DO NOT REPLY [Bug 45359] New: Apache Spawns Unnecessary Processes ( forward proxy mode)

https://issues.apache.org/bugzilla/show_bug.cgi?id=45359

           Summary: Apache Spawns Unnecessary Processes (forward proxy mode)
           Product: Apache httpd-2
           Version: 2.2.9
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: critical
          Priority: P2
         Component: All
        AssignedTo: bugs@...
        ReportedBy: pbelau1@...


Apache seems to occasionally spawn up to 100+ extra processes even though the
apache.conf ServerLimit is set well below the 100+ threshold. Relevant config
is such:

ServerLimit 24
ThreadLimit 512
ThreadsPerChild 512
MinSpareThreads 256
MaxSpareThreads 12288
MaxRequestsPerChild 0
MaxClients 12288

The documentation would imply that the maximum number of processes with such a
configuration would be 24 since MaxRequestsPerChild is infinite and
MaxSpareThreads is equal to MaxClients.


I'm running in forward-proxy mode with a few custom modules but nothing that
forks off new proceses.

Would be glad to provide any additional information and/or debug if someone can
tell me where to look.


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https://issues.apache.org/bugzilla/show_bug.cgi?id=45359





--- Comment #1 from Ruediger Pluem <rpluem@...>  2008-07-07 23:13:50 PST ---
*** Bug 45360 has been marked as a duplicate of this bug. ***


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https://issues.apache.org/bugzilla/show_bug.cgi?id=45359





--- Comment #2 from Jeff Trawick <trawick@...>  2008-07-08 03:22:52 PST ---
Graceful restart combined with occasional very-long-running requests will also
result in extra processes (until the long-running requests finish).

Attach to a sample of the httpd child processes with gdb and run "thread apply
all bt" to see how many threads there are and what they are doing.  Post a
summary here.


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