<div dir="ltr">Thanks Yugo, that works perfectly.</div><div class="gmail_extra"><br><br><div class="gmail_quote">On 18 April 2014 09:13, Yugo Nagata <span dir="ltr"><<a href="mailto:nagata@sraoss.co.jp" target="_blank">nagata@sraoss.co.jp</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
On Thu, 17 Apr 2014 16:52:55 +0100<br>
Sam Lancia <<a href="mailto:sam@gpsm.co.uk">sam@gpsm.co.uk</a>> wrote:<br>
<br>
> Hi there,<br>
> Is there a way to programatically query the primary node of a master/slaves<br>
> architecture over pcp? Currently I am grepping the log for "primary node<br>
<br>
No. pcp command can't say which node is parimary/master. Instead you can use<br>
"SHOW pool_nodes" SQL command.<br>
<br>
$ psql -p 11002 test -c "show pool_nodes"<br>
node_id | hostname | port | status | lb_weight | role<br>
---------+----------+-------+--------+-----------+--------<br>
0 | /tmp | 11000 | 2 | 0.500000 | master<br>
1 | /tmp | 11001 | 2 | 0.500000 | slave<br>
(2 rows)<br>
<br>
<br>
<br>
> is", which seems a bit of a fudge!<br>
> Many thanks,fudge<br>
> Sam<br>
<span class="HOEnZb"><font color="#888888"><br>
<br>
--<br>
Yugo Nagata <<a href="mailto:nagata@sraoss.co.jp">nagata@sraoss.co.jp</a>><br>
</font></span></blockquote></div><br></div>