Subject: Re: PgBouncer - HA Mode
To: Anjul Tyagi <anjul@ibosstech-us.com>,
 pgsql-admin <pgsql-admin@postgresql.org>
References: <eme7c3a68e-c860-4a17-97aa-6124e2ba529e@iboss01108>
From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Organization: 2ndQuadrant
Message-ID: <917c4186-611e-e4c5-c715-b5300f97f98c@2ndquadrant.com>
Date: Mon, 17 Feb 2020 13:04:59 +0100
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0)
 Gecko/20100101 Thunderbird/52.9.1
MIME-Version: 1.0
In-Reply-To: <eme7c3a68e-c860-4a17-97aa-6124e2ba529e@iboss01108>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 2020-02-17 11:42, Anjul Tyagi wrote:
> we are using PgBouncer for connection pooling, now all are application 
> is connecting database via PgBouncer. However I need suggestion, if some 
> how VM goes down or something goes wrong with PgBouncer, how can we 
> handle that situation. We observe that currently its a single point of 
> failure for all application if PgBouncer goes down.
> 
> Is there any kind of load balancer or replicate the PgBouncer ti manage 
> the high availability?

A typical approach is to run several pgbouncer instances on separate 
hosts and use a TCP/IP-level load balancer (e.g., hardware load balancer 
or HAProxy) to route traffic.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services