[IMPALA-63] Add new Impala metric that exposes the total number of tables and databases Impala "knows about"

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 0.6
• Fix Version/s: Impala 1.0.1
• Assignee: Henry Robinson
• Reporter: Lenni Kuff
• Created: 13/Feb/13 16:00
• Updated: 15/May/13 18:15
• Resolved: 03/May/13 22:16

Description

Add new Impala metric that exposes the total number of tables and databases loaded. This will help external tools detect when Impala was unable to load any tables from the metastore. Another option would be to expose a JSON view of the /catalogs page.