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Karthik Kambatla commented on YARN-2139: ---------------------------------------- It is very similar to vcores. vdisks is the number of virtual disks, no metric just a number. If we want to allow upto 'n' tasks to share a disk, {{vdisks = n * num-disks}}. For cases with n > 1, spindle locality will help with ensuring all the 'n' vdisks correspond to the same spindle(s). > [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_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)