Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/3274#discussion_r20398164
--- Diff: python/pyspark/java_gateway.py ---
@@ -45,7 +45,9 @@ def launch_gateway():
# Don't send ctrl-c / SIGINT to the Java gateway:
def preexec_func():
signal.signal(signal.SIGINT, signal.SIG_IGN)
- proc = Popen(command, stdout=PIPE, stdin=PIPE,
preexec_fn=preexec_func)
+ env = dict(os.environ)
+ env["PYSPARK"] = "1" # tell JVM to exit after python exits
--- End diff --
Sorry, I missed this case. Actually not all pyspark applications should go
through this path. I think we should rename this variable to
`IS_PYTHON_SUBPROCESS` on second thought:
```
env["IS_PYTHON_SUBPROCESS"] = "1" # Tell JVM to exit after python exits
```
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