table of contents
HEARTBEAT(8) | System administration utilitie | HEARTBEAT(8) |
NAME¶
heartbeat - Heartbeat subsystem for High-Availability LinuxDESCRIPTION¶
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:•UDP/IP broadcast;
•UDP/IP multicast;
•UDP/IP unicast;
•Bidirectional Serial Rings ("raw"
serial ports) — this type is deprecated and should no longer be
used;
•special "ping" heartbeats for routers,
etc. — this type has been superseded by functionality in
pacemaker() and should no longer be used.
Comprehensive documentation on heartbeat is available in the Heartbeat User's
Guide. If this documentation is not installed on your system, it can be found
at http://linux-ha.org/.
OPTIONS¶
The following options are supported by heartbeat: -dIncrement debugging level. Higher levels are more
verbose.
-r
Reload heartbeat. This option is functionally identical
to sending a running heartbeat process a HUP signal. If the configuration has
not changed, then this option is essentially a no-op. If ha.cf(5) or
authkeys(5) has changed, then heartbeat will re-read these files and
update its configuration.
This option may not be used together with -R.
-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.
SEE ALSO¶
ha.cf(5), authkeys(5)AUTHORS¶
Alan Robertson <alanr@unix.sh>heartbeat
Juan Pedro Paredes Caballero <juampe@retemail.es>
man page
Simon Horman <horms@verge.net.au>
man page
Florian Haas <florian.haas@linbit.com>
man page
24 Nov 2009 | Heartbeat 3.0.5 |