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https://issues.apache.org/jira/browse/HADOOP-14901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hanisha Koneru reopened HADOOP-14901:
-------------------------------------

Patch for branch-2

> ReuseObjectMapper in Hadoop Common
> ----------------------------------
>
>                 Key: HADOOP-14901
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14901
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Hanisha Koneru
>            Assignee: Hanisha Koneru
>            Priority: Minor
>         Attachments: HADOOP-14901.001.patch, HADOOP-14901-brnach-2.001.patch
>
>
> It is recommended to reuse ObjectMapper, if possible, for better performance. 
> We can aslo use ObjectReader or ObjectWriter to replace the ObjectMapper in 
> some places: they are straightforward and thread safe.



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