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Errors / Warnings in Zope log - what to do?

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dusty at qwer

Oct 17, 2008, 2:04 PM

Post #1 of 3 (504 views)
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Errors / Warnings in Zope log - what to do?

Hi,
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):

File "/home/dusty/prog/bsp/buildout/eggs/ZODB3-3.8.0-py2.4-linux-x86_64.egg/transaction/_transaction.py",
line 462, in _cleanup
rm.tpc_abort(self)

File "/home/dusty/prog/bsp/buildout/eggs/zope.sqlalchemy-0.3-py2.4.egg/zope/sqlalchemy/datamanager.py",
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?

Best Regards,
Hermann

--
hermann [at] qwer
GPG key ID: 299893C7 (on keyservers)
FP: 0124 2584 8809 EF2A DBF9 4902 64B4 D16B 2998 93C7
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dieter at handshake

Oct 19, 2008, 12:28 AM

Post #2 of 3 (453 views)
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Re: Errors / Warnings in Zope log - what to do? [In reply to]

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?

--
Dieter
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dusty at qwer

Oct 20, 2008, 4:34 AM

Post #3 of 3 (471 views)
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Re: Errors / Warnings in Zope log - what to do? [In reply to]

Am Sonntag 19 Oktober 2008 09:28:25 schrieb Dieter Maurer:
> 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?

Ah, that could be the reason. I used zope.sqlalchemy 0.3, now I upgraded to
the SVN-version, hopefully the errors will be gone.

Thanks!

Best Regards,
Hermann

--
hermann [at] qwer
GPG key ID: 299893C7 (on keyservers)
FP: 0124 2584 8809 EF2A DBF9 4902 64B4 D16B 2998 93C7
_______________________________________________
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http://mail.zope.org/mailman/listinfo/zope-dev
** No cross posts or HTML encoding! **
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http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope )

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