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From "Sergey Shelukhin (JIRA)" <>
Subject [jira] [Commented] (HIVE-17508) Implement pool rules and triggers based on counters
Date Wed, 27 Sep 2017 01:11:00 GMT


Sergey Shelukhin commented on HIVE-17508:

Lots of comments. My main concern is that there should be one place that validates the rules,
it should not be diffuse everywhere in the code on different threads and structure with multiple
copies of the rules. It'd be easier to reason about, and also require much less potential

> Implement pool rules and triggers based on counters
> ---------------------------------------------------
>                 Key: HIVE-17508
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>    Affects Versions: 3.0.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>         Attachments: HIVE-17508.1.patch, HIVE-17508.2.patch, HIVE-17508.3.patch, HIVE-17508.3.patch,
HIVE-17508.WIP.2.patch, HIVE-17508.WIP.patch
> Workload management can defined Rules that are bound to a resource plan. Each rule can
have a trigger expression and an action associated with it. Trigger expressions are evaluated
at runtime after configurable check interval, based on which actions like killing a query,
moving a query to different pool etc. will get invoked. Simple rule could be something like
> {code}
> CREATE RULE slow_query IN resource_plan_name
> WHEN execution_time_ms > 10000
> MOVE TO slow_queue
> {code}

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