From: pgsql-hackers-ow...@postgresql.org > [mailto:pgsql-hackers-ow...@postgresql.org] On Behalf Of Ashutosh Bapat > I am not sure if following condition is a good idea in ServerLoop() > 1650 if (pmState == PM_WAIT_DEAD_END || ClosedSockets) > > There are no sockets to listen on, so select in the else condition is going > to sleep for timeout determined based on the sequence expected. > Just before we close sockets in pmdie() it sets AbortStartTime, which > determines the timeout for the sleep here. So, it doesn't make sense to > ignore it. Instead may be we should change the default 60s sleep to 100ms > sleep in DetermineSleepTime().
That sounds better. I modified cleaned ServerLoop() by pushing the existing 100ms logic into DetermineSleepTime(). > While the postmaster is terminating children, a new connection request may > arrive. We should probably close listening sockets before terminating > children in pmdie(). I moved ClosePostmasterSocket() call before terminating children in the immediate shutdown case. I didn't change the behavior of smart and fast shutdown modes, because they may take a long time to complete due to checkpointing etc. Users will want to know what's happening during shutdown or after pg_ctl stop times out, by getting the message "FATAL: the database system is shutting down" when they try to connect to the database. The immediate shutdown or crash should better be as fast as possible. > Otherwise this patch looks good to me. It applies and compiles cleanly. > make check-world doesn't show any failures. Thank you for reviewing and testing. The revised patch is attached. Regards Takayuki Tsunakawa
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