<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">Hi Tatsuo,</div><div class="gmail_default" style="font-family:verdana,sans-serif">as attachments of this email you can find logs and configuration file.</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">Very kind regards.</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">Meph</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 26 March 2017 at 04:38, Tatsuo Ishii <span dir="ltr"><<a href="mailto:ishii@sraoss.co.jp" target="_blank">ishii@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"><span class="">> Hi there,<br>
> at the moment, I am using pgpool-II as load balancer in master-slave mode<br>
> with streaming replication with two postgres nodes. Pgpool is accessed by a<br>
> java server application that use a JDBC pool in Payara (a Glassfish fork)<br>
> application server.<br>
><br>
> During startup phase, the application execute about 1800 queries that are<br>
> almost all readonly stored functions, but pgpool send queries almost<br>
> exclusively toward primary node. This is the situation after some tries:<br>
><br>
><br>
><br>
> postgres@postgres=# show pool_nodes;<br>
> node_id | hostname | port | status | lb_weight | role |<br>
> select_cnt | load_balance_node | replication_delay<br>
> ---------+--------------------<wbr>-----+-------+--------+-------<br>
> ----+---------+------------+--<wbr>-----------------+------------<wbr>-------<br>
> 0 | <a href="http://citrix2.redevogames.com" rel="noreferrer" target="_blank">citrix2.redevogames.com</a> | 15004 | up | <a href="tel:0.250000" value="+390250000">0.250000</a> | primary |<br>
> 9520 | true | 0<br>
> 1 | 10.0.0.3 | 5997 | up | 0.750000 | standby |<br>
> 10 | false | 0<br>
><br>
> The question now is: is it a good idea to use a JDBC pool to connect to<br>
> pgpgool or is it better without it?<br>
><br>
><br>
> It can be other reason for this behavior of balancer?<br>
<br>
</span>There may be something which could explain this (for example<br>
replication delay is too much). Can you show me the pgpool log, along<br>
with log_per_node_statement = on?<br>
<br>
Best regards,<br>
--<br>
Tatsuo Ishii<br>
SRA OSS, Inc. Japan<br>
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</blockquote></div><br></div>