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https://issues.apache.org/jira/browse/HDFS-9739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15128965#comment-15128965
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Kihwal Lee commented on HDFS-9739:
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If the patch works, {{TestDatanodeStartupFixesLegacyStorageIDs}} should fail
until HDFS-9730 is fixed. This wasn't failing in trunk and brach-2 despite the
bug because of the broken {{isValidStorageId()}}.
> DatanodeStorage.isValidStorageId() is broken
> --------------------------------------------
>
> Key: HDFS-9739
> URL: https://issues.apache.org/jira/browse/HDFS-9739
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Kihwal Lee
> Assignee: Mingliang Liu
> Priority: Critical
> Attachments: HDFS-9739.000.patch
>
>
> After HDFS-8979, the check is returning true for the old storage ID format.
> So storage IDs in the old format won't be updated during datanode upgrade.
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