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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-728) Creat a comprehensive functional test for append
Date Fri, 23 Oct 2009 20:23:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12769410#action_12769410
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Hairong Kuang commented on HDFS-728:
------------------------------------

This test is not intended as a junit test. Instead, it should run as an application from the
command line.

> Creat a comprehensive functional test for append
> ------------------------------------------------
>
>                 Key: HDFS-728
>                 URL: https://issues.apache.org/jira/browse/HDFS-728
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>    Affects Versions: 0.21.0
>            Reporter: Hairong Kuang
>            Assignee: Hairong Kuang
>             Fix For: 0.21.0
>
>         Attachments: appendTest.patch
>
>
> This test aims to do
> 1. create a file of len1;
> 2. reopen the file for append;
> 3. write len2 bytes to the file and hflush;
> 4. write len3 bytes to the file and close the file;
> 5. validate the content of the file.
> Len1 ranges from [0, 2*BLOCK_SIZE+1], len2 ranges from [0, BLOCK_SIZE+1], and len3 ranges
from [0, BLOCK_SIZE+1]. The test tries all combination of len1, len2, and len3. To minimize
the running time, bytes per checksum is set to be 4 bytes, each packet size is set to be bytes
per checksum, and each block contains 2 packets.

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