Puppet users - Dec 2011 - Could not retrieve catalog fro m remote server: execution expired

Hello!

I am using puppet-2.7.6 on FreeBSD.

master is running with apache22 and passenger.

I have about 50 clients which share about 20 config files via puppet.

agents are configured to query master every 30 minutes with
splay=true.

After 2-3 days of running, server stops to respond.  I see in puppet
logs:

Nov 30 22:46:33 host puppet-agent[22554]: Could not retrieve catalog
fro
m remote server: execution expired
Nov 30 22:46:33 host puppet-agent[22554]: Using cached catalog
Nov 30 22:46:33 host puppet-agent[22554]: Could not retrieve catalog;
sk
ipping run
Nov 30 22:48:34 host puppet-agent[22554]: Could not run Puppet
configura
tion client: execution expired

On master machine I see 12 idle ruby processes (spawned by passenger).

The only way I found to fix the problem is to restart apache, but it
is not a solution.

What could be the reason for this problem?

Thanks!

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