Provided by: ganeti2_2.0.5-1_all
ganeti-watcher - ganeti cluster watcher
The ganeti-watcher is a periodically run script which is responsible
for keeping the instances in the correct status.
Its primary function is to try to keep running all instances which are
marked as up in the configuration file, by trying to start them a
limited number of times.
Its other function is to ‘‘repair’’ DRBD links by reactivating the
block devices of instances which have secondaries on nodes that have
The watcher does synchronous queries but will submit jobs for executing
the changes. Due to locking, it could be that the jobs execute much
later than the watcher executes them.
The command has a state file located at /var/lib/ganeti/watcher.data
and a log file at /var/log/ganeti/watcher.log. Removal of either file
will not affect correct operation; the removal of the state file will
just cause the restart counters for the instances to reset to zero.
Report bugs to <URL:http://code.google.com/p/ganeti/> or contact the
developers using the ganeti mailing list <firstname.lastname@example.org>.
Ganeti overview and specifications: ganeti(7) (general overview),
ganeti-os-interface(7) (guest OS definitions).
Ganeti commands: gnt-cluster(8) (cluster-wide commands), gnt-job(8)
(job-related commands), gnt-node(8) (node-related commands), gnt-
instance(8) (instance commands), gnt-os(8) (guest OS commands), gnt-
backup(8) (instance import/export commands), gnt-debug(8) (debug
Ganeti daemons: ganeti-watcher(8) (automatic instance restarter),
ganeti-cleaner(8) (job queue cleaner), ganeti-noded(8) (node daemon),
ganeti-masterd(8) (master daemon), ganeti-rapi(8) (remote API daemon).
Copyright (C) 2006, 2007, 2008, 2009 Google Inc. Permission is granted
to copy, distribute and/or modify under the terms of the GNU General
Public License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
On Debian systems, the complete text of the GNU General Public License
can be found in /usr/share/common-licenses/GPL.