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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3049) [Storage Implementation] Implement storage reader interface to fetch raw data from HBase backend
Date Thu, 06 Aug 2015 21:44:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14660853#comment-14660853
] 

Zhijie Shen commented on YARN-3049:
-----------------------------------

Here's a quick example:
{code}
  @Test
  public void testXXXX() {
    // imitate the process to write a long
    Long a = 1234567890L;
    byte[] b = Bytes.toBytes(a);
    String c = Bytes.toString(b);
    // imitate the process to read a long
    byte[] d = Bytes.toBytes(c);
    Long e = Bytes.toLong(d);
    assertEquals(a, e);
  }
{code}
b and d are different bytes, then. Do I use Bytes in a wrong way?

> [Storage Implementation] Implement storage reader interface to fetch raw data from HBase
backend
> ------------------------------------------------------------------------------------------------
>
>                 Key: YARN-3049
>                 URL: https://issues.apache.org/jira/browse/YARN-3049
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Sangjin Lee
>            Assignee: Zhijie Shen
>         Attachments: YARN-3049-WIP.1.patch, YARN-3049-WIP.2.patch, YARN-3049-WIP.3.patch,
YARN-3049-YARN-2928.2.patch, YARN-3049-YARN-2928.3.patch, YARN-3049-YARN-2928.4.patch, YARN-3049-YARN-2928.5.patch,
YARN-3049-YARN-2928.6.patch, YARN-3049-YARN-2928.7.patch
>
>
> Implement existing ATS queries with the new ATS reader design.



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