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From "Konstantin Shvachko (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1623) High Availability Framework for HDFS NN
Date Wed, 15 Feb 2012 08:32:09 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13208269#comment-13208269

Konstantin Shvachko commented on HDFS-1623:

Both test plans look good and complimentary. Very glad that benchmarking is a part of it.
Will be glad to advise on DFSIO, let me know the cluster size.
Pretty good unit test coverage. Liked the idea of testing failover under mixed load of SLive,
Terasort, etc. Good plan for testing HBase survival after NN failover.
One suggestion: we should test failover during upgrade. We don't want anybody doing it, but
somebody will anyway. I see section on testing upgrade in Hari's document, could you please
add failover in the middle.
> High Availability Framework for HDFS NN
> ---------------------------------------
>                 Key: HDFS-1623
>                 URL: https://issues.apache.org/jira/browse/HDFS-1623
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: Sanjay Radia
>            Assignee: Sanjay Radia
>         Attachments: HA-tests.pdf, HDFS-High-Availability.pdf, NameNode HA_v2.pdf, NameNode
HA_v2_1.pdf, Namenode HA Framework.pdf, ha-testplan.pdf, ha-testplan.tex

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