[Pacemaker] corosync [TOTEM ] Process pause detected for 577 ms

[emmanuel segura]

Hello Jan,

I found this problem in two hp blade system and the strange thing is the
fencing was triggered :(


2014-04-25 9:27 GMT+02:00 Jan Friesse <jfriesse at redhat.com>:

> Emanuel,
>
> emmanuel segura napsal(a):
>
>  Hello List,
>>
>> I have this two lines in my cluster logs, somebody can help to know what
>> this means.
>>
>> ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>> ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>> ::::::::::::::
>>
>> corosync [TOTEM ] Process pause detected for 577 ms, flushing membership
>> messages.
>> corosync [TOTEM ] Process pause detected for 538 ms, flushing membership
>> messages.
>>
>
> Corosync internally checks gap between member join messages. If such gap
> is > token/2, it means, that corosync was not scheduled to run by kernel
> for too long, and it should discard membership messages.
>
> Original intend was to detect paused process. If pause is detected, it's
> better to discard old membership messages and initiate new query then
> sending outdated view.
>
> So there are various reasons why this is triggered, but today it's usually
> VM with overloaded host machine.
>
>
>
>  corosync [TOTEM ] A processor failed, forming new configuration.
>>
>> ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>> ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>> ::::::::::::::
>>
>> I know the "corosync [TOTEM ] A processor failed, forming new
>> configuration" message is when the toten package is definitely lost.
>>
>> Thanks
>>
>>
> Regards,
>   Honza
>
>
>>
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