What is heartbeat linux

heartbeat (8) — Linux Manuals

heartbeat: Heartbeat subsystem for High-Availability Linux

Command to display heartbeat manual in Linux: $ man 8 heartbeat

NAME

SYNOPSIS

DESCRIPTION

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 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-ha.org/

OPTIONS

-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 ha.cf or authkeys has changed it will start heartbeat or reread authkeys. May not be used 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.

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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.

DOCUMENTATION

FILES

AUTHORS

heartbeat — Alan Robertson et al. man page — Juan Pedro Paredes Caballero Horms

SEE ALSO

  • heimdal-ftpd (8) — Internet File Transfer Protocol server
  • heimdal-kadmin (8) — Kerberos administration utility
  • heimdal-kadmind (8) — server for administrative access to Kerberos database
  • heimdal-ktutil (8) — manage Kerberos keytabs
  • heimdal-rshd (8) — remote shell server
  • heimdal-telnetd (8) — DARPA

Источник

What is heartbeat linux

NAME

heartbeat - Heartbeat subsystem for High-Availability Linux

DESCRIPTION

OPTIONS

The following options are supported by heartbeat: -d Increment 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

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

© 2019 Canonical Ltd. Ubuntu and Canonical are registered trademarks of Canonical Ltd.

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Источник

What is heartbeat linux

NAME

heartbeat - Heartbeat subsystem for High-Availability Linux

DESCRIPTION

OPTIONS

The following options are supported by heartbeat: -d Increment 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

AUTHORS

Alan Robertson alanr@unix.sh> heartbeat Lars Ellenberg lars.ellenberg@linbit.com> Heartbeat Maintainer; code fixes; documentation updates 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

© 2019 Canonical Ltd. Ubuntu and Canonical are registered trademarks of Canonical Ltd.

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