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[jboss-user] [Clustering/JBoss] - Request not redirecting to the
 server in the cluster.. Help

scott.stark@jboss.org

2007-05-07


I have configured loadbalancer as belows and I the request are not redirecting to the correct servers. Please help me on this.

We have 2 jboss machines running on
 1) 10.239.20.193 Port 8080
 2) 10.239.96.181 Port 8080

We have installed Apache with mod_jk in another machine (10.239.19.149)
and have done the following configurations:

Configuration changes in JBoss Node 1 (10.239.20.193 Port 8080)
a) In server/all/deploy/jbossweb-tomcat55.sar/server.xml
 we have modified the jvmRoute tag in <Engine tag to "node1"
 
 
b) Modified the useJK in the /server/all/deploy/jbossweb-tomcat55.sar/META-INF/jboss-service.xml to true
 true

Configuration changes in JBoss Node 2 (10.239.96.181 Port 8080)
a) In server/all/deploy/jbossweb-tomcat55.sar/server.xml
 we have modified the jvmRoute tag in <Engine tag to "node2"
 

b) Modified the useJK in the /server/all/deploy/jbossweb-tomcat55.sar/META-INF/jboss-service.xml to true
 true

Configuration changes in Load balancer machine:
a) Modified httpd.conf
   Included the following block at the end:
   
   # Include mod_jk's specific configuration file
 Include conf/mod-jk.conf

b) Create mod-jk.conf with the following contents:
   # 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
   JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
   
   # JkRequestLogFormat
   JkRequestLogFormat "%w %V %T"
   
   # Mount your applications
   JkMount /ppm/* 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
   JkShmFile logs/jk.shm
   
   # Add jkstatus for managing runtime data
   <Location /jkstatus/>
   JkMount status
   Order deny,allow
   Deny from all
   Allow from 127.0.0.1
   
c) Created uriworker.properties with the following contents:

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

d) Created worker.properties with the following contents:
   # Define list of workers that will be used
   # for mapping requests
   worker.list=loadbalancer,status
   
   # Define Node1
   # modify the host as your host IP or DNS name.
   worker.node1.port=8080
   worker.node1.host=10.239.20.193
   worker.node1.type=ajp13
   worker.node1.lbfactor=1
   worker.node1.cachesize=10
   
   # Define Node2
   # modify the host as your host IP or DNS name.
   worker.node2.port=8080
   worker.node2.host=10.239.96.181
   worker.node2.type=ajp13
   worker.node2.lbfactor=1
   worker.node2.cachesize=10
   
   # Load-balancing behaviour
   worker.loadbalancer.type=lb
   worker.loadbalancer.balance_workers=node1,node2
   worker.loadbalancer.sticky_session=1
   #worker.list=loadbalancer
   
   # Status worker for managing load balancer
   worker.status.type=status
   
When we try to hit the apache mod-jd with the following url we get the output in the log file as
http://localhost:80/ppm/a.html

       jk_map.c (432): The attribute 'worker.node1.cachesize' is deprecated - please check the documentation for the correct replacement.
       jk_map.c (432): The attribute 'worker.node2.cachesize' is deprecated - please check the documentation for the correct replacement.
       mod_jk.c (2743): mod_jk/1.2.22 initialized
       jk_map.c (432): The attribute 'worker.node1.cachesize' is deprecated - please check the documentation for the correct replacement.
       jk_map.c (432): The attribute 'worker.node2.cachesize' is deprecated - please check the documentation for the correct replacement.
       mod_jk.c (2743): mod_jk/1.2.22 initialized
       jk_map.c (432): The attribute 'worker.node1.cachesize' is deprecated - please check the documentation for the correct replacement.
       jk_map.c (432): The attribute 'worker.node2.cachesize' is deprecated - please check the documentation for the correct replacement.
       mod_jk.c (2743): mod_jk/1.2.22 initialized
       jk_map.c (432): The attribute 'worker.node1.cachesize' is deprecated - please check the documentation for the correct replacement.
       jk_map.c (432): The attribute 'worker.node2.cachesize' is deprecated - please check the documentation for the correct replacement.
       mod_jk.c (2743): mod_jk/1.2.22 initialized
       jk_ajp_common.c (945): (node1) Tomcat has forced a connection close for socket 844
       jk_ajp_common.c (1592): (node1) Tomcat is down or refused connection. No response has been sent to the client (yet)
       jk_ajp_common.c (1902): (node1) receiving from tomcat failed, recoverable operation attempt=0
       jk_ajp_common.c (1941): (node1) sending request to tomcat failed, recoverable operation attempt=1
       jk_ajp_common.c (945): (node1) Tomcat has forced a connection close for socket 844
       jk_ajp_common.c (1592): (node1) Tomcat is down or refused connection. No response has been sent to the client (yet)
       jk_ajp_common.c (1902): (node1) receiving from tomcat failed, recoverable operation attempt=1
       jk_ajp_common.c (1941): (node1) sending request to tomcat failed, recoverable operation attempt=2
       jk_ajp_common.c (1953): (node1) Connecting to tomcat failed. Tomcat is probably not started or is listening on the wrong port
       jk_lb_worker.c (1098): service failed, worker node1 is in error state
       jk_ajp_common.c (945): (node2) Tomcat has forced a connection close for socket 844
       jk_ajp_common.c (1592): (node2) Tomcat is down or refused connection. No response has been sent to the client (yet)
       jk_ajp_common.c (1902): (node2) receiving from tomcat failed, recoverable operation attempt=0
       jk_ajp_common.c (1941): (node2) sending request to tomcat failed, recoverable operation attempt=1
       jk_ajp_common.c (945): (node2) Tomcat has forced a connection close for socket 844
       jk_ajp_common.c (1592): (node2) Tomcat is down or refused connection. No response has been sent to the client (yet)
       jk_ajp_common.c (1902): (node2) receiving from tomcat failed, recoverable operation attempt=1
       jk_ajp_common.c (1941): (node2) sending request to tomcat failed, recoverable operation attempt=2
       jk_ajp_common.c (1953): (node2) Connecting to tomcat failed. Tomcat is probably not started or is listening on the wrong port
       jk_lb_worker.c (1098): service failed, worker node2 is in error state
       jk_lb_worker.c (1160): All tomcat instances are busy or in error state
       st 82.125000
       mod_jk.c (2254): Service error=0 for worker=loadbalancer
       jk_map.c (432): The attribute 'worker.node1.cachesize' is deprecated - please check the documentation for the correct replacement.
       jk_map.c (432): The attribute 'worker.node2.cachesize' is deprecated - please check the documentation for the correct replacement.
       mod_jk.c (2743): mod_jk/1.2.22 initialized
       jk_map.c (432): The attribute 'worker.node1.cachesize' is deprecated - please check the documentation for the correct replacement.
       jk_map.c (432): The attribute 'worker.node2.cachesize' is deprecated - please check the documentation for the correct replacement.
       mod_jk.c (2743): mod_jk/1.2.22 initialized
       jk_map.c (432): The attribute 'worker.node1.cachesize' is deprecated - please check the documentation for the correct replacement.
       jk_map.c (432): The attribute 'worker.node2.cachesize' is deprecated - please check the documentation for the correct replacement.
       mod_jk.c (2743): mod_jk/1.2.22 initialized
       jk_map.c (432): The attribute 'worker.node1.cachesize' is deprecated - please check the documentation for the correct replacement.
       jk_map.c (432): The attribute 'worker.node2.cachesize' is deprecated - please check the documentation for the correct replacement.
       mod_jk.c (2743): mod_jk/1.2.22 initialized
       jk_ajp_common.c (945): (node1) Tomcat has forced a connection close for socket 844
       jk_ajp_common.c (1592): (node1) Tomcat is down or refused connection. No response has been sent to the client (yet)
       jk_ajp_common.c (1902): (node1) receiving from tomcat failed, recoverable operation attempt=0
       jk_ajp_common.c (1941): (node1) sending request to tomcat failed, recoverable operation attempt=1
       jk_ajp_common.c (945): (node1) Tomcat has forced a connection close for socket 844
       jk_ajp_common.c (1592): (node1) Tomcat is down or refused connection. No response has been sent to the client (yet)
       jk_ajp_common.c (1902): (node1) receiving from tomcat failed, recoverable operation attempt=1
       jk_ajp_common.c (1941): (node1) sending request to tomcat failed, recoverable operation attempt=2
       jk_ajp_common.c (1953): (node1) Connecting to tomcat failed. Tomcat is probably not started or is listening on the wrong port
       jk_lb_worker.c (1098): service failed, worker node1 is in error state
       jk_ajp_common.c (945): (node2) Tomcat has forced a connection close for socket 844
       jk_ajp_common.c (1592): (node2) Tomcat is down or refused connection. No response has been sent to the client (yet)
       jk_ajp_common.c (1902): (node2) receiving from tomcat failed, recoverable operation attempt=0
       jk_ajp_common.c (1941): (node2) sending request to tomcat failed, recoverable operation attempt=1
       jk_ajp_common.c (945): (node2) Tomcat has forced a connection close for socket 844
       jk_ajp_common.c (1592): (node2) Tomcat is down or refused connection. No response has been sent to the client (yet)
       jk_ajp_common.c (1902): (node2) receiving from tomcat failed, recoverable operation attempt=1
       jk_ajp_common.c (1941): (node2) sending request to tomcat failed, recoverable operation attempt=2
       jk_ajp_common.c (1953): (node2) Connecting to tomcat failed. Tomcat is probably not started or is listening on the wrong port
       jk_lb_worker.c (1098): service failed, worker node2 is in error state
       jk_lb_worker.c (1160): All tomcat instances are busy or in error state


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