Re: [Zope] KeyErrors in Zope using ZEO
> However, I'm still experiencing intermittent KeyErrors with the session > stuff. The line of code that always breaks is "session = > REQUEST.SESSION" and it has happened everywhere in my code that I use > that. Is there a better way to access the session that I should be > using? I think there is no better way although there are different ways. Maybe you should think again if you really have to use sessions shared between zeo clients. If so then you should possibly try Faster (another session implementation) that is said to be better especially in such setup with ZEO. -- Maciej Wisniowski ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] KeyErrors in Zope using ZEO
Removing the 'name zeostorage' didn't have any affect on the issue. I was able to fix the KeyErrors by increasing the cache-size in the zeo client configuration part of the zope.conf though. However, I'm still experiencing intermittent KeyErrors with the session stuff. The line of code that always breaks is "session = REQUEST.SESSION" and it has happened everywhere in my code that I use that. Is there a better way to access the session that I should be using? The traceback ends like this: * Module ZPublisher.HTTPRequest, line 1217, in __getattr__ * Module ZPublisher.HTTPRequest, line 1177, in get * Module Products.Sessions.SessionDataManager, line 96, in getSessionData * Module Products.Sessions.SessionDataManager, line 183, in _getSessionDataObject * Module Products.Transience.Transience, line 846, in new_or_existing * Module Products.Transience.Transience, line 452, in __setitem__ I'm now using the exact same configuration for sessions as detailed in http://www.zopelabs.com/cookbook/1061234337 except the zeo server is on a different box than the clients. Any ideas? Thanks, Mike Bakhtiar A Hamid wrote: On 5/12/07, Mike Patterson <[EMAIL PROTECTED]> wrote: Hi, We've been experiencing two KeyError problems with Zope since moving to a ZEO environment at the beginning of the year. On the server that the ZEO server resides we have 3 Zope instances running, and each of them gets a KeyError about once or twice a week individually. Restarting the offending instance takes care of the issue, but I was wondering if anyone has an idea of why we would be seeing these. Thanks, Mike looks like there may be problems with the cache file. try not using the cache file and see whether that helps by removing name zeostrorage on each clients. hth ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] KeyErrors in Zope using ZEO
On 5/12/07, Mike Patterson <[EMAIL PROTECTED]> wrote: Hi, We've been experiencing two KeyError problems with Zope since moving to a ZEO environment at the beginning of the year. On the server that the ZEO server resides we have 3 Zope instances running, and each of them gets a KeyError about once or twice a week individually. Restarting the offending instance takes care of the issue, but I was wondering if anyone has an idea of why we would be seeing these. Thanks, Mike The error that we get is: 2007-05-02T19:18:45 ERROR ZODB.Connection Couldn't load state for 0x1c2d6e Traceback (most recent call last): File "/opt/Plone-2.5/lib/python/ZODB/Connection.py", line 732, in setstate self._setstate(obj) File "/opt/Plone-2.5/lib/python/ZODB/Connection.py", line 768, in _setstate p, serial = self._storage.load(obj._p_oid, self._version) File "/opt/Plone-2.5/lib/python/ZEO/ClientStorage.py", line 746, in load return self.loadEx(oid, version)[:2] File "/opt/Plone-2.5/lib/python/ZEO/ClientStorage.py", line 774, in loadEx self._cache.store(oid, ver, tid, None, data) File "/opt/Plone-2.5/lib/python/ZEO/cache.py", line 293, in store self.fc.add(o) File "/opt/Plone-2.5/lib/python/ZEO/cache.py", line 980, in add available = self._makeroom(size) File "/opt/Plone-2.5/lib/python/ZEO/cache.py", line 915, in _makeroom size, e = self.filemap.pop(ofs) KeyError: 19826745 looks like there may be problems with the cache file. try not using the cache file and see whether that helps by removing name zeostrorage on each clients. hth -- http://myzope.kedai.com.my - my-zope org ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] KeyErrors in Zope using ZEO
Hi,
We've been experiencing two KeyError problems with Zope since moving
to a ZEO environment at the beginning of the year. On the server that
the ZEO server resides we have 3 Zope instances running, and each of
them gets a KeyError about once or twice a week individually.
Restarting the offending instance takes care of the issue, but I was
wondering if anyone has an idea of why we would be seeing these.
Thanks,
Mike
The error that we get is:
2007-05-02T19:18:45 ERROR ZODB.Connection Couldn't load state for 0x1c2d6e
Traceback (most recent call last):
File "/opt/Plone-2.5/lib/python/ZODB/Connection.py", line 732, in setstate
self._setstate(obj)
File "/opt/Plone-2.5/lib/python/ZODB/Connection.py", line 768, in
_setstate
p, serial = self._storage.load(obj._p_oid, self._version)
File "/opt/Plone-2.5/lib/python/ZEO/ClientStorage.py", line 746, in load
return self.loadEx(oid, version)[:2]
File "/opt/Plone-2.5/lib/python/ZEO/ClientStorage.py", line 774, in loadEx
self._cache.store(oid, ver, tid, None, data)
File "/opt/Plone-2.5/lib/python/ZEO/cache.py", line 293, in store
self.fc.add(o)
File "/opt/Plone-2.5/lib/python/ZEO/cache.py", line 980, in add
available = self._makeroom(size)
File "/opt/Plone-2.5/lib/python/ZEO/cache.py", line 915, in _makeroom
size, e = self.filemap.pop(ofs)
KeyError: 19826745
--
Each Zope instance has a configuration file containing this:
# Main FileStorage database
server localhost:8100
storage 1
name zeostorage
var $INSTANCE/var
pool-size 10
cache-size 1
mount-point /
# Temporary storage database (for sessions)
mount-point /temp_folder
container-class Products.TemporaryFolder.TemporaryContainer
pool-size 10
server localhost:8100
storage temp
name temp
var $INSTANCE/var
--
And the zeo.conf file looks like:
%define INSTANCE /opt/Plone-2.5/zeocluster/server
address 8100
read-only false
invalidation-queue-size 1000
# pid-filename $INSTANCE/var/ZEO.pid
# monitor-address PORT
# transaction-timeout SECONDS
path $INSTANCE/var/Data.fs
%import tempstorage
name temporary storage
level info
path $INSTANCE/log/zeo.log
program $INSTANCE/bin/runzeo
socket-name $INSTANCE/var/zeo.zdsock
daemon true
forever false
backoff-limit 10
exit-codes 0, 2
directory $INSTANCE
default-to-interactive true
user plone
python /opt/Plone-2.5/Python-2.4.3/bin/python
zdrun /opt/Plone-2.5/lib/python/zdaemon/zdrun.py
# This logfile should match the one in the zeo.conf file.
# It is used by zdctl's logtail command, zdrun/zdctl doesn't write it.
logfile $INSTANCE/log/zeo.log
--
Also, on a different server that connects to the same ZEO server,
occasionally upon startup we'll be greeted by the following error
error. The line of code that causes the error is REQUEST.SESSION.get
2007-05-11T09:34:20 ERROR Zope.SiteErrorLog
https://www.ltgc.com/Expert/ltgc.com/ltgc.com/page
Traceback (innermost last):
Module ZPublisher.Publish, line 115, in publish
Module ZPublisher.mapply, line 88, in mapply
Module ZPublisher.Publish, line 41, in call_object
Module Shared.DC.Scripts.Bindings, line 311, in __call__
Module Shared.DC.Scripts.Bindings, line 348, in _bindAndExec
Module Products.PythonScripts.PythonScript, line 325, in _exec
Module None, line 3, in page
-
- Line 3
Module Products.ExternalMethod.ExternalMethod, line 225, in __call__
- __traceback_info__: ((/Expert/ltgc.com>, '0Mdys-DaqxT
SIoTxC9_IuCETrPXoHGO-XtKcH9JMpwzkYNjKdUb7jLl_574agJt5RoVrBopnWX-meqaV7CnjNX4rxVFGQjMVj2knwS05zf_Z
Dv3BrFnagaO1s9QgY3OB9xmgF_otwtEP8wTwNNg9pE3qPmDjlq0FERlEPcj1q9xB8ZYd-3OWMaRkq_XrrSGn0BP0cXV3GexAl
Km_74g0OA'), {}, None)
Module /opt/Plone-2.5/zeocluster/client1/Extensions/wwizparser.py,
line 15, in redirect
Module Products.CMFCore.PortalContent, line 108, in __call__
Module Products.ExpertMenu.ExpertMenu, line 252, in view
Module ZPublisher.HTTPRequest, line 1217, in __getattr__
Module ZPublisher.HTTPRequest, line 1177, in get
Module Products.Sessions.SessionDataManager, line 96, in getSessionData
Module Products.Sessions.SessionDataManager, line 183, in
_getSessionDataObject
Module Products.Transience.Transience, line 843, in new_or_existing
Module Products.Transience.Transience, line 493, in get
Module Products.Transience.Transience, line 330, in _move_item
KeyError: 1178897660
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