On 12/10/2010 17:56, Jim Fulton wrote: > Currently the only configuration "docs" are in the .xml Alan provided a link > to. > > The best size will depend on the app.
Is there a downside to "too big", provided there's plenty of disk space free on the app servers? > There are some docs in > http://svn.zope.org/ZODB/trunk/doc/, although I don't know if they're > accurate. ...yeah, those look a lot like the original docs that Guido(?) wrote. > In ZODB 3.10, the cache tracing analysis tools actually work and produce > meaningful numbers if you start tracing with an empty cache. Okay, does that mean the stuff that's documented should be ignored for ZODB 3.9? I went for the following in the end: ... cache-size 200Mb client app wait on </zeoclient> mount-point / cache-size 50000 cache-size-bytes 500Mb Any obvious issues with that? One problem I did hit, though, was if I restarted an app server, I got: File "/var/buildout-eggs/ZODB3-3.9.6-py2.6-linux-i686.egg/ZODB/config.py", line 210, in open **options) File "/var/buildout-eggs/ZODB3-3.9.6-py2.6-linux-i686.egg/ZEO/ClientStorage.py", line 395, in __init__ self._cache = self.ClientCacheClass(cache_path, size=cache_size) File "/var/buildout-eggs/ZODB3-3.9.6-py2.6-linux-i686.egg/ZEO/cache.py", line 194, in __init__ self._lock_file = zc.lockfile.LockFile(path + '.lock') File "/var/buildout-eggs/zc.lockfile-1.0.0-py2.6.egg/zc/lockfile/__init__.py", line 76, in __init__ _lock_file(fp) File "/var/buildout-eggs/zc.lockfile-1.0.0-py2.6.egg/zc/lockfile/__init__.py", line 59, in _lock_file raise LockError("Couldn't lock %r" % file.name) LockError: Couldn't lock '....zec.lock' ...and yet the app server came up fine. What does this error message imply? The above did not, however, occur if I stopped and then started the app server... Race condition? Chris -- Simplistix - Content Management, Batch Processing & Python Consulting - http://www.simplistix.co.uk _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org https://mail.zope.org/mailman/listinfo/zodb-dev