Hi all, Our architecture consists of 2 JBoss 4.0.2.GA servers on Red Hat AS 4 UP7 and one Apache 2.0.52 node with mod_jk-ap20-1.2.19-1jpp_1rh on a Red Hat AS4 UP4. We ran into this issue several month ago and we cannot find a solution yet - from the mod_jk.log: [Mon Jan 19 14:10:58 2009] [11956:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (fe01) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:00 2009] [11517:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (rllas02) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:04 2009] [11654:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (rllas02) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:08 2009] [11515:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (rllas02) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:10 2009] [11915:59072] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (947): (fe01) can't receive the response message from tomcat, network problems or tomcat is down (10.2.70.55:8 009), err=-104 [Mon Jan 19 14:11:10 2009] [11915:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (fe01) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:12 2009] [11605:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (rllas02) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:15 2009] [11938:59072] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (947): (fe01) can't receive the response message from tomcat, network problems or tomcat is down (10.2.70.55:8 009), err=-104 [Mon Jan 19 14:11:15 2009] [11938:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (fe01) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:21 2009] [11787:59072] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (947): (fe01) can't receive the response message from tomcat, network problems or tomcat is down (10.2.70.55:8 009), err=-104 [Mon Jan 19 14:11:21 2009] [11787:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (fe01) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:24 2009] [11902:59072] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (947): (fe01) can't receive the response message from tomcat, network problems or tomcat is down (10.2.70.55:8 009), err=-104 [Mon Jan 19 14:11:24 2009] [11902:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (fe01) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:25 2009] [11844:59072] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (947): (fe01) can't receive the response message from tomcat, network problems or tomcat is down (10.2.70.55:8 009), err=-104 [Mon Jan 19 14:11:25 2009] [11844:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (fe01) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:33 2009] [11608:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (rllas02) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:37 2009] [11808:59072] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (947): (fe01) can't receive the response message from tomcat, network problems or tomcat is down (10.2.70.55:8 009), err=-104 [Mon Jan 19 14:11:37 2009] [11808:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (fe01) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:41 2009] [11637:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (rllas02) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:44 2009] [12009:59072] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (947): (fe01) can't receive the response message from tomcat, network problems or tomcat is down (10.2.70.55:8 009), err=-104 [Mon Jan 19 14:11:44 2009] [12009:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (fe01) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:45 2009] [11533:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (rllas02) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:47 2009] [11834:59072] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (947): (fe01) can't receive the response message from tomcat, network problems or tomcat is down (10.2.70.55:8 009), err=-104 [Mon Jan 19 14:11:47 2009] [11834:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (fe01) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:49 2009] [11562:59072] [error] ajp_get_reply::jk_ajp_common.c (1536): (rllas02) Tomcat is down or refused connection. No response has been sent to the client (yet) [Mon Jan 19 14:11:49 2009] [11562:59072] [error] ajp_service::jk_ajp_common.c (1879): (rllas02) Connecting to tomcat failed. Tomcat is probably not started or is listening on the wrong port [Mon Jan 19 14:11:51 2009] [12003:59072] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (947): (fe01) can't receive the response message from tomcat, network problems or tomcat is down (10.2.70.55:8 009), err=-104 workers.properties: # Cluster members worker.as01.host=10.2.xxx.xxx worker.as01.port=8009 worker.as01.type=ajp13 worker.as02.host=10.2.xxx.xxx worker.as02.port=8009 worker.as02.type=ajp13 worker.cluster01.type=lb worker.cluster01.balanced_workers=as01,as02 worker.status.type=status Only a restart of the two AS restores the correct operation. I'll appreciate any help. thanks in advance Ezra Di Biase View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4204325#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...