[GitHub] helix issue #199: Adding monitoring metrics document.

[jiajunwang]

Github user jiajunwang commented on the issue:

    https://github.com/apache/helix/pull/199
  
    Snapshorts
    
    
![index](https://user-images.githubusercontent.com/1803880/39263645-ab6e7bd4-4877-11e8-9e02-23aca0e42986.png)
    [Apache Helix - Helix Monitoring 
Metrics.pdf](https://github.com/apache/helix/files/1948241/Apache.Helix.-.Helix.Monitoring.Metrics.pdf)



---