Hi, On Tue, Mar 23, 2010 at 12:42:08PM -0300, Cris <cryptogrid@xxxxxxxxx> wrote: > Does anyone have any recommendation or experience to set Post-Join > Delay and Post-Fail Delay. Default values are 3 and 0, but in the > documentation they mention that these default values might be too > short. Can someone explain why? > > Post-Fail Delay=0, means that the node is fenced immediately after a > fail. Is it ok, or is recommended to wait some seconds to fence a > failed node? post-fail-delay defines the number of seconds to wait until a failed node will be fenced. I usually set this about 20-30 seconds depending on the cluster. So the failed node has the chance to rejoin within 20-30 seconds. If it is not able to rejoint within this time, it will be fenced. post-join-delay ist used during startup, to give all nodes the chance to successfully joint the cluster, before being fenced. I usually set this, to 30 seconds. It can be set to -1, as well which tells fenced to wait forever. You can completely avoid fencing during startup by setting clean_start to 1, as well. Regards, Volker -- Volker Dormeyer Systementwicklung <volker@xxxxxxxxxxxx> Lösungen mit Freier Software (http://www.ixolution.de) Am Helgengraben 23 :: 64331 Weiterstadt :: Telefon 06150-972982-10 -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
