[HIVE-27640] Counter for query concurrency

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Not Applicable
• Assignee: László Bodor
• Reporter: László Bodor
• Created: 23/Aug/23 09:37
• Updated: 21/Jun/24 09:57
• Resolved: 21/Jun/24 09:57

Description

This is kind of hard to catch easily, but I would like to see something/anything about query concurrency in the query counters. This way we can instantly see in the query summary what happened. I mean counters like:

1. how many queries were running when this query arrived

2. same as 1) but in query stage level
2a) how many queries were being compiled (or waiting for compilation) when this query started to compile (or started to enqueued for compilation)

2b) how many queries were waiting for a coordinator when this query started to get a coordinator

2c) how many queries were in the Run DAG phase, when this query started to run DAG