Re: pgbasebackup necessary for master slave change?

I am on 9.4. Doesn't look like we have it available on 9.4.

Do we have any other option?

On Thu, Dec 8, 2016 at 3:15 PM, Chris Travers <chris(dot)travers(at)gmail(dot)com> wrote:
>
>
> On Thu, Dec 8, 2016 at 10:33 AM, Subhankar Chattopadhyay
> <subho(dot)atg(at)gmail(dot)com> wrote:
>>
>> Hi,
>>
>> Few days back I had asked if it is needed to to pg_basebackup for
>> every database update. From John I understood that it is unnecessary
>> and if the slave is syncing, even if it is catching up, it would be
>> able to sync without doing pg_basebackup. This is working also for me.
>>
>> However, for a failover scenario, where a master goes down, and I make
>> the slave as master, and then when the old master comes back as a
>> slave again, if I don't take pg_basebackup from the new master, it
>> cannot follow the new master. This is kind of an overhead. Is there a
>> way I can make the old master follow the new master without having to
>> do full backup?
>
>
> Depending on your version and circumstance, pg_rewind may address your
> problem.
> https://www.postgresql.org/docs/9.5/static/app-pgrewind.html
>>
>>
>>
>>
>> Subhankar Chattopadhyay
>> Bangalore, India
>>
>>
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>
>
>
>
> --
> Best Wishes,
> Chris Travers
>
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--

Subhankar Chattopadhyay
Bangalore, India