[jira] [Created] (FLINK-4125) Yarn CLI incorrectly calculates slotsPerTM when parallelism < task manager count

[Shang Yuanchun (Jira)]

Chris Hogue created FLINK-4125:
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             Summary: Yarn CLI incorrectly calculates slotsPerTM when parallelism < task manager count
                 Key: FLINK-4125
                 URL: https://issues.apache.org/jira/browse/FLINK-4125
             Project: Flink
          Issue Type: Bug
            Reporter: Chris Hogue
            Priority: Minor


The FlinkYarnSessionCli class tries to calculate how many slots each taskmanager gets based on the user-supplied parallelism option. It's using an int, so when -p < -yn it is truncated to 0 and the cluster then fails to start, saying slots per TM must be positive. And example command to trigger this would be:

bin/flink run -m yarn-cluster -d -yn 20 -ys 2 -p 5 <a jar>



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