Kousuke Saruta created SPARK-2673:
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Summary: Improve Spark so that we can attach Debugger to Executors
easily
Key: SPARK-2673
URL: https://issues.apache.org/jira/browse/SPARK-2673
Project: Spark
Issue Type: Improvement
Reporter: Kousuke Saruta
In current implementation, we are difficult to attach debugger to each Executor
in the cluster.
There are reasons as follows.
1) It's difficult for Executors running on the same machine to open debug port
because we can only pass same JVM options to all executors.
2) Even if we can open unique debug port to each Executors running on the same
machine, it's a bother to check debug port of each executor.
To solve those problem, I think following 2 improvement is needed.
1) Enable executor to open unique debug port on a machine.
2) Expand WebUI to be able to show debug ports opening in each executor.
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