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From Igor Cicimov <icici...@gmail.com>
Subject Re: [users@httpd] Reason for 503
Date Sat, 01 May 2010 21:29:14 GMT
Reaching max number of connections maybe?

Sent from my phone

On May 1, 2010 6:47 AM, "Boehm, Matthew" <mboehm@theplanet.com> wrote:

 Hello,

I’m searching for a way to determine why apache would present/return a 503
Service Unavailable. I cannot seem to find a way to log this other than the
fact that it occurred. There is no information in the error_log nor in
/var/log/message nor in any of the access_logs dealing with any of the
vhosts when this occurs.



We receive this error on about 1% of all requests. So far this month, we
have 2,274,314 unique visitors comprising of 82,602,703 hits (according to
awstats), so 1% is a lot!



How can I determine the “reason” behind the 503? I tried looking at apache
source to see where “return error_503” may be but that is a daunting task.



We are running PHP with the suPhpexec module, if that matters. All
mod_proxy* modules are disabled. We are running 2.2.14 on RHEL5.4.



Thanks in advance!



-Matthew

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