[HBASE-24038] Add a metric to show the locality of ssd in table.jsp

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.4.0
• Component/s: metrics
• Hadoop Flags: Reviewed
• Release Note: Add a metric to show the locality of ssd in table.jsp, and move the locality related metrics to a new tab named localities.
• Assignee: Zheng Wang
• Reporter: Zheng Wang
• Created: 24/Mar/20 07:41
• Updated: 18/Jun/20 07:17
• Resolved: 15/Jun/20 14:00

Description

If a hdfs block has a replica on local hdd and a replica on remote ssd, then the local one is first priority, so i think it is useful to show the locality of ssd, especially when use the ONE_SSD storagy policy.
 

Issue Links

• links to: GitHub Pull Request #1337
• links to: GitHub Pull Request #1902