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Posted to hdfs-issues@hadoop.apache.org by "Íñigo Goiri (JIRA)" <ji...@apache.org> on 2018/08/02 17:13:00 UTC
[jira] [Commented] (HDFS-13655) RBF: Add missing ClientProtocol
APIs to RBF
[ https://issues.apache.org/jira/browse/HDFS-13655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16567093#comment-16567093 ]
Íñigo Goiri commented on HDFS-13655:
------------------------------------
Let's start the work on the new patches but let's hold on committing anything.
Likely we will branch this out.
> 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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