On Tue, 26 Mar 2002 21:29, Toby Dickenson wrote:

On Tue, 26 Mar 2002 15:30:56 +1100, Richard Jones

rjones@ekit-inc.com wrote:

...

I'm investigating why our product ZODB is growing when it shouldn't. I've found that the undo log has entries in it every five minutes saying "Installed product CallProfiler by Zope". More infrequently (not regularly) we also have "Installed product ZOracleDA by Zope".

Was zope restarting (or being restarted) every five minutes?

No, but it is being pinged. By that, I mean that we have a script that tries to access the ZEO server every five minutes to make sure it's all OK. The script does the following::

import sys, os sys.path.append('/app/zope/zopecontrol_code/') sys.path.insert(0, '/app/zope/zopecontrol_code/lib/python') os.environ['ZEOPORT'] = '8076' os.environ['ZEOHOST'] = 'devhost1.off.ekorp.com' import Zope # now do stuff with the Zope.app() (we don't actually have to do anything # to trigger the ZODB note generation - the import is enough)

Now, the problem lies in the way that the CallProfiler gets itself into the Control Panel. This code was copied from the LeakFinder product, so I assume it'll have the same problem. The code is::

def installControlPanel(context, panelClass): from App.ApplicationManager import ApplicationManager from Acquisition import aq_base app = context._ProductContext__app cp = app.Control_Panel id = panelClass.id if 0: # Enable to clean up the control panel. try: del cp._objects except: pass cp.id # Unghostify. if hasattr(cp, id): return cp._getOb(id) if cp.__dict__.has_key('_objects'): # _objects has been overridden. We have to persist. existing = getattr(aq_base(cp), id, None) if existing is None or existing.__class__ != panelClass: cp._setObject(id, panelClass()) else: # Don't persist what we don't have to. objects = ApplicationManager._objects objects = filter(lambda o, id=id: o['id'] != id, objects) ApplicationManager._objects = objects + ( {'id':id, 'meta_type':panelClass.meta_type},) try: delattr(cp, id) except: pass setattr(ApplicationManager, id, panelClass()) return cp._getOb(id)

Where panelClass is my Product's class.

When the ping script imports Zope, the product is installed. If it's installed as a "regular" product, using context.registerClass, all is OK. If it is installed using the above function, I get ZODB transaction notes of the form "Installed product CallProfiler by Zope 2002-04-08 11:14:10 PM".

It's all a bit black magic for me though. I honestly don't know why half of the function above actually exists. I'm going to keep looking though, but if someone could help, I'd be extremely grateful.

Richard