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https://issues.apache.org/jira/browse/HDFS-14613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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yanghuafeng resolved HDFS-14613.
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Resolution: Duplicate
> 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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