Re: Wal file increase

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?

Yours,
Laurenz Albe