Laurenz Albe <laurenz.albe@xxxxxxxxxxx> writes: > On Wed, 2021-03-24 at 09:01 +0100, Albrecht Dreß wrote: >> in the logs of my database server, I found the following message: >>> ERROR: could not attach to dynamic shared area >>> LOG: background worker "parallel worker" (PID 51151) exited with exit code 1 > ... it could be a race condition: a parallel query finished rather fast, > but one of the parallel workers took long to start up, so when it tries to > attach to the dynamic shared memory segment used to exchange data between the > parallel processes, it realizes that everybody else has already left and > destroyed the memory segment. If the error only appeared in the log, and wasn't reported to the client, then this theory seems pretty plausible. regards, tom lane
