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

NAME

       ganeti-listrunner - Run commands in parallel over multiple machines

SYNOPSIS

       ganeti-listrunner -l logdir {-x executable | -c shell-cmd} {-f hostfile
       | -h hostlist} [-a aux-file] [-b batch-size] [-u username] [-A]

DESCRIPTION

       ganeti-listrunner is a tool to run commands in parallel  over  multiple
       machines.   It  differs from dsh or other tools in that it asks for the
       password once (if not using ssh-agent) and then reuses the password  to
       connect  to all machines, thus being easily usable even when public key
       authentication or Kerberos authentication is not available.

       It can run either a command or a script (which gets uploaded first  and
       deleted  after execution) on a list of hosts provided either via a file
       (one host per line) or as a comma-separated list  on  the  commandline.
       The  output  (stdout  and stderr are merged) of the remote execution is
       written to a logfile.  One logfile per host is written.

OPTIONS

       The options that can be passed to the program are as follows:

       -l logdir
              The directory under which the logfiles files should be written.

       -x executable
              The executable to copy and run on the target hosts.

       -c shell-cmd
              The shell command to run on the remote hosts.

       -f hostfile
              The file with the target hosts, one hostname per line.

       -h hostlist
              Comma-separated list of target hosts.

       -a aux-file
              A file to copy to the  target  hosts.   Can  be  given  multiple
              times,  in  which case all files will be copied to the temporary
              directory.  The executable or the shell command will be run from
              the (temporary) directory where these files have been copied.

       -b batch-size
              The  host  list  will  be split into batches of batch-size which
              will be processed in parallel.  The default if 15, and should be
              increased if faster processing is needed.

       -u username
              Username to connect as instead of the default root username.

       -A     Use an existing ssh-agent instead of password authentication.

       --args Arguments to pass to executable (-x).

EXIT STATUS

       The  exist status of the command will be zero, unless it was aborted in
       some way (e.g.  ^C).

EXAMPLE

       Run a command on a list of hosts:

              listrunner -l logdir -c "uname -a" -h host1,host2,host3

       Upload a script, some auxiliary files and run the script:

              listrunner -l logdir -x runme.sh \
                -a seed.dat -a golden.dat \
                -h host1,host2,host3

SEE ALSO

       dsh(1), cssh(1)

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,
       DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND  ON  ANY
       THEORY  OF  LIABILITY,  WHETHER  IN CONTRACT, STRICT LIABILITY, OR TORT
       (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF  THE  USE
       OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.