Ming Ma created HDFS-8874:
-----------------------------
Summary: Add DN metrics for balancer and other block movement
scenarios
Key: HDFS-8874
URL: https://issues.apache.org/jira/browse/HDFS-8874
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Ming Ma
Assignee: Chris Trezzo
For balancer, mover and migrator (HDFS-8789), we want to know how close it is
to the DN's throttling thresholds. Although DN has existing metrics such as
{{BytesWritten}}, {{BytesRead}}, {{CopyBlockOpNumOps}} and
{{ReplaceBlockOpNumOps}}, there is no metrics to indicate the number of bytes
moved.
We can add {{ReplaceBlockBytesWritten}} and {{CopyBlockBytesRead}} to account
for the bytes moved in ReplaceBlock and CopyBlock operations. In addition, we
can also add throttling metrics for {{DataTransferThrottler}} and
{{BlockBalanceThrottler}}.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
