'\" t
.\" Title: onnode
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
-.\" Generator: DocBook XSL Stylesheets v1.75.1 <http://docbook.sf.net/>
-.\" Date: 12/08/2009
+.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
+.\" Date: 02/05/2010
.\" Manual:
.\" Source:
.\" Language: English
.\"
-.TH "ONNODE" "1" "12/08/2009" "" ""
+.TH "ONNODE" "1" "02/05/2010" "" ""
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.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\&.
+Specify an alternative nodes file to use instead of the default\&. This option overrides the CTDB_NODES_FILE environment variable\&. See the discussion of
+/etc/ctdb/nodes
+in the FILES section for more details\&.
.RE
.PP
\-v
.PP
\fBCTDB_NODES_FILE\fR
.RS 4
-Name of alternative nodes file to use instead of
-/etc/ctdb/nodes\&.
+Name of alternative nodes file to use instead of the default\&. See the discussion of
+/etc/ctdb/nodes
+in the FILES section for more details\&.
.RE
.SH "FILES"
.PP
/etc/ctdb/nodes
.RS 4
Default file containing a list of each node\'s IP address or hostname\&.
+.sp
+Actually, the default is
+$\fBCTDB_BASE\fR/nodes, where
+\fB$CTDB_BASE\fR
+defaults to
+/etc/ctdb\&. If a relative path is given (via the \-f option or
+\fB$CTDB_BASE\fR) and no corresponding file exists relative to the current directory then the file is also searched for in the
+$\fBCTDB_BASE\fR
+directory\&.
.RE
.PP
/etc/ctdb/onnode\&.conf
-<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.
1"></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="id268574"></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="id2602518"></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="id26
8596"></a><h2>DESCRIPTIVE NODE SPECIFICATIONS</h2><p>
+ </p></div><div class="refsect1" title="DESCRIPTIVE NODE SPECIFICATIONS"><a name="id26
02547"></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="id
310004"></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="id
2600718"></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>
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.
+ Specify an alternative nodes file to use instead of the
+ default. This option overrides the CTDB_NODES_FILE
+ environment variable. See the discussion of
+ <code class="filename">/etc/ctdb/nodes</code> in the FILES section
+ for more details.
</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="id
310128"></a><h2>EXAMPLES</h2><p>
+ </p></dd></dl></div></div><div class="refsect1" title="EXAMPLES"><a name="id
2600855"></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="id310172"></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="id310200"></a><h2>FILES</h2><div class="variablelist"><dl><dt><span class="term"><code class="filename">/etc/ctdb/nodes</code></span></dt><dd><p>
+ </pre></div><div class="refsect1" title="ENVIRONMENT"><a name="id2600905"></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 the
+ default. See the discussion of
+ <code class="filename">/etc/ctdb/nodes</code> in the FILES section
+ for more details.
+ </p></dd></dl></div></div><div class="refsect1" title="FILES"><a name="id2652169"></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><p>
+ Actually, the default is
+ <code class="filename">$<code class="envar">CTDB_BASE</code>/nodes</code>,
+ where <code class="envar">$CTDB_BASE</code> defaults to
+ <code class="filename">/etc/ctdb</code>. If a relative path is
+ given (via the -f option or <code class="envar">$CTDB_BASE</code>) and
+ no corresponding file exists relative to the current
+ directory then the file is also searched for in the
+ <code class="filename">$<code class="envar">CTDB_BASE</code></code> directory.
</p></dd><dt><span class="term"><code class="filename">/etc/ctdb/onnode.conf</code></span></dt><dd><p>
If this file exists it is sourced by onnode. The main
purpose is to allow the administrator to set $SSH to
something other than "ssh". In this case the -t option is
ignored. For example, the administrator may choose to use
use rsh instead of ssh.
- </p></dd></dl></div></div><div class="refsect1" title="SEE ALSO"><a name="id
310243"></a><h2>SEE ALSO</h2><p>
+ </p></dd></dl></div></div><div class="refsect1" title="SEE ALSO"><a name="id
2652258"></a><h2>SEE ALSO</h2><p>
ctdbd(1), ctdb(1), <a class="ulink" href="http://ctdb.samba.org/" target="_top">http://ctdb.samba.org/</a>
- </p></div><div class="refsect1" title="COPYRIGHT/LICENSE"><a name="id
310256"></a><h2>COPYRIGHT/LICENSE</h2><div class="literallayout"><p><br>
+ </p></div><div class="refsect1" title="COPYRIGHT/LICENSE"><a name="id
2652271"></a><h2>COPYRIGHT/LICENSE</h2><div class="literallayout"><p><br>
Copyright (C) Andrew Tridgell 2007<br>
Copyright (C) Ronnie sahlberg 2007<br>
Copyright (C) Martin Schwenke 2008<br>
<varlistentry><term>-f <file></term>
<listitem>
<para>
- Specify an alternative nodes file to use instead of
- <filename>/etc/ctdb/nodes</filename>. This overrides the
- CTDB_NODES_FILE environment variable.
+ Specify an alternative nodes file to use instead of the
+ default. This option overrides the CTDB_NODES_FILE
+ environment variable. See the discussion of
+ <filename>/etc/ctdb/nodes</filename> in the FILES section
+ for more details.
</para>
</listitem>
</varlistentry>
<varlistentry><term><envar>CTDB_NODES_FILE</envar></term>
<listitem>
<para>
- Name of alternative nodes file to use instead of
- <filename>/etc/ctdb/nodes</filename>.
+ Name of alternative nodes file to use instead of the
+ default. See the discussion of
+ <filename>/etc/ctdb/nodes</filename> in the FILES section
+ for more details.
</para>
</listitem>
</varlistentry>
Default file containing a list of each node's IP address
or hostname.
</para>
+ <para>
+ Actually, the default is
+ <filename>$<envar>CTDB_BASE</envar>/nodes</filename>,
+ where <envar>$CTDB_BASE</envar> defaults to
+ <filename>/etc/ctdb</filename>. If a relative path is
+ given (via the -f option or <envar>$CTDB_BASE</envar>) and
+ no corresponding file exists relative to the current
+ directory then the file is also searched for in the
+ <filename>$<envar>CTDB_BASE</envar></filename> directory.
+ </para>
</listitem>
</varlistentry>
git.samba.org / metze / ctdb / wip.git / commitdiff