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List:       linux-ha
Subject:    [Linux-HA] Re: no local heartbeat problem
From:       "Sebastian Vieira" <sebvieira () gmail ! com>
Date:       2006-10-27 10:18:05
Message-ID: 279239c70610270318v2da897a7kb37a298988a8c382 () mail ! gmail ! com
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Solved by one (or all) of the following things i changed in the kernel:

- changing the I/O scheduler from Anticipatory to Deadline
- changing Preemption Model from Server to Low-Latency Desktop
- disabling Preempt The Big Kernel Lock

Maybe this is useful to someone. Maybe i'm saying something obvious here.


Sebastian.

On 10/26/06, Sebastian Vieira <sebvieira@gmail.com> wrote:
>
> Hi,
>
> I'm getting the 'no local heartbeat' error and i'm kind of stuck there. In
> the howto/faq it's also mentioned that it's due to high load or a kernel
> bug. The problem only occurs if the primary node comes back online, about 2
> minutes later. There's no high load, i'm using kernel 2.6.17.13 in
> combination with ldirectord for LVS. I don't know what to do anymore. I've
> adjusted the *time values to:
>
> keepalive 500ms
> warntime 1
> deadtime 3
> initdead 60
>
> Which is already too high for my liking, but okay. There's not a single
> 'late heartbeat' once both nodes are up. Again, this only occurs once the
> primary node comes back online, and only some time after that.
>
> I have attached a piece of logfile to explain.
>
> Thanks,
>
> Sebastian
>
>
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