Thank you, On Mon, May 2, 2016 at 4:05 PM, Ken Gaillot <kgail...@redhat.com> wrote:
> On 05/02/2016 03:45 PM, Jan Pokorný wrote: > > Hello Radoslaw, > > > > On 02/05/16 11:47 -0500, Radoslaw Garbacz wrote: > >> When testing pacemaker I encountered a start error, which seems to be > >> related to reported libqb segmentation fault. > >> - cluster started and acquired quorum > >> - some nodes failed to connect to CIB, and lost membership as a result > >> - restart solved the problem > >> > >> Segmentation fault reports libqb library in version 0.17.1, a standard > >> package provided for CentOS.6. > > > > Chances are that you are running into this nasty bug: > > https://bugzilla.redhat.com/show_bug.cgi?id=1114852 > > > >> Please let me know if the problem is known, and if there is a remedy > (e.g. > >> using the latest libqb). > > > > Try libqb >= 0.17.2. > > > > [...] > > > >> Logs from /var/log/messages: > >> > >> Apr 22 15:46:41 (...) pacemakerd[111190]: notice: Additional logging > >> available in /var/log/pacemaker.log > >> Apr 22 15:46:41 (...) pacemakerd[111190]: notice: Configured corosync > to > >> accept connections from group 498: Library error (2) > > > > IIRC, that last line ^ was one of the symptoms. > > Yes, that does look like the culprit. The root cause is libqb being > unable to handle 6-digit PIDs, which we can see in the above logs -- > "[111190]". > > As a workaround, you can lower /proc/sys/kernel/pid_max (aka > kernel.pid_max sysctl variable), if you don't want to install a newer > libqb before CentOS 6.8 is released, which will have the fix. > > _______________________________________________ > Users mailing list: Users@clusterlabs.org > http://clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org > -- Best Regards, Radoslaw Garbacz XtremeData Incorporation
_______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
