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| | Apache2 with JK2 with Tomcat5 multiple sendings from Apache to
Tomcat5 | Apache2 with JK2 with Tomcat5 multiple sendings from Apache to
Tomcat5 2004-01-16 - By Oscar Serrano
Back
Hi:
I've installed withou problems an Apache talking to a Tomcat via the jk2
connector.
Everything seems to work fine but sometimes I click on a link and I get no
response. Then I take a look at the logs and I see a very strange thing.
Apache is sending the request to Tomcat many times. Here is the log of
mod_jk.log:
First you can see what is a normal connection:
[Fri Jan 16 17:14:00 2004] [jk_uri_worker_map.c (486)]: Into
jk_uri_worker_map_t::map_uri_to_worker
[Fri Jan 16 17:14:00 2004] [jk_uri_worker_map.c (500)]: Attempting to map
URI '/jsp-examples/jsp2/simpletag/book.jsp'
[Fri Jan 16 17:14:00 2004] [jk_uri_worker_map.c (524)]:
jk_uri_worker_map_t::map_uri_to_worker, Found a context match worker_principal
[Fri Jan 16 17:14:00 2004] [mod_jk.c (1717)]: Into handler r->proxyreq=0
r->handler=jakarta-servlet r->notes=135484688 worker=worker_pr
[Fri Jan 16 17:14:00 2004] [jk_worker.c (132)]: Into
wc_get_worker_for_name worker_principal
[Fri Jan 16 17:14:00 2004] [jk_worker.c (136)]: wc_get_worker_for_name,
done found a worker
[Fri Jan 16 17:14:00 2004] [mod_jk.c (505)]: agsp=80 agsn=10.0.0.102
hostn=10.0.0.102 shostn=www.androlinux.com cbsport=80 sport=80
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (1686)]: Into
jk_worker_t::get_endpoint
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (1319)]: Into
jk_endpoint_t::service
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (295)]: Into
ajp_marshal_into_msgb
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (463)]: ajp_marshal_into_msgb
- Done
[Fri Jan 16 17:14:00 2004] [jk_connect.c (188)]: Into jk_open_socket
[Fri Jan 16 17:14:00 2004] [jk_connect.c (195)]: jk_open_socket, try to
connect socket = 10
[Fri Jan 16 17:14:00 2004] [jk_connect.c (204)]: jk_open_socket, after
connect ret = 0
[Fri Jan 16 17:14:00 2004] [jk_connect.c (213)]: jk_open_socket, set
TCP_NODELAY to on
[Fri Jan 16 17:14:00 2004] [jk_connect.c (230)]: jk_open_socket, return,
sd = 10
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (738)]: In
jk_endpoint_t::ajp_connect_to_endpoint, connected sd = 10
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (774)]: sending to ajp13 #474
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (1064)]: ajp_send_request 2:
request body to send 0 - request body to resend 0
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (885)]: received from ajp13 #60
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (515)]:
ajp_unmarshal_response: status = 200
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (521)]:
ajp_unmarshal_response: Number of headers is = 2
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (575)]:
ajp_unmarshal_response: Header[0] [Content-Type] = [text/html]
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (575)]:
ajp_unmarshal_response: Header[1] [Content-Length] = [896]
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (885)]: received from ajp13 #900
[Fri Jan 16 17:14:00 2004] [mod_jk.c (406)]: writing 896 (896) out of 896
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (885)]: received from ajp13 #2
[Fri Jan 16 17:14:00 2004] [jk_ajp_common.c (1661)]: Into
jk_endpoint_t::done, recycling connection
And this is a failed request:
[Fri Jan 16 17:14:07 2004] [jk_uri_worker_map.c (486)]: Into
jk_uri_worker_map_t::map_uri_to_worker
[Fri Jan 16 17:14:07 2004] [jk_uri_worker_map.c (500)]: Attempting to map
URI '/jsp-examples/jsp2/simpletag/book.jsp'
[Fri Jan 16 17:14:07 2004] [jk_uri_worker_map.c (524)]:
jk_uri_worker_map_t::map_uri_to_worker, Found a context match worker_principal
[Fri Jan 16 17:14:07 2004] [mod_jk.c (1717)]: Into handler r->proxyreq=0
r->handler=jakarta-servlet r->notes=135484688 worker=worker_pr
[Fri Jan 16 17:14:07 2004] [jk_worker.c (132)]: Into
wc_get_worker_for_name worker_principal
[Fri Jan 16 17:14:07 2004] [jk_worker.c (136)]: wc_get_worker_for_name,
done found a worker
[Fri Jan 16 17:14:07 2004] [mod_jk.c (505)]: agsp=80 agsn=10.0.0.102
hostn=10.0.0.102 shostn=www.androlinux.com cbsport=80 sport=80
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (1686)]: Into
jk_worker_t::get_endpoint
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (1730)]: In
jk_endpoint_t::ajp_get_endpoint, time elapsed since last request = 7 seconds
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (1319)]: Into
jk_endpoint_t::service
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (295)]: Into
ajp_marshal_into_msgb
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (463)]: ajp_marshal_into_msgb
- Done
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
[Fri Jan 16 17:14:07 2004] [jk_ajp_common.c (774)]: sending to ajp13 #313
And in the tomcat access_log I see many request like this:
10.0.0.23 - - [16/Jan/2004:17:14:07 +0100] "GET
/jsp-examples/jsp2/simpletag/book.jsp HTTP/1.1" 200 89
10.0.0.23 - - [16/Jan/2004:17:14:07 +0100] "GET
/jsp-examples/jsp2/simpletag/book.jsp HTTP/1.1" 200 89
10.0.0.23 - - [16/Jan/2004:17:14:07 +0100] "GET
/jsp-examples/jsp2/simpletag/book.jsp HTTP/1.1" 200 89
10.0.0.23 - - [16/Jan/2004:17:14:07 +0100] "GET
/jsp-examples/jsp2/simpletag/book.jsp HTTP/1.1" 200 89
[and so on until 100 or more request]
As I've said not always fails :-?
Here I put my configuration files:
__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ___
workers.properties:
workers.tomcat_home=/opt/tomcat5
workers.java_home=/opt/jdk_nb/j2sdk1.4.2
ps=/
worker.list=worker_principal
worker.worker_principal.port=8009
worker.worker_principal.host=localhost
worker.worker_principal.type=ajp13
worker.worker_principal.lbfactor=100
__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ______
server.xml
<!-- Example Server Configuration File -->
<!-- Note that component elements are nested corresponding to their
parent-child relationships with each other -->
<!-- A "Server" is a singleton element that represents the entire JVM,
which may contain one or more "Service" instances. The Server
listens for a shutdown command on the indicated port.
Note: A "Server" is not itself a "Container", so you may not
define subcomponents such as "Valves" or "Loggers" at this level.
-->
<Server port="8005" shutdown="SHUTDOWN" debug="0">
<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener  "
debug="0"/>
<Listener
className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener "
debug="0"/>
<!-- Global JNDI resources -->
<GlobalNamingResources>
<!-- Test entry for demonstration purposes -->
<Environment name="simpleValue" type="java.lang.Integer " value="30"/>
<!-- Editable user database that can also be used by
UserDatabaseRealm to authenticate users -->
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase "
description="User database that can be updated and saved">
</Resource>
<ResourceParams name="UserDatabase">
<parameter>
<name>factory</name>
<value>org.apache.catalina.users.MemoryUserDatabaseFactory </value>
</parameter>
<parameter>
<name>pathname</name>
<value>conf/tomcat-users.xml</value>
</parameter>
</ResourceParams>
</GlobalNamingResources>
<Service name="Catalina">
<!-- Define a non-SSL Coyote HTTP/1.1 Connector on port 8080 -->
<Connector port="8080"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
debug="0" connectionTimeout="20000"
disableUploadTimeout="true" />
<!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->
<Connector port="8009"
enableLookups="false" redirectPort="8443" debug="0"
protocol="AJP/1.3" />
<Engine name="Catalina" defaultHost="localhost" debug="0">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="catalina_log." suffix=".txt"
timestamp="true"/>
<Realm className="org.apache.catalina.realm.UserDatabaseRealm "
debug="0" resourceName="UserDatabase"/>
<Host name="localhost" debug="0" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Valve className="org.apache.catalina.valves.AccessLogValve "
directory="logs" prefix="localhost_access_log."
suffix=".txt"
pattern="common" resolveHosts="false"/>
<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="localhost_log." suffix=".txt"
timestamp="true"/>
</Host>
</Engine>
</Service>
</Server>
__ ____ ____ ____ __
httpd.conf
# Cargamos el modulo JK
#
LoadModule jk_module modules/mod_jk.so
#
# Configuramos el mod_jk
#
JkWorkersFile conf/workers.properties
JkLogFile logs/mod_jk.log
JkLogLevel debug
JkMount /jsp-examples/* worker_principal
__ ____ ____
Any help?
Thank you very much.
Oscar Serrano
http://www.andromedical.com
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