[jira] Commented: (HADOOP-6150) Need to be able to instantiate a comparator instance from a comparator string without creating a TFile.Reader object

["Hong Tang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-6150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12734839#action_12734839 ] 

Hong Tang commented on HADOOP-6150:
-----------------------------------

test-patch output for patch for hadoop trunk:

     [exec] -1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     -1 tests included.  The patch doesn't appear to include any new or modified tests.
     [exec]                         Please justify why no new tests are needed for this patch.
     [exec]                         Also please list what manual steps were performed to verify this patch.
     [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 warnings.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the total number of release audit warnings.
 

> Need to be able to instantiate a comparator instance from a comparator string without creating a TFile.Reader object
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-6150
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6150
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>    Affects Versions: 0.20.0, 0.21.0
>            Reporter: Hong Tang
>            Assignee: Hong Tang
>            Priority: Minor
>             Fix For: 0.21.0
>
>         Attachments: HADOOP-6150-0721.patch, HADOOP-6150-0723-for-20.patch
>
>
> Occasionally, we want have the same instance of comparator object represented by the TFile comparator string. We should be able to do that without requiring to first open up a tfile that was previously written use the same comparator.

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