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https://issues.apache.org/jira/browse/HIVE-16484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16308312#comment-16308312
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Sahil Takiar commented on HIVE-16484:
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[~vanzin] it looks like SPARK-11035 has been complete. Will the
{{InProcessLauncher}} work for HoS, at least in {{yarn-client}} mode?
It looks like in-process launcher is targeted for Spark 2.3.0, so we might have
to wait to get this into Hive, or we can use spark-2.3.0-rc0 which looks like
it will be released soon -
http://apache-spark-developers-list.1001551.n3.nabble.com/Branch-2-3-is-cut-td23072.html
> 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
>
>
> 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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