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From "VITALIY SAVCHENKO (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-13725) Open MapFile for append
Date Mon, 17 Oct 2016 11:18:58 GMT

             Summary: Open MapFile for append
                 Key: HADOOP-13725
                 URL: https://issues.apache.org/jira/browse/HADOOP-13725
             Project: Hadoop Common
          Issue Type: New Feature
            Reporter: VITALIY SAVCHENKO

I think it possible to open MapFile for appending.

SequenceFile support it (Option SequenceFile.Writer.appendIfExists(true) HADOOP-7139)

Now it almost working. But if use SequenceFile.Writer.appendIfExists(true) MapFile.Writer
- it not read last key and does not check new keys. That's why MapFile can be corrupted.

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