Thanks for the reply and sorry about the HTML (had Outlook re-installed recently).

Yes, I do mean ZODB (just wanted to indicate that I am using it in a Zope context and not stand-alone).

I'll try and compile a test case as suggested by Toby and see if I can reproduce the problem. 

B.t.w. the only possibly "interesting" (read unstable ;) product I have installed is my own!  So I AM probably the cause of my own problem (not that it takes me nearer to the solution though).

What I also did not mention is that I am adding and retrieving the messages through XML-RPC, don't know if that's got anything to do with my problem though.

I have in the mean time started moving the finely grained stuff over to a relational DB (yuck) and that should help.

I saw that the data.fs file grew quite rapidly with a lot of finely grained operations, what's the best way to curb this?  Packing every now and again?  How do I do that programatically?

Regards
Etienne

>Etienne,

>Firstly, please don't post in HTML.

>Etienne Labuschagne wrote:
>> Hmm, it seems as if I am the only one with this problem.

>Seems so, you got any interesting Products or External Methods (or
>pactches/monkey fixes/etc) installed?

>> It is probably best to move the very finely grained data into a
>> relational type DB - I'm not sure that Zope is great for a lot of small
>> object creation/deletion cycles anyway.

>I presume you mean 'ZODB', not 'Zope'. And I'd disagree. The number of
>creation/deletion cycles only influences the size at which a filestorage will grow.

>cheers,

>Chris