Provided by: ganeti-2.15_2.15.2-3_all bug

Name

       ganeti-confd - Ganeti conf daemon

Synopsis

       ganeti-confd    [-f]   [-d]   [--syslog]   [-p   PORT]   [-b   ADDRESS]
       [--no-user-checks]

DESCRIPTION

       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.

       Logging to syslog, rather than its own log  file,  can  be  enabled  by
       passing in the --syslog option.

       The ganeti-confd daemon listens to port 1814 UDP, on all interfaces, by
       default.  The port can be overridden by an entry the services  database
       (usually /etc/services) or by passing the -p option.  The -b option can
       be used to specify the address to bind to (defaults to 0.0.0.0).

       The daemon will refuse to start if the user and group do not match  the
       one  defined  at  build  time;  this behaviour can be overridden by the
       --no-user-checks option.

   ROLE
       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
       answer.

       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.

   COMMUNICATION PROTOCOL
       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.

REPORTING BUGS

       Report bugs to project  website  (http://code.google.com/p/ganeti/)  or
       contact    the    developers    using    the    Ganeti   mailing   list
       (ganeti@googlegroups.com).

SEE ALSO

       Ganeti  overview  and  specifications:  ganeti(7)  (general  overview),
       ganeti-os-interface(7)          (guest         OS         definitions),
       ganeti-extstorage-interface(7) (external storage providers).

       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-storage(8)  (storage commands), gnt-group(8) (node group commands),
       gnt-backup(8) (instance import/export  commands),  gnt-debug(8)  (debug
       commands).

       Ganeti   daemons:  ganeti-watcher(8)  (automatic  instance  restarter),
       ganeti-cleaner(8) (job queue cleaner), ganeti-noded(8)  (node  daemon),
       ganeti-rapi(8) (remote API daemon).

       Ganeti  htools: htools(1) (generic binary), hbal(1) (cluster balancer),
       hspace(1) (capacity calculation), hail(1) (IAllocator plugin), hscan(1)
       (data  gatherer  from  remote  clusters), hinfo(1) (cluster information
       printer), mon-collector(7) (data collectors interface).

COPYRIGHT

       Copyright (C) 2006-2015 Google Inc.  All rights reserved.

       Redistribution and use in source and  binary  forms,  with  or  without
       modification,  are permitted provided that the following conditions are
       met:

       1.  Redistributions of source code  must  retain  the  above  copyright
       notice, this list of conditions and the following disclaimer.

       2.   Redistributions  in binary form must reproduce the above copyright
       notice, this list of conditions and the  following  disclaimer  in  the
       documentation and/or other materials provided with the distribution.

       THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
       IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT  NOT  LIMITED
       TO,  THE  IMPLIED  WARRANTIES  OF  MERCHANTABILITY  AND  FITNESS  FOR A
       PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO  EVENT  SHALL  THE  COPYRIGHT
       HOLDER  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
       SPECIAL,  EXEMPLARY,  OR  CONSEQUENTIAL  DAMAGES  (INCLUDING,  BUT  NOT
       LIMITED  TO,  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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       THEORY  OF  LIABILITY,  WHETHER  IN CONTRACT, STRICT LIABILITY, OR TORT
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