mesos/spark — pull request #783 by anfeng (2013-08-06 05:19:26+00:00)
Title: expose HDFS stats as executor metrics 

This PR exposes HDFS stats via Executor metrics.

Currently, we support 2 HDFS schemes:
* hdfs ... Hadoop distributed file system
* file ... Hadoop local file system

For each scheme, we have the following gauges:
* Number of bytes written
* Number of read operations
* Number of large read operations
* Number of write operations