[jira] [Created] (SPARK-42272) Use available ephemeral port for Spark Connect server in testing

["Hyukjin Kwon (Jira)" <ji...@apache.org>]

Hyukjin Kwon created SPARK-42272:
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             Summary: Use available ephemeral port for Spark Connect server in testing
                 Key: SPARK-42272
                 URL: https://issues.apache.org/jira/browse/SPARK-42272
             Project: Spark
          Issue Type: Sub-task
          Components: Connect, Tests
    Affects Versions: 3.4.0
            Reporter: Hyukjin Kwon


Currently Spark Connect tests cannot run in parallel, and requires to set the parallelism as 1

{code}
python/run-tests --module pyspark-connect --parallelism 1
{code}

The main reason is because of the port being used is hardcorded as the default 15002. We should better search available port, and use it



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