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https://issues.apache.org/jira/browse/HDFS-9724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15124672#comment-15124672
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Mingliang Liu commented on HDFS-9724:
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Thanks for working on this, [~ajisakaa]. Patch looks good to me. +1
(non-binding)
As we don't call any configuration methods after created, we can and should
reuse {{ObjectMapper}} objects as much as possible for performance reasons.
{{ObjectMapper}} saves a lot of information about the Java classes that they
are mapping.
> 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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