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There was an announcement for 8.0.12rc3 (RELEASE CANDIDATE!) today. You cannot possibly mean that with "stable". |
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My apologies for jumping the gun. You are quite correct. I somehow misread the announcement on 04/08 and thought it was the "final" 8.0.12 release. Thanks for setting me right. |
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OK, the final release of 8.0.12 was announced today. The reason this release is critical is that it contains fixes related to the dopd daemon, without which the high availability provided by the combination of drbd + heartbeat is completely broken. We require this release for our production systems. Thanks. |
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Actually, the Extras version of CentOS has moved to the drbd82-8.2.x series. The current version is drbd82-8.2.5 The 8.0.x series has been upgraded to 8.2.x as recommended by the drbd team, see this message list thread on the DRBD list: http://news.gmane.org/find-root.php?group=gmane.linux.network.drbd&article=14090 |
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The upgrade from 8.0.x to drbd82-8.2.x should be able to be done without any changes to your drbd at all, just install the appropriate kernel module and upgrade drbd to drbd82 |
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We cannot update our production systems to the 8.2 branch. The 8.2 branch is far less stable, as it receives all new feature development. The 8.0 branch receives mostly bug fixes and security fixes. This is the official DRBD version release policy. We run an enterprise OS based on RHEL and we cannot risk destabilizing our deployment with a DRBD branch that is constantly adding new features. Please consider supporting new releases to both branches, or move the 8.2 branch out of Extras to a more experimental repository (CentOSplus?). In my opinion, the 8.2 branch should not be in Extras as it is in active feature development. If the 8.0 branch were irrelevant, then the DRBD folks would not still be maintaining it. |
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So, is 8.0.12 going to be supported? Or do we need to roll our own? As I said, I think it is vital that the more stable 8.0.x branch be supported in Extras, for the reasons stated in my previous note. Also, in the thread you referenced, the DRBD team never recommended replacing 8.0.x with 8.2.x. They simply requested that 8.2.x be added as an option as well. Thanks. |
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Respond please? |
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no ... 8.2.5 is supported and the upgrade from 8.0.x to 8.2.x is automatic. That was the recommendation from the drbd developers, and we are taking their advice. |
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I would like to formally request to appeal this decision. If we wanted to run a bleeding edge OS, we would run Fedora + DRBD 8.2. CentOS is an **enterprise distro** and should not be replacing stable production packages with bleeding edge versions of those packages. Enterprise distros are about backporting fixes and maintaining stability. That is what DRBD 8.0.x is about as well. This change has pulled the rug out from under us and we are now in the unfortunate position of needing to build packages and kernel modules on our own, which completely eliminates the package management advantage that CentOS is supposed to provide. Please see this page for a description of the different DRBD branches: http://www.drbd.org/releases.html This comes from the DRBD developers themselves, and it clearly shows that the 8.0.x branch is the one that is in keeping with an enterprise distro release philosophy. |
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Wouldn't "exclude=drbd82" in /etc/yum.conf suffice? |
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I do have "exclude=drbd82" in my yum.conf. That prevents me from updating to 8.2, which is good. But it doesn't get me further updates to the 8.0 branch (8.0.12 and beyond) if the repository stays stuck at 8.0.11. There are two active DRBD branches, the 8.0.x branch and the 8.2.x branch. It would be nice if both branches were actively maintained in CentOS. |
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Ah, yes. I concur. For an "enterprise"-class system, drbd82 as the only option does not fit. Johnny, please back out 8.2, admit you're wrong, and move on. :-) Seriously, though, from the 8.2.5 ChangeLog: 24 8.2.5 (api:86/proto:86-88) 25 -------- 26 * Fixed a race between online-verify and application writes. 27 It caused drbd to report false positives, and very likely 28 deadlocked immediately afterwards. 29 * When DRBD is build for kernels older than 2.6.16 mutexes are 30 provided by a wrapper include file which is shipped with DRBD. 31 We had a bug in there that caused one of DRBD's threads to 32 lockup after the first connection loss. Fixed. 33 * Merged all changes from 8.0.8 -> 8.0.11 into 8.2 Come on, that is *not* the kind of stuff I should see in a stable package. |
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The Changelog for 8.0.x does not look any better. |
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touché. I'm altogether reconsidering my bias towards this matter. First, my production nodes, though simply configured with no hardware problems, have been solid on drbd82 for several weeks. Also, service drbd status shows 8.0.11 deep down anyway... version: 8.0.11 (api:86/proto:86) Maybe it would help if the Assigned To person could document for us "the recommendation from the drbd developers". |
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ok ... I have decided to maintain BOTH versions of DRBD for centos-5. This is double the work, however it MAY prevent whining in the future. Hopefully people will appreciate the DOUBLE WORK ... if so: http://www.centos.org/donate Thanks, Johnny Hughes |
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This is great news. Thank you! (And I for one will gladly donate to support continued development.) |
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So, with drbd82 installed, drbd is pulled in as a requirement? This looks odd, and a bit scary... [root@stpxen2 ~]# rpm -qa kernel\* \*drbd\* kmod-drbd-xen-8.0.11-1.2.6.18_53.1.13.el5 kernel-xen-2.6.18-53.1.14.el5 kernel-xen-2.6.18-53.1.21.el5 kernel-xen-2.6.18-53.1.13.el5 kmod-drbd-xen-8.0.11-1.2.6.18_53.1.14.el5 drbd82-8.2.5-1.el5.centos kernel-xen-2.6.18-53.1.19.el5 [root@stpxen2 ~]# echo n | yum update Loading "installonlyn" plugin Setting up Update Process Setting up repositories extras 100% |=========================| 1.1 kB 00:00 updates 100% |=========================| 951 B 00:00 base 100% |=========================| 1.1 kB 00:00 addons 100% |=========================| 951 B 00:00 Reading repository metadata in from local files Excluding Packages in global exclude list Finished Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package drbd82.x86_64 0:8.2.6-1.el5.centos set to be updated ---> Package kmod-drbd-xen.x86_64 0:8.0.12-1.2.6.18_53.1.21.el5 set to be installed --> Running transaction check --> Processing Dependency: drbd >= 8.0.12 for package: kmod-drbd-xen --> Restarting Dependency Resolution with new changes. --> Populating transaction set with selected packages. Please wait. ---> Package drbd.x86_64 0:8.0.12-1.el5.centos set to be updated --> Running transaction check Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: kmod-drbd-xen x86_64 8.0.12-1.2.6.18_53.1.21.el5 extras 780 k Updating: drbd82 x86_64 8.2.6-1.el5.centos extras 217 k Installing for dependencies: drbd x86_64 8.0.12-1.el5.centos extras 203 k Transaction Summary ============================================================================= Install 2 Package(s) Update 1 Package(s) Remove 0 Package(s) Total download size: 1.2 M Is this ok [y/N]: Exiting on user Command Complete! [root@stpxen2 ~]# |
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Both versions are built now. |
- Anonymous
