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https://issues.apache.org/jira/browse/HDFS-3731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13434284#comment-13434284
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Suresh Srinivas commented on HDFS-3731:
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Colin, can you please add description about the final approach you are taking
to solve this problem.
> 2.0 release upgrade must handle blocks being written from 1.0
> -------------------------------------------------------------
>
> Key: HDFS-3731
> URL: https://issues.apache.org/jira/browse/HDFS-3731
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 2.0.0-alpha
> Reporter: Suresh Srinivas
> Assignee: Colin Patrick McCabe
> Priority: Blocker
> Attachments: HDFS-3731.002.patch, HDFS-3731.003.patch
>
>
> Release 2.0 upgrades must handle blocks being written to (bbw) files from 1.0
> release. Problem reported by Brahma Reddy.
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