[Pgpool-general] Zombies roaming the server

[Yoshiyuki Asaba]

Hi,

From: "Bruno Lustosa" <bruno.lists at gmail.com>
Subject: Re: [Pgpool-general] Zombies roaming the server
Date: Tue, 19 Feb 2008 10:50:33 -0300

> There are lots of these between 04:14 and 05:12. Really lots.
> 
> 2008-02-19 04:14:06 ERROR: pid 8547: pool_check_fd: data is not ready
> tp->tv_sec 5 tp->tp_usec 5000000
> 2008-02-19 04:14:06 ERROR: pid 8547: pool_read: pool_check_fd failed (Success)
> 2008-02-19 04:14:06 ERROR: pid 8547: pool_process_query: failed to
> read kind from 0 th backend
> 2008-02-19 04:14:06 LOG:   pid 8547: do_child: exits with status 1 due to error

I've fixed by the following commit.

http://lists.pgfoundry.org/pipermail/pgpool-committers/2008-February/000647.html

replication_strict parameter was removed in pgpool-II 2.0. However,
replication_timeout was not removed.


> After that, the database goes offline with messages like this (there
> are a few of the previous too):
> 
> 2008-02-19 05:12:44 ERROR: pid 10141: pool_read_kind: kind does not
> match between master(69) slot[1] (83)
> 2008-02-19 05:12:44 ERROR: pid 10141: pool_do_auth: failed to read
> kind before BackendKeyData

It seems that client authentication was failed on backend_hostname0.
Could you show me PostgreSQL's log file on backend_hostname0?

Regards,
--
Yoshiyuki Asaba
y-asaba at sraoss.co.jp