----- "Kadlecsik Jozsef" <kadlec@xxxxxxxxxxxx> wrote: | Yes. Probably it's worth to summarize what's happening here: | | - Full, healthy-looking cluster with all of the five nodes joined | runs smoothly. | - One node freezes out of the blue; it can reliably be triggered | anytime by starting mailman, which works over GFS. | - The freezed node gets fenced off - I assume it's not reversed and | the node freezes *because* it got fenced. Hi, Perhaps you should change your post_fail_delay to some very high number, recreate the problem, and when it freezes force a sysrq-trigger to get call traces for all the processes. Then also you can look at the dmesg to see if there was a kernel panic or something on the node that would otherwise be immediately fenced. Regards, Bob Peterson Red Hat GFS
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