[IMPALA-6758] Add metric for current catalog version to catalog

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Impala 2.12.0
• Component/s: Catalog
• Labels: newbie observability
• Epic Color: ghx-label-7
• Assignee: Vincent Tran
• Reporter: Lars Volker
• Created: 28/Mar/18 21:05
• Updated: 23/Oct/18 21:26

Description

IMPALA-6075 added metrics to expose the current catalog version of a backend. However, the catalog itself does not seem to expose the same metric. The statestore only exposes the topic version in which the catalog updates are transported (catalog.curr-topic).