Apache mod_jk

[ap5000]

apache mod_jk not listening

I am running the latest version of ubuntu and have finished loading all per the documentation. I think I may have a problem with the apache mod_jk. When I try to login in I get error 503 server temporarily unavailable. I went to the link in previous posting and I am getting the following message.

Service Temporarily Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

I checked my log files for apache and for the mod_jk.log it states the following.

> [Tue Mar 06 16:00:19 2007] [13527:0000] [error] ajp_service::jk_ajp_common.c (1
> 794): Error connecting to tomcat. Tomcat is probably not started or is listening
> on the wrong port. worker=ajp13_worker failed

I created the ox.conf file and checked the workers properties file and all seemed correct. jk.load is also listed under mods-enabled folder.

[Marcus Klein]

Check with

netstat -atp | grep 8009

if the groupware is running and listening on the AJP port 8009.

[ap5000]

The netstat command comes back with nothing. I guess it is not listening. I checked running services and it shows the following
root 19187 17778 7 10:08 pts/0 00:00:01 /usr/bin/java -ms50m -mx50m -Djava.awt.headless=true -Dopenexchange.propfile=/opt/open-xchange/etc/groupware/
?

[ap5000]

Sorry to revisit this issue but I still have not been able to resolve it. Does anyone have any ideas why this is happening.
When logging into gui I get
Service Temporarily Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Any help would be greatly appreciated!

[peterking756]

install libapache2-mod-jk

please install libapache2-mod-jk
apt-get install libapache2-mod-jk

vi /etc/apache2/conf.d/ox.conf

# Where to find workers.properties. We will create this file later in the tutorial.
JkWorkersFile /etc/apache2/workers.properties
# Where to put jk logs.
JkLogFile /var/log/apache2/mod_jk.log
# Set the jk log level [debug/error/info]
JkLogLevel error
# Select the log format
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
# JkRequestLogFormat set the request format
JkRequestLogFormat "%w %V %T"
# This points to our servlets we install later
JkMount /ajax/* ajp13
JkMount /servlet/* ajp13


vi /etc/libapache2-mod-jk/workers.properties

# workers.properties -
workers.tomcat_home=/usr/share/tomcat4
workers.java_home=/usr/lib/j2sdk1.5-sun

ps=/

worker.list=ajp13_worker

worker.ajp13_worker.port=8009
worker.ajp13_worker.host=localhost
worker.ajp13_worker.type=ajp13

worker.ajp13_worker.lbfactor=1

worker.loadbalancer.type=lb
worker.loadbalancer.balanced_workers=ajp13_worker

and final restart your apache2
/etc/init.d/apache2 restart

if you still have questions ,please email to pqiu@neuros.com.cn. Thanks.

[TheInvisible]

I am running the latest version of ubuntu and have finished loading all per the documentation. I think I may have a problem with the apache mod_jk. When I try to login in I get error 503 server temporarily unavailable. I went to the link in previous posting and I am getting the following message.

Service Temporarily Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

I checked my log files for apache and for the mod_jk.log it states the following.

> [Tue Mar 06 16:00:19 2007] [13527:0000] [error] ajp_service::jk_ajp_common.c (1
> 794): Error connecting to tomcat. Tomcat is probably not started or is listening
> on the wrong port. worker=ajp13_worker failed

I created the ox.conf file and checked the workers properties file and all seemed correct. jk.load is also listed under mods-enabled folder.

I get the same error, all seems running fine but in real it does not.

any idea somebody?

edit:
i found some log information

Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :620)
at java.security.SecureClassLoader.defineClass(Secure ClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader .java:260)
at java.net.URLClassLoader.access$100(URLClassLoader. java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java: 195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 06)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:268)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:319)
at org.apache.jcs.engine.control.CompositeCacheManage r.configure(CompositeCacheManager.java:300)
at org.apache.jcs.engine.control.CompositeCacheManage r.configure(CompositeCacheManager.java:255)
at com.openexchange.cache.Configuration.configure(Con figuration.java:122)
at com.openexchange.cache.Configuration.load(Configur ation.java:99)
at com.openexchange.database.AssignmentStorage.init(A ssignmentStorage.java:245)
at com.openexchange.database.DatabaseInit.init(Databa seInit.java:83)
at Starter.<init>(Starter.java:132)
at ComfireServer.main(ComfireServer.java:62)

what does this mean?

[Francisco Laguna]

This error usually crops up when you use an older java vm to load a newer class. Say you compile something with java 1.5 and try to start it with java 1.4 then you get this error.

What is your java -version ?

[TheInvisible]

Output of java -version:

java version "1.5.0_10"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_10-b03)
Java HotSpot(TM) Client VM (build 1.5.0_10-b03, mixed mode, sharing)

I am using debian etch with sun-jdk package from apt-get.

Have I do use JDK6?

[Francisco Laguna]

With java 1.5 you should be fine. The question remains whether the OX lookup mechanism finds the correct java (though I suppose it would). In a new shell, could you try:

. /opt/open-xchange/etc/groupware/oxfunctions.sh
ox_set_JAVA_BIN
$JAVA_BIN -version

?

[peterking756]

how to config the apache mod-jk for ox on debian

I have download almost everything to install openxchange but the mod_jk still a problem. The binaries on the apache page : http://tomcat.apache.org/connectors-doc/ are not available. And if I download a version of another site, I have dependency problems.

How can I do ?

Hacki, you can config the apache2 mod-jk on debian like following:

first install the libapache2_mod_jk2 package:
apt-get install libapache2-mod-jk
if you have install the libapache2_mod_jk2, please remove it:
apt-get remove --purge libapache2_mod_jk2

then edit this file: /etc/apache2/conf.d/ox.conf

# Where to find workers.properties. We will create this file later in the tutorial.
#JkWorkersFile /etc/apache2/workers.properties
JkWorkersFile /etc/libapache2-mod-jk/workers.properties
# Where to put jk logs.
JkLogFile /var/log/apache2/mod_jk.log
# Set the jk log level [debug/error/info]
JkLogLevel error
# Select the log format
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
# JkRequestLogFormat set the request format
JkRequestLogFormat "%w %V %T"
# This points to our servlets we install later
JkMount /ajax/* ajp13_worker
JkMount /servlet/* ajp13_worker


final edit this file : /etc/libapache2-mod-jk/workers.properties


#workers.tomcat_home=/usr/share/tomcat4
#workers.java_home should config according your java_home path
workers.java_home=/usr/lib/jvm/java-1.5.0-sun
ps=/
worker.list=ajp13_worker
worker.ajp13_worker.port=8009
worker.ajp13_worker.host=localhost
worker.ajp13_worker.type=ajp13
worker.ajp13_worker.lbfactor=1
worker.loadbalancer.type=lb
worker.loadbalancer.balanced_workers=ajp13_worker

final final restart your apache2
/etc/init.d/apache2 restart

now , you mod_jk for apache2 is ok.
Notice: workers.java_home according your java_home patch config