[HBASE-17153] Add FavoredNode checks to hbck -checkFavoredNodes

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Incomplete
• Component/s: FavoredNodes
• Assignee: Unassigned
• Reporter: Thiruvel Thirumoolan
• Created: 21/Nov/16 23:55
• Updated: 23/Jun/22 19:13
• Resolved: 23/Jun/22 19:13

Description

Sample checks and error conditions include:

1. Is favored nodes is present for all regions?
2. Are there any duplicates in favored nodes?
3. Do we have the right number of favored nodes, 3 at the moment?
4. Are all of them online or do we have dead favored nodes?