Dear Jeff, Thanks for reporting the issue. I've tried to reproduce the issue (by adding delay on worker-side and immediate shut-down), but not done yet. If possible, could you please share a script to reproduce? It is helpful to analyze.
> I'm going to try to reproduce this on 17.0, but in the meantime any other > suggestions for investigating this?x It is very helpful to check the content of pg_stat_replication_slots view and pg_wal directory of the postgres, when you succeed to reproduce. Also, please set log_min_messages = DEBUG2 to check logs from RemoveOldXlogFiles() and RemoveXlogFile(). I want to see the log when you can reproduce. They are inspired by [1]. I doubt the thread and yours are the same issue or not. [1]: https://www.postgresql.org/message-id/flat/Yz2hivgyjS1RfMKs%40depesz.com Best regards, Hayato Kuroda FUJITSU LIMITED
