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https://issues.apache.org/jira/browse/HDFS-7564?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14255901#comment-14255901
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Yongjun Zhang commented on HDFS-7564:
-------------------------------------

HI Hari,

Thanks for reporting the issue. Would you please provide some more details 
about how the hang/fail relates to the loading of the map file? What's the 
symptom? is there any specific entry in the map file that's causing trouble? 
and some logs to would indicate that if there is any? Thanks.



> NFS gateway dynamically reload UID/GID mapping file /etc/nfs.map
> ----------------------------------------------------------------
>
>                 Key: HDFS-7564
>                 URL: https://issues.apache.org/jira/browse/HDFS-7564
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: nfs
>    Affects Versions: 2.6.0
>         Environment: HDP 2.2
>            Reporter: Hari Sekhon
>            Assignee: Yongjun Zhang
>            Priority: Minor
>
> Add dynamic reload of the NFS gateway UID/GID mappings file /etc/nfs.map 
> (default for static.id.mapping.file).
> It seems that this is currently only loaded upon restart of the NFS gateway 
> would cause active clients to hang or fail.
> Regards,
> Hari Sekhon
> http://www.linkedin.com/in/harisekhon



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