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Subject: [jira] [Commented] (HDFS-11156) Add new op GETFILEBLOCKLOCATIONS to
 WebHDFS REST API
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archived-at: Fri, 02 Dec 2016 19:42:01 -0000


    [ https://issues.apache.org/jira/browse/HDFS-11156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15716066#comment-15716066 ] 

Hudson commented on HDFS-11156:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10930 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/10930/])
HDFS-11156. Add new op GETFILEBLOCKLOCATIONS to WebHDFS REST API. (liuml07: rev c7ff34f8dcca3a2024230c5383abd9299daa1b20)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/JsonUtil.java
* (edit) hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/web/resources/NamenodeWebHdfsMethods.java
* (edit) hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/resources/GetOpParam.java
* (edit) hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/JsonUtilClient.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFS.java


> Add new op GETFILEBLOCKLOCATIONS to WebHDFS REST API
> ----------------------------------------------------
>
>                 Key: HDFS-11156
>                 URL: https://issues.apache.org/jira/browse/HDFS-11156
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: webhdfs
>    Affects Versions: 2.7.3
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>         Attachments: HDFS-11156.01.patch, HDFS-11156.02.patch, HDFS-11156.03.patch, HDFS-11156.04.patch, HDFS-11156.05.patch, HDFS-11156.06.patch
>
>
> Following webhdfs REST API
> {code}
> http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=GET_BLOCK_LOCATIONS&offset=0&length=1
> {code}
> will get a response like
> {code}
> {
>   "LocatedBlocks" : {
>     "fileLength" : 1073741824,
>     "isLastBlockComplete" : true,
>     "isUnderConstruction" : false,
>     "lastLocatedBlock" : { ... },
>     "locatedBlocks" : [ {...} ]
>   }
> }
> {code}
> This represents for *o.a.h.h.p.LocatedBlocks*. However according to *FileSystem* API, 
> {code}
> public BlockLocation[] getFileBlockLocations(Path p, long start, long len)
> {code}
> clients would expect an array of BlockLocation. This mismatch should be fixed. Marked as Incompatible change as this will change the output of the GET_BLOCK_LOCATIONS API.



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