CVS update: JGroups/doc/manual/en/modules advanced.xml

  User: belaban 
  Date: 10/09/30 09:45:48

  Modified:    doc/manual/en/modules advanced.xml
  Log:
  ns
  
  Revision  Changes    Path
  1.37      +30 -2     JGroups/doc/manual/en/modules/advanced.xml
  
  Index: advanced.xml
  ===================================================================
  RCS file: /cvsroot/javagroups/JGroups/doc/manual/en/modules/advanced.xml,v
  retrieving revision 1.36
  retrieving revision 1.37
  diff -u -r1.36 -r1.37
  --- advanced.xml	30 Sep 2010 09:33:56 -0000	1.36
  +++ advanced.xml	30 Sep 2010 09:45:48 -0000	1.37
  @@ -1561,17 +1561,45 @@
                       We highly recommend setting max_rank in large clusters.
                   </para>
                   <para>
  -                    This functionality was implemented in  https://jira.jboss.org/browse/JGRP-1181.
  +                    This functionality was implemented in
  +                    <ulink url="https://jira.jboss.org/browse/JGRP-1181">https://jira.jboss.org/browse/JGRP-1181</ulink>.
                   </para>
               </section>
               <section>
                   <title>Failure detection protocols</title>
                   <para>
  -                    
  +                    Failure detection protocols determine when a member is unresponsive, and subsequently
  +                    <emphasis>suspect</emphasis> it. Usually (FD, FD_ALL), messages (heartbeats) are used to determine
  +                    the health of a member, but we can also use TCP connections (FD_SOCK) to connect to a member P, and
  +                    suspect P when the connection is closed.
                   </para>
  +                <para>
  +                    Heartbeating requires messages to be sent around, and we need to be careful to limit the number of
  +                    messages sent by a failure detection protocol (1) to detect crashed members and (2) when a member
  +                    has been suspected. The following sections discuss how to configure FD_ALL and FD_SOCK, the most
  +                    commonly used failure detection protocols, for use in large clusters.
  +                </para>
  +
  +                <section>
  +                    <title>FD_SOCK</title>
  +                </section>
  +                
  +                <section>
  +                    <title>FD_ALL</title>
  +                </section>
               </section>
   
           </section>
   
  +        <section>
  +            <title>Ergonomics</title>
  +            <para>
  +                Ergonomics is similar to the dynamic setting of optimal values for the JVM, e.g. garbage collection,
  +                memory sizes etc. In JGroups, ergonomics means that we try to dynamically determine and set optimal
  +                values for protocol properties. Examples are thread pool size, flow control credits, heartbeat
  +                frequency and so on.
  +            </para>
  +        </section>
  +
       </section>
   </chapter>
  \ No newline at end of file
  
  
  

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