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https://issues.apache.org/jira/browse/HDFS-12064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16177358#comment-16177358
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Anu Engineer commented on HDFS-12064:
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[~hanishakoneru] +1, on this change. But we have 3 checkstyle warnings, could
you please fix them?
> Reuse object mapper in HDFS
> ---------------------------
>
> Key: HDFS-12064
> URL: https://issues.apache.org/jira/browse/HDFS-12064
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Mingliang Liu
> Assignee: Hanisha Koneru
> Priority: Minor
> Attachments: HDFS-12064.001.patch
>
>
> Currently there are a few places that are not following the recommended
> pattern of using object mapper - reuse if possible. Actually we can use
> {{ObjectReader}} or {{ObjectWriter}} to replace the object mapper in some
> places: they are straightforward and thread safe.
> The benefit is all about performance, so in unit testing code I assume we
> don't have to worry too much.
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