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From "Jens Rabe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-6218) It should be possible to chain-load multiple MapFiles on the fly and read the records in an ascending order
Date Sun, 18 Jan 2015 13:59:34 GMT
Jens Rabe created MAPREDUCE-6218:
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             Summary: It should be possible to chain-load multiple MapFiles on the fly and
read the records in an ascending order
                 Key: MAPREDUCE-6218
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6218
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
            Reporter: Jens Rabe
            Priority: Minor


In a scenario where there are many MapFiles which all share the same key/value types, e.g.,
when dealing with measured data from sensors, it should be possible to chain-load multiple
MapFiles. That means, there should be a reader which can be supplied with one or more directories
containing MapFiles, and it should be possible to read the records of all files in order.



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