beliefer commented on a change in pull request #26282: [SPARK-29619] Add
meaningful log and retry for start python worker process
URL: https://github.com/apache/spark/pull/26282#discussion_r339884891
##########
File path:
core/src/main/scala/org/apache/spark/api/python/PythonWorkerFactory.scala
##########
@@ -206,15 +206,28 @@ private[spark] class PythonWorkerFactory(pythonExec:
String, envVars: Map[String
workerEnv.put("PYTHON_WORKER_FACTORY_SECRET", authHelper.secret)
// This is equivalent to setting the -u flag; we use it because
ipython doesn't support -u:
workerEnv.put("PYTHONUNBUFFERED", "YES")
- daemon = pb.start()
-
- val in = new DataInputStream(daemon.getInputStream)
- try {
- daemonPort = in.readInt()
- } catch {
- case _: EOFException =>
- throw new SparkException(s"No port number in $daemonModule's
stdout")
Review comment:
I'm Sorry! I only know the daemon sometimes dead and exit with code 139.
We use Yarn mode, so the hierarchical relationship looks like:
Yarn container process----JVM process----- python process
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