld 2013
  • Oracle Linux Now Available on Microsoft Azure
  • Faster Downloads of Oracle Linux Updates

Plus, videos, white papers, customer spotlights, information on training, and much more! You can sign up to get the newsletter in your inbox automatically, or you can read this edition online right now.

-Chris 

Monday Oct 21, 2013

Announcing Unbreakable Enterprise Kernel Release 3 for Oracle Linux

We are excited to announce the general availability of the Unbreakable Enterprise Kernel Release 3 for Oracle Linux 6. The Unbreakable Enterprise Kernel Release 3 (UEK R3) is Oracle's third major supported release of its heavily tested and optimized Linux kernel for Oracle Linux 6 on the x86_64 architecture.

UEK R3 is based on mainline Linux version 3.8.13. Some notable highlights of this release include:

  • Inclusion of DTrace for Linux into the kernel (no longer a separate kernel image). DTrace for Linux now supports probes for user-space statically defined tracing (USDT) in programs that have been modified to include embedded static probe points
  • Production support for Linux containers (LXC) which were previously released as a technology preview
  • Btrfs file system improvements (subvolume-aware quota groups, cross-subvolume reflinks, btrfs send/receive to transfer file system snapshots or incremental differences, file hole punching, hot-replacing of failed disk devices, device statistics)
  • Improved support for Control Groups (cgroups) 
  • TCP fast open (TFO) can speed up the opening of successive TCP connections between two endpoints
  • FUSE file system performance improvements on NUMA systems
  • Support for the Intel Ivy Bridge (IVB) processor family
  • Integration of the OpenFabrics Enterprise Distribution (OFED) 2.0 stack, supporting a wide range of Infinband protocols including updates to Oracle's Reliable Datagram Sockets (RDS)
  • Numerous driver updates in close coordination with our hardware partners
UEK R3 uses the same versioning model as the mainline Linux kernel version. Unlike in UEK R2 (which identifies itself as version "2.6.39", even though it is based on mainline Linux 3.0.x), "uname" returns the actual version number (3.8.13).

For further details on the new features, changes and any known issues, please consult the Release Notes.

The Unbreakable Enterprise Kernel Release 3 and related packages can be installed using the yum package management tool on Oracle Linux 6 Update 4 or newer, both from the Unbreakable Linux Network (ULN) and our public yum server. Please follow the installation instructions in the Release Notes for a detailed description of the steps involved.

The kernel source tree will also available via the git source code revision control system from https://oss.oracle.com/git/?p=linux-uek3-3.8.git

If you would like to discuss your experiences with Oracle Linux and UEK R3, we look forward to your feedback on our public Oracle Linux Forum.

Wednesday Oct 02, 2013

Release Candidate for Unbreakable Enterprise Kernel Release 3 is now available

We are happy to announce the availability of the release candidate for the Unbreakable Enterprise Kernel Release 3 for Oracle Linux 6. The Unbreakable Enterprise Kernel Release 3 (UEK R3) is Oracle's third major release of its heavily tested and optimized operating system kernel for Oracle Linux 6 on the x86_64 architecture. It is based on the mainline Linux version 3.8.13.

The release candidate version is 3.8.13-16 and includes additional improvements and bug fixes in preparation for our final release.  As a recap, the features users can expect in this release include:

  • Inclusion of DTrace for Linux into the kernel (no longer a separate kernel image). DTrace for Linux now now supports probes for user-space statically defined tracing (USDT) in programs that have been modified to include embedded static probe points.
  • Btrfs file system improvements (subvolume-aware quota groups, cross-subvolume reflinks, btrfs send/receive to transfer file system snapshots or incremental differences, file hole punching, hot-replacing of failed disk devices)
  • Improved support for Control Groups (cgroups) and Linux containers (LXC).
  • The ext4 file system can now store the content of a small file inside the inode (inline_data).
  • TCP fast open (TFO) can speed up the opening of successive TCP connections between two endpoints.

The Unbreakable Enterprise Kernel Release 3 can be installed on Oracle Linux 6 Update 4 or newer, running either the Red Hat compatible kernel or a previous version of the Unbreakable Enterprise Kernel. The UEKR3 beta kernel packages and supporting userland utilities can be installed using the yum package management tool from the public-yum server.

For installation instructions and more details on the new features, changes and any known issues, please consult the Release Notes found on our public beta site.

We've created a dedicated public beta test discussion forum — please join us and share your observations and impressions there!

Tuesday Sep 17, 2013

Performance Issues with Transparent Huge Pages (THP)

One key reason customers choose Oracle Linux is the investment Oracle makes in optimizing Linux for demanding workloads.  Part of this work includes extensive testing for I/O intensive workloads, like the Oracle Database. A common test used at Oracle to measure I/O throughput and performance is the Oracle Orion Calibration Tool, which simulates the I/O workloads of an Oracle Database. Recently, the Oracle Linux team discovered a significant lag in I/O performance, which was later traced to a feature in the Linux kernel, Transparent Huge Pages (also known as THP). During these tests, our engineering teams discovered THP introduced a 30% performance degradation in I/O throughput. When Transparent Huge Pages were removed from the kernel, performance values returned to their expected levels.

Our engineers have been working with the community to identify the root cause of this performance problem, which also impacts other projects, such as Hadoop. Oracle’s kernel engineers have traced the performance issues with Transparent Huge Pages to its use of swappable hugepages. Prior to THP, hugepages were not swappable. It appears the overhead generated by this implementation is the root cause of the deterioration seen in performance when the feature is enabled (compiled) in the kernel. Our kernel engineers are working on several changes to the code which they believe will improve performance with THP, but the final resolution will take time to develop, test and release.

Due to the impact this feature has on performance with applications like the Oracle Database and the timing of a final fix, Oracle Linux will disable Transparent Huge Pages in the Unbreakable Enterprise Kernel, beginning with Quarterly Update 5 for the Unbreakable Enterprise Kernel, Release 2 (version 2.6.39-400.209.1). To maintain binary compatibility with the Red Hat distribution, the Red Hat Compatible kernel will be left as is, with Transparent Huge Pages enabled. In addition, the Oracle Database team has released an alert recommending all customers disable THP in all Linux systems running RAC and even those systems running single instances, due to instability. Please note that THP is not used by the Oracle Database, the recommendation is to use huge pages. Additional information for huge pages can be found in your Oracle Database documentation or on My Oracle Support.

Our engineers will continue to work with others in the community on a final resolution to the performance issues seen with Transparent Huge Pages. Once a fix is available, we will re-enable this feature in the Unbreakable Enterprise Kernel.

Unbreakable Enterprise Kernel Release 2 Quarterly Update 5 has been released

We are pleased to announce the availability of the 5th quarterly update update release for the Unbreakable Enterprise Kernel Release 2 (version 2.6.39-400.209.1) for Oracle Linux 5 and Oracle Linux 6.  This release includes driver updates as well as a consolidation of bug fixes and security updates.

 Notable changes include:

  • Xsigo virtual host adapter and network drivers to support Oracle SDN (Software Defined Network), previously known as Xsigo Fabric Accelerator.
  • LSI Fusion-MPT SAS 3.0 driver to support up to 12 Gb/s host controllers.
  • XEN improvements, such as the indirect-descriptor feature, which increases throughput and reduces latency for block I/O.

For additional details, please refer to the release notes.

Binary RPMs can be downloaded and installed using yum from the Unbreakable Linux Network (ULN) as well as Oracle's public-yum server.  The Unbreakable Enterprise Kernel is installed and booted by default on Oracle Linux.  See this article on Oracle Technology Network for details on how to install and update the kernel.

The source code, including the full revision history, is available from Oracle's git repository at https://oss.oracle.com/git/?p=linux-uek-2.6.39.git;a=summary.


        
    

Wednesday Jul 17, 2013

Oracle Continues Linux Leadership with 80% Year over Year Growth for Oracle Linux

Oracle today announced that customers and partners continue to rapidly adopt Oracle Linux to increase the scalability, reliability and performance of their critical applications and systems.

“Epsilon offers a broad array of data-driven, multichannel marketing solutions for many of the biggest brands in the world. Our information systems have been experiencing substantial growth year-over-year, with increased demand for real-time reporting, and high performance transaction processing. To enable customers to interact with a brand in a more dynamic real-time manner, we knew our infrastructure had to be comprehensive, well integrated and scalable. With our Oracle Exadata Database Machines running Oracle Linux, we are achieving transactional processing speeds that were previously not attainable. Oracle’s technologies and world-class support have been instrumental in enabling us to deliver new value-add services and greater efficiency for clients,” said Jeff White, vice president, technology, strategic database services at Epsilon.

Read the full press release for details.


Friday Jun 14, 2013

Unbreakable Enterprise Kernel Release 2 Quarterly Update 4 has been released

We're pleased to announce that the fourth quarterly update release of the Unbreakable Enterprise Kernel Release 2 (Version 2.6.39-400.109) for Oracle Linux 5 and 6 has been published. This release includes driver updates as well as fixes for bugs and security issues.

Some notable highlights include:

  • OpenFabrics Alliance (OFED) 1.5.5 Infiniband stack
  • Btrfs bug fixes and improvements
  • Xen improvements
  • Numerous device driver updates (e.g. storage devices, network cards)

For more details, please consult the release notes.

Binary RPMs can be downloaded and installed using yum from the Unbreakable Linux Network (ULN) as well as our public-yum server. The Unbreakable Enterprise Kernel is installed and booted by default on Oracle Linux. See this article on the Oracle Technology Network for details on how to install and update it.

The source code including the full revision history is available from our git repository at https://oss.oracle.com/git/?p=linux-uek-2.6.39.git;a=summary

Monday Jul 30, 2012

ISV Certification is Accelerating on Oracle Linux

A typical question I receive on a daily basis from Independent Software Vendors (ISVs) is how they can work with Oracle to certify their applications on Oracle Linux.  The quick answer I give them is “Paper Cert it!” That might not explain the whole process, but it is that easy. Let me give some background for those who are unfamiliar with Oracle Linux.

Oracle Linux is binary compatible to Red Hat Enterprise Linux (RHEL). This means your applications will run the same on Oracle Linux as they do on RHEL. That’s because Oracle Linux with the Red Hat compatible kernel is based on RHEL source code. While you can run your full QA on Oracle Linux it generally is not necessary. What I typically hear from an ISV after doing such is “Wow, you guys are right, Oracle Linux is the same as RHEL, we will paper cert from here on out!”  You may not know this, but when it comes to Linux, Oracle only runs Oracle Linux on our infrastructure. We use no RHEL–zero, zip, zilch, nada. Because Oracle is so confident in our binary compatibility to RHEL, Oracle simply “paper certs” or says RHEL is certified for Oracle applications.

If you opt to certify your user space application on Oracle Linux with the Unbreakable Enterprise Kernel then you can deliver your application on the latest cutting edge, high performance kernel allowing ISV customers to ride the speed demon wave. Since the Unbreakable Enterprise Kernel uses the same user space libraries as our Red Hat compatible kernel, userspace applications certified on our compatible kernel are certified on the Unbreakable Enterprise Kernel.

Today I spoke with a large ISV who is certifying on Oracle Linux. In the last six months they’ve seen a huge demand for Oracle Linux requests and within the last few weeks have certified their kernel based application on both the compatible kernel and the Unbreakable Enterprise Kernel. This scenario is being replicated each week by large and small ISVs as demand is driving them to support their customers’ choice of running applications on Oracle Linux.

Oracle Linux has support from leading ISVs including:  SAP, EMC, HP, BMC, CA, Symantec, BeyondTrust, Microstrategy, Sungard, NetApp, Informatica, McAfee and Quest software just to name a few.

So now you want to certify on Oracle Linux, what’s the next step - who do you contact? Hit the comments section below and ask us to contact you, read our documentation, tweet us @ORCL_Linux or use good ole email with your request, and we’ll share with you how easy it is to certify. We make it easy.

Thursday May 24, 2012

May Edition of Oracle Linux Newsletter is Here...

INFORMATION INDEPTH NEWSLETTER
Linux Edition
Oracle Corp
May 2012 Stay Connected: TwitterFacebookLinkedInYoutube Blog
NEWS

The May 2012 edition of Oracle Linux Newsletter is now available. It is full of new content including:

  • Free download Oracle Linux binaries and erratas
  • Certification of Oracle Database 11g R2 with Oracle Linux 6 and RHEL6
  • A really cool 3 minute animated overview of Oracle Linux
  • Oracle Linux is on a record breaking spree!
  • Linux management demo
  • Find out why Progressive Insurance chose Oracle Linux for their database apps.
  • Technical articles
  • Events, and more

Read it here.

Subscribe to it now. 

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