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From "Stephen Haberman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-4704) SparkSubmitDriverBootstrap doesn't flush output
Date Wed, 24 Dec 2014 02:43:13 GMT

    [ https://issues.apache.org/jira/browse/SPARK-4704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14257859#comment-14257859
] 

Stephen Haberman commented on SPARK-4704:
-----------------------------------------

That that PR 3655 is for a separate issue (it referenced this ticket as a typo).

> 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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