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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5343) When cat command is issued on snapshot files getting unexpected result
Date Wed, 16 Oct 2013 01:04:41 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13796281#comment-13796281
] 

Hadoop QA commented on HDFS-5343:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12608475/HDFS-5343-002.patch
  against trunk revision .

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

    {color:green}+1 tests included{color}.  The patch appears to include 1 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}.  The javadoc tool did not generate any 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
1.3.9) 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.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/5204//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5204//console

This message is automatically generated.

> When cat command is issued on snapshot files getting unexpected result
> ----------------------------------------------------------------------
>
>                 Key: HDFS-5343
>                 URL: https://issues.apache.org/jira/browse/HDFS-5343
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>            Reporter: sathish
>            Assignee: sathish
>         Attachments: HDFS-5343-002.patch
>
>
> first if we create one file with some file length and take the snapshot of that file,and
again append some data through append method to that file,then if we do cat command operation
on snapshot of that file,in general it should dispaly the data what we added with create operation,but
it is displaying the total data i.e. create +_ appended data.
> but if we do the same operation and if we read the contents of snapshot file through
input stream it is just displaying the data created in snapshoted files.
> in this the behaviour of cat command and reading through inputstream is getting different



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