You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-dev@hadoop.apache.org by "Steven Wong (JIRA)" <ji...@apache.org> on 2010/06/26 03:01:54 UTC

[jira] Created: (HADOOP-6842) "hadoop fs -text" does not give a useful text representation of MapWritable objects

"hadoop fs -text" does not give a useful text representation of MapWritable objects
-----------------------------------------------------------------------------------

                 Key: HADOOP-6842
                 URL: https://issues.apache.org/jira/browse/HADOOP-6842
             Project: Hadoop Common
          Issue Type: Improvement
    Affects Versions: 0.20.0
            Reporter: Steven Wong


If a sequence file contains MapWritable objects, running "hadoop fs -text" on the file prints the following for each MapWritable:

org.apache.hadoop.io.MapWritable@4f8235ed

To be more useful, it should print out the contents of the map instead. This can be done by adding a toString method to MapWritable, i.e. something like:

public String toString() {
    return (new TreeMap<Writable, Writable>(instance)).toString();
}


-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.