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(parent: b9c65ae) | patch

Improve postmaster's behavior if an accept() call fails. Because the server

Improve postmaster's behavior if an accept() call fails. Because the server
socket is still read-ready, the code was a tight loop, wasting lots of CPU.
We can't do anything to clear the failure, other than wait, but we should give
other processes more chance to finish and release FDs; so insert a small sleep.
Also, avoid bogus "close(-1)" in this case. Per report from Jim Nasby.

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