ooyala/spark-jobserver — pull request #97 by myxjtu (2014-12-09 17:41:02+00:00)
Title: add more job serve metrics

1. added a metric to monitor the number of spark executors. It will help a lot for Exploration team to check the health status of job server
2. Added a meter to measure the job submission rate. It can help detect if job server is hang (when no new job submission is accepted)