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https://issues.apache.org/jira/browse/HDFS-12884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16408958#comment-16408958
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Hudson commented on HDFS-12884:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13865 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/13865/])
HDFS-12884. BlockUnderConstructionFeature.truncateBlock should be of (shv: rev 
8d898ab25f1c2032a07c9bbd96ba3d0c4eb5be87)
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirTruncateOp.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockUnderConstructionFeature.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/FileDiffList.java


> BlockUnderConstructionFeature.truncateBlock should be of type BlockInfo
> -----------------------------------------------------------------------
>
>                 Key: HDFS-12884
>                 URL: https://issues.apache.org/jira/browse/HDFS-12884
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 2.7.4
>            Reporter: Konstantin Shvachko
>            Assignee: chencan
>            Priority: Major
>             Fix For: 3.1.0, 2.10.0, 2.9.1, 2.8.4, 2.7.6, 3.0.2, 3.2.0
>
>         Attachments: HDFS-12884.001.patch, HDFS-12884.002.patch, 
> HDFS-12884.003.patch
>
>
> {{BlockUnderConstructionFeature.truncateBlock}} type should be changed to 
> {{BlockInfo}} from {{Block}}. {{truncateBlock}} is always assigned as 
> {{BlockInfo}}, so this will avoid unnecessary casts.



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