Re: Streaming Replication

ning chan wrote:
> I am new to PG Streaming Replication and I have a simple question hopefully someone can answer this
> easily.
>
> I setup a Primary Hot Standby and they are connecting each other without problem.
> Looking at the wal sender process, both servers pointing to the same location as follow:
>
> Primary:
> postgres 3018 0.0 0.1 203888 3024 ? Ss 19:25 0:00 postgres: wal sender process postgres
> 10.89.94.31(43169) streaming 0/D913018
>
> Standby:
> postgres 3645 0.0 0.1 212556 3096 ? Ss 19:25 0:00 postgres: wal receiver process
> streaming 0/D913018
>
> My question is when looking at the standby processes, I see startup process as follow:
> postgres 3320 0.0 0.0 203048 2084 ? Ss 18:11 0:00 postgres: startup process
> recovering 00000001000000000000000D
>
> What is that suppose to mean?
> Is it really recovering some data from WAL record in the pg_xlog folder?

That indicates the WAL segment that is currently being
recovered, but not that WAL is read from a file in pg_xlog.

Yours,
Laurenz Albe