[ClusterLabs] Any CLVM/DLM users around?

Patrick Whitney pwhitney at luminoso.com
Mon Oct 1 10:24:55 EDT 2018

Hi Everyone,

I wanted to solicit input on my configuration.

I have a two node (test) cluster running corosync/pacemaker with DLM and

I was running into an issue where when one node failed, the remaining node
would appear to do the right thing, from the pcmk perspective, that is.
 It would  create a new cluster (of one) and fence the other node, but
then, rather surprisingly, DLM would see the other node offline, and it
would go offline itself, abandoning the lockspace.

I changed my DLM settings to "enable_fencing=0", disabling DLM fencing, and
our tests are now working as expected.

I'm a little concern I have masked an issue by doing this, as in all of the
tutorials and docs I've read, there is no mention of having to configure
DLM whatsoever.

Is anyone else running a similar stack and can comment?

Patrick Whitney
DevOps Engineer -- Tools
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