[Bug 1314289] Re: [Precise/regression] drbd 8.4.x backport breaks existing clusters

[Stefan Bader]

** Description changed:

- The backport of drbd8-utils-8.4.3 has several issues when running in
- compat-8.3 mode as part of corosync/pacemaker clusters.
+ SRU Justification:
+ The backport of drbd8-utils-8.4.3 has several issues when running in compat-8.3 mode as part of corosync/pacemaker clusters.
  
- - the OCF resource agent script shipped in the drbd8-utils package is not running the compat binaries for some reason.
+ Impact:
+ - The OCF resource agent fails to run after installing the new toolset
+   - "syncer command not supported" messages
  - the OCF resource agent script uses the new syntax hard coded in one place
  - the drbdsetup command is not using the compat binary for help output and the command line changed significantly.
  - if the main commands are called with the full path, the compat binaries are searched in the same path but only existed in /lib/drbd.
  
  Apart from those serious problems, the init.d script would fail in
  compat mode due to syntax changes.
  
+ Testcases:
+   - With new tools, old kernel module loaded:
+     * "drbdsetup xml net" should output xml help instead of an error
+     * "/sbin/drbdadm --version" does not fail to print the version.
+     * "service drbd stop" should work without errors
+     * "service corosync restart" on a cluster should work without loosing
+       the local mirror.
+  - Moving one side of the cluster to a newer kernel (new kernel module)
+    * "drbdsetup xml net" should now error and need the new format.
+ 
  regression from bug 1185756.

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https://bugs.launchpad.net/bugs/1314289

Title:
  [Precise/regression] drbd 8.4.x backport breaks existing clusters

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