Re: Race condition in recovery?

At Mon, 17 May 2021 12:20:12 +0900 (JST), Kyotaro Horiguchi <horikyota.ntt@gmail.com> wrote in 
> Assuming that we keep expectedTLEs synced with recoveryTargetTLI,
> rescanLatestTimeLine updates the list properly so no need to worry
> about the future.  So the issue would be in the past timelines.  After
> reading the checkpoint record, if we need to rewind to the previous
> timeline for the REDO point, the dummy list is inconvenient.

By the way, I tried reproducing this situation, but ended in finding
it a kind of impossible because pg_basebackup (or pg_stop_backup())
waits for the promotion checkpoint to end.

If we make a backup in a somewhat broken steps, that could be done but
I didn't try.

regards.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center