Re: Streaming replication, retrying from archive

On Thu, Jan 14, 2010 at 9:15 AM, Heikki Linnakangas
<heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
> Imagine this scenario:
>
> 1. Master is up and running, standby is connected and streaming happily
> 2. Network goes down, connection is broken.
> 3. Standby falls behind a lot. Old WAL files that the standby needs are
> archived, and deleted from master.
> 4. Network is restored. Standby reconnects
> 5. Standby will get an error because the WAL file it needs is not in the
> master anymore.
>
> What will currently happen is:
>
> 6, Standby retries connecting and failing indefinitely, until the admin
> restarts it.
>
> What we would *like* to happen is:
>
> 6. Standby fetches the missing WAL files from archive, then reconnects
> and continues streaming.
>
> Can we fix that?

Just MHO here, but this seems like a bigger project than we should be
starting at this stage of the game.

...Robert