[Zope] database conflict error

Dieter Maurer dieter at handshake.de
Sat Jul 14 15:16:16 EDT 2007


Sudesh soni wrote at 2007-7-13 12:47 -0400:
> ...
>I am recieving following errors frequently as shown below:
>
>#1-------------------------------------------------------------------------
>
>Site Error
>An error was encountered while publishing this resource. 
>
>Error Type: ConflictError
>Error Value: database conflict error (oid 0x09, class Products.Transience.Transience.Increaser, serial this txn started with 0x036ee0b224215066 2007-07-09 
>
>16:50:08.468000, serial currently committed 0x036ee0b39eeeeeee 2007-07-09 16:51:37.250000)

This is a session conflict. Apparently, you have concurrent requests
accessing the same session objects.

While the "Increaser" implements application specific conflict
resolution, the "TemporaryStorage" often has not enough history
to allow conflict resolution.

>#2----------------------------------------------------------------------------
>
>database conflict error (oid 0x7b61, class BTrees._OOBTree.OOBTree, serial this txn started with 0x036ee63aae219655 2007-07-10 16:26:40.812000, serial 
>
>currently committed 0x036ee63b55aa87bb 2007-07-10 16:27:20.078000)

This might also be a session related conflict: the relatively small
"oid" may indicate this.

If this is indeed the case, then Andreas' advice will not work.
You can recognize this when the object retrieved by Andreas' proposal
is something else than an "OOBTree".



-- 
Dieter


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