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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8345) Storage policy APIs must be exposed via the FileSystem interface
Date Wed, 13 May 2015 00:13:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14541080#comment-14541080
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Jing Zhao commented on HDFS-8345:
---------------------------------

Thanks for working on this, Arpit! The patch looks good to me overall. My only concern is
that only exposing {{setStoragePolicy}} and {{getStoragePoliciyNames}} may be incomplete,
since the user will only know the names of the policies. Since {{StorageType}} is already
in {{org.apache.hadoop.fs}}, how about also moving {{BlockStoragePolicy}} into {{org.apache.hadoop.fs}}
and expose it as public? Then we can expose both {{setStoragePolicy}} and {{getStoragePolicies}}
in {{FileSystem}}.

> Storage policy APIs must be exposed via the FileSystem interface
> ----------------------------------------------------------------
>
>                 Key: HDFS-8345
>                 URL: https://issues.apache.org/jira/browse/HDFS-8345
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.7.0
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>              Labels: BB2015-05-TBR
>         Attachments: HDFS-8345.01.patch, HDFS-8345.02.patch
>
>
> The storage policy APIs are not exposed via FileSystem. Since DistributedFileSystem is
tagged as LimitedPrivate we should expose the APIs through FileSystem for use by other applications.



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