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Posted to common-issues@hadoop.apache.org by "David Mollitor (JIRA)" <ji...@apache.org> on 2019/05/10 19:02:00 UTC

[jira] [Updated] (HADOOP-16307) Intern User Name and Group Name in FileStatus

     [ https://issues.apache.org/jira/browse/HADOOP-16307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Mollitor updated HADOOP-16307:
------------------------------------
    Attachment: HADOOP-16307.1.patch

> Intern User Name and Group Name in FileStatus
> ---------------------------------------------
>
>                 Key: HADOOP-16307
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16307
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 3.3.0
>            Reporter: David Mollitor
>            Assignee: David Mollitor
>            Priority: Major
>             Fix For: 3.3.0
>
>         Attachments: HADOOP-16307.1.patch
>
>
> Client is going OOM with large directory listing {{ClientNamenodeProtocolTranslatorPB#getListing}}
> I captured a memory dump and noted that each and every {{LocatedFileStatus}} has its own copy of the user name and group name.  It is sucking down a lot of memory.



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