On Mon, 2018-08-20 at 10:51 +0200, Ulrich Windl wrote: > Hi! > > I wonder whether it's possible to run a monitoring op only if some > specific resource is up. > Background: We have some resource that runs fine without NFS, but the > start, stop and monitor operations will just hang if NFS is down. In > effect the monitor operation will time out, the cluster will try to > recover, calling the stop operation, which in turn will time out, > making things worse (i.e.: causing a node fence). > > So my idea was to pause the monitoing operation while NFS is down > (NFS itself is controlled by the cluster and should recover "rather > soon" TM). > > Is that possible?
It would be a lot better to fix the problem in the RA which causes it to fail when NFS is down, I would think? > And before you ask: No, I have not written that RA that has the > problem; a multi-million-dollar company wrote it (Years before I had > written a monitor for HP-UX' cluster that did not have this problem, > even though the configuration files were read from NFS (It's not > magic: Just periodically copy them to shared memory, and read the > config from shared memory). > > Regards, > Ulrich > > > _______________________________________________ > Users mailing list: Users@clusterlabs.org > https://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 > -- Cheers, Kristoffer _______________________________________________ Users mailing list: Users@clusterlabs.org https://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