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From "CW Chung (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1877) Create a functional test tool for file read/write
Date Tue, 03 May 2011 22:29:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13028477#comment-13028477
] 

CW Chung commented on HDFS-1877:
--------------------------------

Good question. The differences are:
1. This tool would be run as a vanilla client, not as map/reduce tasks. So you can test HDFS
file operations without depending on another subsystem(map/reduce).
2. The focus of the tool is not in the performance, but in the verification of functional
correctness. 

> Create a functional test tool for file read/write
> -------------------------------------------------
>
>                 Key: HDFS-1877
>                 URL: https://issues.apache.org/jira/browse/HDFS-1877
>             Project: Hadoop HDFS
>          Issue Type: Test
>          Components: test
>    Affects Versions: 0.22.0
>            Reporter: CW Chung
>            Priority: Minor
>
> It would be a great to have a tool, running on a real grid, to perform function test
(and stress tests to certain extent) for the file operations. The tool would be written in
Java and makes HDFS API calls to read, write, append, hflush hadoop files. The tool would
be usable standalone, or as a building block for other regression or stress test suites (written
in shell, perl, python, etc).

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