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Date: Wed, 14 Mar 2012 21:32:46 +0000 (UTC)
From: "Todd Lipcon (Commented) (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HDFS-1623) High Availability Framework for HDFS
 NN
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    [ https://issues.apache.org/jira/browse/HDFS-1623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229647#comment-13229647 ] 

Todd Lipcon commented on HDFS-1623:
-----------------------------------

bq. From experience, I suspect getting the code for IP based automated failover working in a multi-SBN approach to where the community is ready to see it as a stable codebase/release will probably take some more investment. 

yep, I didn't mean to indicate that the whole project is trivial. Just that the majority of issues we had to solve for the current failover implementation also apply to the IP-failover implementation. The remaining work to do IP-failover is much smaller than the amount already behind us.

                
> 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
>             Fix For: 0.24.0, 0.23.3
>
>         Attachments: HA-tests.pdf, HDFS-1623.rel23.patch, HDFS-1623.trunk.patch, HDFS-High-Availability.pdf, NameNode HA_v2.pdf, NameNode HA_v2_1.pdf, Namenode HA Framework.pdf, dfsio-results.tsv, ha-testplan.pdf, ha-testplan.tex
>
>


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