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https://issues.apache.org/jira/browse/HDFS-2919?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE updated HDFS-2919:
-----------------------------------------
Description:
DataNode currently checks the class of DataNode.data to determine whether it
supports DirectoryScanner and/or DataBlockScanner. It is better to have some
method(s) in FSDatasetInterface to reveal this information.
> Add method(s) to FSDatasetInterface for checking if the scanners are supported
> ------------------------------------------------------------------------------
>
> Key: HDFS-2919
> URL: https://issues.apache.org/jira/browse/HDFS-2919
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: data-node
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
>
> DataNode currently checks the class of DataNode.data to determine whether it
> supports DirectoryScanner and/or DataBlockScanner. It is better to have some
> method(s) in FSDatasetInterface to reveal this information.
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