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https://issues.apache.org/jira/browse/HDFS-8846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhe Zhang updated HDFS-8846:
----------------------------
    Attachment: HDFS-8846.02.patch

Updating the patch to fix white space issue and removing unused imports in 
{{TestDFSUpgrade}}.

The reported test failures are unrelated and pass locally.

One thing I'm not sure about is whether I should shrink the binary file by only 
containing 1 (or 2~3) edit log. Right now it has ~200 edit logs.

> Create edit log files with old layout version for upgrade testing
> -----------------------------------------------------------------
>
>                 Key: HDFS-8846
>                 URL: https://issues.apache.org/jira/browse/HDFS-8846
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.7.1
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>         Attachments: HDFS-8846.00.patch, HDFS-8846.01.patch, 
> HDFS-8846.02.patch
>
>
> Per discussion under HDFS-8480, we should create some edit log files with old 
> layout version, to test whether they can be correctly handled in upgrades.



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