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https://issues.apache.org/jira/browse/HIVE-16484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16312178#comment-16312178
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Sahil Takiar commented on HIVE-16484:
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Test failures are un-related. I updated the RB and added a few notes to explain
what the code is doing - https://reviews.apache.org/r/58684/ [~xuefuz],
[~lirui] can you review?
> Investigate SparkLauncher for HoS as alternative to bin/spark-submit
> --------------------------------------------------------------------
>
> Key: HIVE-16484
> URL: https://issues.apache.org/jira/browse/HIVE-16484
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Reporter: Sahil Takiar
> Assignee: Sahil Takiar
> Attachments: HIVE-16484.1.patch, HIVE-16484.2.patch,
> HIVE-16484.3.patch, HIVE-16484.4.patch, HIVE-16484.5.patch,
> HIVE-16484.6.patch, HIVE-16484.7.patch, HIVE-16484.8.patch, HIVE-16484.9.patch
>
>
> The {{SparkClientImpl#startDriver}} currently looks for the {{SPARK_HOME}}
> directory and invokes the {{bin/spark-submit}} script, which spawns a
> separate process to run the Spark application.
> {{SparkLauncher}} was added in SPARK-4924 and is a programatic way to launch
> Spark applications.
> I see a few advantages:
> * No need to spawn a separate process to launch a HoS --> lower startup time
> * Simplifies the code in {{SparkClientImpl}} --> easier to debug
> * {{SparkLauncher#startApplication}} returns a {{SparkAppHandle}} which
> contains some useful utilities for querying the state of the Spark job
> ** It also allows the launcher to specify a list of job listeners
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