[KUDU-2307] ksck should differentiate between different kinds of "unavailable"

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.6.0
• Component/s: ksck, ops-tooling
• Assignee: William Berkeley
• Reporter: Mike Percy
• Created: 16/Feb/18 22:24
• Updated: 03/Apr/18 06:52

Description

ksck should differentiate between different kinds of UNAVAILABLE tablets:

• OFFLINE (no replicas available)
• READ-ONLY (only a minority of running replicas) – is this a good name for this condition?
• NO LEADER (majority of running replicas but no leader) – possibly transient condition during leader election

Marking tables with tablets undergoing a leader election as UNAVAILABLE is misleading and not very helpful