[IMPALA-6151] Add NumBackends and NumFragments counters to profile

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: Impala 2.11.0
• Component/s: Backend
• Labels: observability supportability
• Epic Color: ghx-label-6
• Assignee: Tim Armstrong
• Reporter: Tim Armstrong
• Created: 03/Nov/17 18:28
• Updated: 07/Nov/17 22:25
• Resolved: 07/Nov/17 22:25

Description

It would be nice to have a NumBackends counter in the profile. The information is available in the "backend startup latency" string and by counting the number of fragment children but that is hard to programmatically extract.