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AH00524: Handler for (null) returned invalid result code // change error log format

Discussion in 'General Discussion' started by morrow95, Oct 10, 2015.

  1. morrow95

    morrow95 Well-Known Member

    Oct 8, 2006
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    I am getting tons of these in my /usr/local/apache/logs/error_log all day long and every day :

    [Sat Oct 10 15:58:44.537244 2015] [core:error] [pid 3532:tid 139956878046976] [client] AH00524: Handler for (null) returned invalid result code 70007

    I cannot for the life of me figure out what is causing this. Doing research I have found everything from it being related to file uploads to the client using a proxy on their side.

    1 - Any ideas at all here?

    2 - Is it possible to add the page/file/etc to the error log entries so I at least know where this is originating from?

    Using mpm-event, suphp, suexec. Aside from this error happening all the time everything appears to be working fine, however, it would appear this error is causing a 500 internal which is definitely something I want to fix.
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager Staff Member

    Apr 11, 2011
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    Root Administrator
    Hello :)

    The 70007 is an APR error code which usually means there is a read timeout. The accessed scripts are timing out before the headers are returned. Basically, Apache expects a different error than what is returned (because of the timeout) - it's expecting a status code of 0 (or OK). This is typically due to a firewall or proxy misconfiguration. Some users have reported that switching to a different MPM addressed the issue.

    Thank you.
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