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https://issues.apache.org/jira/browse/HDFS-501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12735677#action_12735677
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Tsz Wo (Nicholas), SZE commented on HDFS-501:
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Got no failure in unit tests this time. (TestBackupNode is really unrelated to
this. The patch does not fix it.)
> Use enum to define the constants in DataTransferProtocol
> --------------------------------------------------------
>
> Key: HDFS-501
> URL: https://issues.apache.org/jira/browse/HDFS-501
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: data-node, hdfs client
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: h501_20090724.patch, h501_20090724b.patch
>
>
> There are quite a few integer (int/byte) constants defined in
> DataTransferProtocol. It is better to replace them by enums.
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