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Linux Cluster or HA
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APPHBD(8) System administration utilitie APPHBD(8) NAME
apphbd - Application Heartbeat Monitor for High-Availability Linux SYNOPSIS
apphbd [-srkdh] [-c file] DESCRIPTION
Warning apphbd is deprecated; its use is strongly discouraged. The functionality provided by apphbd has been replaced by resource-level monitoring in Pacemaker. /usr/lib/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/lib/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 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. -d level Set the debug level. -h Show a brief usage message. -c file 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. FILES
o /var/run/apphbd.pid - default PID file o apphbd.cf - Default configuration file for apphbd. apphbd searches the file in its working directory. o 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. o /usr/lib/heartbeat/plugins/AppHBNotification - directory containing plugins for apphbd. SEE ALSO
heartbeat(8) AUTHORS
Alan Robertson <alanr@unix.sh> apphbd Andrea Brugger <andrea.l.brugger@intel.com> man page Florian Haas <florian.haas@linbit.com> man page Heartbeat 3.0.5 November 26, 2009 APPHBD(8)
