From: | Ron <ronljohnsonjr(at)gmail(dot)com> |
---|---|
To: | pgsql-general(at)lists(dot)postgresql(dot)org |
Subject: | Re: How to choose new master from slaves.? |
Date: | 2022-08-04 10:22:52 |
Message-ID: | 4f65670a-443a-7e35-3b44-88a874b402b0@gmail.com |
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Thread: | |
Lists: | pgsql-general |
On 8/4/22 02:43, Sacheen Birhade wrote:
>
> Hi All,
>
> I have a very basic question about streaming replication feature of Postgres.
>
> Let’s assume I have servers A, B, C, D, & E with postgres installed with
> streaming replication as follow:
>
> A à B ( sync replication )
>
> A à C ( async replication )
>
> A à D ( async replication )
>
> A à E ( async replication )
>
> A is master & rest are slaves.
>
> Now my question is:
>
> Assume replication link between A & B may/may not stable. If A goes down,
> how will I choose my new master from slaves? What are criteria to choose
> new master?
>
By "link between A & B may/may not stable", do you mean that B might not
actually be synchronized?
--
Angular momentum makes the world go 'round.
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