[jboss-user] [Clustering/JBoss] - Re: Jboss 4.2.1 web session problem

Fri Oct 26 17:54:19 EDT 2007

Hi , I reinstalled Apache 2.2.6 and configured with mod_jk-apache-2.2.4.
Then I tested , it was not throwing any error.
I thing it is configured properly.

(1) mod-jk.conf

  | # Load mod_jk module
  | # Specify the filename of the mod_jk lib
  | LoadModule jk_module modules/mod_jk.so
  | 
  | # Where to find workers.properties
  | JkWorkersFile conf/workers.properties
  | 
  | # Where to put jk logs
  | JkLogFile logs/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 indicates to send SSK KEY SIZE
  | # Note: Changed from +ForwardURICompat. 
  | # See http://tomcat.apache.org/security-jk.html  
  | JkOptions +ForwardKeySize +ForwardURICompatUnparsed -ForwardDirectories
  | 
  | # JkRequestLogFormat
  | JkRequestLogFormat "%w %V %T"
  | 
  | # Mount your applications
  | JkMount /__application__/* loadbalancer
  | 
  | # You can use external file for mount points.
  | # It will be checked for updates each 60 seconds.
  | # The format of the file is: /url=worker
  | # /examples/*=loadbalancer
  | JkMountFile conf/uriworkermap.properties
  | 
  | # Add shared memory.
  | # This directive is present with 1.2.10 and
  | # later versions of mod_jk, and is needed for
  | # for load balancing to work properly
  | # Note: Replaced JkShmFile logs/jk.shm due to SELinux issues. Refer to 
  | # https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=225452
  | JkShmFile run/jk.shm
  | 
  | # Add jkstatus for managing runtime data
  | <Location /jkstatus/>
  | JkMount status
  | Order deny,allow
  | Deny from all
  | Allow from all
  | </Location>
  | 

(2)workers.properties

  | # Define list of workers that will be used
  | # for mapping requests
  | # The configuration directives are valid
  | # for the mod_jk version 1.2.18 and later
  | #
  | worker.list=loadbalancer,status
  | 
  | # Define Node1
  | # modify the host as your host IP or DNS name.
  | worker.node1.port=8009
  | worker.node1.host=166.35.136.77
  | worker.node1.type=ajp13
  | worker.node1.lbfactor=1
  | # worker.node1.connection_pool_size=10 (1)
  | 
  | # Define Node2
  | # modify the host as your host IP or DNS name.
  | worker.node2.port=8009
  | worker.node2.host=166.35.136.77
  | worker.node2.type=ajp13
  | worker.node2.lbfactor=1
  | # worker.node1.connection_pool_size=10 (1)
  | 
  | # Load-balancing behaviour
  | worker.loadbalancer.type=lb
  | worker.loadbalancer.balance_workers=node1,node2
  | 
  | # Status worker for managing load balancer
  | worker.status.type=status
  | 

(3)uriworkermap.properties

  | # Simple worker configuration file
  | #
  | 
  | # Mount the Servlet context to the ajp13 worker
  | /jmx-console=loadbalancer
  | /jmx-console/*=loadbalancer
  | /web-console=loadbalancer
  | /web-console/*=loadbalancer
  | 
  | 

these are the configurations which made in apache side.

and at JBoss 4.2.1 side at the file 

<JBOSS_HOME>\server\node1\deploy\jboss-web.deployer\server.xml

  | 
  | <!-- Define an AJP 1.3 Connector on port 8009 -->
  |     <Connector port="8009" address="${jboss.bind.address}" protocol="AJP/1.3"
  |          emptySessionPath="true" enableLookups="false" redirectPort="8443" />
  | 
  |       <Engine name="jboss.web" defaultHost="localhost" jvmRoute="node1">
  | 
  | 

and also at  <JBOSS_HOME>\server\node1\deploy\jboss-web.deployer\META-INF\jboss-service.xml

I changed as 

  | <attribute name="UseJK">true</attribute>
  | 

Same as for node2 also.

Then I started apache first , 

next I started node1 with the following command

  | run.bat -b 166.35.136.77 -c node1
  | 

Next I started node2 as same as above.

I tryed to run at brower by giving the URL as 

http://166.35.136.77/Counter/index.jsp

it was throwing error.

  | Not Found
  | 
  | The requested URL /Counter was not found on this server
  | 

http://166.35.136.77:8009/Counter/index.jsp
 throwing that the unable to connect

I checked in the mod_jk.log file ..It is saying that

  | 
  | [Fri Oct 26 13:00:24 2007][1860:2896] [info] mod_jk.c (2277): Service error=0 for worker=loadbalancer
  | [Fri Oct 26 13:00:30 2007][1860:2896] [info] jk_lb_worker.c (1167): Forcing recovery once for 2 workers
  | [Fri Oct 26 13:00:31 2007][1860:2896] [info] jk_connect.c (473): connect to 166.35.136.77:8009 failed (errno=61)
  | [Fri Oct 26 13:00:31 2007][1860:2896] [info] jk_ajp_common.c (891): Failed opening socket to (166.35.136.77:8009) (errno=61)
  | [Fri Oct 26 13:00:31 2007][1860:2896] [info] jk_ajp_common.c (1311): (node1) error connecting to the backend server (errno=61)
  | [Fri Oct 26 13:00:31 2007][1860:2896] [info] jk_ajp_common.c (2085): (node1) sending request to tomcat failed,  recoverable operation attempt=1
  | [Fri Oct 26 13:00:32 2007][1860:2896] [info] jk_connect.c (473): connect to 166.35.136.77:8009 failed (errno=61)
  | [Fri Oct 26 13:00:32 2007][1860:2896] [info] jk_ajp_common.c (891): Failed opening socket to (166.35.136.77:8009) (errno=61)
  | [Fri Oct 26 13:00:32 2007][1860:2896] [info] jk_ajp_common.c (1311): (node1) error connecting to the backend server (errno=61)
  | [Fri Oct 26 13:00:32 2007][1860:2896] [info] jk_ajp_common.c (2085): (node1) sending request to tomcat failed,  recoverable operation attempt=2
  | [Fri Oct 26 13:00:32 2007][1860:2896] [error] jk_ajp_common.c (2097): (node1) Connecting to tomcat failed. Tomcat is probably not started or is listening on the wrong port
  | 

Can any body help me what went wrong.

Thanks!
VVK

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