Merge pull request #671 from jerryshao/master

conf/metrics.properties.template

core/pom.xml

core/src/main/scala/spark/SparkContext.scala

core/src/main/scala/spark/SparkEnv.scala

core/src/main/scala/spark/deploy/master/Master.scala

core/src/main/scala/spark/deploy/master/MasterSource.scala

core/src/main/scala/spark/deploy/worker/Worker.scala

core/src/main/scala/spark/deploy/worker/WorkerSource.scala

core/src/main/scala/spark/executor/Executor.scala

core/src/main/scala/spark/executor/ExecutorSource.scala

core/src/main/scala/spark/metrics/MetricsConfig.scala

core/src/main/scala/spark/metrics/MetricsSystem.scala

core/src/main/scala/spark/metrics/sink/ConsoleSink.scala

core/src/main/scala/spark/metrics/sink/CsvSink.scala

core/src/main/scala/spark/metrics/sink/JmxSink.scala

core/src/main/scala/spark/metrics/sink/Sink.scala

core/src/main/scala/spark/metrics/source/JvmSource.scala

core/src/main/scala/spark/metrics/source/Source.scala

core/src/main/scala/spark/scheduler/DAGSchedulerSource.scala

core/src/main/scala/spark/storage/BlockManagerSource.scala