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Craig Welch commented on YARN-796: ---------------------------------- It looks like the FileSystemNodeLabelManager will just append changes to the edit log forever, until it is restarted, is that correct? If so, a long-running cluster with lots of changes could result in a rather large edit log. I think every so many writes (N writes) a recovery should be "forced" to clean up the edit log and consolidate state (do a recover...) > Allow for (admin) labels on nodes and resource-requests > ------------------------------------------------------- > > Key: YARN-796 > URL: https://issues.apache.org/jira/browse/YARN-796 > Project: Hadoop YARN > Issue Type: Sub-task > Affects Versions: 2.4.1 > Reporter: Arun C Murthy > Assignee: Wangda Tan > Attachments: LabelBasedScheduling.pdf, > Node-labels-Requirements-Design-doc-V1.pdf, > Node-labels-Requirements-Design-doc-V2.pdf, YARN-796-Diagram.pdf, > YARN-796.node-label.consolidate.1.patch, > YARN-796.node-label.consolidate.2.patch, > YARN-796.node-label.consolidate.3.patch, > YARN-796.node-label.consolidate.4.patch, > YARN-796.node-label.consolidate.5.patch, > YARN-796.node-label.consolidate.6.patch, > YARN-796.node-label.consolidate.7.patch, > YARN-796.node-label.consolidate.8.patch, YARN-796.node-label.demo.patch.1, > YARN-796.patch, YARN-796.patch4 > > > It will be useful for admins to specify labels for nodes. Examples of labels > are OS, processor architecture etc. > We should expose these labels and allow applications to specify labels on > resource-requests. > Obviously we need to support admin operations on adding/removing node labels. -- This message was sent by Atlassian JIRA (v6.3.4#6332)