HyukjinKwon 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_r339879865
########## 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: > When I debug it and find the python process is dead. Do you know why it was dead? We might better have to make daemon more robust rather than just retrying. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org