[HDFS-12206] Rename the split EC / replicated block metrics

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha4
• Fix Version/s: 3.0.0-beta1
• Component/s: metrics
• Labels: hdfs-ec-3.0-must-do
• Target Version/s: 3.0.0-beta1
• Hadoop Flags: Incompatible change

Release Note

The metrics and MBeans introduced in HDFS-10999 have been renamed for brevity and clarity.

• Assignee: Andrew Wang
• Reporter: Andrew Wang
• Created: 27/Jul/17 17:36
• Updated: 28/Jul/17 18:48
• Resolved: 28/Jul/17 18:26

Description

Going through the split EC/replicated metrics, I think it'd be better to name the replicated-only metrics with "ReplicatedBlocks" rather than "BlocksStat" for clarity. "Stat" is also not a very descriptive name, so remove it for the EC blocks as well. Finally, fix some inconsistencies that were missed earlier.

Issue Links

• relates to: HDFS-10999 Introduce separate stats for Replicated and Erasure Coded Blocks apart from the current Aggregated stats
• relates to: HDFS-12218 Rename split EC / replicated block metrics in BlockManager