[ClusterLabs] Antw: Re: Antw: Re: Using different folder for /var/lib/pacemaker and usage of /dev/shm files

Ulrich Windl Ulrich.Windl at rz.uni-regensburg.de
Wed May 18 02:22:54 EDT 2016

>>> Ken Gaillot <kgaillot at redhat.com> schrieb am 17.05.2016 um 19:23 in Nachricht
<573B537A.1080807 at redhat.com>:
> On 05/17/2016 12:02 PM, Nikhil Utane wrote:
>> OK. Will do that.
>> Actually I gave the /dev/shm usage when the cluster wasn't up.
>> When it is up, I see it occupies close to 300 MB (it's also the DC).
> Hmmm, there should be no usage if the cluster is stopped. Any memory

Hey man! What are you saying? Has corosync/pacemaker the exclusive right to use POSIX shared memory?
It depends very much on your applications you are using.

> used by the cluster will start with "qb-", so anything else is from
> something else.
> If all executables using libqb (including corosync and pacemaker) are
> stopped, it's safe to remove any /dev/shm/qb-* files that remain. That
> should be rare, probably only after a core dump or such.



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