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https://issues.apache.org/jira/browse/HDFS-9730?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated HDFS-9730:
-----------------------------
    Fix Version/s: 2.8.0

> Storage ID update does not happen when there is a layout change
> ---------------------------------------------------------------
>
>                 Key: HDFS-9730
>                 URL: https://issues.apache.org/jira/browse/HDFS-9730
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>            Reporter: Kihwal Lee
>            Assignee: Tsz Wo Nicholas Sze
>             Fix For: 2.8.0, 2.7.3, 3.0.0-alpha1
>
>         Attachments: h9730_20160202.patch, h9730_20160203.patch
>
>
> HDFS-9654 will cause test failures when we increment the datanode layout 
> version next time.
> {noformat}
> TestDatanodeStartupFixesLegacyStorageIDs#testUpgradeFrom22via26FixesStorageIDs
> TestDatanodeStartupFixesLegacyStorageIDs#testUpgradeFrom22FixesStorageIDs
> {noformat}
> This is because createStorageID() is no longer called when it goes through 
> the layout upgrade path. 



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