[jira] [Created] (YARN-6567) Flexible Workload Management

["Ajai Omtri (JIRA)" <ji...@apache.org>]

Ajai Omtri created YARN-6567:
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             Summary: Flexible Workload Management
                 Key: YARN-6567
                 URL: https://issues.apache.org/jira/browse/YARN-6567
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: scheduler
            Reporter: Ajai Omtri
            Priority: Minor


Yarn workload management can be little more dynamic. 

1. Create yarn pool by specifying more than one Secondary AD group. 

Scenario: 
In a multi-tenant cluster there can be hundreds of AD groups per tenant and hundreds of users per AD group. We want a way to group like workloads into single yarn pool by specifying multiple secondary AD Groups. 

Ex: All the ETL workloads of tenants needs to go into one yarn pool. This requires addition of all ETL related AD groups into one yarn pool. 

2. Demotions

Scenario: A particular workload/job has been started in a high priority yarn pool based on the assumption that it would finish quickly but due to some data issue/change in the code/query etc. - now it is running longer and consuming high amounts of resources for long time. In this case we want to demote this to a lower resource allocated yarn pool. We don’t want this one run-away workload/job to dominate the cluster because our assumption was wrong.

Ex: If any workload in the yarn pool runs for X minutes and/or consumes Y resources either alert me or push to another yarn pool. User can keep demoting and can push to a yarn pool which has capped resources - like Penalty box.




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