[Bug 1595627] Re: Pacemaker fails to start and reports a Library Error

[Eric Desrochers]

A test package that can be found here [ppa:slashd/sf99715] including the
upstream commit [0766a3ca5473a9e126e91022075b4b3798b8d5bc] has been
tested by a user affected by this issue.

Here's the user feedbacks :

"Patched version does seem to fix the issue."

Eric

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https://bugs.launchpad.net/bugs/1595627

Title:
  Pacemaker fails to start and reports a Library Error

Status in libqb package in Ubuntu:
  Fix Released
Status in libqb source package in Trusty:
  In Progress
Status in libqb source package in Wily:
  In Progress

Bug description:
  [SRU JUSTIFICATION]

  [Impact]

  Pacemaker fails to start and reports a Library Error as follow :
  "notice: mcp_read_config: 	Configured corosync to accept connections from group 124: Library error (2)"

  [Test Case]

  - Have a corosync/pacemaker cluster with libqb version <=0.16.0.real-1ubuntu4
  - You need sequentially start/stop Corosync/Pacemaker for some amount of times to trigger the issue (until both PIDs of corosync/pacemaker are >99999 and fd >=10 to trigger this issue)

  [Regression Potential]

  The patch is already in place in Debian & Xenial and late Ubuntu
  release version.

  This patch make the description field larger to satisfy all possible
  pids and file descriptor values.

  [Other Info]

  Upstream Commit:

  0766a3ca Increase the length of description field
  https://github.com/ClusterLabs/libqb/commit/0766a3ca5473a9e126e91022075b4b3798b8d5bc

  Note : The commit has been introduced first in upstream branch :
  v0.17.2

  [Original Description]

  It has been brought to my attention by a user the following :

  Pacemaker fails to start if its PID is greater than 99999, then it
  reports a Library error as follow :

  notice: mcp_read_config: Configured corosync to accept connections
  from group 124: Library error (2)"

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