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-'\" t
-.\" Title: onnode
-.\" Author:
-.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
-.\" Date: 09/23/2020
-.\" Manual: CTDB - clustered TDB database
-.\" Source: ctdb
-.\" Language: English
-.\"
-.TH "ONNODE" "1" "09/23/2020" "ctdb" "CTDB \- clustered TDB database"
-.\" -----------------------------------------------------------------
-.\" * Define some portability stuff
-.\" -----------------------------------------------------------------
-.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-.\" http://bugs.debian.org/507673
-.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
-.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-.ie \n(.g .ds Aq \(aq
-.el .ds Aq '
-.\" -----------------------------------------------------------------
-.\" * set default formatting
-.\" -----------------------------------------------------------------
-.\" disable hyphenation
-.nh
-.\" disable justification (adjust text to left margin only)
-.ad l
-.\" -----------------------------------------------------------------
-.\" * MAIN CONTENT STARTS HERE *
-.\" -----------------------------------------------------------------
-.SH "NAME"
-onnode \- run commands on CTDB cluster nodes
-.SH "SYNOPSIS"
-.HP \w'\fBonnode\fR\ 'u
-\fBonnode\fR [\fIOPTION\fR...] {\fINODES\fR} {\fICOMMAND\fR}
-.SH "DESCRIPTION"
-.PP
-onnode is a utility to run commands on a specific node of a CTDB cluster, or on all nodes\&.
-.PP
-\fINODES\fR
-specifies which node(s) to run a command on\&. See section
-NODES SPECIFICATION
-for details\&.
-.PP
-\fICOMMAND\fR
-can be any shell command\&. The onnode utility uses ssh or rsh to connect to the remote nodes and run the command\&.
-.SH "OPTIONS"
-.PP
-\-c
-.RS 4
-Execute COMMAND in the current working directory on the specified nodes\&.
-.RE
-.PP
-\-f \fIFILENAME\fR
-.RS 4
-Specify an alternative nodes FILENAME to use instead of the default\&. See the discussion of
-/usr/local/etc/ctdb/nodes
-in the FILES section for more details\&.
-.RE
-.PP
-\-i
-.RS 4
-Keep standard input open, allowing data to be piped to onnode\&. Normally onnode closes stdin to avoid surprises when scripting\&. Note that this option is ignored when using
-\fB\-p\fR
-or if
-\fBONNODE_SSH\fR
-is set to anything other than "ssh"\&.
-.RE
-.PP
-\-n
-.RS 4
-Allow nodes to be specified by name rather than node numbers\&. These nodes don\*(Aqt need to be listed in the nodes file\&. You can avoid the nodes file entirely by combining this with
-\-f /dev/null\&.
-.RE
-.PP
-\-p
-.RS 4
-Run COMMAND in parallel on the specified nodes\&. The default is to run COMMAND sequentially on each node\&.
-.RE
-.PP
-\-P
-.RS 4
-Push files to nodes\&. Names of files to push are specified rather than the usual command\&. Quoting is fragile/broken \- filenames with whitespace in them are not supported\&.
-.RE
-.PP
-\-q
-.RS 4
-Do not print node addresses\&. Normally, onnode prints informational node addresses if more than one node is specified\&. This overrides \-v\&.
-.RE
-.PP
-\-v
-.RS 4
-Print node addresses even if only one node is specified\&. Normally, onnode prints informational node addresses when more than one node is specified\&.
-.RE
-.PP
-\-h, \-\-help
-.RS 4
-Show a short usage guide\&.
-.RE
-.SH "NODES SPECIFICATION"
-.PP
-Nodes can be specified via numeric node numbers (from 0 to N\-1) or mnemonics\&. Multiple nodes are specified using lists of nodes, separated by commas, and ranges of numeric node numbers, separated by dashes\&. If nodes are specified multiple times then the command will be executed multiple times on those nodes\&. The order of nodes is significant\&.
-.PP
-The following mnemonics are available:
-.PP
-all
-.RS 4
-All nodes\&.
-.RE
-.PP
-any
-.RS 4
-A node where ctdbd is running\&. This semi\-random but there is a bias towards choosing a low numbered node\&.
-.RE
-.PP
-ok | healthy
-.RS 4
-All nodes that are not disconnected, banned, disabled or unhealthy\&.
-.RE
-.PP
-con | connected
-.RS 4
-All nodes that are not disconnected\&.
-.RE
-.SH "EXAMPLES"
-.PP
-The following command would show the process ID of ctdbd on all nodes
-.sp
-.if n \{\
-.RS 4
-.\}
-.nf
- onnode all ctdb getpid
-
-.fi
-.if n \{\
-.RE
-.\}
-.PP
-The following command would show the last 5 lines of log on each node, preceded by the node\*(Aqs hostname
-.sp
-.if n \{\
-.RS 4
-.\}
-.nf
- onnode all "hostname; tail \-5 /var/log/log\&.ctdb"
-
-.fi
-.if n \{\
-.RE
-.\}
-.PP
-The following command would restart the ctdb service on all nodes, in parallel\&.
-.sp
-.if n \{\
-.RS 4
-.\}
-.nf
- onnode \-p all service ctdb restart
-
-.fi
-.if n \{\
-.RE
-.\}
-.PP
-The following command would run \&./foo in the current working directory, in parallel, on nodes 0, 2, 3 and 4\&.
-.sp
-.if n \{\
-.RS 4
-.\}
-.nf
- onnode \-c \-p 0,2\-4 \&./foo
-
-.fi
-.if n \{\
-.RE
-.\}
-.SH "FILES"
-.PP
-/usr/local/etc/ctdb/nodes
-.RS 4
-Default file containing a list of each node\*(Aqs IP address or hostname\&.
-.sp
-As above, a file specified via the
-\fB\-f\fR
-is given precedence\&. If a relative path is specified and no corresponding file exists relative to the current directory then the file is also searched for in the CTDB configuration directory\&.
-.sp
-Otherwise the default is
-/usr/local/etc/ctdb/nodes\&.
-.RE
-.PP
-/usr/local/etc/ctdb/onnode\&.conf
-.RS 4
-If this file exists it is sourced by onnode\&. The main purpose is to allow the administrator to set
-\fBONNODE_SSH\fR
-to something other than "ssh"\&. In this case the \-t option is ignored\&.
-.RE
-.SH "SEE ALSO"
-.PP
-\fBctdb\fR(7),
-\m[blue]\fB\%http://ctdb.samba.org/\fR\m[]
-.SH "AUTHOR"
-.br
-.PP
-This documentation was written by Andrew Tridgell, Martin Schwenke
-.SH "COPYRIGHT"
-.br
-Copyright \(co 2007 Andrew Tridgell, Ronnie Sahlberg
-.br
-Copyright \(co 2008 Martin Schwenke
-.br
-.PP
-This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version\&.
-.PP
-This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE\&. See the GNU General Public License for more details\&.
-.PP
-You should have received a copy of the GNU General Public License along with this program; if not, see
-\m[blue]\fB\%http://www.gnu.org/licenses\fR\m[]\&.
-.sp