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Date: Mon, 16 Jan 2012 09:16:37 -0500
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To: users@httpd.apache.org
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Subject: [users@httpd] Children Disappear

I have several ec2 instances running identical versions of drupal on
apache 2.2.6. They also have identical apache configs, which includes
these settings --

StartServers        8
MinSpareServers     8
MaxSpareServers    20
ServerLimit       256
MaxClients        256
MaxRequestsPerChild  4000

Every couple of weeks or so, I get an alert that a machine is running
just a single apache process. It's always the same machine, and I'll
find that only the parent is running. There are no errors logged, and
I don't see memory pressure or load problems (everything is
monitored.) Any ideas on what this might be, or suggestions on how to
troubleshoot it?  Am I missing something obvious?

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