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daemon status: add column "upstream last seen"

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This displays the interval (in seconds) since the repmgrd instance on
each node last confirmed its upstream node is available.
This commit is contained in:
Ian Barwick
2019-02-23 12:16:34 +09:00
parent 71d151ca87
commit 07097575b1
6 changed files with 91 additions and 31 deletions
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8
doc/appendix-release-notes.sgml
View File

@@ -79,6 +79,14 @@ REPMGRD_OPTS="--daemonize=false"</programlisting>
</note>
</listitem>
<listitem>
<para>
<link linkend="repmgr-daemon-status"><command>repmgr daemon status</command></link>
displays the interval (in seconds) since the <application>repmgrd</application> instance
last verified its upstream node was available.
</para>
</listitem>
<listitem>
<para>
Add <option>--compact</option> option to <command><link linkend="repmgr-cluster-show">repmgr cluster show</link></command> (GitHub #521).

55
doc/repmgr-daemon-status.sgml
View File

@@ -49,33 +49,34 @@
<para>
<application>repmgrd</application> running normally on all nodes:
<programlisting>$ repmgr -f /etc/repmgr.conf daemon status
ID | Name | Role | Priority | Status | repmgrd | PID | Paused?
----+-------+---------+----------+---------+---------+------+---------
1 | node1 | primary | 100 | running | running | 5722 | no
2 | node2 | standby | 100 | running | running | 5731 | no
3 | node3 | standby | 100 | running | running | 5779 | no</programlisting>
ID | Name | Role | Priority | Status | repmgrd | PID | Paused? | Upstream last seen
----+-------+---------+----------+---------+---------+-------+---------+--------------------
1 | node1 | primary | 100 | running | running | 71987 | no | n/a
2 | node2 | standby | 100 | running | running | 71996 | no | 1 second(s) ago
3 | node3 | standby | 100 | running | running | 72042 | no | 1 second(s) ago
</programlisting>
</para>
<para>
<application>repmgrd</application> paused on all nodes (using <xref linkend="repmgr-daemon-pause">):
<programlisting>$ repmgr -f /etc/repmgr.conf daemon status
ID | Name | Role | Priority | Status | repmgrd | PID | Paused?
----+-------+---------+----------+---------+---------+------+---------
1 | node1 | primary | 100 | running | running | 5722 | yes
2 | node2 | standby | 100 | running | running | 5731 | yes
3 | node3 | standby | 100 | running | running | 5779 | yes</programlisting>
ID | Name | Role | Priority | Status | repmgrd | PID | Paused? | Upstream last seen
----+-------+---------+----------+---------+---------+-------+---------+--------------------
1 | node1 | primary | 100 | running | running | 71987 | yes | n/a
2 | node2 | standby | 100 | running | running | 71996 | yes | 0 second(s) ago
3 | node3 | standby | 100 | running | running | 72042 | yes | 0 second(s) ago
</programlisting>
</para>
<para>
<application>repmgrd</application> not running on one node:
<programlisting>$ repmgr -f /etc/repmgr.conf daemon status
ID | Name | Role | Priority | Status | repmgrd | PID | Paused?
----+-------+---------+----------+---------+-------------+------+---------
1 | node1 | primary | 100 | running | running | 5722 | yes
2 | node2 | standby | 100 | running | not running | n/a | n/a
3 | node3 | standby | 100 | running | running | 5779 | yes</programlisting>
ID | Name | Role | Priority | Status | repmgrd | PID | Paused? | Upstream last seen
----+-------+---------+----------+---------+-------------+-------+---------+--------------------
1 | node1 | primary | 100 | running | running | 71987 | yes | n/a
2 | node2 | standby | 100 | running | not running | n/a | n/a | n/a
3 | node3 | standby | 100 | running | running | 72042 | yes | 0 second(s) ago</programlisting>
</para>
</refsect1>
<refsect1>
@@ -92,9 +93,9 @@
parsing by scripts, e.g.:
<programlisting>
$ repmgr -f /etc/repmgr.conf daemon status --csv
1,node1,primary,1,1,5722,1,100
2,node2,standby,1,0,-1,1,100
3,node3,standby,1,1,5779,1,100</programlisting>
1,node1,primary,1,1,5722,1,100,-1
2,node2,standby,1,0,-1,1,100,1
3,node3,standby,1,1,5779,1,100,1</programlisting>
</para>
<para>
The columns have following meanings:
@@ -141,11 +142,17 @@
</simpara>
</listitem>
<listitem>
<simpara>
<application>repmgrd</application> priority
</simpara>
</listitem>
<listitem>
<simpara>
<application>repmgrd</application> node priority
</simpara>
</listitem>
<listitem>
<simpara>
interval in seconds since the node's upstream was last seen
</simpara>
</listitem>
</itemizedlist>
</para>