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93 lines
2.8 KiB
XML
93 lines
2.8 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
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<refentry id="onnode.1">
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<refmeta>
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<refentrytitle>onnode</refentrytitle>
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<manvolnum>1</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>onnode</refname>
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<refpurpose>run commands on ctdb nodes</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>onnode NODE COMMAND ...</command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1><title>DESCRIPTION</title>
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<para>
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onnode is a utility to run commands on a specific node of a CTDB
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cluster, or on all nodes.
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</para>
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<para>
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The NODE option specifies which node to run a command on. You
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can specify a numeric node number (from 0 to N-1) or the special
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node 'all'.
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</para>
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<para>
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The COMMAND can be any shell command. The onnode utility uses
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ssh or rsh to connect to the remote nodes and run the command.
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</para>
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<para>
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If the COMMAND starts with a /, then the command is run via the
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'at' service. Otherwise the command is run in the foreground.
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</para>
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</refsect1>
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<refsect1><title>EXAMPLES</title>
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<para>
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The following command would show the process ID of ctdb on all nodes
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</para>
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<screen format="linespecific">
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onnode all pidof ctdbd
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</screen>
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<para>
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The following command would show the last 5 lines of log on each
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node, preceded by the nodes hostname
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</para>
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<screen format="linespecific">
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onnode all "hostname; tail -5 /var/log/log.ctdb"
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</screen>
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<para>
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The following command would restart the ctdb service on all nodes.
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</para>
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<screen format="linespecific">
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onnode all service ctdb restart
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</screen>
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</refsect1>
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<refsect1><title>SEE ALSO</title>
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<para>
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ctdbd(1), ctdb(1), <ulink url="http://ctdb.samba.org/"/>
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</para>
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</refsect1>
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<refsect1><title>COPYRIGHT/LICENSE</title>
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<literallayout>
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Copyright (C) Andrew Tridgell 2007
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Copyright (C) Ronnie sahlberg 2007
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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</literallayout>
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</refsect1>
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</refentry>
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