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From "yanghuafeng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-14613) BlockManagerSafeMode should avoid to check datanode thresholds with default zero value.
Date Thu, 27 Jun 2019 11:33:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-14613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16874019#comment-16874019
] 

yanghuafeng commented on HDFS-14613:
------------------------------------

Sorry, I have missed HDFS-14171 before creating this issue. This issue should be closed. [~hexiaoqiao]

>  BlockManagerSafeMode should avoid to check datanode thresholds with default zero value.
> ----------------------------------------------------------------------------------------
>
>                 Key: HDFS-14613
>                 URL: https://issues.apache.org/jira/browse/HDFS-14613
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 2.9.0, 3.0.0, 3.1.0, 3.2.0
>            Reporter: yanghuafeng
>            Assignee: yanghuafeng
>            Priority: Major
>
> In Safemode, when  namenoe process block reports, the BlockManagerSafeMode check the
live  datanode thresholds.In our cluster, this threshold use default zero value.  According
to previous version, it is not essential to get num of live datanodes. And it is very time-consuming
when processing every reported block.



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