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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10568) Reuse ObjectMapper instance in CombinedHostsFileReader and CombinedHostsFileWriter
Date Thu, 30 Jun 2016 01:53:12 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15356313#comment-15356313
] 

Yiqun Lin commented on HDFS-10568:
----------------------------------

Thanks [~ajisakaa] for commit!

> 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
>             Fix For: 2.9.0
>
>         Attachments: HDFS-10568.001.patch, HDFS-10568.002.patch
>
>
> The {{ObjectMapper}} instance is not reused in class {{CombinedHostsFileReader}} and
{{CombinedHostsFileWriter}}. We can reuse them to improve performance.
> Here are related issues: HDFS-9724, HDFS-9768.



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