RE: pgpool Connections Distributions Among Nodes

From: "Kumar, Virendra" <Virendra(dot)Kumar(at)guycarp(dot)com>
To: Glauco Torres <torres(dot)glauco(at)gmail(dot)com>
Cc: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: RE: pgpool Connections Distributions Among Nodes
Date: 2018-01-29 17:00:51
Message-ID: 46e347ef7b9845e8b66366d0a076ddc2@USFKL11XG20CN01.mercer.com
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Attached is config file.

[pgpool(at)usdf23v0550 ~]$ pgpool -v
pgpool-II version 3.7.1 (amefuriboshi)

Reading should go to all nodes.

Regards,
Virendra
From: Glauco Torres [mailto:torres(dot)glauco(at)gmail(dot)com]
Sent: Monday, January 29, 2018 11:53 AM
To: Kumar, Virendra
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: pgpool Connections Distributions Among Nodes

We have 4-node cluster (1 master and 3 hot standby). We are using pgpool as load balancer. We have an observation where if application requests for 3 connections, pgpool connects to all 4 servers and I see 3 connections on each of them. I was expecting it have a total of 3 connections from either of 4 servers but I can easily see 12 connections in all.

Can somebody shed some light on it.

Please let me know if you need more information.

Hello,
Which version pgpool you are using?
How did you balance the reading by pgpool? Should all readings go to the replicas? or reading goes to all nodes?
Regards,
Glauco Torres

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Attachment Content-Type Size
pgpool.conf application/octet-stream 34.7 KB

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