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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4590) Add more Unit Test Case for HDFS-3701 HDFS Miss Final Block Reading when File is Open for Write
Date Mon, 11 Mar 2013 23:55:12 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jing Zhao updated HDFS-4590:
----------------------------

    Affects Version/s:     (was: 1.0.3)
                       1.2.0
    
> Add more Unit Test Case for HDFS-3701 HDFS Miss Final Block Reading when File is Open
for Write
> -----------------------------------------------------------------------------------------------
>
>                 Key: HDFS-4590
>                 URL: https://issues.apache.org/jira/browse/HDFS-4590
>             Project: Hadoop HDFS
>          Issue Type: Test
>          Components: hdfs-client
>    Affects Versions: 1.2.0
>         Environment: Java Unit Test Case
>            Reporter: Huned Lokhandwala
>            Priority: Minor
>
> Add more Java Unit Test Coverage for the feature HDFS-3701 where the file is opened for
writing, the DFSClient calls one of the datanode owning the last block to get its size. If
this datanode is dead, the socket exception is shallowed and the size of this last block is
equals to zero. Add a unit test case to write to a file, shutdown the datanodes, and then
try to read from the file and expect an Exception. On 1.1.0 it will produce the exception
as expected, but on 1.0.3 it will return a file length of zero after read.

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