[jira] [Created] (SPARK-4704) SparkSubmitDriverBootstrap doesn't flush output

["Stephen Haberman (JIRA)" <ji...@apache.org>]

Stephen Haberman created SPARK-4704:
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             Summary: SparkSubmitDriverBootstrap doesn't flush output
                 Key: SPARK-4704
                 URL: https://issues.apache.org/jira/browse/SPARK-4704
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
         Environment: 1.2.0-rc1
            Reporter: Stephen Haberman


When running spark-submit with a job that immediately blows up (say due to init errors in the job code), there is no error output from spark-submit on the console.

When I ran spark-class directly, then I do see the error/stack trace on the console.

I believe the issue is in SparkSubmitDriverBootstrapper (I had spark.driver.memory set in spark-defaults.conf) not waiting for the  RedirectThreads to flush/complete before exiting.

E.g. here:

https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/deploy/SparkSubmitDriverBootstrapper.scala#L143

I believe around line 165 or so, stdoutThread.join() and
stderrThread.join() calls are necessary to make sure the other threads
have had a chance to flush process.getInputStream/getErrorStream to
System.out/err before the process exits.

I've been tripped up by this in similar RedirectThread/process code, hence suspecting this is the problem.




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