[HDFS-11426] Refactor EC CLI to be similar to storage policies CLI

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 3.0.0-alpha4
• Component/s: erasure-coding, shell
• Labels: hdfs-ec-3.0-must-do
• Target Version/s: 3.0.0-alpha4
• Hadoop Flags: Incompatible change
• Release Note: The `hdfs ec` CLI command has been substantially reworked to make the calling patterns more similar to the `hdfs storagepolicies` command. See `hdfs ec -help` and the HDFS erasure coding documentation for more information.
• Assignee: Andrew Wang
• Reporter: Andrew Wang
• Created: 17/Feb/17 21:23
• Updated: 02/Oct/19 17:14
• Resolved: 24/Feb/17 00:00

Description

The hdfs erasurecode CLI is similar to hdfs storagepolicies in terms of functionality, but different in terms of behavior. Let's refactor ECCli to be more similar to the various Admin classes we already have, and also make its calling syntax mimic hdfs storagepolicies as closely as possible.

Issue Links

• is related to: HDFS-11478 Update EC commands in HDFSCommands.md