[KAFKA-8366] partitions of topics being deleted show up in the offline partitions metric

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.1.0, 3.0.0, 3.0.1, 3.2.0, 3.1.1, 3.3.0, 3.0.2, 3.2.1
• Component/s: controller, core, metrics
• Labels: BUG controller metrics reproducible-bug
• Assignee: Unassigned
• Reporter: Radai Rosenblatt
• Created: 15/May/19 01:15
• Updated: 16/May/22 12:55

Description

i believe this is a bug
offline partitions is a metric that indicates an error condition - lack of kafka availability.
as an artifact of how deletion is implemented the partitions for a topic undergoing deletion will show up as offline, which just creates false-positive alerts.

if needed, maybe there should exist a separate "partitions to be deleted" sensor.