[ZODB-Dev] ZEO client leaking memory?

Fritz Mesedilla fritz.mesedilla@summitmedia.com.ph
Sun, 7 Oct 2001 17:21:54 +0800


I hope you can enlighten me.
Is this topic somehow related that our load-balanced Zope clients needed to
be restarts once ina while because if not, the webpages become slow?

The thing is, the ZEO server is running on one instance. Then the clients
need to be restarted like every 4 hours or else it will stop serving pages.

Yes, the memory on the clients also take in a lot.

Cheers,

Fritz Mesedilla <www.mesedilla.com>
Systems Administrator

Summit Interactive, Inc.
fhm.com.ph | femalenetwork.com | candymag.com
---
+Basta Ikaw Lord


> -----Original Message-----
> From: zodb-dev-admin@zope.org [mailto:zodb-dev-admin@zope.org]On Behalf
> Of sean.upton@uniontrib.com
> Sent: Friday, October 05, 2001 11:52 PM
> To: tdickenson@geminidataloggers.com
> Cc: zodb-dev@zope.org
> Subject: RE: [ZODB-Dev] ZEO client leaking memory?
>
>
> A week or two ago, Zope was using about 1200MB on each of my 2
> load-balanced
> ZEO client nodes, and each box, which has 512MB and about 1GB of swap was
> unable to fork new processes.  Well, the site is a relatively high traffic
> site, and I do three intensive tasks automated daily in the middle of the
> night: first I add a few thousand objects to a bunch of folders containing
> an aggregate of about 10-15k objects.  I then do a bulk ZCatalog reindex,
> then I pack anything older than 1 day.  I've added to this mix a
> cron job to
> restart Zope on both my nodes after all this is done, which has seemed to
> solve my problem for now, but I'm still interested in finding out
> what sort
> of problem I'm actually having.
>
> Sean
>
> -----Original Message-----
> From: Toby Dickenson [mailto:tdickenson@devmail.geminidataloggers.co.uk]
> Sent: Friday, October 05, 2001 2:40 AM
> To: sean.upton@uniontrib.com
> Cc: jeremy@zope.com; chrisw@nipltd.com; zodb-dev@zope.org
> Subject: Re: [ZODB-Dev] ZEO client leaking memory?
>
>
> On Thu, 04 Oct 2001 10:42:03 -0700, sean.upton@uniontrib.com wrote:
>
> >Hmm... I have a similar problem, but I always assumed it was
> just a Catalog
> >BTree memory leak issue, not a ZEO issue.
>
> How much memory are you leaking?
>
> The stress-test I was using to test memory pressure included 10k
> indexing operations. adding roughly 500k ZODB objects in 5k documents.
> If there was any leakage at all in the ZEO client, it was at most a
> few megabytes. In the ZEO server leakage is difficult to distinguish
> from FileStorage bloat, but it was at most a few tens of megabytes.
> Thats quite a bit smaller than the problems Chris described.
>
>
>
> Toby Dickenson
> tdickenson@geminidataloggers.com
>
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