[HDDS-5368] Add CLI command: ozone admin namespace summary

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0
• Labels: pull-request-available
• Assignee: Yuan Gu
• Reporter: Siyao Meng
• Created: 22/Jun/21 18:11
• Updated: 28/Aug/21 05:13
• Resolved: 28/Aug/21 05:13

Description

Add the ozone admin shell command ozone admin namespace summary

From the design doc:

$ ozone admin namespace summary --all /vol1/bucket1/MyDir

Entity Type : Directory
Directories : 1
Keys : 10

DU
  Size  DiskUsage   Path
  21G     63G          /volume1/bucket1
  5G      15G          /volume1/bucket2

File Size Distribution
  1KB - 2KB - 50% (5)
  2KB - 4KB - 50% (5)

This new command is expected to connect to Recon to get the info, so some new APIs in Recon would be necessary (RPC or REST, most likely REST).

Issue Links

• links to: GitHub Pull Request #2565