[KUDU-2986] Incorrect value for the 'live_row_count' metric with pre-1.11.0 tables

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.11.0
• Fix Version/s: 1.12.0
• Component/s: CLI, client, master, metrics
• Assignee: LiFu He
• Reporter: YifanZhang
• Created: 29/Oct/19 03:17
• Updated: 17/Apr/20 19:50
• Resolved: 17/Apr/20 19:50

Description

When we upgraded the cluster with pre-1.11.0 tables, we got inconsistent values for the 'live_row_count' metric of these tables:

When visiting masterURL:port/metrics, we got 0 for old tables, and got a positive integer for a old table with a newly added partition, which is the count of rows in the newly added partition.

When getting table statistics via `kudu table statistics` CLI tool, we got 0 for old tables and the old table with a new parition.