[ZODB-Dev] RE: [Zope] Analyzing ZODB objects

Dieter Maurer dieter at handshake.de
Tue Oct 28 13:44:05 EST 2003


Bjorn Stabell wrote at 2003-10-27 09:45 +0800:
 > > From: Dieter Maurer [mailto:dieter at handshake.de] 
 > ....
 > > I had a similar problem (the ZODB grew far too fast) and I 
 > > wanted to understand why.
 > >
 > > I extended Zope's "Undo" information to include the 
 > > transaction size. This allowed me to see precisely which 
 > > transactions were larger than expected.
 > > 
 > > I extended the "fsdump" utility to include the (pickle) sizes 
 > > of the object records contained in a transaction and to 
 > > restrict the range of dumped transactions.
 > > 
 > > This has been enough to analyse the problem: ZCatalog's 
 > > Metadata records caused a transaction size to grow from an 
 > > expected few hundred bytes to about 500 kB.
 > 
 > Any chance of seeing these changes in the core?

I cannot speak about the core...
But, I can make the extensions available.

-- 
Dieter



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