[ZODB-Dev] ZODB Conflict Error

[Wohnlich, Eric (IMS)]

First of all, I know this error is to be expected and we have indeed
received this error at other times, but without there being a problem.
Lately we have had a problem where the CPU usage shoots way up after one
of this errors and Zope has to be restarted.  It appears to always be
happening with the same site (we have several sites on this Zope
instance), for which the Z2 and events logs at the time of the last
occurence are below.  Again, every time it spikes like this, this site
in particular has been the source.  This is probably way off, but the
only thing I can think of that is different between this site and our
others is that the Apache rewrite rules put it in a different directory
name - it goes from www.xxxxx.com/db2/tissueresources
<http://www.xxxxx.com/db2/tissueresources>  to www.yyyyy.com/cbctr
<http://www.yyyyy.com/cbctr> ...  Could faulty rewrite rules cause it to
fail the retry?  I don't know - any suggestions are welcome.
 
xx.xxx.xx.xxx - rickerw [15/Aug/2006:13:44:06 -0400] "POST
/VirtualHostBase/https/xxx.xxx.xxx.xxx:443/db2/tissueresources/VirtualHo
stRoot/_vh_cbctr/teamspaces/dclung/portal_factory/PloneExFile/ploneexfil
e.2006-08-15.1441715937/base_edit HTTP/1.1" 302 518
"https://xxx.xxx.xxx.xxx/cbctr/teamspaces/dclung/portal_factory/PloneExF
ile/ploneexfile.2006-08-15.1441715937/base_edit
<https://xxx.xxx.xxx.xxx/cbctr/teamspaces/dclung/portal_factory/PloneExF
ile/ploneexfile.2006-08-15.1441715937/base_edit> " "Mozilla/4.0
(compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.0.3705; .NET CLR
2.0.50727; InfoPath.1)"
xx.xxx.xx.xxx - rickerw [15/Aug/2006:13:44:54 -0400] "POST
/VirtualHostBase/https/xxx.xxx.xxx.xxx:443/db2/tissueresources/VirtualHo
stRoot/_vh_cbctr/teamspaces/dclung/portal_factory/PloneExFile/ploneexfil
e.2006-08-15.1441715937/base_edit HTTP/1.1" 302 558
"https://xxx.xxx.xxx.xxx/cbctr/teamspaces/dclung/portal_factory/PloneExF
ile/ploneexfile.2006-08-15.1441715937/base_edit
<https://xxx.xxx.xxx.xxx/cbctr/teamspaces/dclung/portal_factory/PloneExF
ile/ploneexfile.2006-08-15.1441715937/base_edit> " "Mozilla/4.0
(compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.0.3705; .NET CLR
2.0.50727; InfoPath.1)"
 
2006-08-15T13:44:56 INFO ZODB conflict error at
/VirtualHostBase/https/xxx.xxx.xxx.xxx:443/db2/tissueresources/VirtualHo
stRoot/_vh_cbctr/teamspaces/dclung/portal_factory/PloneExFile/ploneexfil
e.2006-08-15.1441715937/base_edit (1 conflicts since startup at
2006-08-15T03:02:44) 
 
We are using Zope 2.8.1 and Plone 2.1.x 
 
-Eric
 
 
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