Re: WAL history files - Pgsql 9.2

2016-12-12 12:00 GMT+13:00 Venkata B Nagothi <nag1010(at)gmail(dot)com>:

>
> On Mon, Dec 12, 2016 at 7:48 AM, Patrick B <patrickbakerbr(at)gmail(dot)com>
> wrote:
>
>> Hi guys,
>>
>> Are the history files copied with the wal_files? Or I have to do it
>> separated?
>>
>> 00000003.history': No such file or directory
>>
>>
>> I'm using PostgreSQL 9.2.
>>
>
> Can you please explain the scenario you are referring to ? during
> streaming replication ? or during standby promotion ?
>
>
>

Sure...

I've got:

> Master01 (sending wal_files to the slaves)
> slave01 (streaming replication from master01 + wal_files)
> slave02 (streaming replication from master01 + wal_files)

I'll turn slave01 into a master; on recovery.conf:

trigger_file = '/tmp/pg_failover_trigger';touch /tmp/pg_failover_trigger

Then, the new scenario will be:
> slave01 (*NEW MASTER*)
> slave02 (streaming replication from slave01 + wal_files)

Will slave02 be able to switch the timeline using wal_files provided by the
new master?
Thanks