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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2494) [YARN-796] Node label manager API and storage implementations
Date Tue, 23 Sep 2014 08:44:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-2494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14144556#comment-14144556
] 

Hadoop QA commented on YARN-2494:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12670661/YARN-2494.patch
  against trunk revision f557820.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 5 new or modified
test files.

    {color:red}-1 javac{color:red}.  The patch appears to cause the build to fail.

Console output: https://builds.apache.org/job/PreCommit-YARN-Build/5082//console

This message is automatically generated.

> [YARN-796] 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
>         Attachments: 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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