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https://issues.apache.org/jira/browse/HDFS-9724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15127981#comment-15127981
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Haohui Mai commented on HDFS-9724:
----------------------------------

Is {ObjectMapper#writeValueAsString()} reentrant?

> WebHDFS listing is too slow after HDFS-6565
> -------------------------------------------
>
>                 Key: HDFS-9724
>                 URL: https://issues.apache.org/jira/browse/HDFS-9724
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: performance
>    Affects Versions: 2.7.0
>            Reporter: Akira AJISAKA
>            Assignee: Akira AJISAKA
>            Priority: Critical
>         Attachments: HDFS-9724-branch-2.7.01.patch, HDFS-9724.01.patch
>
>
> Eremikhin Alexey reported at user ML that WebHDFS listing is too slow because 
> of HDFS-6565.
> https://mail-archives.apache.org/mod_mbox/hadoop-hdfs-user/201601.mbox/%3C56AB857B.6020105%40corp.badoo.com%3E



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