Is each of the 10 tomcats on a seperate physical machine?
What are your max thread settings in Tomcat?
Are your tomcat machines CPU bound or I/O bound under full load?
Alex
On 7/9/06, Edmon Begoli <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> First of all - thanks Rainer for willing to look into this issue.
>
> Environment description:
>
> Web Server: Apache 2.0.52
> mod_jk: 1.2.15
> OS: RedHat ES 4.2
> App. Server: Tomcat 5.5.15
>
> Cluster topology: 4 webservers with mod_jk doing sticky loadbalancing
into
> 10 tomcats
>
> MOD_JK Configuration: Pretty much basic mod_jk and Tomcat settings for
> AJP13
>
> Description of the issue:
>
> Under very heavy loads for our standards (about thousand of concurrent
> users)
> we start seeing errors (listed at end botton of this e-mail) in the
mod_jk
> error log.
>
> Our concern is mod_jk behavior on the web server. We closely monitor
> apache
> and Apache itself is not under heavy stress. However, shortly after we
> start
> seeing these messages in the mod_jk's error log, web server becomes
> unresponsive
> and we have to re-start it.
>
> While the web server server is unresponsive we monitor 8009 port -
nothing
> is going on it.
>
> We monitor Tomcats and they are fine.
>
> As soon as we re-start web servers traffic resumes. Then under heavy
loads
> things break again
>
> We are planning on increasing the number of max threads on the Tomcats'
> AJP connector to imrpove the throughput of the Tomcats.
>
> However, our concern is with the web server side lock ups. It seems that
> mod_jk cannot
> recover after this oversaturation.
>
>
> TAIL -F FROM THE MOD_JK LOG RIGHT BEFORE IT "DIES"
> __________________________________________________
>
>
> [Fri Jul 07 09:59:43 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:43 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:44 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:44 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:44 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:44 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:44 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:44 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:44 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:44 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:44 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:44 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:44 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:44 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:45 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:45 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:45 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:45 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:46 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:46 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:46 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:46 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:46 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:46 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:46 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:46 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:47 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:47 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:47 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:47 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:48 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (
> 10.0.110.16:8009), err=-110
>
> [Fri Jul 07 09:59:48 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:48 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:48 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:49 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:49 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:49 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:49 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=3
>
> [Fri Jul 07 09:59:49 2006] [error] ajp_service::jk_ajp_common.c (1758):
> Error connecting to tomcat. Tomcat is probably not started or is
listening
> on the wrong port. worker=jvm18 failed
>
> [Fri Jul 07 09:59:49 2006] [info] service::jk_lb_worker.c (696):
service
> failed, worker jvm18 is in error state
> [Fri Jul 07 09:59:49 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:49 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:49 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:49 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=3
>
> [Fri Jul 07 09:59:49 2006] [error] ajp_service::jk_ajp_common.c (1758):
> Error connecting to tomcat. Tomcat is probably not started or is
listening
> on the wrong port. worker=jvm17 failed
>
> [Fri Jul 07 09:59:49 2006] [info] service::jk_lb_worker.c (696):
service
> failed, worker jvm17 is in error state
> [Fri Jul 07 09:59:49 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:49 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:49 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:49 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:49 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:49 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:49 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:49 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:51 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:51 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:51 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:51 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:51 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:51 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:51 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:51 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:52 2006] [info] jk_open_socket::jk_connect.c (444):
> connect to 10.0.110.11:8009 failed with errno=110
>
> [Fri Jul 07 09:59:52 2006]
> [info] ajp_connect_to_endpoint::jk_ajp_common.c
> (889): Failed opening socket to ( 10.0.110.11:8009) with (errno=110)
>
> [Fri Jul 07 09:59:52 2006] [info] ajp_send_request::jk_ajp_common.c
> (1248):
> Error connecting to the Tomcat process.
> [Fri Jul 07 09:59:52 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=3
>
> [Fri Jul 07 09:59:52 2006] [error] ajp_service::jk_ajp_common.c (1758):
> Error connecting to tomcat. Tomcat is probably not started or is
listening
> on the wrong port. worker=jvm11 failed
>
> [Fri Jul 07 09:59:52 2006] [info] service::jk_lb_worker.c (696):
service
> failed, worker jvm11 is in error state
> [Fri Jul 07 09:59:52 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:52 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:52 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:52 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:53 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:53 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:53 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:53 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:53 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:53 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:53 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:53 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:53 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:53 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:53 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:53 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:53 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:53 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:53 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:53 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:54 2006] [info] jk_open_socket::jk_connect.c (444):
> connect to 10.0.110.11:8009 failed with errno=110
>
> [Fri Jul 07 09:59:54 2006]
> [info] ajp_connect_to_endpoint::jk_ajp_common.c
> (889): Failed opening socket to ( 10.0.110.11:8009) with (errno=110)
>
> [Fri Jul 07 09:59:54 2006] [info] ajp_send_request::jk_ajp_common.c
> (1248):
> Error connecting to the Tomcat process.
> [Fri Jul 07 09:59:54 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=3
>
> [Fri Jul 07 09:59:54 2006] [error] ajp_service::jk_ajp_common.c (1758):
> Error connecting to tomcat. Tomcat is probably not started or is
listening
> on the wrong port. worker=jvm11 failed
>
> [Fri Jul 07 09:59:54 2006] [info] service::jk_lb_worker.c (696):
service
> failed, worker jvm11 is in error state
> [Fri Jul 07 09:59:56 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:56 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:56 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:56 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:56 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:56 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:56 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:56 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:56 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:56 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:56 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:56 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:56 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:56 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:56 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:56 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=3
>
> [Fri Jul 07 09:59:56 2006] [error] ajp_service::jk_ajp_common.c (1758):
> Error connecting to tomcat. Tomcat is probably not started or is
listening
> on the wrong port. worker=jvm18 failed
>
> [Fri Jul 07 09:59:56 2006] [info] service::jk_lb_worker.c (696):
service
> failed, worker jvm18 is in error state
> [Fri Jul 07 09:59:57 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:57 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:57 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:57 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:57 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:57 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:57 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 09:59:57 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 09:59:58 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 09:59:58 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 09:59:58 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 09:59:58 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:00 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:00 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:00 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:00 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:01 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:01 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:01 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 10:00:01 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:03 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:03 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:03 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 10:00:03 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:04 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:04 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:04 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 10:00:04 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:05 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:05 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:05 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 10:00:05 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:06 2006] [info] jk_open_socket::jk_connect.c (444):
> connect to 10.0.110.17:8009 failed with errno=110
>
> [Fri Jul 07 10:00:06 2006]
> [info] ajp_connect_to_endpoint::jk_ajp_common.c
> (889): Failed opening socket to ( 10.0.110.17:8009) with (errno=110)
>
> [Fri Jul 07 10:00:06 2006] [info] ajp_send_request::jk_ajp_common.c
> (1248):
> Error connecting to the Tomcat process.
> [Fri Jul 07 10:00:06 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:06 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:06 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:06 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=0
>
> [Fri Jul 07 10:00:06 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:08 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:08 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:08 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:08 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:09 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:09 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:09 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:09 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:10 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:10 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:10 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:10 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:10 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:10 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:10 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:10 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:14 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:14 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:14 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:14 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=3
>
> [Fri Jul 07 10:00:14 2006] [error] ajp_service::jk_ajp_common.c (1758):
> Error connecting to tomcat. Tomcat is probably not started or is
listening
> on the wrong port. worker=jvm18 failed
>
> [Fri Jul 07 10:00:14 2006] [info] service::jk_lb_worker.c (696):
service
> failed, worker jvm18 is in error state
> [Fri Jul 07 10:00:14 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:14 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:14 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:14 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:14 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:14 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:14 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=1
>
> [Fri Jul 07 10:00:14 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:15 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (<IP
> REMOVED>:8009), err=-110
>
> [Fri Jul 07 10:00:15 2006] [error] ajp_get_reply::jk_ajp_common.c
(1503):
> Tomcat is down or refused connection. No response has been sent to the
> client (yet)
>
> [Fri Jul 07 10:00:15 2006] [info] ajp_service::jk_ajp_common.c (1721):
> Receiving from tomcat failed, recoverable operation attempt=2
>
> [Fri Jul 07 10:00:15 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=3
>
> [Fri Jul 07 10:00:15 2006] [error] ajp_service::jk_ajp_common.c (1758):
> Error connecting to tomcat. Tomcat is probably not started or is
listening
> on the wrong port. worker=jvm12 failed
>
> [Fri Jul 07 10:00:15 2006] [info] service::jk_lb_worker.c (696):
service
> failed, worker jvm12 is in error state
> [Fri Jul 07 10:00:15 2006] [error]
> ajp_connection_tcp_get_message::jk_ajp_common.c (961): Can't receive the
> response message from tomcat, network problems or tomcat is down (
> 10.0.110.17:8009), err=-110
>
> [Fri Jul 07 09:59:45 2006] [info] ajp_service::jk_ajp_common.c (1749):
> Sending request to tomcat failed, recoverable operation attempt=1
>
>
> In reply to:
>
> if you would give detailed information about your problems, we could
> advise you, whether it is known, and whether it has been fixed in some
> version.
>
> The latest release is 1.2.15, we tried to produce a 1.2.16 release, that
> but it has now been withdrawn because of a regression bug. Another
> release (1.2.17) will be tried next week.
>
> Rainer
>
> Edmon Begoli schrieb:
> > We are running into some serious load and scalability issues related
to
> the
> > mod_jk.
> >
> > I read some threads that indicate that these issues may have been
fixed
> in
> > post 1.2.15 version.
> >
> > Available downoalds are only for 1.2.15.
> >
> > Some websites are indicating that the latest one should be 1.2.16.
> >
> > Can someone please tell me what is the latest version of mod_jk that
we
> > should be using.
> >
> >
> > We are running 1.2.15 complied on RedHat ES 4.2.x. with Apache 2.0.52
> >
>
>
> --
> Thank you,
> Edmon
>
>
------=_Part_105786_9330282.1152503998253--
