1 Reply Latest reply on Feb 21, 2008 11:50 AM by belaban

    Viewing replication activity

    a045103

      Greetings,

      I am working with JBoss Cache as a second level hibernate cache, where Hibernate is used via Spring DAO support.

      By virtue of Hibernate logging I can tell the cache is working as expected, and that data is being replicated. However, I have not been able to figure out the right log settings to view the replication activity via the logs.

      Ideally, in a two JVM cluster, I'd like to see all activity related to replication in the logs (for my own edification) -- logging related to the 2 phase commit (for REPL_SYNC), logging related to data transfer, etc.

      I can glean the fact data is being replicated by setting the serialization logging to debug, but I'm really after a higher level picture of the communication between the cluster members. When replication is occurring, for example, I don't see any indication of JGroups activity.

      Here's my logging configuration (this is all running in the latest GA JBoss app server).

      <?xml version="1.0" encoding="UTF-8"?>
      <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
      
      
      <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">
      
      
       <!-- A time/date based rolling appender -->
       <appender name="FILE" class="org.jboss.logging.appender.DailyRollingFileAppender">
       <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>
       <param name="File" value="${jboss.server.log.dir}/server.log"/>
       <param name="Append" value="false"/>
      
       <!-- Rollover at midnight each day -->
       <param name="DatePattern" value="'.'yyyy-MM-dd"/>
      
       <layout class="org.apache.log4j.PatternLayout">
       <!-- The default pattern: Date Priority [Category] Message\n -->
       <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
      
       </layout>
       </appender>
      
       <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
       <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>
       <param name="Target" value="System.out"/>
       <param name="Threshold" value="DEBUG"/>
      
       <layout class="org.apache.log4j.PatternLayout">
       <!-- The default pattern: Date Priority [Category] Message\n -->
       <!-- <param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%c{1}] %m%n"/> -->
       <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
       </layout>
       </appender>
      
       <category name="org.hibernate">
       <priority value="DEBUG"/>
       </category>
      
       <category name="org.springframework">
       <priority value="DEBUG"/>
       </category>
      
       <category name="org.jgroups">
       <priority value="DEBUG"/>
       </category>
      
       <category name="org.jboss.cache">
       <priority value="DEBUG"/>
       </category>
      
       <category name="org.jboss.serial">
       <priority value="DEBUG"/>
       </category>
      
       <category name="test">
       <priority value="DEBUG"/>
       </category>
      
       <category name="org.jboss">
       <priority value="INFO"/>
       </category>
      
       <category name="com.arjuna">
       <priority value="INFO"/>
       </category>
      
       <category name="org.jnp">
       <priority value="INFO"/>
       </category>
      
       <!-- ================ -->
       <!-- Limit categories -->
       <!-- ================ -->
      
       <!-- Limit the org.apache category to INFO as its DEBUG is verbose -->
       <category name="org.apache">
       <priority value="INFO"/>
       </category>
      
       <!-- Limit the jacorb category to WARN as its INFO is verbose -->
       <category name="jacorb">
       <priority value="WARN"/>
       </category>
      
       <!-- Limit the org.quartz category to INFO as its DEBUG is verbose -->
       <category name="org.quartz">
       <priority value="INFO"/>
       </category>
      
       <!-- Limit the JSR77 categories -->
       <category name="org.jboss.management">
       <priority value="INFO"/>
       </category>
      
       <root>
       <appender-ref ref="CONSOLE"/>
       <appender-ref ref="FILE"/>
       </root>
      
      </log4j:configuration>
      


        • 1. Re: Viewing replication activity
          belaban

          You'll need to expose the org.jgroups and org.jboss.cache categories at the TRACE level. Be aware though that this generates tons of logging data !
          You could also enable the Management interceptor in JBossCache, which shows stats about JBossCache.