[ClusterLabs] Cluster timeout

[FLORAC Thierry]

Hi,

I manage an active/passive PostgreSQL cluster using DRBD, LVM, Pacemaker and Corosync on a Debian GNU/Linux operating system.
Everything is OK, but my platform seems to be quite "sensitive" to small network timeouts which are generating a cluster migration start from active to passive node; generally, the process doesn't go through to the end: as soon as the connection is back again, the migration is cancelled and the database restarts!
That should be OK but on the application side, some database connections (on a Java WildFly server) can become "invalid"! So I would like to avoid these migrations when this kind of small timeout occurs...

So my question is: which cluster settings can I change to increase the timeout before starting a cluster migration?

Best regards,
Thierry



Thierry Florac
Resp. Pôle Architecture Applicative et Mobile
DSI - Dépt. Études et Solutions Tranverses
2, avenue de Saint-Mandé - 75570 Paris cedex 12
Tél : 01 40 19 59 64
www.onf.fr <https://www.onf.fr>

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