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From "Takanobu Asanuma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10827) When there are unrecoverable ec block groups, Namenode Web UI shows "There are X missing blocks." but doesn't show the block names.
Date Thu, 01 Sep 2016 10:49:20 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10827?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Takanobu Asanuma updated HDFS-10827:
------------------------------------
    Attachment: case_3.png
                case_2.png

> 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
>            Reporter: Takanobu Asanuma
>            Assignee: Takanobu Asanuma
>         Attachments: case_2.png, case_3.png
>
>
> For RS-6-3, when there is one ec block group and
> 1) 0~3 of 9 internal blocks are missing, NN Web UI doesn't show any warns.
> 2) 4~8 of 9 internal blocks are missing, NN Web UI shows "There are 1 missing blocks."
but doesn't show the block names.
> 3) 9 of 9 internal blocks are missing, NN Web UI shows "There are 1 missing blocks."
and also shows the block name.
> 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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