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From Peta Bogdan <bog...@gmail.com>
Subject Re: strange crash
Date Fri, 16 Dec 2011 10:53:05 GMT
Thank you Dave,

The fact that there are three parallel inserts on three different tables on
the same server instance could trigger this this behaviour?


On Thu, Dec 15, 2011 at 10:45 PM, Dave Cottlehuber <dave@muse.net.nz> wrote:

> On 15 December 2011 14:16, Peta Bogdan <bog495@gmail.com> wrote:
> > Hello,
> >
> > Today I had a strange experience with my CouchDB/1.1.1 (Erlang
> OTP/R14B04) .
> >
> > After I inserted a normal size document (ten fields) into database, this
> > crashed unexpectedly, and nothing appears in logs (log_level = debug) ,
> > only in coucdb.stderr the following line:
> > heart_beat_kill_pid = 10014
> > heart_beat_timeout = 11
> > heart: Thu Dec 15 14:08:19 2011: heart-beat time-out.
> > Killed
> > heart: Thu Dec 15 14:08:23 2011: Executed
> > "/usr/local/couchdb/1.1.1/bin/couchdb -k". Terminating.
> >
> > I don't know what cause heart-beat mechanism to activate and why it timed
> > out?
> >
> > Any help very much appreciated.
> > Thank you,
> >
> > Bogdan
>
> Hi Bogdan
>
> HB is basically ensuring the erlang VM is responding and if not
> restarting the VM.
> Brutal but in line with the "Let it Fail" Erlang philosophy.
>
> Are you encountering any other limits or have anything in /var/log/*
> of note at that
> time?
>
> You can read up about the erlang hb mechanism at
> http://www.erlang.org/doc/man/heart.html
>
> Of note if you're running a virtual machine is that rapid time
> adjustments could trigger this also.
>
> Perhaps benoitc has some experience to share with OpenBSD Couch + Erlang.
>
> Hopefully this is enough to point you in the right direction.
>
> A+
> Dave
>

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