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
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-- Dennis Allison * Computer Systems Laboratory * Gates 227 * Stanford University * Stanford CA 94305 * (650) 723-9213 * (650) 723-0033 fax * allison@shasta.stanford.edu * allison@sumeru.stanford.edu