[HIVE-14358] Add metrics for number of queries executed for each execution engine (mr, spark, tez)

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.0
• Fix Version/s: 2.3.0
• Component/s: HiveServer2

Release Note

Add metrics showing the number of queries ran for each execution engine.
New values can be found on the metrics dump page of the webUI under the following properties :
- hive_mapred_tasks
- hive_spark_tasks
- hive_tez_tasks

• Assignee: Barna Zsombor Klara
• Reporter: Lenni Kuff
• Created: 27/Jul/16 13:49
• Updated: 21/Jul/17 17:55
• Resolved: 27/Sep/16 13:39

Description

HiveServer2 currently has a metric for the total number of queries ran since last restart, but it would be useful to also have metrics for number of queries ran for each execution engine. This would improve supportability by allowing users to get a high-level understanding of what workloads had been running on the server.