[
https://issues.apache.org/jira/browse/HIVE-16484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15975693#comment-15975693
]
Xuefu Zhang commented on HIVE-16484:
------------------------------------
Hi [~stakiar], thanks for bringing it up. I think it would be very useful,
especially when replacing the option of starting a spark application in Hive
when SPARK_HOME isn't available, using org.apache.spark.deploy.SparkSubmit,
which is never intended for serious use.
Though, I'm not sure of production readiness of SparkLauncher. Maybe [~vanzin]
can shed some lights on this.
> 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
>
> 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
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
