To add to this, apache seems to be hung up as well as it can't even serve regular non mod_jk content but there's no error messages.
Cheers, Charles On Mon, Oct 29, 2012 at 9:37 AM, Charles Richard < charle...@thelearningbar.com> wrote: > Hi, > > I had a thread a while back but my configuration has changed and so has my > issue, so hence a new thread. > > My config: > > CentOS 5.8 > Apache 2.23 > 3 tomcat instances (6.0.30) with each ajp_port with a connectionTimeout > setting of 180000 > mod_jk 1.2.37 > > workers.properties: > > # Define 1 real worker using ajp13 > worker.list=worker1, worker2, worker3, lbworker > > # Set properties for worker1 (ajp13) > worker.worker1.type=ajp13 > worker.worker1.host=localhost > worker.worker1.port=8009 > worker.worker1.connection_pool_timeout=180 > worker.worker1.lbfactor=1 > worker.worker1.ping_mode=A > worker.worker1.socket_keepalive=true > > # Set properties for worker2 (ajp13) > worker.worker2.type=ajp13 > worker.worker2.host=localhost > worker.worker2.port=8010 > worker.worker2.connection_pool_timeout=180 > worker.worker2.lbfactor=1 > worker.worker2.ping_mode=A > worker.worker2.socket_keepalive=true > > # Set properties for worker3 (ajp13) > worker.worker3.type=ajp13 > worker.worker3.host=localhost > worker.worker3.port=8011 > worker.worker3.connection_pool_timeout=180 > worker.worker3.lbfactor=1 > worker.worker3.ping_mode=A > worker.worker3.socket_keepalive=true > > worker.lbworker.type=lb > worker.lbworker.balance_workers=worker1, worker2, worker3 > worker.lbworker.sticky_session=True > > I'm doing some performance tuning on our application and noticed a couple > of days ago that which a load of 1500 users, my threads in VisualVM would > turn white in a "off/unknown state" (can send a snapshot of this on > demand). Since then, I added the ping_mode and socket_keepalive setting in > my workers.properties file but that didn't seem to make a difference. All > i see in my mod_jk log is this: > > [Mon Oct 29 09:16:56 2012] [12205:47535048426352] [info] > ajp_handle_cping_cpong::jk_ajp_common.c (913): timeout in reply cpong > [Mon Oct 29 09:16:56 2012] [12205:47535048426352] [info] > ajp_maintain::jk_ajp_common.c (3289): (worker2) failed sending request, > socket -1 keepalive cping/cpong failure (errno=24) > [Mon Oct 29 09:18:36 2012] [10542:47535048426352] [info] > ajp_handle_cping_cpong::jk_ajp_common.c (913): timeout in reply cpong > [Mon Oct 29 09:18:36 2012] [10542:47535048426352] [info] > ajp_maintain::jk_ajp_common.c (3289): (worker2) failed sending request, > socket -1 keepalive cping/cpong failure (errno=24) > > Any idea what could be going on? > > Thanks, > Charles >
