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  <info>
    <title>HA service management</title>
  </info>
        <para>The JOnAS administration console offers to access 
        several items of information about the HA service's replication algorithm and allows the configuring of several parameters related 
        to its behavior. 
        The related information and parameters include:  </para>
      <itemizedlist>
        <listitem><para>
          The name of the service.
        </para></listitem>
        <listitem><para>
          The binded name for the MBean. The name can be changed.
        </para></listitem>
        <listitem><para>
          The number of replicated messages sent by the algorithm to the cluster's     replicas.
        </para></listitem>
        <listitem><para>
          The average size of the replicated messages sent.
        </para></listitem>
        <listitem><para>
          The total size of the replicated messages sent.
        </para></listitem>
        <listitem><para>
          The current JGroups configuration file name used.
        </para></listitem>
        <listitem><para>
          The current timeout established to clean memory information related   
           to SFSBs required by the algorithm. When this timeout expires, the    information is garbage-collected. 
           This avoids increasing the memory used    by the algorithm. The administrator can set a different    timeout if required.
        </para></listitem>
        <listitem><para>
          The datasource name required by the algorithm to keep track of current    running transactions (See Transaction Table Configuration section above).    
          The default datasource is set through the "jonas.service.ha.datasource"    parameter in the "jonas.properties" configuration file, but the administrator    can configure different datasources and can set here, the name of the one    that will be used by the algorithm, once JOnAS has started.
          <note><para>
            It is recommended not to change the Datasource once the HA service    is running.
          </para></note>
        </para></listitem>
      </itemizedlist>
 </section>
