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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-13655) RBF: Add missing ClientProtocol APIs to RBF
Date Mon, 03 Sep 2018 19:40:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16602424#comment-16602424

Brahma Reddy Battula commented on HDFS-13655:

Logged umbrella HDFS-13891 to stabilisation the phase-1 work which we are targeting to 3.3

bq.If needed, we can repeat this once that's done - if there are new misc. things that we
don't feel can go into trunk, we create 'feature branch y' and set a new goal for it.

Sure, we can do, if there are more.

Discussed with [~elgoiri] same, [~elgoiri] please correct me,if I am wrong.

> RBF: Add missing ClientProtocol APIs to RBF
> -------------------------------------------
>                 Key: HDFS-13655
>                 URL: https://issues.apache.org/jira/browse/HDFS-13655
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Xiao Chen
>            Priority: Major
> As [discussed|https://issues.apache.org/jira/browse/HDFS-12858?focusedCommentId=16500975&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16500975|#comment-16500975] with
[~elgoiri], there are some HDFS methods that does not take path as a parameter. We should
support these to work with federation.
> The ones missing are:
>  * Snapshots
>  * Storage policies
>  * Encryption zones
>  * Cache pools
> One way to reasonably have them to work with federation is to 'list' each nameservice
and concat the results. This can be done pretty much the same as {{refreshNodes()}} and
it would be a matter of querying all the subclusters and aggregate the output (e.g., {{getDatanodeReport()}}.)

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