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Hitesh Shah commented on YARN-689: ---------------------------------- The assumption you seem to be making is that all applications will require the same minimum headroom. This "may" be the case with all MR jobs but need not be true for other applications running on the same cluster. This could be solved by just setting minimum allocation to 512 MB. > Add multiplier unit to resourcecapabilities > ------------------------------------------- > > Key: YARN-689 > URL: https://issues.apache.org/jira/browse/YARN-689 > Project: Hadoop YARN > Issue Type: Bug > Components: api, scheduler > Affects Versions: 2.0.4-alpha > Reporter: Alejandro Abdelnur > Assignee: Alejandro Abdelnur > Attachments: YARN-689.patch > > > Currently we overloading the minimum resource value as the actual multiplier > used by the scheduler. > Today with a minimum memory set to 1GB, requests for 1.5GB are always > translated to allocation of 2GB. > We should decouple the minimum allocation from the multiplier. > The multiplier should also be exposed to the client via the > RegisterApplicationMasterResponse -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira