apache+tomcat集群连接故障！

nianzong

网站突然瞬断，重启apache很快又不行，单独访问tomcat可以，帮忙分析下会是哪些地方的原因。apache为RHEL4U4，启用了iptables（网站断时禁用了故障依旧），tomcat为windows 2003，以前也有这样的日志，但似乎没有太大的影响。最近几日出现几次这样的现象，网站突然之间不能访问，在相应的时间段里有这样的日志。
（网站不能访问时，apache仍在监听，apache server的cpu，memory正常）


[Thu Mar 06 13:02:22.756 2008] [23123:3052538800] [info] ajp_process_callback::jk_ajp_common.c (1511): Writing to client aborted or
client network problems
[Thu Mar 06 13:02:22.756 2008] [23123:3052538800] [info] ajp_service::jk_ajp_common.c (1996): (tomcat2) request failed, because of c
lient write error without recovery in send loop attempt=0
[Thu Mar 06 13:02:22.884 2008] [23123:3052538800] [info] service::jk_lb_worker.c (1092): unrecoverable error 200, request failed. Cl
ient failed in the middle of request, we can't recover to another instance.
[Thu Mar 06 13:02:22.884 2008] [23123:3052538800] [info] jk_handler::mod_jk.c (2270): Aborting connection for worker=controller
[Thu Mar 06 13:07:25.039 2008] [23633:3052538800] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (966): (tomcat2) can't rec
eive the response message from tomcat, network problems or tomcat (192.168.1.3:8010) is down (errno=104)
[Thu Mar 06 13:07:25.039 2008] [23633:3052538800] [error] ajp_get_reply::jk_ajp_common.c (165: (tomcat2) Tomcat is down or refused
connection. No response has been sent to the client (yet)
[Thu Mar 06 13:07:25.039 2008] [23633:3052538800] [info] ajp_service::jk_ajp_common.c (2046): (tomcat2) receiving from tomcat failed
, recoverable operation attempt=0
[Thu Mar 06 13:07:25.039 2008] [23633:3052538800] [info] ajp_service::jk_ajp_common.c (2085): (tomcat2) sending request to tomcat fa
iled,  recoverable operation attempt=1
[Thu Mar 06 13:07:25.040 2008] [23633:3052538800] [error] ajp_connection_tcp_get_message::jk_ajp_common.c (966): (tomcat2) can't rec
eive the response message from tomcat, network problems or tomcat (192.168.1.3:8010) is down (errno=104)
[Thu Mar 06 13:07:25.040 2008] [23633:3052538800] [error] ajp_get_reply::jk_ajp_common.c (165: (tomcat2) Tomcat is down or refused
connection. No response has been sent to the client (yet)
[Thu Mar 06 13:07:25.040 2008] [23633:3052538800] [info] ajp_service::jk_ajp_common.c (2046): (tomcat2) receiving from tomcat failed
, recoverable operation attempt=1
[Thu Mar 06 13:07:25.040 2008] [23633:3052538800] [info] ajp_service::jk_ajp_common.c (2085): (tomcat2) sending request to tomcat fa
iled,  recoverable operation attempt=2
[Thu Mar 06 13:07:25.040 2008] [23633:3052538800] [error] ajp_service::jk_ajp_common.c (2097): (tomcat2) Connecting to tomcat failed
. Tomcat is probably not started or is listening on the wrong port
[Thu Mar 06 13:07:25.040 2008] [23633:3052538800] [info] service::jk_lb_worker.c (112: service failed, worker tomcat2 is in error
state

nianzong

自己顶吧，这么久都没人回，都不知道么，太失望！

yuio654

哥们，找到原因了吗？

xxt_emo17

静态资源也用apache打不开么？

zxf5420

跟下贴，我的服务也是一样，几乎每天都要重启一次，搞得是烦死了，有些人提议添加的参数，添加进去了还是没效果。现在把mod_jk.log里面的错误贴出来，让高手帮忙找下解决的方法。
[Fri Apr 13 16:25:39 2012] [1405:1309362496] [info] ajp_service::jk_ajp_common.c (2543): (tomcat sending request to tomcat failed (unrecoverable), because of client write error (attempt=1)
[Fri Apr 13 16:25:39 2012] [1405:1309362496] [info] service::jk_lb_worker.c (138: service failed, worker tomcat8 is in local error state
[Fri Apr 13 16:25:39 2012] [1405:1309362496] [info] service::jk_lb_worker.c (1407): unrecoverable error 200, request failed. Client failed in the middle of request, we can't recover to another instance.
[Fri Apr 13 16:25:39 2012] [1405:1309362496] [info] jk_handler::mod_jk.c (2620): Aborting connection for worker=tomcatlb
[Fri Apr 13 16:25:55 2012] [1292:1152465216] [info] ajp_process_callback::jk_ajp_common.c (1885): Writing to client aborted or client network problems
[Fri Apr 13 16:25:55 2012] [1292:1152465216] [info] ajp_service::jk_ajp_common.c (2543): (tomcat sending request to tomcat failed (unrecoverable), because of client write error (attempt=1)
[Fri Apr 13 16:25:55 2012] [1292:1152465216] [info] service::jk_lb_worker.c (138: service failed, worker tomcat8 is in local error state
[Fri Apr 13 16:25:55 2012] [1292:1152465216] [info] service::jk_lb_worker.c (1407): unrecoverable error 200, request failed. Client failed in the middle of request, we can't recover to another instance.
[Fri Apr 13 16:25:55 2012] [1292:1152465216] [info] jk_handler::mod_jk.c (2620): Aborting connection for worker=tomcatlb
[Fri Apr 13 16:26:58 2012] [1440:1287461184] [info] ajp_send_request::jk_ajp_common.c (1567): (tomcat all endpoints are disconnected, detected by connect check (1), cping (0), send (0)
[Fri Apr 13 16:27:18 2012] [1333:1126762816] [info] ajp_process_callback::jk_ajp_common.c (1885): Writing to client aborted or client network problems
[Fri Apr 13 16:27:18 2012] [1333:1126762816] [info] ajp_service::jk_ajp_common.c (2543): (tomcat6) sending request to tomcat failed (unrecoverable), because of client write error (attempt=1)
[Fri Apr 13 16:27:18 2012] [1333:1126762816] [info] service::jk_lb_worker.c (138: service failed, worker tomcat6 is in local error state
[Fri Apr 13 16:27:18 2012] [1333:1126762816] [info] service::jk_lb_worker.c (1407): unrecoverable error 200, request failed. Client