[ZODB-Dev] zeo bug

[Jim Fulton]

Thanks.  That's due to a clear bug.

Could you report this to the launchpad tracker for ZODB:

    https://launchpad.net/zodb/+filebug

I suspect that the internal cache information is out of sync, perhaps  
due to running out of space as you hint.  I plan to dive deeply into  
the ZEO cache in the next few weeks.  I doubt I'll have time to look  
into this until then.  In the mean time, If the problem persists, I  
suggest restarting the process to cause the cache to be removed.   
("Non-persistent" caches are in fact persistent for the life of the  
process.)  Of course, the downside of this is that it may take a  
while to refill the cache.

Jim

On May 15, 2007, at 12:39 AM, Alan Runyan wrote:

> Just got this on a website, Zope 2.9.6.
> Looks like /tmp is 90% full, not sure that would cause the problem?
>
> Not using persistent disk cache:
>
> <zodb_db main>
>  mount-point /
>  # ZODB cache, in number of objects
>  cache-size 20000
>  <zeoclient>
>    server $HOST:$PORT
>    storage 1
>    name $MAIN_NAME
>    var $INSTANCE/var
>    # ZEO client cache, in bytes
>    cache-size 1024MB
>    # Uncomment to have a persistent disk cache
>    #client zeo1
>  </zeoclient>
> </zodb_db>
>
> <zodb_db catalog>
>   mount-point /audioholics/portal_catalog
>   container-class Products.CMFPlone.CatalogTool.CatalogTool
>   cache-size 50000
>   <zeoclient>
>    cache-size 1024MB
>    server $HOST:$PORT
>    storage 2
>    name $CATALOG_NAME
>    var $INSTANCE/var
>  </zeoclient>
> </zodb_db>
>
> KeyError
> Sorry, a site error occurred.
>
> Traceback (innermost last):
>
>    * Module ZPublisher.Publish, line 196, in publish_module_standard
>    * Module Products.PlacelessTranslationService.PatchStringIO, line
> 34, in new_publish
>    * Module ZPublisher.Publish, line 146, in publish
>    * Module Zope2.App.startup, line 222, in zpublisher_exception_hook
>    * Module ZPublisher.Publish, line 106, in publish
>    * Module ZPublisher.BaseRequest, line 366, in traverse
>    * Module ZODB.Connection, line 732, in setstate
>    * Module ZODB.Connection, line 786, in _setstate
>    * Module ZODB.serialize, line 604, in setGhostState
>    * Module ZODB.serialize, line 597, in getState
>    * Module ZODB.serialize, line 471, in _persistent_load
>    * Module ZODB.serialize, line 537, in load_oid
>    * Module ZODB.Connection, line 201, in get
>    * Module ZEO.ClientStorage, line 746, in load
>    * Module ZEO.ClientStorage, line 774, in loadEx
>    * Module ZEO.cache, line 293, in store
>    * Module ZEO.cache, line 980, in add
>    * Module ZEO.cache, line 915, in _makeroom
>
> KeyError: 131867244 (Also, the following error occurred while
> attempting to render the standard error message, please see the event
> log for full details: already have current data for oid)
>
>
> -- 
> Alan Runyan
> Enfold Systems, Inc.
> http://www.enfoldsystems.com/
> phone: +1.713.942.2377x111
> fax: +1.832.201.8856
> _______________________________________________
> For more information about ZODB, see the ZODB Wiki:
> http://www.zope.org/Wikis/ZODB/
>
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