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Struts & Hibernate
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| | | Tomcat 5, Apache2 and mod_jk2 integration problem | Tomcat 5, Apache2 and mod_jk2 integration problem 2004-01-09 - By Paul.Rathbone@(protected)
Back
Hi
I am running RedHat 9 with Tomcat 5.0.16 and Apache 2.0.48 and trying to
get mod_jk2 to work so that I can use apache as the server and just pass
jsp and servlet requests on to tomcat.
In order to get tomcat to auto-generate the apache configuration files I
have had to take tomcat-jk2.jar from the most recent nightly build (to get
ApacheConfig.class) - see bugzilla bug report 25838 and its resolution.
I eventually managed to get mod_jk2 to compile (using configure, make etc
- not ant) and put mod_jk2.so and jkjni.so into apache/modules directory
(and added the LoadModule to httpd.conf).
Below I have pasted in my server.xml, workers2.properties and
jk2.properties files which at least get apache and tomcat to both start
without errors.
My problem is that when I try to open /jsp-examples/ through apache, I get
the following message in the browser : "The servlet container is temporary
unavailable or being upgraded" along with an Internal Error (500), and in
the catalina.out file I get :
Jan 9, 2004 1:53:58 PM
org.apache.tomcat.util.threads.ThreadPool  $ControlRunnable run
SEVERE: Caught exception (java.lang.NoSuchMethodError :
org.apache.coyote.Request ()Lorg/apache/tomcat/util/buf/MessageBytes;)
executing org.apache.jk.common.SocketConnection@(protected), terminating
thread
in the apache error_log file is the following :
[Fri Jan 09 13:53:58 2004] [error] msgAjp.receive(): Bad signature 00
[Fri Jan 09 13:53:58 2004] [error] channelSocket.receive(): Bad header
[Fri Jan 09 13:53:58 2004] [error] workerEnv.processCallbacks() Error
reading reply
[Fri Jan 09 13:53:58 2004] [error] ajp13.service() ajpGetReply recoverable
error 120000
I have turned on as much logging as I can find and the jk2.log from
mod_jk2 doesn't log anything after it has started up.
However, I still have tomcat listening on port 8080 and the /jsp-examples/
works fine through there.
>From the contents of the log files I think mod_jk2 is working OK and
passing the request on to Tomcat, but tomcat is failing to process the
request - have I missed a step somewhere ?
I have experimented with [uri: ...] entries in workers2.properties and
with the <Context > tag in server.xml but haven't succeeded yet - can
anyone help please ?
Thanks for your time.
Paul
(Config files all with their comments removed)
jk2.properties :
shm.file=/usr/local/jakarta-tomcat-5 (See http://cat-5.ora-code.com)/work/jk2.shm
-- ---- ---- ---- ----
workers2.properties :
[shm]
file=/usr/local/jakarta-tomcat-5 (See http://cat-5.ora-code.com)/work/jk2.shm
size=1048576
[channel.socket:localhost:8009]
tomcatId=localhost:8009
info=Ajp13 forwarding over socket
[uri:/jsp-examples/*]
[logger.file:0]
level=DEBUG
file=/usr/local/apache/logs/jk2.log
-- ---- ---- ---- ----
server.xml
<Server port="8005" shutdown="SHUTDOWN" debug="0">
<Listener
className="org.apache.catalina.mbeans.ServerLifecycleListener "
debug="0"/>
<Listener
className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener "
forwardAll="false"
noRoot="false"/>
<Listener className="org.apache.jk.config.ApacheConfig "
modJk="/usr/local/apache/modules/mod_jk2.so"
workersConfig="/usr/local/apache/conf/workers2.properties"/>
<GlobalNamingResources>
<Environment name="simpleValue" type="java.lang.Integer " value="30"/>
<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">
<Connector port="8080"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
debug="0" connectionTimeout="20000"
disableUploadTimeout="true" />
<Connector className="org.apache.coyote.tomcat5.CoyoteConnector"
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"
verbosity="4"
prefix="catalina_log." suffix=".log"
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">
<Listener className="org.apache.jk.config.ApacheConfig "
append="true"
forwardAll="false"
modJk="/usr/local/apache/modules/mod_jk2.so" />
<Logger className="org.apache.catalina.logger.FileLogger"
verbosity="4"
directory="logs" prefix="localhost." suffix=".log"
timestamp="true"/>
</Host>
</Engine>
</Service>
</Server>
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
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