[Zope] Zope=ZEO connection
pw_lists at slinkp.com
Tue Feb 7 23:23:56 EST 2006
On Tue, Feb 07, 2006 at 06:18:49PM -0800, Dennis Allison wrote:
> Zope 2.9.0
> Python 2.4.2
> Amd dual Opteron
> I am seeing occasional (several per day) Zope crashes under load. The
> event.log immediately before and after the crash looks like:
> 2006-02-06T14:07:20 INFO ZPublisher.Conflict ConflictError at
> <some path>:
> database conflict error (oid 0x086e, class BTrees._OOBTree.OOBTree, serial
> this txn started with 0x03633ca95f75e900 2006-02-06 22:01:22.373575,
> serial currently committed 0x03633caf59114244 2006-02-06 22:07:20.875176)
> (463 conflicts (0 unresolved) since startup at Mon Feb 6 08:21:26 2006)
> 2006-02-06T14:09:09 INFO ZServer HTTP server started at Mon Feb 6
> 14:09:09 2006
> Hostname: x-harper
> Port: 8081
> which also triggers a connection drop and restarBt of ZEO.
> The failure happens silently even with
> level ALL
> path $INSTANCE/log/event.log
> level info
fwiw, you're still only logging at INFO.
> What sort of Zope failure can cause this sort of behavior? What's the
> best approach to get more information to localize the failure.
I really don't know. But I'd have a look at the trace log,
if you've got that configured (I routinely do).
Maybe you could spot some patterns right before the crashes?
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