Carlo Curino commented on YARN-1990:

YARN-1051 is committed. If someone tries it and finds issues with the 
time-to-allocation, we can re-hash this. Otherwise we can just close this in a 

> Track time-to-allocation for different size containers 
> -------------------------------------------------------
>                 Key: YARN-1990
>                 URL: https://issues.apache.org/jira/browse/YARN-1990
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
> Allocation of Large Containers are notoriously problematic, as smaller 
> containers can more easily grab resources. 
> The proposal for this JIRA is to maintain a map of container sizes, and 
> time-to-allocation, that can be used as:
> * general insight on cluster behavior, 
> * to inform the reservation-system, and allows us to "account for delays" in 
> allocation, so that the user reservation is respected regardless the size of 
> containers requested.

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