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Struts & Hibernate
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| | | keeping same session via apache2 mod_jk2 and tomcat5 | keeping same session via apache2 mod_jk2 and tomcat5 2006-03-17 - By Vahid Hedayati
Back
Hi All.
Have been looking for a few days now for a fix for this one issue that I
just cannot get around..
Basically
If I run
http://www.greenlightproductions.co.uk/servlets/SessionExample
The session ID keeps changing if you refresh the page
(same goes for all other servlet code I been using you login once logged in
session info lost as in new session ID assigned)
but if I go to port 8180 it works perfect
http://www.greenlightproductions.co.uk:8180/servlets/SessionExample
the session ID remains the same no matter how much i refresh.
I have been looking all over google for an answer for this and most of it is
to do with load balancing tomcat and getting same session ID :(
I am sure others have hit this issue before and it must be a tom cat config
issue (well for the apache listener)
here is some of my config.
#######################################################################
/etc/apache2/mods-enabled/jk2.load
LoadModule jk2_module /usr/lib/apache2/modules/mod_jk2.so
#######################################################################
/etc/apache2/mods-enabled/jk2.conf
# To enable mod_jk2, customize workers2.properties* from
# /usr/share/doc/libapache2-mod-jk2/examples and copy it to
# /etc/apache2/workers2.properties. Then uncomment the following line:
JkSet config.file /etc/apache2/workers2.properties
# Where to put jk logs
#JkLogFile /var/log/apache2/mod_jk.log
# Set the jk log level [debug/error/info]
#JkLogLevel info
# Select the log format
#JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
# JkOptions indicate to send SSL KEY SIZE,
#JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
# JkRequestLogFormat set the request format
#JkRequestLogFormat "%w %V %T"
# Globally deny access to the WEB-INF directory
<LocationMatch '.*WEB-INF.*'>
AllowOverride None
deny from all
</LocationMatch>
#######################################################################
/etc/apache2/workers2.properties
#
# This is the minimal JK2 connector configuration file.
#
[logger]
info=Native logger
level=ERROR
[config:]
file=${serverRoot}/workers2.properties
debug=0
debugEnv=0
[uriMap:]
info=Maps the requests.
debug=0
[shm:]
info=Scoreboard. Required for reconfiguration and status with multiprocess
servers
file=anonymous
debug=0
[workerEnv:]
info=Global server options
timing=0
debug=0
[lb:lb]
info=Default load balancer.
debug=0
[channel.socket:localhost:8009]
info=Ajp13 forwarding over socket
debug=0
#tomcatId=tomcat1
tomcatId=localhost:8009
keepalive=1
[uri:/admin]
info=Tomcat HTML based administration web application.
debug=0
[uri:/manager]
info=A scriptable management web application for the Tomcat Web Server.
debug=0
[uri:/jsp-examples]
info=JSP 2.0 Examples.
debug=0
[uri:/servlets-examples]
tomcatId = jvmRoute
info=Servlet 2.4 Examples.
debug=0
[uri:/*.jsp]
info=JSP Extension mapping.
debug=0
[uri:/servlets/*]
worker=ajp13:localhost:8009
#######################################################################
snippets of /etc/tomcat5/server.xml
<Server port="8005" shutdown="SHUTDOWN" debug="0">
<!--apache listne added-->
<Listener className="org.apache.jk.config.ApacheConfig  "
modJk="/usr/lib/apache2/modules/mod_jk2.so"
WorkersConfig="/etc/apache2/workers2.properties" />
<Listener className="org.apache.jk.config.ApacheConfig "
append="true" forwardAll="false"
modJk="/usr/lib/apache2/modules/mod_jk2.so"
WorkersConfig="/etc/apache2/workers2.properties" />
...............
<!-- Define a non-SSL Coyote HTTP/1.1 Connector on port 8180 -->
<Connector className="org.apache.coyote.tomcat5.CoyoteConnector"
port="8180" minProcessors="5" maxProcessors="75"
enableLookups="true" acceptCount="10" debug="0"
connectionTimeout="20000" useURIValidationHack="false" />
...
<Host name="www.greenlightproductions.co.uk" debug="0"
appBase="/xxxx/servlets/"
unpackWARs="true" autoDeploy="true">
<Context path="/servlets" docBase="greenlight" debug="0"
reloadable="true"/>
<Manager className="org.apache.catalina.session.PersistentManager "
debug="0" saveOnRestart="true" maxActiveSessions="30"
minIdleSwap="60" maxIdleSwap="60" maxIdleBackup="60">
<Store className="org.apache.catalina.session.FileStore "
directory="/xxx/xxxx/log/"/>
<!--<Store className="org.apache.catalina.session.JDBCStore " driverName="
org.gjt.mm.mysql.Driver "
connectionURL="jdbc:mysql://localhost/tomcat?user=nnnn&password=xxxxx"
sessionTable="tomcat$sessions" sessionIdCol="id" sessionDataCol="data"
sessionValidCol="valid" sessionMaxInactiveCol="maxinact
ive" sessionLastAccessedCol="lastaccess" checkInterval="60" debug="99" />
-->
</Manager>
<parameter>
<name>driverClassName</name>
<value>org.gjt.mm.mysql.Driver </value>
</parameter>
<Valve className="org.apache.catalina.valves.AccessLogValve "
directory="logs" prefix="greenlight_log." suffix=".txt" pa
ttern="common" resolveHosts="true"/>
</Host>
#######################################################################
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