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https://issues.apache.org/jira/browse/HDFS-14849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16940099#comment-16940099
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Hudson commented on HDFS-14849:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #17410 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/17410/])
Revert "HDFS-14849. Erasure Coding: the internal block is replicated 
(ayushsaxena: rev 0d5d0b914ac959ce2c41f483ac5b74f58053cd00)
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestBlockMissingException.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
HDFS-14849. Erasure Coding: the internal block is replicated many times 
(ayushsaxena: rev c4c8d5fd0e3c17ccdcf18ece8e005f510328b060)
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java


> Erasure Coding: the internal block is replicated many times when datanode is 
> decommissioning
> --------------------------------------------------------------------------------------------
>
>                 Key: HDFS-14849
>                 URL: https://issues.apache.org/jira/browse/HDFS-14849
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: ec, erasure-coding
>    Affects Versions: 3.3.0
>            Reporter: HuangTao
>            Assignee: HuangTao
>            Priority: Major
>              Labels: EC, HDFS, NameNode
>             Fix For: 3.3.0
>
>         Attachments: HDFS-14849.001.patch, HDFS-14849.002.patch, 
> fsck-file.png, liveBlockIndices.png, scheduleReconstruction.png
>
>
> When the datanode keeping in DECOMMISSION_INPROGRESS status, the EC internal 
> block in that datanode will be replicated many times.
> // added 2019/09/19
> I reproduced this scenario in a 163 nodes cluster with decommission 100 nodes 
> simultaneously. 
>  !scheduleReconstruction.png! 
>  !fsck-file.png! 



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