Abhishek Rawat created IMPALA-12622:
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             Summary: Add admission controller clamp settings for dedicated 
coordinator memory estimates
                 Key: IMPALA-12622
                 URL: https://issues.apache.org/jira/browse/IMPALA-12622
             Project: IMPALA
          Issue Type: Task
          Components: Backend
            Reporter: Abhishek Rawat


It could be useful to support admission controller min and max memory clamp 
settings for dedicated coordinator memory estimates. This will help with edge 
cases where planner's memory estimation for coordinator could be 
underestimated/overestimated. This would be similar to memory limits that we 
have today for executors:

 
{code:java}
impala.admission-control.min-query-mem-limit.<resource_pool>
impala.admission-control.max-query-mem-limit.<resource_pool>
{code}
 



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