Provided by: heartbeat-2_2.0.2-5_i386 bug


       heartbeat - Heartbeat subsystem for High-Availability Linux




       heartbeat  is  a  basic  heartbeat subsystem for Linux-HA.  It will run
       scripts at initialisation, and when  machines  go  up  or  down.   This
       version  will  also  perform IP address takeover using gratuitous ARPs.
       It works correctly for a 2-node configuration,  and  is  extensible  to
       larger configurations.

       It implements the following kinds of heartbeats:
          * Bidirectional Serial Rings ("raw" serial ports)
          * UDP/IP broadcast (ethernet, etc.)
          * UDP/IP multicast (ethernet, etc.)
          * special "ping" heartbeats for routers, etc.

       Comprehensive   documentation  on  the  configuration  and  running  of
       heartbeat can is supplied in HTML format with the distribution  of  the
       code.  If  this documentation is not installed on your system it can be
       found, with the latest distribution of heartbeat  on  http://www.linux-


       -d     Increment debugging level. Higher levels are more verbose.

       -r     Reloads  heartbeat.  It  just sends it a SIGHUP.  If nothing has
              changed nothing will happen.  If or authkeys  has  changed
              it will start heartbeat or reread authkeys. May not be used with

       -k     Kill (stop) heartbeat.

       -s     Report heartbeat status.

       -R     Heartbeat restart exec flag (internal use  only).   May  not  be
              used with -r.

       -C     Heartbeat  current  resource  state  for  restart  (internal use
              only).  Only valid with -R.

       -V     Print out heartbeat version.

       Note that most of these options are used for supporting  the  heartbeat
       init  script,  which  provides the conventional start, stop, status and
       restart options (among others). It is recommended to  use  this  rather
       than invoking the heartbeat command directly.


       cl_status(1), apphbd(8)


       More information may be found at


       /etc/, /etc/haresources, /etc/authkeys


       heartbeat - Alan Robertson <> et al.
       man page - Juan Pedro Paredes Caballero <>
                  Horms <>

                                 12th May 2004                    HEARTBEAT(8)