tree 573b26acb755e80bbb57d71581ff49ed2fe95e13
parent a1557df8d29ce7bed80cbc72aed7cbf6aca657f9
author Huizhi L <ihuizhi.lu@gmail.com> 1579073288 -0800
committer Jiajun Wang <1803880+jiajunwang@users.noreply.github.com> 1581107062 -0800

Add instance capacity gauge (#557)

We need to monitor instance utilization in purpose of understanding what the instance capacity is.

Change list:
- Change instance monitor to update capacity
- Change getAttribute to throw AttributeNotFoundException in DynamicMBeanProvider
- Combine max usage and instance capacity update into one method in cluster status monitor
- Add unit test