hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Christopher Auston (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-10138) Support custom record separator with streaming
Date Fri, 29 Nov 2013 18:14:35 GMT
Christopher Auston created HADOOP-10138:

             Summary: Support custom record separator with streaming
                 Key: HADOOP-10138
                 URL: https://issues.apache.org/jira/browse/HADOOP-10138
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Christopher Auston
            Priority: Minor

We store XML documents in sequence files as values.  The values may contain newlines.  It
is useful to have hadoop-streaming output a zero-byte instead of a newline to delimit key-value
boundaries.  The mapping script can then find the key-value pairs unambiguously by looking
for zero-bytes.
I find this really useful so I can use a ruby script for quick adhoc queries.
I have a patch with unit test that I will attach.

This message was sent by Atlassian JIRA

View raw message