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https://issues.apache.org/jira/browse/HDFS-7604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth updated HDFS-7604:
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Attachment: HDFS-7604.004.patch
Patch v004 adds another test:
{{TestDataNodeVolumeFailureReporting#testDataNodeReconfigureWithVolumeFailures}}.
This covers use of the DataNode live reconfiguration feature with the
presence of failed volumes. For example, if reconfiguration removes a
previously failed data directory, then we expect to stop reporting that
location as a failed volume. To get this working completely, there are also
some additional changes in {{FsDatasetImpl}} and {{FsVolumeList}}.
I also cleaned up javac and javadoc warnings. The Findbugs warning is
unrelated.
> Track and display failed DataNode storage locations in NameNode.
> ----------------------------------------------------------------
>
> Key: HDFS-7604
> URL: https://issues.apache.org/jira/browse/HDFS-7604
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode, namenode
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Attachments: HDFS-7604-screenshot-1.png, HDFS-7604-screenshot-2.png,
> HDFS-7604-screenshot-3.png, HDFS-7604-screenshot-4.png,
> HDFS-7604-screenshot-5.png, HDFS-7604-screenshot-6.png,
> HDFS-7604-screenshot-7.png, HDFS-7604.001.patch, HDFS-7604.002.patch,
> HDFS-7604.004.patch, HDFS-7604.prototype.patch
>
>
> During heartbeats, the DataNode can report a list of its storage locations
> that have been taken out of service due to failure (such as due to a bad disk
> or a permissions problem). The NameNode can track these failed storage
> locations and then report them in JMX and the NameNode web UI.
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