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https://issues.apache.org/jira/browse/HDFS-12459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16168115#comment-16168115
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Weiwei Yang commented on HDFS-12459:
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Hi [~shahrs87]
Thanks for elaborating your comment, it makes sense. As long as we continue to
let {{WebHdfsFileSystem#getFileBlockLocations}} call
{{GET_FILE_BLOCK_LOCATIONS}}, there is no need to change this class any more.
The new OP {{GETFILEBLOCKLOCATIONS}} is only used in webhdfs REST calls. I have
revised the patch to do so, please see v2 patch. Thanks.
> Fix revert: Add new op GETFILEBLOCKLOCATIONS to WebHDFS REST API
> ----------------------------------------------------------------
>
> Key: HDFS-12459
> URL: https://issues.apache.org/jira/browse/HDFS-12459
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Attachments: HDFS-12459.001.patch, HDFS-12459.002.patch
>
>
> HDFS-11156 was reverted because the implementation was non optimal, based on
> the suggestion from [~shahrs87], we should avoid creating a dfs client to get
> block locations because that create extra RPC call. Instead we should use
> {{NamenodeProtocols#getBlockLocations}} then covert {{LocatedBlocks}} to
> {{BlockLocation[]}}.
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