[Bug 1316970] [NEW] g_dbus memory leak in lrmd

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Seyeong Kim (xtrusia):

[Impact]
lrmd daemon with upstart resource has memory leak in Trusty

affected to pacemaker 1.1.10.


[Test Case]

1. deploy 3 trusty instance.
2. install corosync, pacemaker, mysql.
3. setting with below info
3.1 corosync.conf ( )
3.2 crm configure < setup.crm ( )
3.3 monitor lrmd daemon's memory usage

[Regression]
Restarting daemon after upgrading this pkg will be needed. this patch added NULL check for several parts. prior commit[2] changed file structure ( e.g attrd created from tools/attrd.c ), This might affect to system. however, both of patches are landed to 1.11, so risk is not that high.

[Others]

Related commits.

[1] commit a1a6922e43dfe80b23887a88401cbb93fe3645c0
Author: David Vossel <dvossel at redhat.com>
Date:   Tue Jan 7 14:02:18 2014 -0600

    Fix: ipc: fix memory leak for failed ipc client connections.
    
    When pacemaker ipc servers accept client connections, client
    state data is allocated when the libqb 'accept' callback function is
    invoked.  It is possible however that even after the client
    accepts the connection in the libqb 'accept' callback, the connection
    could still fail to initialize fully if the client side hangs up.
    
    Currently this results in the client state data never being
    destroyed because the libqb "close" callback for client connection
    is never invoked on the server side. Instead, libqb jumps directly to
    the "destroy" callback because the connection never actually got created.
    
    To account for this memory leak, pacemaker needs to verify client
    state data is destroyed in the destroy callback.
[2] commit a7b61e276120184c7586a3217ed3571a982f5017
Author: Andrew Beekhof <andrew at beekhof.net>
Date:   Fri Aug 23 16:25:35 2013 +1000

    Refactor: attrd: Move to its own directory and create a stub for
attrd-ng


[Original Description]

I'm running Pacemaker 1.1.10+git20130802-1ubuntu1 on Ubuntu Saucy
(13.10) and have encountered a memory leak in lrmd.

The details of the bug are covered here in this thread
(http://oss.clusterlabs.org/pipermail/pacemaker/2014-May/021689.html)
but to summarise, the Pacemaker developers believe the leak is caused by
the g_dbus API, the use of which was removed in Pacemaker 1.11.

I've also attached the Valgrind output from the run that exposed the
issue.

Given that this issue affects production stability (a periodic restart
of Pacemaker is required), will a version of 1.11 be released for
Trusty? (I'm happy to upgrade the OS to Trusty to get it).

If not, can you advise which version of the OS will be the first to take
1.11 please?

** Affects: pacemaker (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: sts
-- 
g_dbus memory leak in lrmd
https://bugs.launchpad.net/bugs/1316970
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