定期删除 postgres 12 中存档的 Wal 文件

Question

I am working on postgres 12 with windows 10. It is a standalone system. I am using archiveWal for creating a postgres backup & point in time recovery. My archived Wal files are getting huge after few days. I want to delete archived Wal files periodically(For eg every hour). I tried using pg_archivecleanup with command:-

pg_archivecleanup.exe C:\PostgreSQL\archiveWal 00000001000000000000003B

For pg_archivecleanup we have to provide the archived Wal file name in postges.conf so that it can delete files created before this file & postgres restart is required after the update.

Is there any other way or command to do periodically deletion of archived Wal files?

Answer 1

Deleting WAL archives every few hours defies the purpose. You need to keep them as long as the oldest base backup you want to restore.

I would get more storage and create a job that deletes WAL archive files older than your backup retention time.