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https://issues.apache.org/jira/browse/HDFS-11086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal resolved HDFS-11086.
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Resolution: Done
Resolving as all the sub-tasks are fixed.
> DataNode disk check improvements
> --------------------------------
>
> Key: HDFS-11086
> URL: https://issues.apache.org/jira/browse/HDFS-11086
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
>
> This Jira tracks a few improvements to DataNode’s usage of DiskChecker to
> address the following problems:
> # Checks are serialized so a single slow disk can indefinitely delay checking
> the rest.
> # Related to 1, no detection of stalled checks.
> # Lack of granularity. A single IO error initiates checking all disks.
> # Inconsistent activation. Some DataNode IO failures trigger disk checks but
> not all.
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