From 3c104c79d24425786cec0034f269ba19cf465b31 Mon Sep 17 00:00:00 2001 From: Matthew Farrellee Date: Sat, 28 Jun 2014 18:39:27 -0700 Subject: [SPARK-1394] Remove SIGCHLD handler in worker subprocess It should not be the responsibility of the worker subprocess, which does not intentionally fork, to try and cleanup child processes. Doing so is complex and interferes with operations such as platform.system(). If it is desirable to have tighter control over subprocesses, then namespaces should be used and it should be the manager's resposibility to handle cleanup. Author: Matthew Farrellee Closes #1247 from mattf/SPARK-1394 and squashes the following commits: c36f308 [Matthew Farrellee] [SPARK-1394] Remove SIGCHLD handler in worker subprocess --- python/pyspark/daemon.py | 1 + 1 file changed, 1 insertion(+) diff --git a/python/pyspark/daemon.py b/python/pyspark/daemon.py index b2f226a55e..5eb1c63bf2 100644 --- a/python/pyspark/daemon.py +++ b/python/pyspark/daemon.py @@ -103,6 +103,7 @@ def worker(listen_sock): if os.fork() == 0: # Leave the worker pool signal.signal(SIGHUP, SIG_DFL) + signal.signal(SIGCHLD, SIG_DFL) listen_sock.close() # Read the socket using fdopen instead of socket.makefile() because the latter # seems to be very slow; note that we need to dup() the file descriptor because -- cgit v1.2.3