Re: block-level incremental backup

On Wed, Jul 17, 2019 at 7:38 PM Ibrar Ahmed <ibrar(dot)ahmad(at)gmail(dot)com> wrote:

>
>
> On Wed, Jul 17, 2019 at 6:43 PM Jeevan Chalke <
> jeevan(dot)chalke(at)enterprisedb(dot)com> wrote:
>
>> On Wed, Jul 17, 2019 at 2:15 PM Ibrar Ahmed <ibrar(dot)ahmad(at)gmail(dot)com>
>> wrote:
>>
>>>
>>> At what stage you will apply the WAL generated in between the START/STOP
>>> backup.
>>>
>>
>> In this design, we are not touching any WAL related code. The WAL files
>> will
>> get copied with each backup either full or incremental. And thus, the last
>> incremental backup will have the final WAL files which will be copied
>> as-is
>> in the combined full-backup and they will get apply automatically if that
>> the data directory is used to start the server.
>>
>
> Ok, so you keep all the WAL files since the first backup, right?
>

The WAL files will anyway be copied while taking a backup (full or
incremental),
but only last incremental backup's WAL files are copied to the combined
synthetic full backup.

>>
>>> --
>>> Ibrar Ahmed
>>>
>>
>> --
>> Jeevan Chalke
>> Technical Architect, Product Development
>> EnterpriseDB Corporation
>>
>>
>
> --
> Ibrar Ahmed
>

--
Jeevan Chalke
Technical Architect, Product Development
EnterpriseDB Corporation