Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/2129#discussion_r16757019
--- Diff:
core/src/main/scala/org/apache/spark/deploy/SparkSubmitDriverBootstrapper.scala
---
@@ -133,17 +133,24 @@ private[spark] object SparkSubmitDriverBootstrapper {
val process = builder.start()
// Redirect stdin, stdout, and stderr to/from the child JVM
- val stdinThread = new RedirectThread(System.in,
process.getOutputStream, "redirect stdin")
val stdoutThread = new RedirectThread(process.getInputStream,
System.out, "redirect stdout")
val stderrThread = new RedirectThread(process.getErrorStream,
System.err, "redirect stderr")
- stdinThread.start()
stdoutThread.start()
stderrThread.start()
- // Terminate on broken pipe, which signals that the parent process has
exited. This is
- // important for the PySpark shell, where Spark submit itself is a
python subprocess.
- stdinThread.join()
- process.destroy()
+ // In Windows, the subprocess reads directly from our stdin, so we
should avoid spawning
--- End diff --
Is there any public location where this behavior is specified?
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