Man Linux: Main Page and Category List


       ganeti-confd - ganeti conf daemon


       ganeti-confd  [ -f ] [ -d ]


       ganeti-confd  is  a  daemon  used  to  answer  queries  related  to the
       configuration of a Ganeti cluster.

       For testing purposes, you can give the -f option and the program  won’t
       detach from the running terminal.

       Debug-level message can be activated by giving the -d option.

       The  role of the conf daemon is to make sure we have a highly available
       and very fast way to query cluster configuration values. This daemon is
       automatically  active  on  all  master candidates, and so has no single
       point of failure. It communicates via UDP so each query can  easily  be
       sent  to multiple servers, and it answers queries from a cached copy of
       the config it keeps in memory, so no disk access is required to get  an

       The  config is reloaded from disk automatically when it changes, with a
       rate limit of once per second.

       If the conf daemon is stopped on all nodes, its clients won’t  be  able
       to get query answers.

       The confd protocol is an HMAC authenticated json-encoded custom format,
       over UDP. A client library  is  provided  to  make  it  easy  to  write
       software  to  query  confd. More information can be found in the Ganeti
       2.1 design doc, and an example usage can be seen in the (external) nbma
       daemon for ganeti.


       Report  bugs  to  <URL:> or contact the
       developers using the ganeti mailing list <>.


       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.