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?