Yeh, I've worked out what was happening, seems that tomcat was being
killed by the system running out of memory, which was happening
without any log messages on the system at all, which was rather
unhelpful and left me completely stumped for a while. However adding
extra swap space and memory seem to fix the problem.
Thanks anyway for the reply
Quoting Rainer Jung <rainer.j...@kippdata.de>:
It seems it is not a mod_jk problem. mod_jk never shuts down Tomcat, but
obviously your Tomcat shuts down during processing the request.
I would
- update Tomcat *and* the service wrapper (jdvc) to the most recent
patch update (e.g. Tomcat 5.5.33).
- run Tomcat once without the service wrapper to decide, whether the
problem comes from the wrapper or from Tomcat respectively your web
application.
Regards,
Rainer
On 04.07.2011 18:27, mar...@alt-v.co.uk wrote:
Hi
I have a problem when uploading files to tomcat through mod_jk. When
uploading smaller files (<100kb) everything seems to work fine, but when
uploading files of about 1.5Mb it seems as if the server is restarting
and causing a 503 error. I've tried modifying timeouts in both apache
and tomcat, still i get this output on the catalina.err file: (sorry for
long log files)
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:31 7211 jsvc.exec error: Shutdown or reload already
scheduled
04/07/2011 15:19:32 7210 jsvc.exec error: Service killed by signal 9
Jul 4, 2011 3:19:35 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal
performance in production environments was not found on the
java.library.path:
/usr/local/jdk/jre/lib/i386/client:/usr/local/jdk/jre/lib/i386:/usr/java/packages/lib/i386:/lib:/usr/lib
Jul 4, 2011 3:19:35 PM org.apache.coyote.http11.Http11BaseProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Jul 4, 2011 3:19:35 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 426 ms
Jul 4, 2011 3:19:35 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Jul 4, 2011 3:19:35 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.33
Jul 4, 2011 3:19:35 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Jul 4, 2011 3:19:35 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Jul 4, 2011 3:19:36 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Jul 4, 2011 3:19:36 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Jul 4, 2011 3:19:36 PM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Jul 4, 2011 3:19:37 PM org.apache.coyote.http11.Http11BaseProtocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Jul 4, 2011 3:19:37 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Jul 4, 2011 3:19:37 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/246 config=null
Jul 4, 2011 3:19:37 PM org.apache.catalina.storeconfig.StoreLoader load
INFO: Find registry server-registry.xml at classpath resource
Jul 4, 2011 3:19:37 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 2419 ms
----------
The error from the apache mod_jk.log file is:
[Mon Jul 04 15:18:09 2011] [7413:3080754960] [info] init_jk::mod_jk.c
(3189): mod_jk/1.2.30 initialized
[Mon Jul 04 15:19:32 2011] [7460:3080754960] [info]
ajp_connection_tcp_get_message::jk_ajp_common.c (1223): (ajp13) can't
receive the response header message from tomcat, tomcat (127.0.0.1:8009)
has forced a connection close for socket 2
7
[Mon Jul 04 15:19:32 2011] [7460:3080754960] [error]
ajp_get_reply::jk_ajp_common.c (2055): (ajp13) Tomcat is down or refused
connection. No response has been sent to the client (yet)
[Mon Jul 04 15:19:32 2011] [7460:3080754960] [error]
ajp_service::jk_ajp_common.c (2533): (ajp13) sending request to tomcat
failed (unrecoverable), (attempt=1)
[Mon Jul 04 15:19:32 2011] ajp13 barcodes3.alt-v.co.uk 27.361459
[Mon Jul 04 15:19:32 2011] [7460:3080754960] [info] jk_handler::mod_jk.c
(2618): Service error=0 for worker=ajp13
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [info]
jk_open_socket::jk_connect.c (622): connect to 127.0.0.1:8009 failed
(errno=111)
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [info]
ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening socket to
(127.0.0.1:8009) (errno=111)
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [error]
ajp_send_request::jk_ajp_common.c (1585): (ajp13) connecting to backend
failed. Tomcat is probably not started or is listening on the wrong port
(errno=111)
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [info]
ajp_service::jk_ajp_common.c (2540): (ajp13) sending request to tomcat
failed (recoverable), because of error during request sending (attempt=1)
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [info]
jk_open_socket::jk_connect.c (622): connect to 127.0.0.1:8009 failed
(errno=111)
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [info]
ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening socket to
(127.0.0.1:8009) (errno=111)
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [error]
ajp_send_request::jk_ajp_common.c (1585): (ajp13) connecting to backend
failed. Tomcat is probably not started or is listening on the wrong port
(errno=111)
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [info]
ajp_service::jk_ajp_common.c (2540): (ajp13) sending request to tomcat
failed (recoverable), because of error during request sending (attempt=2)
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [error]
ajp_service::jk_ajp_common.c (2559): (ajp13) connecting to tomcat failed.
[Mon Jul 04 15:19:33 2011] ajp13 barcodes3.alt-v.co.uk 0.116266
[Mon Jul 04 15:19:33 2011] [7464:3080754960] [info] jk_handler::mod_jk.c
(2618): Service error=-3 for worker=ajp13
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [info]
jk_open_socket::jk_connect.c (622): connect to 127.0.0.1:8009 failed
(errno=111)
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [info]
ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening socket to
(127.0.0.1:8009) (errno=111)
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [error]
ajp_send_request::jk_ajp_common.c (1585): (ajp13) connecting to backend
failed. Tomcat is probably not started or is listening on the wrong port
(errno=111)
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [info]
ajp_service::jk_ajp_common.c (2540): (ajp13) sending request to tomcat
failed (recoverable), because of error during request sending (attempt=1)
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [info]
jk_open_socket::jk_connect.c (622): connect to 127.0.0.1:8009 failed
(errno=111)
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [info]
ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening socket to
(127.0.0.1:8009) (errno=111)
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [error]
ajp_send_request::jk_ajp_common.c (1585): (ajp13) connecting to backend
failed. Tomcat is probably not started or is listening on the wrong port
(errno=111)
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [info]
ajp_service::jk_ajp_common.c (2540): (ajp13) sending request to tomcat
failed (recoverable), because of error during request sending (attempt=2)
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [error]
ajp_service::jk_ajp_common.c (2559): (ajp13) connecting to tomcat failed.
[Mon Jul 04 15:19:34 2011] ajp13 barcodes3.alt-v.co.uk 0.100502
[Mon Jul 04 15:19:34 2011] [7467:3080754960] [info] jk_handler::mod_jk.c
(2618): Service error=-3 for worker=ajp13
------
So I think its restarting the server for some reason. As far as I can
tell I'm not getting any errors on the startup of the server. Is there
any way to find out more about whats happening and maybe fix this
problem. My workers.conf is:
worker.ajp13.port=8009
worker.ajp13.host=localhost
worker.ajp13.type=ajp13
#
# Specifies the load balance factor when used with
# a load balancing worker.
# Note:
# ----> lbfactor must be > 0
# ----> Low lbfactor means less work done by the worker.
worker.ajp13.lbfactor=1
#
# Specify the size of the open connection pool.
#worker.ajp13.connection_pool_size
connection_pool_timeout=600
connectionTimeout=600000
#
The connector for the server is:
<Connector port="8009"
maxProcessors="50" enableLookups="false"
disableUploadTimeout="true" protocol="AJP/1.3"
connectionTimeout="180000" maxSavePostSize="-1" maxPostSize="0" />
I would post the rest of the file if its needed, but i think thats the
most important part.
The jk.conf from apache is:
JkWorkersFile /usr/local/jakarta/tomcat/conf/workers.properties
JkLogFile /usr/local/apache/logs/mod_jk.log
JkLogLevel info
JkWatchdogInterval 600
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
JkRequestLogFormat "%w %V %T"
I'm using tomcat 5.5, it would be difficult for me to upgrade. Can
anyone point out anything that I might be doing wrong, or if you need
any more info let me know
Thanks
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