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List:       zope-dev
Subject:    [Zope-dev] running out of available tcp ports on a zeo cluster
From:       sathya <zope2 () zeomega ! com>
Date:       2008-12-25 10:04:27
Message-ID: 1444257771.72521230199467951.JavaMail.root () chandra ! zeomega ! com
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Hello folks,

We are testing a zeo cluster in a vmware environment (zeo clients are running on \
multiple windows 2003 server guest vms).  We are using Apache as a load balancer \
using mod_rewrite (on a separate windows 2003 guest vm ). We are using load runner to \
generate load  After hitting about 40 concurrent users we are getting tcp errors on \
apache  indicating that there are no available ports for accepting connections. It \
seems like the connections are hanging on for a longer period of time causing the \
available ports to get exhausted. The errors get worse on increasing the concurrent \
users. It seems as though there is a problem  recycling ports for new connections. \
Has anybody seen this problem before ? Is there an issue with connections between \
apache and zope not closing down ?

We have run similar tests on linux before and have not faced this problem ( I know, \
but the client wants windows :(  )  

Any feedback will be greatly appreciated.

Regards
sathya
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ZeOmega LLC
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www.zeomega.com
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