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https://issues.apache.org/jira/browse/HADOOP-14901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16177286#comment-16177286
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Anu Engineer commented on HADOOP-14901:
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[~hanishakoneru] thanks for identifying and fixing this issue. This is a kind
of issue that worries me when I commit. Hadoop common might impact the
downstream, unfortunately, we don't get a test coverage till we commit. So I am
going to commit to trunk and wait for 3.0 beta1 to be released.
+1, I will commit this shortly in the trunk.
cc: [~andrew.wang] I will get this change in 3.0 after the beta1 is cut, this
is performance change that 3.0 beta1 can live without.
> 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
>
>
> 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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