Startup process in slave - Mailing list pgsql-admin

From Raj kumar
Subject Startup process in slave
Date
Msg-id CACxU--V0igGcTxXV4H98Xw_ORVpjg0zdEPxfgeDwcTpPXR1iWA@mail.gmail.com
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Responses Re: Startup process in slave  (Scott Ribe <scott_ribe@elevated-dev.com>)
List pgsql-admin
Hi,

I could see that there is zero replication lag between master and slave.
But, slave has startup process always recovering  along with wal receiver streaming.

I thought after startup process stops recovering, then only  wal receiver will start receiving files from wal sender. Then startup process will be stopped.

In pg 9.6, I have always seen, only walreceiver running. But currently,  in Pg11, I see startup process in addition. May be it's not version specific.  I'm just adding more information. 

Can you please clarify why startup process is running even after walreceiver came up?

Thanks 
Raj
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