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https://issues.apache.org/jira/browse/HADOOP-7178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13073511#comment-13073511
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Uma Maheswara Rao G commented on HADOOP-7178:
---------------------------------------------

Hi Nicholas,

Thanks a lot for taking a look.

Removed the empty line.

Ant test patch results:
[exec] +1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     +1 tests included.  The patch appears to include 3 new or 
modified tests.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning 
messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number 
of javac compiler warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs 
(version 1.3.9) warnings.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the 
total number of release audit warnings.
     [exec] 
     [exec]     +1 system test framework.  The patch passed system test 
framework compile.
     [exec] 
     [exec] 
     [exec] 
======================================================================
     [exec] 
======================================================================
     [exec]     Finished build.
     [exec] 
======================================================================
     [exec] 
======================================================================
     [exec] 

I verified manually, Tests are passing.

> FileSystem should have an option to control the .crc file creations at Local.
> -----------------------------------------------------------------------------
>
>                 Key: HADOOP-7178
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7178
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>            Reporter: Uma Maheswara Rao G
>            Assignee: Uma Maheswara Rao G
>         Attachments: HADOOP-7178.1.patch, HADOOP-7178.2.patch, 
> HADOOP-7178.3.patch, HADOOP-7178.patch, HADOOP-7178_COMMON.patch, 
> HADOOP-7178_HDFS.patch
>
>
> When we copy the files from DFS to local, it is creating the .crc files in 
> local filesystem for the verification of checksum. When user dont want to do 
> any check sum verifications, this files will not be useful. 
> Command line already has an option ignoreCrc, to control this.
> So, we should have the similar option on FileSystem also..... like 
> fs.ignoreCrc().
>  This should set the setVerifyChecksum to false and also should select the 
> non CheckSumFileSystem as local fs.

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