I managed to get a DeadlockDebugger trace on this thing, it made very
interesting reading:
Thread -1578087504 (GET
/VirtualHostBase/http/www.last-bastion.net:80/BastionLedger/ledgerlist/Mail_338253076):
File /opt/zope2.8/lib/python/ZServer/PubCore/ZServerPublisher.py,
line 23, in __init__
response=response)
File /opt/zope2.8/lib/python/ZPublisher/Publish.py, line 387, in
publish_module
environ, debug, request, response)
File /opt/zope2.8/lib/python/ZPublisher/Publish.py, line 188, in
publish_module_standard
response = publish(request, module_name, after_list, debug=debug)
File
/opt/zope2.8/lib/python/Products/PlacelessTranslationService/PatchStringIO.py,
line 51, in new_publish
x = Publish.old_publish(request, module_name, after_list, debug)
File /opt/zope2.8/lib/python/ZPublisher/Publish.py, line 114, in publish
request, bind=1)
File /opt/zope2.8/lib/python/ZPublisher/mapply.py, line 88, in mapply
if debug is not None: return debug(object,args,context)
File /opt/zope2.8/lib/python/ZPublisher/Publish.py, line 40, in
call_object
result=apply(object,args) # Type scr to step into published object.
File /opt/zope2.8/lib/python/Shared/DC/Scripts/Bindings.py, line
311, in __call__
return self._bindAndExec(args, kw, None)
File /opt/zope2.8/lib/python/Shared/DC/Scripts/Bindings.py, line
329, in _bindAndExec
def _bindAndExec(self, args, kw, caller_namespace):
File /opt/zope2.8/lib/python/Shared/DC/Scripts/Bindings.py, line
348, in _bindAndExec
return self._exec(bound_data, args, kw)
File /opt/zope2.8/lib/python/Products/CMFCore/FSPageTemplate.py,
line 195, in _exec
result = self.pt_render(extra_context=bound_names)
File /opt/zope2.8/lib/python/Products/CMFCore/FSPageTemplate.py,
line 134, in pt_render
result = FSPageTemplate.inheritedAttribute('pt_render')(
File /opt/zope2.8/lib/python/Products/PageTemplates/PageTemplate.py,
line 104, in pt_render
tal=not source, strictinsert=0)()
File /opt/zope2.8/lib/python/TAL/TALInterpreter.py, line 202, in
__call__
def __call__(self):
File /opt/zope2.8/lib/python/Products/PageTemplates/ZRPythonExpr.py,
line 47, in __call__
return eval(code, g, {})
File Python expression putils.createTopLevelTabs(actions), line 1,
in expression
File /opt/zope2.8/lib/python/Products/CMFPlone/PloneTool.py, line
701, in createTopLevelTabs
default=data['name'])
File
/opt/zope2.8/lib/python/Products/CMFPlone/TranslationServiceTool.py,
line 35, in utranslate
return utranslate(*args, **kw)
File /opt/zope2.8/lib/python/Products/CMFPlone/i18nl10n.py, line 53,
in utranslate
return service.utranslate(*args, **kw)
File
/opt/zope2.8/lib/python/Products/PlacelessTranslationService/PlacelessTranslationService.py,
line 133, in utranslate
if not service: return default
File /opt/zope2.8/lib/python/ZODB/Connection.py, line 704, in setstate
self._setstate(obj)
File /opt/zope2.8/lib/python/ZODB/Connection.py, line 760, in _setstate
self._reader.setGhostState(obj, p)
File /opt/zope2.8/lib/python/ZODB/serialize.py, line 495, in
setGhostState
state = self.getState(pickle)
File /opt/zope2.8/lib/python/ZODB/serialize.py, line 488, in getState
return unpickler.load()
File /opt/zope2.8/lib/python/ZODB/serialize.py, line 436, in
_persistent_load
return self._conn.get(oid)
File /opt/zope2.8/lib/python/ZODB/Connection.py, line 216, in get
return obj
File /opt/zope2.8/lib/python/ZEO/ClientStorage.py, line 746, in load
return self.loadEx(oid, version)[:2]
File /opt/zope2.8/lib/python/ZEO/ClientStorage.py, line 781, in loadEx
return data, tid, ver
*every* thread was block-waiting on zeo (from a wide range of different
Zope/Plone types)! It looks to me like Apache has timed out, clearing
down it's end, Zope however is still having to wait for zeo which is
completely borked.
I've consequently ditched zeo and everything is again well-behaved.
Alan
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