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Posted to issues@spark.apache.org by "Ryan Blue (JIRA)" <ji...@apache.org> on 2016/09/13 21:54:20 UTC

[jira] [Created] (SPARK-17532) Add thread lock information from JMX to thread dump UI

Ryan Blue created SPARK-17532:
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             Summary: Add thread lock information from JMX to thread dump UI
                 Key: SPARK-17532
                 URL: https://issues.apache.org/jira/browse/SPARK-17532
             Project: Spark
          Issue Type: Improvement
          Components: Web UI
            Reporter: Ryan Blue


It would be much easier to track down issues like SPARK-15725 if the thread dump page in the web UI displayed debugging info about what locks are currently held by threads. This is already available through the [ThreadMXBean|https://docs.oracle.com/javase/7/docs/api/java/lang/management/ThreadMXBean.html] that is used to get stack traces, thead ids, and names.



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