[mod_cluster-issues] [JBoss JIRA] (MODCLUSTER-466) mod_cluster undersizes the connection pool on httpd 2.2

[Aaron Ogburn (JIRA)]

     [ https://issues.jboss.org/browse/MODCLUSTER-466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aaron Ogburn updated MODCLUSTER-466:
------------------------------------
    Git Pull Request: https://github.com/modcluster/mod_cluster/pull/155, https://github.com/modcluster/mod_cluster/pull/156  (was: https://github.com/modcluster/mod_cluster/pull/155)


> mod_cluster undersizes the connection pool on httpd 2.2
> -------------------------------------------------------
>
>                 Key: MODCLUSTER-466
>                 URL: https://issues.jboss.org/browse/MODCLUSTER-466
>             Project: mod_cluster
>          Issue Type: Bug
>            Reporter: Aaron Ogburn
>            Assignee: Jean-Frederic Clere
>
> 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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