filedescriptor limit should account for notification pipes
filedescriptor limit should account for notification pipes

couchbase/memcached,daverigby/kv_engine,zbase/memcached,owendCB/memcached,Metaswitch/memcached,abhinavdangeti/memcached,jimwwalker/memcached,abhinavdangeti/memcached,Metaswitch/memcached,daverigby/memcached,Metaswitch/memcached,couchbase/memcached,mrkwse/memcached,couchbase/memcached,zbase/memcached,cloudrain21/memcached-1,daverigby/memcached,daverigby/kv_engine,jimwwalker/memcached,zbase/memcached,daverigby/kv_engine,abhinavdangeti/memcached,Metaswitch/memcached,abhinavdangeti/memcached,mrkwse/memcached,couchbase/memcached,owendCB/memcached,cloudrain21/memcached-1,zbase/memcached,mrkwse/memcached,zbase/memcached,owendCB/memcached,daverigby/memcached,mrkwse/memcached,daverigby/kv_engine,abhinavdangeti/memcached,jimwwalker/memcached,cloudrain21/memcached-1,daverigby/memcached,owendCB/memcached,Metaswitch/memcached,cloudrain21/memcached-1