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repmgr/doc/install-requirements.sgml

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<sect1 id="install-requirements" xreflabel="installation requirements">
<indexterm>
<primary>installation</primary>
<secondary>requirements</secondary>
</indexterm>
<title>Requirements for installing repmgr</title>
<para>
repmgr is developed and tested on Linux and OS X, but should work on any
UNIX-like system supported by PostgreSQL itself. There is no support for
Microsoft Windows.
</para>
<para>
From version 4.0, repmgr is compatible with all PostgreSQL versions from 9.3.
Note that some &repmgr; functionality is not available in PostgreSQL 9.3 and PostgreSQL 9.4.
</para>
<note>
<simpara>
If upgrading from &repmgr; 3.x, please see the section <xref linkend="upgrading-from-repmgr-3">.
</simpara>
</note>
<para>
All servers in the replication cluster must be running the same major version of
PostgreSQL, and we recommend that they also run the same minor version.
</para>
<para>
&repmgr; must be installed on each server in the replication cluster.
If installing repmgr from packages, the package version must match the PostgreSQL
version. If installing from source, &repmgr; must be compiled against the same
major version.
</para>
<para>
A dedicated system user for &repmgr; is <emphasis>not</emphasis> required; as many &repmgr; and
<application>repmgrd</application> actions require direct access to the PostgreSQL data directory,
these commands should be executed by the <literal>postgres</literal> user.
</para>
<para>
See also <link linkend="configuration-prerequisites">Prerequisites for configuration</link>
for information on networking requirements.
</para>
<tip>
<simpara>
We recommend using a session multiplexer utility such as <command>screen</command> or
<command>tmux</command> when performing long-running actions (such as cloning a database)
on a remote server - this will ensure the &repmgr; action won't be prematurely
terminated if your <command>ssh</command> session to the server is interrupted or closed.
</simpara>
</tip>
</sect1>