[Pgpool-general] what does "ProcessFrontendResponse: failed to read kind from frontend. frontend abnormally exited" mean?

[Tatsuo Ishii]

Well, your clients might be ill-behaved:-)

PostgreSQL's protocol requires clients to send particular packet
before they disconnect the connection. pgpool-II complains that clients
disconnect without sending the packet.

You could reprodcude the problem by using psql. Connect to pgpool
using psql. Kill -9 psql. You will silimar message in the log. The
message will not appear if you quit psql normaly.

Another possibility is unstable network connection between your client
machine and pgpool-II. Check the cable and network interface card.
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp

> What do such messages mean?
> 
> May 10 18:10:02 db10 pgpool: 2011-05-10 18:10:02 LOG:   pid 29142: ProcessFrontendResponse: failed to read kind from frontend. frontend abnormally exited
> May 10 18:10:02 db10 pgpool: 2011-05-10 18:10:02 LOG:   pid 29118: ProcessFrontendResponse: failed to read kind from frontend. frontend abnormally exited
> 
> 
> I get them in my syslog around 40 times per hour.
> 
> 
> Is that anything good? Anything bad? Neutral?
> Other than that, everything else seem to be working correctly.
> 
> 
> -- 
> Tomasz Chmielewski
> http://wpkg.org
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