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From Íñigo Goiri (JIRA) <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-13326) RBF: Improve the interfaces to modify and view mount tables
Date Wed, 04 Apr 2018 22:11:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16426245#comment-16426245
] 

Íñigo Goiri edited comment on HDFS-13326 at 4/4/18 10:10 PM:
-------------------------------------------------------------

Thanks [~gangli2384], as a general comment, I would prefer to keep {{RemoteLocation}} as final.
We could just create a copy of the entry; same for the MountTable, no need to update as we
cna just create a new one and invalidate.
I think this is safer for invalidation, etc.


was (Author: elgoiri):
Thanks [~gangli2384], as a general comment, I would prefer to keep {{RemoteLocation}} as final.
We could just create a copy of the entry.

> RBF: Improve the interfaces to modify and view mount tables
> -----------------------------------------------------------
>
>                 Key: HDFS-13326
>                 URL: https://issues.apache.org/jira/browse/HDFS-13326
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Wei Yan
>            Assignee: Gang Li
>            Priority: Minor
>         Attachments: HDFS-13326.000.patch
>
>
> 1. From DFSRouterAdmin cmd, currently the update logic is implemented inside add operation,
where it has some limitation (e.g. cannot update "readonly" or removing a destination).  Given
the RPC alreadys separate add and update operations, it would be better to do the same in
cmd level.
> 2. Currently in the MountTable tab, the "readonly" field always show empty, no matter
whether the mount entry is readonly or not. From the code perspective, it tries to show:
> {code:java}
> <td class="dfshealth-node-icon dfshealth-mount-read-only-{readonly}"/>{code}
> The federationhealth.html will load hadoop.css, however the hadoop.css doesn't have
classes with a prefix "dfshealth-mount-read-only". This could be fixed in HDFS-13204.



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