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https://issues.apache.org/jira/browse/HIVE-19814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16559789#comment-16559789
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Sahil Takiar commented on HIVE-19814:
-------------------------------------
Overall patch looks good. I think we should add another test for the original
issue. The RSC client should look for a random open port and write it to the
{{SPARK_RPC_SERVER_PORT}} config and then ensure that the {{RemoteDriver}}
connects back to the client using that port.
You can look at {{TestSparkStatistics}} as an example of a unit test that runs
with {{spark.master}} {{local-cluster[...]}}
> RPC Server port is always random for spark
> ------------------------------------------
>
> Key: HIVE-19814
> URL: https://issues.apache.org/jira/browse/HIVE-19814
> Project: Hive
> Issue Type: Bug
> Components: Spark
> Affects Versions: 2.3.0, 3.0.0, 2.4.0, 4.0.0
> Reporter: bounkong khamphousone
> Assignee: Bharathkrishna Guruvayoor Murali
> Priority: Major
> Attachments: HIVE-19814.1.patch
>
>
> RPC server port is always a random one. In fact, the problem is in
> RpcConfiguration.HIVE_SPARK_RSC_CONFIGS which doesn't include
> SPARK_RPC_SERVER_PORT.
>
> I've found this issue while trying to make hive-on-spark running inside
> docker.
>
> HIVE_SPARK_RSC_CONFIGS is called by HiveSparkClientFactory.initiateSparkConf
> > SparkSessionManagerImpl.setup and the latter call
> SparkClientFactory.initialize(conf) which initialize the rpc server. This
> RPCServer is then used to create the sparkClient which use the rpc server
> port as --remote-port arg. Since initiateSparkConf ignore
> SPARK_RPC_SERVER_PORT, then it will always be a random port.
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