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https://issues.apache.org/jira/browse/HDFS-14651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lisheng Sun updated HDFS-14651:
-------------------------------
Description:
DeadNodeDetector checks dead node periodically.
DeadNodeDetector periodically detect the Node in DeadNodeDetector#deadnode, If
the access is successful, the Node will be moved from
DeadNodeDetector#deadnode. Continuous detection of the dead node is necessary.
The DataNode need rejoin the cluster due to a service restart/machine repair.
The DataNode may be permanently excluded if there is no added probe mechanism.
was:DeadNodeDetector checks dead node periodically.
> DeadNodeDetector checks dead node periodically
> ----------------------------------------------
>
> Key: HDFS-14651
> URL: https://issues.apache.org/jira/browse/HDFS-14651
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Lisheng Sun
> Assignee: Lisheng Sun
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: HDFS-14651.001.patch, HDFS-14651.002.patch,
> HDFS-14651.003.patch, HDFS-14651.004.patch, HDFS-14651.005.patch,
> HDFS-14651.006.patch, HDFS-14651.007.patch, HDFS-14651.008.patch
>
>
> DeadNodeDetector checks dead node periodically.
> DeadNodeDetector periodically detect the Node in DeadNodeDetector#deadnode,
> If the access is successful, the Node will be moved from
> DeadNodeDetector#deadnode. Continuous detection of the dead node is
> necessary. The DataNode need rejoin the cluster due to a service
> restart/machine repair. The DataNode may be permanently excluded if there is
> no added probe mechanism.
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