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From "Milan Desai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7647) DatanodeManager.sortLocatedBlocks() sorts DatanodeInfos but not StorageIDs
Date Wed, 21 Jan 2015 23:41:35 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Milan Desai updated HDFS-7647:
------------------------------
    Description: 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.  (was:
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.)

> 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 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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