08-03-2019
Quote:
Originally Posted by
jim mcnamara
I've stayed away because I could not get past the dsh -w
AIX dsh and linux dash (sometimes dsh) do not have a -w option. Per manpages for both. What does that do -- dsh -w ?
So I'm not sure what is going on. Plus the whole code design concept seems to me to be based on 'one-liner' thinking. Which is cool but not always maintainable as you are finding out.
It looks like you are trying to kill processes with files open - somewhere special. What OS and shell are you using?
I am using AIX. Normally dsh runs a command against all of your servers in your server list. When you add the -w option to dsh it allows you to select which server you want to run your command on. In my case I want to run my command on server1. I could run my command without the -w option but it would be harder to debug my problem.
I am not very good at using multiple single and double quotes, and escaping. I think that is my issue.
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LEARN ABOUT DEBIAN
ganeti-listrunner
ganeti-listrunner(8) Version 2.5.2 ganeti-listrunner(8)
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@google-
groups.com).
SEE ALSO
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-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-masterd(8) (master 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).
COPYRIGHT
Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 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.
Ganeti ganeti-listrunner(8)