[pgpool-general: 5538] Re: have lots of CLOSE_WAIT in pgpool 3.6.2

Tatsuo Ishii ishii at sraoss.co.jp
Wed May 31 07:51:23 JST 2017

> Hello
> We have upgraded to pgpool 3.6.2 (pgpool-II-pg96-3.6.2-1pgdg.rhel6.x86_64.rpm<https://arm.mo.ca.am.ericsson.se/artifactory/proj-mdn-yum-local/builds/ops/3pp/pgpool-II-pg96-3.6.2-1pgdg.rhel6.x86_64.rpm>)

That's not our official RPM
(http://pgpool.net/mediawiki/index.php/Downloads), so I cannot comment
on this. Moreover, 3.6.2 is not the latest one. But...

> And we got many CLOSE_WAIT in the pgpool node, and pgpool seems hangs (application cannot connect to DB after this)
> The restart of the pgpool process will fix the CLOSE_WAIT, but then it will happened after running a while.
> We don't have this problem when we use pgpool 3.5.2
> Is this a old problem in new release?

No I know of.

> Is there any fix for this?

If you could provide a reliable way to reproduce the problem, I can
study it.

Best regards,
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php

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