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  1. mod_cluster
  2. MODCLUSTER-466

mod_cluster undersizes the connection pool on httpd 2.2

    Description

    If all threads in a httpd child worker process are saturated with long requests, then all connections in the pool are exhausted, likely leaving none available for additional pings, which then fail with errors like:

    [error] (70007)The timeout specified has expired: proxy: ajp: failed to acquire connection for ...

    Documentation suggests the connection pool will be sized to ThreadsPerChild+1 to avoid that, but it looks like it is really just ThreadsPerChild on httpd 2.2.

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            • Assignee:
              jfclere Jean-Frederic Clere
              Reporter:
              aogburn Aaron Ogburn
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