Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/640#discussion_r12351428
--- Diff: python/pyspark/daemon.py ---
@@ -74,6 +74,15 @@ def handle_sigchld(*args):
raise
signal.signal(SIGCHLD, handle_sigchld)
+ # Blocks until the socket is closed by draining the input stream
+ # until it raises an exception.
+ def waitSocketClose(sock):
+ try:
+ while True:
--- End diff --
As per our offline discussion this needs to handle the case where the
socket shuts down gracefully.
```
if sock.recv(4096) == "":
return
```
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