[HDFS-17056] EC: Fix verifyClusterSetup output in case of an invalid param.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: erasure-coding
• Labels: newbie pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Zhaobo Huang
• Reporter: Ayush Saxena
• Created: 22/Jun/23 15:22
• Updated: 28/Jan/24 02:10
• Resolved: 25/Dec/23 17:47

Description

bin/hdfs ec  -verifyClusterSetup XOR-2-1-1024k        
9 DataNodes are required for the erasure coding policies: RS-6-3-1024k, XOR-2-1-1024k. The number of DataNodes is only 3. 

verifyClusterSetup requires -policy then the name of policies, else it defaults to all enabled policies.

In case there are additional invalid options it silently ignores them, unlike other EC commands which throws out Too Many Argument exception.

Issue Links

• links to: GitHub Pull Request #6379