.\" Title: onnode
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
-.\" Date: 10/06/2009
+.\" Date: 10/22/2009
.\" Manual: [FIXME: manual]
.\" Source: [FIXME: source]
.\" Language: English
.\"
-.TH "ONNODE" "1" "10/06/2009" "[FIXME: source]" "[FIXME: manual]"
+.TH "ONNODE" "1" "10/22/2009" "[FIXME: source]" "[FIXME: manual]"
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
Do not print node addresses\&. Normally, onnode prints informational node addresses if more than one node is specified\&. This overrides \-v\&.
.RE
.PP
+\-n
+.RS 4
+Allow nodes to be specified by name rather than node numbers\&. These nodes don\'t need to be listed in the nodes file\&. You can avoid the nodes file entirely by combining this with
+\-f /dev/null\&.
+.RE
+.PP
+\-f <file>
+.RS 4
+Specify an alternative nodes file to use instead of
+/etc/ctdb/nodes\&. This overrides the CTDB_NODES_FILE environment variable\&.
+.RE
+.PP
\-v
.RS 4
Print a node addresses even if only one node is specified\&. Normally, onnode prints informational node addresses when more than one node is specified\&.
-<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>onnode</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" title="onnode"><a name="onnode.1"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>onnode — run commands on ctdb nodes</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">onnode [OPTION] ... NODES COMMAND ...</code> </p></div></div><div class="refsect1" title="DESCRIPTION"><a name="id27
11756"></a><h2>DESCRIPTION</h2><p>
+<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>onnode</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" title="onnode"><a name="onnode.1"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>onnode — run commands on ctdb nodes</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">onnode [OPTION] ... NODES COMMAND ...</code> </p></div></div><div class="refsect1" title="DESCRIPTION"><a name="id27
77487"></a><h2>DESCRIPTION</h2><p>
onnode is a utility to run commands on a specific node of a CTDB
cluster, or on all nodes.
</p><p>
</p><p>
The COMMAND can be any shell command. The onnode utility uses
ssh or rsh to connect to the remote nodes and run the command.
- </p></div><div class="refsect1" title="DESCRIPTIVE NODE SPECIFICATIONS"><a name="id27
11784"></a><h2>DESCRIPTIVE NODE SPECIFICATIONS</h2><p>
+ </p></div><div class="refsect1" title="DESCRIPTIVE NODE SPECIFICATIONS"><a name="id27
39103"></a><h2>DESCRIPTIVE NODE SPECIFICATIONS</h2><p>
The following descriptive node specification can be used in
place of numeric node numbers:
</p><div class="variablelist"><dl><dt><span class="term">all</span></dt><dd><p>
The current NAT gateway.
</p></dd><dt><span class="term">rm | recmaster</span></dt><dd><p>
The current recovery master.
- </p></dd></dl></div></div><div class="refsect1" title="OPTIONS"><a name="id27
11252"></a><h2>OPTIONS</h2><div class="variablelist"><dl><dt><span class="term">-c</span></dt><dd><p>
+ </p></dd></dl></div></div><div class="refsect1" title="OPTIONS"><a name="id27
42732"></a><h2>OPTIONS</h2><div class="variablelist"><dl><dt><span class="term">-c</span></dt><dd><p>
Execute COMMAND in the current working directory on the
specified nodes.
</p></dd><dt><span class="term">-o <prefix></span></dt><dd><p>
Do not print node addresses. Normally, onnode prints
informational node addresses if more than one node is
specified. This overrides -v.
+ </p></dd><dt><span class="term">-n</span></dt><dd><p>
+ Allow nodes to be specified by name rather than node
+ numbers. These nodes don't need to be listed in the nodes
+ file. You can avoid the nodes file entirely by combining
+ this with <code class="code">-f /dev/null</code>.
+ </p></dd><dt><span class="term">-f <file></span></dt><dd><p>
+ Specify an alternative nodes file to use instead of
+ <code class="filename">/etc/ctdb/nodes</code>. This overrides the
+ CTDB_NODES_FILE environment variable.
</p></dd><dt><span class="term">-v</span></dt><dd><p>
Print a node addresses even if only one node is specified.
Normally, onnode prints informational node addresses when
more than one node is specified.
</p></dd><dt><span class="term">-h, --help</span></dt><dd><p>
Show a short usage guide.
- </p></dd></dl></div></div><div class="refsect1" title="EXAMPLES"><a name="id27
11346"></a><h2>EXAMPLES</h2><p>
+ </p></dd></dl></div></div><div class="refsect1" title="EXAMPLES"><a name="id27
42865"></a><h2>EXAMPLES</h2><p>
The following command would show the process ID of ctdb on all nodes
</p><pre class="screen">
onnode all pidof ctdbd
directory, in parallel, on nodes 0, 2, 3 and 4.
</p><pre class="screen">
onnode -c -p 0,2-4 ./foo
- </pre></div><div class="refsect1" title="ENVIRONMENT"><a name="id27
11396"></a><h2>ENVIRONMENT</h2><div class="variablelist"><dl><dt><span class="term"><code class="envar">CTDB_NODES_FILE</code></span></dt><dd><p>
+ </pre></div><div class="refsect1" title="ENVIRONMENT"><a name="id27
42916"></a><h2>ENVIRONMENT</h2><div class="variablelist"><dl><dt><span class="term"><code class="envar">CTDB_NODES_FILE</code></span></dt><dd><p>
Name of alternative nodes file to use instead of
<code class="filename">/etc/ctdb/nodes</code>.
- </p></dd></dl></div></div><div class="refsect1" title="FILES"><a name="id27
11425"></a><h2>FILES</h2><div class="variablelist"><dl><dt><span class="term"><code class="filename">/etc/ctdb/nodes</code></span></dt><dd><p>
+ </p></dd></dl></div></div><div class="refsect1" title="FILES"><a name="id27
42944"></a><h2>FILES</h2><div class="variablelist"><dl><dt><span class="term"><code class="filename">/etc/ctdb/nodes</code></span></dt><dd><p>
Default file containing a list of each node's IP address
or hostname.
</p></dd><dt><span class="term"><code class="filename">/etc/ctdb/onnode.conf</code></span></dt><dd><p>
something other than "ssh". In this case the -t option is
ignored. For example, the administrator may choose to use
use rsh instead of ssh.
- </p></dd></dl></div></div><div class="refsect1" title="SEE ALSO"><a name="id27
11471"></a><h2>SEE ALSO</h2><p>
+ </p></dd></dl></div></div><div class="refsect1" title="SEE ALSO"><a name="id27
91501"></a><h2>SEE ALSO</h2><p>
ctdbd(1), ctdb(1), <a class="ulink" href="http://ctdb.samba.org/" target="_top">http://ctdb.samba.org/</a>
- </p></div><div class="refsect1" title="COPYRIGHT/LICENSE"><a name="id27
11483"></a><h2>COPYRIGHT/LICENSE</h2><div class="literallayout"><p><br>
+ </p></div><div class="refsect1" title="COPYRIGHT/LICENSE"><a name="id27
91514"></a><h2>COPYRIGHT/LICENSE</h2><div class="literallayout"><p><br>
Copyright (C) Andrew Tridgell 2007<br>
Copyright (C) Ronnie sahlberg 2007<br>
Copyright (C) Martin Schwenke 2008<br>
git.samba.org / sahlberg / ctdb.git / commitdiff