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From "Aaron T. Myers (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2692) HA: Bugs related to failover from/into safe-mode
Date Thu, 29 Dec 2011 20:30:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13177368#comment-13177368
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Aaron T. Myers commented on HDFS-2692:
--------------------------------------

bq. I'd like to move a bunch of these methods into a new HATestUtil class... can I do that
in a follow-up JIRA?

Definitely. This also came up in Eli's review of HDFS-2709. Please file?

+1, the latest patch looks good to me.
                
> HA: Bugs related to failover from/into safe-mode
> ------------------------------------------------
>
>                 Key: HDFS-2692
>                 URL: https://issues.apache.org/jira/browse/HDFS-2692
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, name-node
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Critical
>         Attachments: hdfs-2692.txt, hdfs-2692.txt, hdfs-2692.txt
>
>
> In testing I saw an AssertionError come up several times when I was trying to do failover
between two NNs where one or the other was in safe-mode. Need to write some unit tests to
try to trigger this -- hunch is it has something to do with the treatment of "safe block count"
while tailing edits in safemode.

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