Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/1680#discussion_r15625850
--- Diff: python/pyspark/daemon.py ---
@@ -143,15 +92,10 @@ def manager():
# Create a listening socket on the AF_INET loopback interface
listen_sock = socket.socket(AF_INET, SOCK_STREAM)
listen_sock.bind(('127.0.0.1', 0))
- listen_sock.listen(max(1024, 2 * POOLSIZE, SOMAXCONN))
--- End diff --
The `2 * POOLSIZE` didn't really make sense here; it would only have an
effect if `multiprocessing.cpu_count()` reported more than 512 cores.
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