Hi all I ran into an issue with the apr-util memcache code [1] used by Subversion that severely affects use of memcache on a high load Subversion server. apr_memcache_server_create is not translating the seconds based TTL passed in to the microseconds based TTL used by the resource pool, resulting in connections to memcache being killed too quickly (after 50 microseconds in the case of Subversion). This quickly leads to socket exhaustion (too many connections in TIME_WAIT) under a heavy load (e.g. a room full of developers doing git svn clones).
It's not a Subversion issue, but you may want to be aware of it as it directly affects on of your features. tim [1] https://issues.apache.org/bugzilla/show_bug.cgi?id=51511
