Re: Replication is stuck

I am running pg14.4. I use WAL replication in a stand-by server which is 7-days behind primary (recovery_min_apply_delay = 7d)

 

My replication is stuck. It looks like it is repeatedly applying same WAL file. The next WAL file(s) are very much there.

 

I restarted cluster but it didn’t fix the issue.

 

I appreciate any help you can provide before I rebuild the stand-by. I am trying to find the root cause. If 0000000100013D94000000FF is corrupted how can we tell?

 

2024-06-23 06:54:57 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

2024-06-23 06:55:02 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

2024-06-23 06:55:07 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

2024-06-23 06:55:12 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

2024-06-23 06:55:17 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

2024-06-23 06:55:22 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

2024-06-23 06:55:27 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

2024-06-23 06:55:32 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

2024-06-23 06:55:37 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

2024-06-23 06:55:42 CDT []LOG:  restored log file "0000000100013D94000000FF" from archive

 

 

There are no missing WALs:

 

ls -ltr 0000000100013D95000000* |more

-rw------- 1 postgres postgres 16777216 Jun 14 19:39 0000000100013D9500000000

-rw------- 1 postgres postgres 16777216 Jun 14 19:39 0000000100013D9500000001

-rw------- 1 postgres postgres 16777216 Jun 14 19:39 0000000100013D9500000002

-rw------- 1 postgres postgres 16777216 Jun 14 19:39 0000000100013D9500000003

-rw------- 1 postgres postgres 16777216 Jun 14 19:40 0000000100013D9500000004

-rw------- 1 postgres postgres 16777216 Jun 14 19:40 0000000100013D9500000005

-rw------- 1 postgres postgres 16777216 Jun 14 19:40 0000000100013D9500000006

-rw------- 1 postgres postgres 16777216 Jun 14 19:40 0000000100013D9500000007

-rw------- 1 postgres postgres 16777216 Jun 14 19:40 0000000100013D9500000008

-rw------- 1 postgres postgres 16777216 Jun 14 19:40 0000000100013D9500000009

-rw------- 1 postgres postgres 16777216 Jun 14 19:41 0000000100013D950000000A

-rw------- 1 postgres postgres 16777216 Jun 14 19:41 0000000100013D950000000B