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Hudson commented on HDFS-7419:
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FAILURE: Integrated in Hadoop-trunk-Commit #6593 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/6593/])
HDFS-7419. Improve error messages for DataNode hot swap drive feature (Lei Xu via Colin P.
Mccabe) (cmccabe: rev f636f9d9439742d7ebaaf21f7e22652403572c61)
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/ReconfigurableBase.java
* hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestReconfiguration.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
> 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
> Attachments: HDFS-7419.000.patch, HDFS-7419.001.patch, HDFS-7419.002.patch, HDFS-7419.003.patch
>
>
> 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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