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https://issues.apache.org/jira/browse/HDFS-10827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15576415#comment-15576415
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Hudson commented on HDFS-10827:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10614 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/10614/])
HDFS-10827. When there are unrecoverable ec block groups, Namenode Web (jing9: 
rev adb96e109f1ab4a2c3d469e716c084d0a891b951)
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* (edit) 
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java


> When there are unrecoverable ec block groups, Namenode Web UI shows "There 
> are X missing blocks." but doesn't show the block names.
> -----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-10827
>                 URL: https://issues.apache.org/jira/browse/HDFS-10827
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: erasure-coding
>            Reporter: Takanobu Asanuma
>            Assignee: Takanobu Asanuma
>             Fix For: 3.0.0-alpha2
>
>         Attachments: HDFS-10827.1.patch, HDFS-10827.2.patch, 
> HDFS-10827.3.patch, HDFS-10827.4.patch, case_2.png, case_3.png
>
>
> For RS-6-3, when there is one ec block group and
> 1) 0~3 out of 9 internal blocks are missing, NN Web UI doesn't show any warns.
> 2) 4~8 out of 9 internal blocks are missing, NN Web UI shows "There are 1 
> missing blocks." but doesn't show the block names. (please see case_2.png)
> 3) 9 out of 9 internal blocks are missing, NN Web UI shows "There are 1 
> missing blocks." and also shows the block name. (please see case_3.png)
> We should fix the case 2). I think NN Web UI should show the block names 
> since the ec block group is unrecoverable.
> The values come from JMX. "There are X missing blocks." is 
> {{NumberOfMissingBlocks}} and the block names are {{CorruptFiles}}.



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