[HADOOP-7096] Allow setting of end-of-record delimiter for TextInputFormat

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0, 0.23.0
• Hadoop Flags: Reviewed
• Assignee: Ahmed Radwan
• Reporter: Ahmed Radwan
• Created: 11/Jan/11 01:08
• Updated: 28/Jul/14 14:06
• Resolved: 09/Feb/11 01:42

Description

The patch for https://issues.apache.org/jira/browse/MAPREDUCE-2254 required minor changes to the LineReader class to allow extensions (see attached 2.patch). Description copied below:

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').

Issue Links

• is part of: MAPREDUCE-2254 Allow setting of end-of-record delimiter for TextInputFormat