F Running CacheWatcher to Verify Java Object Cache

F.1 Running CacheWatcher

For this example, the managed servers in the cluster are WLS_Server1 and WLS_Server2:

• WLS_Server1 is running on APPHOST1.

• Start CacheWatcher on APPHOST2. WLS_Server2 should be down.

To run CacheWatcher:

1. For ORACLE_HOME, use the location of the Oracle Web Center installation. For example, MW_HOME/Oracle_WC1.

2. For DOMAIN_HOME, use the full path to the location of your domain, under MW_HOME/user_projects/domains.

3. Server_Name refers to a managed server name. For example, WLS_Server2. Cachewatcher can use the same javacache.xml file that the Managed Server would use.

4. On APPHOST2, execute the following:

   "java -classpath ORACLE_HOME/modules/oracle.javacache_
   11.1.1/cache.jar:ORACLE_HOME/modules/oracle.odl_11.1.1/ojdl.jar oracle.ias.cache.CacheUtil
   watch -config=DOMAIN_HOME/config/fmwconfig/servers/<Server_Name>/javacache.xml
   

5. At the CacheWatcher's prompt, type lc and then press Enter.

   A group view appears.

   The group view indicates the number of cache members. The following is an example of a CacheWatcher run:

   java -classpath MW_HOME/modules/oracle.javacache_11.1.1/
   cache.jar:MW_HOME/modules/oracle.odl_11.1.1/ojdl.jar
   oracle.ias.cache.CacheUtil watch -config=DOMAIN_HOME
   /config/fmwconfig/servers/WLS_Server_Server/javacache.xml"
   cache> lc
   VID:    2
   Size:   2
   Column: 0123456789
   CL:     JJ
   GRP0:   11
   ...
   Member Table:
   #1. J57161:145.87.9.15:86AAC2E:11B28D57BE4:-7FFE, 0
   #2. J35578:145.87.9.14:-9E92850:11B28D5F7E0:-7FFF, 1
   

   After starting CacheWatcher on each host, find two members from the view.

   Note:

   CacheWatcher itself is considered a distributed cache instance. To terminate the CacheWatcher shell, type exit and press Enter.