Lei (Eddy) Xu created HDFS-7419:
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Summary: Improve error messages for DataNode hot swap drive feature
Key: HDFS-7419
URL: https://issues.apache.org/jira/browse/HDFS-7419
Project: Hadoop HDFS
Issue Type: Improvement
Components: datanode
Affects Versions: 2.5.1
Reporter: Lei (Eddy) Xu
Assignee: Lei (Eddy) Xu
When DataNode fails to add a volume, it adds one failure message to
{{errorMessageBuilder}} in {{DataNode#refreshVolumes}}. However, the detailed
error messages are not logged in DataNode's log and they are emitted from
clients.
This JIRA makes {{DataNode}} reports detailed failure in its log.
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