many "cp: cannot stat xxx No such file or directory" logs in warm standby

[Hong Yao <yahoon1982@xxxxxxxxx>]

Hi all

I am setting up a standby server for my PG-12.4 primary server, following the doc https://www.postgresql.org/docs/12/warm-standby.html#STANDBY-SERVER-SETUP (26.2.4. Setting Up a Standby Server"

The OSes are CentOS-7.8

The steps on the standby:

• install postgresql-12 (not initdb)
• run pg_basebackup to fill the data folder
• clean pg_wal folder
• set restore command in postgresql.conf
•     restore_command = 'cp /var/pg_wal_archive/%f %p'     
•     archive_cleanup_command = 'pg_archivecleanup /var/pg_wal_archive %r'
• touch recovery.signal and  standby.signal
• start the postgresql-12 service

But in the standalone logs, i see following errors keep repeating:

cp: cannot stat ‘/var/pg_wal_archive/000000020000000000000014’: No such file or directory

cp: cannot stat ‘/var/pg_wal_archive/00000003.history’: No such file or directory

Below is the content of archive folder

-rw-------. 1 postgres postgres 16777216 Sep 28 00:36 000000010000000000000014
-rw-------. 1 postgres postgres 16777216 Sep 28 00:28 000000010000000000000013
-rw-------. 1 postgres postgres 16777216 Sep 28 00:27 000000020000000000000013
-rw-------. 1 postgres postgres       42 Sep 28 00:26 00000002.history
-rw-------. 1 postgres postgres      340 Sep 28 00:22 000000010000000000000012.00000028.backup
-rw-------. 1 postgres postgres 16777216 Sep 28 00:22 000000010000000000000012
-rw-------. 1 postgres postgres 16777216 Sep 28 00:22 000000010000000000000011
-rw-------. 1 postgres postgres 16777216 Sep 28 00:18 000000010000000000000010

Does it mean my setup is not correct? How should I fix it?

Thanks in advance!

BR,

Yahoon