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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-10568) Reuse ObjectMapper instance in CombinedHostsFileReader and CombinedHostsFileWriter
Date Thu, 23 Jun 2016 07:03:16 GMT
Yiqun Lin created HDFS-10568:
--------------------------------

             Summary: Reuse ObjectMapper instance in CombinedHostsFileReader and CombinedHostsFileWriter
                 Key: HDFS-10568
                 URL: https://issues.apache.org/jira/browse/HDFS-10568
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: hdfs-client
            Reporter: Yiqun Lin
            Assignee: Yiqun Lin


The {{ObjectMapper}} instance is not reused in class {{CombinedHostsFileReader}} and {{CombinedHostsFileWriter}}.
We can reuse them to improve performance.



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