[jira] [Updated] (YARN-2494) Node label manager API and storage implementations

["Sumit Kumar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-2494?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sumit Kumar updated YARN-2494:
------------------------------
    Summary: Node label manager API and storage implementations  (was: [YARN-2494] Node label manager API and storage implementations)

> Node label manager API and storage implementations
> --------------------------------------------------
>
>                 Key: YARN-2494
>                 URL: https://issues.apache.org/jira/browse/YARN-2494
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>             Fix For: 2.6.0
>
>         Attachments: YARN-2494.20141009-1.patch, YARN-2494.20141009-2.patch, YARN-2494.patch, YARN-2494.patch, YARN-2494.patch, YARN-2494.patch, YARN-2494.patch, YARN-2494.patch, YARN-2494.patch, YARN-2494.patch
>
>
> This JIRA includes APIs and storage implementations of node label manager,
> NodeLabelManager is an abstract class used to manage labels of nodes in the cluster, it has APIs to query/modify
> - Nodes according to given label
> - Labels according to given hostname
> - Add/remove labels
> - Set labels of nodes in the cluster
> - Persist/recover changes of labels/labels-on-nodes to/from storage
> And it has two implementations to store modifications
> - Memory based storage: It will not persist changes, so all labels will be lost when RM restart
> - FileSystem based storage: It will persist/recover to/from FileSystem (like HDFS), and all labels and labels-on-nodes will be recovered upon RM restart



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