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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-2254) Allow setting of end-of-record delimiter for TextInputFormat
Date Thu, 24 Feb 2011 07:11:38 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated MAPREDUCE-2254:
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.23.0
         Assignee: Ahmed Radwan
     Release Note: TextInputFormat may now split lines with delimiters other than newline,
by specifying a configuration parameter "textinputformat.record.delimiter"
     Hadoop Flags: [Reviewed]
           Status: Resolved  (was: Patch Available)

> Allow setting of end-of-record delimiter for TextInputFormat
> ------------------------------------------------------------
>
>                 Key: MAPREDUCE-2254
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2254
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Ahmed Radwan
>            Assignee: Ahmed Radwan
>             Fix For: 0.23.0
>
>         Attachments: MAPREDUCE-2245.patch, MAPREDUCE-2254_r2.patch, MAPREDUCE-2254_r3.patch
>
>
> It will be useful to allow setting the end-of-record delimiter for TextInputFormat. The
current implementation hardcodes '\n', '\r' or '\r\n' as the only possible record delimiters.
This is a problem if users have embedded newlines in their data fields (which is pretty common).
This is also a problem for other tools using this TextInputFormat (See for example: https://issues.apache.org/jira/browse/PIG-836
and https://issues.cloudera.org/browse/SQOOP-136).
> I have wrote a patch to address this issue. This patch allows users to specify any custom
end-of-record delimiter using a new added configuration property. For backward compatibility,
if this new configuration property is absent, then the same exact previous delimiters are
used (i.e., '\n', '\r' or '\r\n').

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