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Note that most entries still need a bit more tidying up, consistent structuring, provision of more examples etc.
88 lines
2.5 KiB
Plaintext
88 lines
2.5 KiB
Plaintext
<refentry id="repmgr-node-check">
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<indexterm>
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<primary>repmgr node check</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>repmgr node check</refentrytitle>
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</refmeta>
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<refnamediv>
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<refname>repmgr node check</refname>
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<refpurpose>performs some health checks on a node from a replication perspective</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<para>
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Performs some health checks on a node from a replication perspective.
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This command must be run on the local node.
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</para>
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</refsect1>
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<refsect1>
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<title>Example</title>
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<para>
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<programlisting>
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$ repmgr -f /etc/repmgr.conf node check
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Node "node1":
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Server role: OK (node is primary)
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Replication lag: OK (N/A - node is primary)
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WAL archiving: OK (0 pending files)
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Downstream servers: OK (2 of 2 downstream nodes attached)
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Replication slots: OK (node has no replication slots)</programlisting>
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</para>
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</refsect1>
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<refsect1>
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<title>Individual checks</title>
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<para>
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Each check can be performed individually by supplying
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an additional command line parameter, e.g.:
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<programlisting>
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$ repmgr node check --role
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OK (node is primary)</programlisting>
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</para>
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<para>
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Parameters for individual checks are as follows:
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<itemizedlist spacing="compact" mark="bullet">
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<listitem>
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<simpara>
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<literal>--role</literal>: checks if the node has the expected role
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<literal>--replication-lag</literal>: checks if the node is lagging by more than
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<varname>replication_lag_warning</varname> or <varname>replication_lag_critical</varname>
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<literal>--archive-ready</literal>: checks for WAL files which have not yet been archived
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<literal>--downstream</literal>: checks that the expected downstream nodes are attached
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<literal>--slots</literal>: checks there are no inactive replication slots
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</simpara>
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</listitem>
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</itemizedlist>
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</para>
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<para>
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Individual checks can also be output in a Nagios-compatible format by additionally
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providing the option <literal>--nagios</literal>.
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</para>
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</refsect1>
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</refentry>
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