Srinivasa Reddy Vundela created SPARK-22483:
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             Summary: Exposing java.nio bufferedPool memory metrics to metrics 
system
                 Key: SPARK-22483
                 URL: https://issues.apache.org/jira/browse/SPARK-22483
             Project: Spark
          Issue Type: Sub-task
          Components: Spark Core
    Affects Versions: 2.2.0
            Reporter: Srinivasa Reddy Vundela


Spark currently exposes on-heap and off-heap memory of JVM to metric system. 
Currently there is no way to know how much direct/mapped memory allocated for 
java.nio buffered pools. 



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