apphbd(8) - Linux man page
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 The functionality provided by apphbd has been replaced by resource-level monitoring in Pacemaker.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/lib64/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/lib64/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
• /var/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/lib64/heartbeat/plugins/AppHBNotification - directory containing plugins for apphbd.
- • 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.
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