On 19/06/17 06:59 PM, Ferenc Wágner wrote: > Digimer <li...@alteeve.ca> writes: > >> So we have a tool that watches for changes to clvmd by running >> pvscan/vgscan/lvscan, but this seems to be expensive and occassionally >> cause trouble. > > What kind of trouble did you experience? > >> Is there any other way to be notified or to check when something >> changes? > > LV (de)activation generates udev events (due to block devices appearing/ > disappearing). PVs too, but they don't go though clvmd. >
Interesting (dbus), I'll look into that. As to what happens; Total lock up of LVM until a node is fenced out of the cluster. I have an open RHBZ if you are curious; https://bugzilla.redhat.com/show_bug.cgi?id=1452894 -- Digimer Papers and Projects: https://alteeve.com/w/ "I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops." - Stephen Jay Gould _______________________________________________ Users mailing list: Users@clusterlabs.org http://lists.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