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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8815) DFS getStoragePolicy implementation using single RPC call
Date Wed, 05 Aug 2015 05:24:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654838#comment-14654838
] 

Vinayakumar B commented on HDFS-8815:
-------------------------------------

Just one nit,
{{ private BlockStoragePolicy[] policies;}} seems unused.

+1 once addressed.

[~arpitagarwal], Do you want to take a look ?

> DFS getStoragePolicy implementation using single RPC call
> ---------------------------------------------------------
>
>                 Key: HDFS-8815
>                 URL: https://issues.apache.org/jira/browse/HDFS-8815
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.8.0
>            Reporter: Arpit Agarwal
>            Assignee: Surendra Singh Lilhore
>         Attachments: HDFS-8815-001.patch, HDFS-8815-002.patch, HDFS-8815-003.patch
>
>
> HADOOP-12161 introduced a new {{FileSystem#getStoragePolicy}} call. The DFS implementation
of the call requires two RPC calls, the first to fetch the storage policy ID and the second
to fetch the policy suite to map the policy ID to a {{BlockStoragePolicySpi}}.
> Fix the implementation to require a single RPC call.



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