apphbd - Application Heartbeat Monitor for High-Availability Linux

Authors

AlanRobertson <alanr@unix.sh>
           apphbd

       AndreaBrugger <andrea.l.brugger@intel.com>
           man page

       FlorianHaas <florian.haas@linbit.com>
           man page

Heartbeat 3.0.6                                 November 26, 2009                                      APPHBD(8)

Description

Warningapphbd is deprecated; its use is strongly discouraged. The functionality provided by apphbd has been
           replaced by resource-level monitoring in Pacemaker.

       /usr/libexec/heartbeat/apphbd is a basic application heartbeat monitor daemon for Linux-HA. A group of
       Application Heartbeat APIs are defined for this heartbeat monitoring service. Applications may register
       with the daemon in order to be monitored. If an application fails to send a heartbeat within the
       specified interval, the daemon will log an event.

       apphbd may use a watchdog timer to monitor itself.

       apphbd extends its functionality by using plugins. A plugin, recmgr notifies the recovery manager daemon
       if certain events occur (e.g. an application fails to heartbeat).

       The Recovery Manager daemon (/usr/libexec/heartbeat/recoverymgrd) receives notification from the recmgr
       plugin, then it tries to execute recovery scripts as configured. See the recoverymgrd default
       configuration file, recoverymgrd.conf for details.

       recoverymgrd registers itself with apphbd as a client application.  apphbd should be started first with
       the recmgr plugin loaded. Then, recoverymgrd should be configured and started

Files

       •   /run/apphbd.pid – default PID file

       •   apphbd.cf – Default configuration file for apphbd.  apphbd searches the file in its working
           directory.

       •   recoverymgrd.conf – default configuration file for recoverymgrd. recoverymgrd searches the file in
           its working directory. An alternative configuration file may be specified on the command line.

       •   /usr/lib/heartbeat/plugins/AppHBNotification – directory containing plugins for apphbd.

Name

       apphbd - Application Heartbeat Monitor for High-Availability Linux

Options

       The following options are supported:

       -s
           Show the status of apphbd, running or stopped.

       -k
           Stop (kill) the daemon.

       -r
           Restart the daemon.  apphbd will reload its configuration file when restarted.

       -dlevel
           Set the debug level.

       -h
           Show a brief usage message.

       -cfile
           Set an alternate configuration file. The default configuration file is ./apphbd.cf. For details on
           the file format and supported options, refer to the example apphbd.cf file found in the documentation
           directory.