Thanks for your support We have physical replication connection with Postgres node standby and have another replication slot with logical replication with another node and every day after run pg_basebackup we face huge number of file created and size per every hour is 23GB and in normal size is 0.8 GB and in logical replication we see in logs it’s in same checkpoint but baseline change and we run pg_basebackup with -X fetch -C fast.
On Sun, 2025-12-14 at 17:30 +0200, kasem adel wrote: > Appreciate your usual support that we facing an issue when take pg_basebackup for 4 TB > database in standby server and when backup finished we face huge number of wal file > with huge size generated for 6 hours the cause replication interruption.
If you want help with that, you will have to give us enough information to explain what happened.
- What exactly is a "replication interruption", and how do you diagnose it?
- Are you using streaming replication or logical replication?
- If it is streaming replication, are you using a replication slot?
- It is expected that if you suspend replication and have a replication slot, WAL will pile up on the primary. But what is the connection with pg_basebackup?
