Hi, On 25.11.2009 17:56, Steve Neidinger wrote: > Greetings, > > I'm setting up a new apache system using mod_jk to talk to 8 JBoss > instances on a separate server and I'm seeing a lot of entries in the > mod_jk.log that I find troubling. Here is a snippet: > > [Wed Nov 25 10:32:31.727 2009] [9435:2088340368] [info] > ajp_send_request::jk_ajp_common.c (1402): > (jbossjvmnumber8server-app01) failed sending request, socket -1 > prepost cping/cpong failure (errno=0) > [Wed Nov 25 10:32:31.755 2009] [8698:2812140432] [info] > ajp_send_request::jk_ajp_common.c (1402): > (jbossjvmnumber2server-app01) failed sending request, socket -1 > prepost cping/cpong failure (errno=0) > [Wed Nov 25 10:32:31.779 2009] [9229:2885569424] [info] > ajp_send_request::jk_ajp_common.c (1402): > (jbossjvmnumber5server-app01) failed sending request, socket -1 > prepost cping/cpong failure (errno=0) > [Wed Nov 25 10:32:31.797 2009] [9538:2610826128] [warn] > ajp_handle_cping_cpong::jk_ajp_common.c (883): awaited reply cpong, > received 3 instead > [Wed Nov 25 10:32:31.848 2009] [9849:2140789648] [info] > ajp_send_request::jk_ajp_common.c (1402): > (jbossjvmnumber1server-app01) failed sending request, socket -1 > prepost cping/cpong failure (errno=0) > [Wed Nov 25 10:32:31.868 2009] [8691:2948508560] [info] > ajp_send_request::jk_ajp_common.c (1402): > (jbossjvmnumber1server-app01) failed sending request, socket -1 > prepost cping/cpong failure (errno=0) > [Wed Nov 25 10:32:31.869 2009] [9229:2990467984] [info] > ajp_send_request::jk_ajp_common.c (1402): > (jbossjvmnumber1server-app01) failed sending request, socket -1 > prepost cping/cpong failure (errno=0) > [Wed Nov 25 10:32:31.869 2009] [9229:2990467984] [info] > ajp_send_request::jk_ajp_common.c (1456): > (jbossjvmnumber1server-app01) all endpoints are disconnected, detected > by connect check (0), cping (1), send (0) > [Wed Nov 25 10:32:31.873 2009] [9538:2526907280] [warn] > ajp_handle_cping_cpong::jk_ajp_common.c (883): awaited reply cpong, > received 3 instead > [Wed Nov 25 10:32:31.913 2009] [8689:2035891088] [warn] > ajp_handle_cping_cpong::jk_ajp_common.c (883): awaited reply cpong, > received 3 instead > [Wed Nov 25 10:32:31.916 2009] [8689:2969488272] [warn] > ajp_handle_cping_cpong::jk_ajp_common.c (883): awaited reply cpong, > received 3 instead > [Wed Nov 25 10:32:31.918 2009] [8698:2298137488] [warn] > ajp_handle_cping_cpong::jk_ajp_common.c (883): awaited reply cpong, > received 3 instead > [Wed Nov 25 10:32:31.933 2009] [9952:2591853456] [warn] > ajp_handle_cping_cpong::jk_ajp_common.c (883): awaited reply cpong, > received 3 instead > [Wed Nov 25 10:32:31.938 2009] [9538:2610826128] [info] > ajp_send_request::jk_ajp_common.c (1402): > (jbossjvmnumber4server-app01) failed sending request, socket -1 > prepost cping/cpong failure (errno=0) > [Wed Nov 25 10:32:31.938 2009] [9538:2610826128] [info] > ajp_send_request::jk_ajp_common.c (1456): > (jbossjvmnumber4server-app01) all endpoints are disconnected, detected > by connect check (0), cping (1), send (0) > [Wed Nov 25 10:32:32.002 2009] [8764:2130299792] [warn] > ajp_handle_cping_cpong::jk_ajp_common.c (883): awaited reply cpong, > received 3 instead > [Wed Nov 25 10:32:32.030 2009] [9538:2526907280] [info] > ajp_send_request::jk_ajp_common.c (1402): > (jbossjvmnumber4server-app01) failed sending request, socket -1 > prepost cping/cpong failure (errno=0) > [Wed Nov 25 10:32:32.030 2009] [9538:2526907280] [warn] > ajp_handle_cping_cpong::jk_ajp_common.c (883): awaited reply cpong, > received 3 instead > [Wed Nov 25 10:32:32.068 2009] [8689:2035891088] [info] > ajp_send_request::jk_ajp_common.c (1402): > (jbossjvmnumber4server-app01) failed sending request, socket -1 > prepost cping/cpong failure (errno=0) > > Here is a portion of my worker.properties file: > > # Define the common template > worker.template.type=ajp13 > worker.template.port=8009 > worker.template.lbfactor=1 > worker.template.socket_connect_timeout=5000 > worker.template.connection_pool_timeout=600 > worker.template.ping_mode=A > worker.template.ping_timeout=10000 > worker.template.reply_timeout=300000 > worker.template.fail_on_status=404,500,503 > worker.template.recovery_options=7 > worker.template.connection_pool_minsize=0 > worker.template.socket_keepalive=True > worker.template.retries=2 > > I've googled and can't find any specific help on these errors. > Hopefully someone can help on this.
I guess this is a known JBoss bug. I had to analyze it recently. The JBoss server in that case sended an additional response packet of size 0 after the final response packet. That's a protocol violation. When mod_jk sends a cping in front of the next request, JBoss answers correctly with a cpong, but mod_jk reading from the network buffer first gets the empty response packet left over from the previous response and complains, because it's not the cpong packet. You should file a bug at JBoss for this. Regards, Rainer --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
