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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1942) Many of ConverterUtils methods need to have public interfaces
Date Fri, 10 Jun 2016 18:11:21 GMT

     [ https://issues.apache.org/jira/browse/YARN-1942?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wangda Tan updated YARN-1942:
-----------------------------
    Attachment: YARN-1942-branch-2.8.0013.patch

Attached patch for branch-2.8 as well.

> Many of ConverterUtils methods need to have public interfaces
> -------------------------------------------------------------
>
>                 Key: YARN-1942
>                 URL: https://issues.apache.org/jira/browse/YARN-1942
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api
>    Affects Versions: 2.4.0
>            Reporter: Thomas Graves
>            Assignee: Wangda Tan
>            Priority: Critical
>         Attachments: YARN-1942-branch-2.0012.patch, YARN-1942-branch-2.0013.patch, YARN-1942-branch-2.8.0013.patch,
YARN-1942.1.patch, YARN-1942.10.patch, YARN-1942.11.patch, YARN-1942.12.patch, YARN-1942.13.patch,
YARN-1942.2.patch, YARN-1942.3.patch, YARN-1942.4.patch, YARN-1942.5.patch, YARN-1942.6.patch,
YARN-1942.8.patch, YARN-1942.9.patch
>
>
> ConverterUtils has a bunch of functions that are useful to application masters.   It
should either be made public or we make some of the utilities in it public or we provide other
external apis for application masters to use.  Note that distributedshell and MR are both
using these interfaces. 
> For instance the main use case I see right now is for getting the application attempt
id within the appmaster:
> String containerIdStr =
>           System.getenv(Environment.CONTAINER_ID.name());
> ConverterUtils.toContainerId
> ContainerId containerId = ConverterUtils.toContainerId(containerIdStr);
>       ApplicationAttemptId applicationAttemptId =
>           containerId.getApplicationAttemptId();
> I don't see any other way for the application master to get this information.  If there
is please let me know.



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