[ 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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Attachment: HDFS-7647-7.patch
> 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-7647-2.patch, HDFS-7647-3.patch, HDFS-7647-4.patch, HDFS-7647-5.patch,
HDFS-7647-6.patch, HDFS-7647-7.patch, HDFS-7647.patch
>
>
> DatanodeManager.sortLocatedBlocks() sorts the array of DatanodeInfos inside each LocatedBlock,
but does not touch the array of StorageIDs and StorageTypes. As a result, the DatanodeInfos
and StorageIDs/StorageTypes are mismatched. The method is called by FSNamesystem.getBlockLocations(),
so the client will not know which StorageID/Type corresponds to which DatanodeInfo.
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