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Bikas Saha commented on YARN-2139: ---------------------------------- Thanks for the update. Its not clear to me how we are going to clearly de-couple 1) and 2) from 3). From first thoughts, scheduling is what prevents over-allocation and the NM enforces the scheduling decision. Could you please throw some light on that? > [Umbrella] Support for Disk as a Resource in YARN > -------------------------------------------------- > > Key: YARN-2139 > URL: https://issues.apache.org/jira/browse/YARN-2139 > Project: Hadoop YARN > Issue Type: New Feature > Reporter: Wei Yan > Attachments: Disk_IO_Isolation_Scheduling_3.pdf, > Disk_IO_Scheduling_Design_1.pdf, Disk_IO_Scheduling_Design_2.pdf, > YARN-2139-prototype-2.patch, YARN-2139-prototype.patch > > > YARN should consider disk as another resource for (1) scheduling tasks on > nodes, (2) isolation at runtime, (3) spindle locality. -- This message was sent by Atlassian JIRA (v6.3.4#6332)