tree c4976aea2905693de2fe97cf672a0077a112bb9e
parent 5d58e8d2d4cfb2f7b42fb43f9f9637d50f628867
author Jian Li <pyguni@gmail.com> 1459961420 -0700
committer Gerrit Code Review <gerrit@onlab.us> 1460394499 +0000

Notify all metric reporters when metric registry has been changed

With existing implementation, it is difficult to notify the
metric reports on metric registry changes. With this commit,
we can spontaneously notify all reporters about the metric
registry changes, so that newly added metrics can be automatically
reported to third party monitoring system.

Change-Id: I1273194553900f6bb03e2ef6bb1b54838af1da00