Carlo Curino commented on YARN-1039:

Hi Guys, I am just tuning in now... (apologies if I am misinterpreting the 
conversation), but it seems that some of the proposed changes resemble what we 
were proposing for the reservation YARN-1051 work. In the sub-task YARN-1708 we 
propose and extension of ResourceRequest that expresses the "duration" (or 
leaseDuration if you prefer) for which resources will be reserved... The same 
concept could be used here as a hint from the user on "for how long I expect to 
hold onto the resources". What I am suggesting is that having a "time" 
associated with a ResourceRequest could serve both purposes, and be a generally 
useful hint to the RM.


> Add parameter for YARN resource requests to indicate "long lived"
> -----------------------------------------------------------------
>                 Key: YARN-1039
>                 URL: https://issues.apache.org/jira/browse/YARN-1039
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 3.0.0, 2.1.1-beta
>            Reporter: Steve Loughran
>            Assignee: Craig Welch
>         Attachments: YARN-1039.1.patch, YARN-1039.2.patch, YARN-1039.3.patch
> A container request could support a new parameter "long-lived". This could be 
> used by a scheduler that would know not to host the service on a transient 
> (cloud: spot priced) node.
> Schedulers could also decide whether or not to allocate multiple long-lived 
> containers on the same node

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