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https://issues.apache.org/jira/browse/HDFS-7647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Milan Desai updated HDFS-7647:
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Summary: DatanodeManager.sortLocatedBlocks() sorts DatanodeInfos but not
StorageIDs (was: DatanodeManager.sortLocatedBlocks() sorts DatanodeIDs but not
StorageIDs)
> DatanodeManager.sortLocatedBlocks() sorts DatanodeInfos but not StorageIDs
> --------------------------------------------------------------------------
>
> Key: HDFS-7647
> URL: https://issues.apache.org/jira/browse/HDFS-7647
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.6.0
> Reporter: Milan Desai
> Assignee: Milan Desai
> Attachments: HDFS-7647.patch
>
>
> DatanodeManager.sortLocatedBlocks() sorts the array of DatanodeIDs inside
> each LocatedBlock, but does not touch the array of StorageIDs and
> StorageTypes. As a result, the DatanodeIDs and StorageIDs/StorageTypes are
> mismatched. The method is called by FSNamesystem.getBlockLocations(), so the
> client will not know which StorageID/Type corresponds to which DatanodeID.
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