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Date: Mon, 13 Apr 2015 22:51:12 +0000 (UTC)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12819836.1428614254000.75919.1428965472380@Atlassian.JIRA>
In-Reply-To: <JIRA.12819836.1428614254000@Atlassian.JIRA>
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 <JIRA.12819836.1428614254957@arcas>
Subject: [jira] [Commented] (HDFS-8117) More accurate verification in
 SimulatedFSDataset: replace DEFAULT_DATABYTE with patterned data
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    [ https://issues.apache.org/jira/browse/HDFS-8117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14493216#comment-14493216 ] 

Hadoop QA commented on HDFS-8117:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12725021/HDFS-8117.003.patch
  against trunk revision 7fc50e2.

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

    {color:green}+1 tests included{color}.  The patch appears to include 6 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/10263//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/10263//console

This message is automatically generated.

> More accurate verification in SimulatedFSDataset: replace DEFAULT_DATABYTE with patterned data
> ----------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8117
>                 URL: https://issues.apache.org/jira/browse/HDFS-8117
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.6.0
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>             Fix For: 3.0.0
>
>         Attachments: HDFS-8117-branch2.patch, HDFS-8117.000.patch, HDFS-8117.001.patch, HDFS-8117.002.patch, HDFS-8117.003.patch
>
>
> Currently {{SimulatedFSDataset}} uses a single {{DEFAULT_DATABYTE}} to simulate _all_ block content. This is not accurate because the return of this byte just means the read request has hit an arbitrary position in an arbitrary simulated block.
> This JIRA aims to improve it with a more accurate verification. When position {{p}} of a simulated block {{b}} is accessed, the returned byte is {{b}}'s block ID plus {{p}}, moduled by the max value of a byte.


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