Hermann Himmelbauer wrote at 2008-10-17 23:04 +0200:
>During testing, I found the following warnings/errors in my zope log:
>2008-10-17T17:56:50 WARNING ZopePublication Competing writes/reads at ???: 
>database conflict error (oid 0x06d3, class zc.queue._queue.BucketQueue, 
>serial this txn started with 0x0379451cbf5d7bdd 2008-10-17 15:56:44.851212, 
>serial currently committed 0x0379451ccd1f50bb 2008-10-17 15:56:48.075545)
>2008-10-17T17:58:10 ERROR txn.1121233232 Error in tpc_abort() on manager 
><zope.sqlalchemy.datamanager.SessionDataManager object at 0x35a4f50>
>Traceback (most recent call last):
> ...
>line 82, in tpc_abort
>    raise TypeError("Already committed")
>TypeError: Already committed
>2008-10-17T17:58:10 WARNING ZopePublication Competing writes/reads 
>at /BSPSite/act/@@/bspskin-res/bankaustria.gif: database conflict error (oid 
>0x06e3, class zope.session.session.SessionData)
>Why is this happening? I have to admit, that I'm currently 
>testing/implementing background tasks with lovely.remotetask - perhaps this 
>is the reason? Perhaps it's the combination with zope.sqlalchemy?

There have been problems with the (then) released version of
"zope.sqlalchemy" (discussed in this mailing list).

These problems are said to be fixed in the "svn" version.

Do your problems also occur with the "svn" version?

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