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Fix MaxRequestsPerChild on the Event MPM.  It hasn't worked for 4 years.

* server/mpm/experimental/event/event.c
    (process_socket): Be consistent about our return value, returning 0
      means this connection is done, and that we can decrement requests_this_child.

Submitted by: pquerna
Reviewed by: jim


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* info->expire and info->date are in microseconds. So convert the difference
  to seconds before comparing it to age which is in seconds.

PR: 39713
Submitted by: Owen Taylor <otaylor redhat.com>
Reviewed by: rpluem, jim, jfclere


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* Correctly set SSL_LIBS during openssl detection if pkgconfig is not available.

PR: 46018

Submitted by: rpluem
Reviewed by: rpluem, jim, jfclere


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* Use distinct char pointers for sending and receiving buffers to avoid
  destroying the pointer to the sending buffer in the ajp message if
  data is received from the backend before all data is sent to the
  backend.

PR: 45911

Submitted by: rpluem
Reviewed by: rpluem, jim, jfclere


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Add force recovery for balancer.
In case all balancer members were in error state 503
was returned until the recovery timeout expired.
The patch forces recovery in case all balancer members
are in error state regardless of recovery timeout
directive.
This fixes the time gap when 503 was returned and
backend was already up and running.

Submitted by: mturk
Reviewed by: jim, rpluem, jfclere


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     of the buckets read from the proxy backend. PR 45792 [Ruediger Pluem]



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     connectiontimeout and ping in milliseconds. 
     Trunk version of patch:
       http://svn.apache.org/viewvc?rev=705005&view=rev
       http://svn.apache.org/viewvc?rev=707022&view=rev
     Backport version for 2.2.x of patch:
       http://people.apache.org/~rpluem/patches/milli_seconds.diff
     +1: rpluem, pgollucci, jim



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Remove potential for memory leak... allocate on this
request which is now viable due to connection pooling.

Reviewed by: jim


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Avoid time traveling :)

Reviewed by: jim


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Holey moley. Marcus Burke noted this in Rich's Nuts/Bolts talk.
How embarassing! 

Reviewed by: jim


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Windows: Always build the odbc dbd driver on windows, 
to be consistent with the apr-util default.  
DBD_LIST is still used to build additional dbd drivers.


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