On Thu, Sep 07, 2023 at 07:07:36AM +0000, Hayato Kuroda (Fujitsu) wrote: > # Problem > > The "pg_ctl start" command returns 0 (succeeded) even if the cluster has > already been started. This occurs on Windows environment, and when the command > is executed just after postmaster starts.
Not failing on `pg_ctl start` if the command is run on a data folder that has already been started previously by a different command with a postmaster still alive feels like cheating, because pg_ctl is lying about its result. If pg_ctl wants to start a cluster but is not able to do it, either because the postmaster failed at startup or because the cluster has already started, it should report a failure. Now, I also recall that the processes spawned by pg_ctl on Windows make the status handling rather tricky to reason about.. -- Michael
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