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https://issues.apache.org/jira/browse/HDFS-1896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13061014#comment-13061014
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Todd Lipcon commented on HDFS-1896:
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I just manually tested HDFS-1969's new functionality and it seems to be working:
- formatted NN using 0.20
- ran NN from 1073 branch - it complained about wrong layout
- ran 1073 NN with -upgrade flag, it started with upgrade
- ran 1073 NN with -rollback flag, it correctly complained
- ran 0.20 NN with -rollback flag, it rolled back to old namespace
Once all of the currently outstanding patches are applied, the upgrade tests
also seem to be passing, so I think we're OK on that one.
I agree there are lots of unused imports. I'll do a pass to clean them up right
before we merge.
> Additional QA tasks for Edit Log branch
> ---------------------------------------
>
> Key: HDFS-1896
> URL: https://issues.apache.org/jira/browse/HDFS-1896
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: Edit log branch (HDFS-1073)
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: Edit log branch (HDFS-1073)
>
>
> As we close out tasks in the HDFS-1073 branch, there are a few places where
> I've noticed that we lack some test coverage. Creating this ticket just as a
> place to jot down some notes on things that we ought to make sure are tested,
> preferably by automated (unit) tests.
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