That seems to have been the problem.  The ZopeProfiler version I was using 
does not work with Zope2.7 although Dieter has a version (1.4) that works 
with Zope2.7.3, I was not using it.  I also suspect there may be a problem 
with multiheaded Zope/ZEO configurations.

On Tue, 10 May 2005, Chris McDonough wrote:

> It appears that something in the ZopeProfiler product is unhappy with
> your configuration.  Does it work if you remove this product?
> 
> On Mon, 2005-05-09 at 23:37 -0700, Dennis Allison wrote:
> > I am hoping someone with more experience that I with multi-headed 
> > Zope/ZEO installations can point out my problem.
> > 
> > I am using with Zope 2.7.6-final and Python 2.4.1.   Yes, I know I am 
> > jumping the gun with 2.4.1 but I expect that it is not the source of the 
> > problem.  Hardware is an Athlon dual processor CPU running Linux (RH 7.3).
> > 
> > I am trying to configure multiple Zope heads with a ZEO with shared
> > session variables.  This means that the session variables need to be in a
> > temporary folder associated with the ZEO instance rather than the Zope
> > instance.  The logs seem to indicate both ZEO and the ZEO temporary 
> > storage is properly hooked up.  
> > 
> > My setup dies with an unhandled exception during startup with a
> > ConnectionStateError.  Since it appeared when I moved temporary 
> > storage from Zope to ZEO, I suspect the problem is somewhere in 
> > that space.
> > 
> > The traceback appended below is truncated for some reason.  I was 
> > running the zope instance with the ``runzope`` program with output 
> > appended to the controlling terminal.
> > 
> > 
> > 
> > The relevant part of the zope.conf the configuration file is:
> > 
> > # ZEO client storage:
> > #
> > <zodb_db main>
> >   mount-point /
> >   # ZODB cache, in number of objects
> >   cache-size 5000
> >   <zeoclient>
> >     server 192.168.0.92:8301
> >     storage 1
> >     var $INSTANCE/var
> >     # ZEO client cache, in bytes
> >     cache-size 20MB
> >     # Uncomment to have a persistent disk cache
> >     client zeo1
> >   </zeoclient>
> > </zodb_db>
> > #
> > # ZEO temporary storage
> > #
> > <zodb_db temporary>
> >     <zeoclient>
> >         server 192.168.0.92:8301
> >         storage temp
> >         name zeostorage
> >         var $INSTANCE/var
> >     </zeoclient>
> >     mount-point /temp_folder
> >     container-class Products.TemporaryFolder.TemporaryContainer
> > </zodb_db>
> > 
> > And the relevant portion of the zeo.conf configuration file is:
> > 
> > <zeo>
> >   address 192.168.0.92:8301
> >   read-only false
> >   invalidation-queue-size 100
> >   pid-filename $INSTANCE/var/ZEO.pid
> >   # monitor-address PORT
> >   # transaction-timeout SECONDS
> > </zeo>
> > 
> > <filestorage 1>
> >   path $INSTANCE/var/Data.fs
> > </filestorage>
> > 
> > # temporary storage has to be ZEO side
> > %import tempstorage
> > <temporarystorage temp>
> >     name temporary storage for sessioning
> > </temporarystorage>
> > 
> > Running with this configuration, dies with an exception:
> > 
> > 2005-05-09T23:01:43 INFO(0) ZCS:10522 ClientStorage (pid=10522) created 
> > RW/normal for storage: '1'
> > ------
> > 2005-05-09T23:01:43 INFO(0) 
> > ZEC:/opt2/zope/zinstances/leibnitz/var/c1-zeo1-0.zec ClientCache: 
> > storage='1', size=20971520; 
> > file[0]='/opt2/zope/zinstances/leibnitz/var/c1-zeo1-0.zec'
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZCS:10522 Testing connection 
> > <ManagedClientConnection ('192.168.0.92', 8301)>
> > ------
> > 2005-05-09T23:01:43 INFO(0) zrpc-conn(C):192.168.0.92:8301 received 
> > handshake 'Z201'
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZCS:10522 Server authentication protocol None
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZCS:10522 Connected to storage: ('x-epaul', 
> > 8301)
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZCS:10522 Verifying cache
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZCS:10522 Waiting for cache verification to 
> > finish
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZCS:10522 Waiting for cache verification to 
> > finish
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZCS:10522 endVerify finishing
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZCS:10522 endVerify finished
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZODB Opening database for mounting: 
> > '1087156928_1109278350.209647'
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZODB Mounted database 
> > '1087156928_1109278350.209647' at /temp_folder
> > ------
> > 2005-05-09T23:01:43 INFO(0) Zope Ready to handle requests
> > 
> > Unhandled exception in thread started by <class 
> > ZServer.PubCore.ZServerPublisher.ZServerPublisher at 0x40467d4c>
> > Traceback (most recent call last):
> >   File 
> > "/usr/local/src/zope/Zope2.7/lib/python/ZServer/PubCore/ZServerPublisher.py",
> >  
> > line 23, in __init__
> >     response=response)
> >   File "/opt2/zope/zproducts/standard/ZopeProfiler/MonkeyPatcher.py", line 
> > 35, in __call__
> >     return self._function(*args,**kw)
> >   File "/opt2/zope/zproducts/standard/ZopeProfiler/ZopeProfiler.py", line 
> > 335, in _profilePublishModule
> >     _hookApplicationManager()
> >   File "/opt2/zope/zproducts/standard/ZopeProfiler/ZopeProfiler.py", line 
> > 383, in _hookApplicationManager
> >     R._p_jar.close()
> >   File 
> > "/usr/local/src/zope/Zope2.7/lib/python/Products/ZODBMountPoint/Mount.py", 
> > line 210, in close
> >     self._real_close()
> >   File "/usr/local/src/zope/Zope2.7/lib/python/ZODB/Connection.py", line 
> > 306, in close
> >     raise ConnectionStateError("Cannot close a connection joined to "
> > ZODB.POSException.ConnectionStateError: Cannot close a connection joined 
> > to a transaction
> > 
> > 
> > While the ZEO log shows
> > 
> > 2005-05-09T22:46:35 INFO(0) ZD:10284 daemonizing the process
> > ------
> > 2005-05-09T22:46:35 INFO(0) ZD:10284 set current directory: 
> > '/opt2/zope/zeoinstances/leibnitz'
> > ------
> > 2005-05-09T22:46:35 INFO(0) ZD:10284 daemon manager started
> > ------
> > 2005-05-09T22:46:35 INFO(0) ZD:10284 spawned process pid=10285
> > ------
> > 2005-05-09T22:46:36 INFO(0) RUNSVR created PID file 
> > '/opt2/zope/zeoinstances/leibnitz/var/ZEO.pid'
> > ------
> > 2005-05-09T22:46:36 INFO(0) RUNSVR opening storage '1' using FileStorage
> > ------
> > 2005-05-09T22:46:36 INFO(0) RUNSVR opening storage 'temp' using 
> > TemporaryStorage
> > ------
> > 2005-05-09T22:46:36 INFO(0) ZSS:10285 StorageServer created RW with 
> > storages: 1:RW:/opt2/zope/zeoinstances/leibnitz/var/Data.fs, 
> > temp:RW:temporary storage for sessioning
> > ------
> > 2005-05-09T22:46:36 INFO(0) zrpc:10285 listening on ('192.168.0.92', 8301)
> > ------
> > 2005-05-09T23:01:43 INFO(0) ZSS:10285 new connection ('192.168.0.92', 
> > 57425): <ManagedServerConnection ('192.168.0.92', 57425)>
> > ------
> > 2005-05-09T23:01:43 INFO(0) zrpc-conn(S):192.168.0.92:57425 received 
> > handshake 'Z201'
> > ------
> > 2005-05-09T23:07:20 INFO(0) ZSS:10285/192.168.0.92:57425 disconnected
> > 
> > 
> > _______________________________________________
> > Zope maillist  -  Zope@zope.org
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> > 
> 

-- 
Dennis Allison * Computer Systems Laboratory * Gates 227
               * Stanford University *  Stanford CA  94305
               * (650) 723-9213 * (650) 723-0033 fax
               * [EMAIL PROTECTED]
               * [EMAIL PROTECTED]


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