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From "Todd Lipcon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2979) HA: Balancer should use logical uri for creating failover proxy with HA enabled.
Date Thu, 01 Mar 2012 08:42:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13219918#comment-13219918
] 

Todd Lipcon commented on HDFS-2979:
-----------------------------------

Small nits:
- please rename {{getNameNodeInfo}} to {{getNameNodeInfos}} or {{getNameNodeInfoArray}} or
something?
- in {{setFederatedConfiguration}} add assert that info.nameserviceId is not null

                
> HA: Balancer should use logical uri for creating failover proxy with HA enabled.
> --------------------------------------------------------------------------------
>
>                 Key: HDFS-2979
>                 URL: https://issues.apache.org/jira/browse/HDFS-2979
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer, hdfs client
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Uma Maheswara Rao G
>            Assignee: Aaron T. Myers
>             Fix For: HA branch (HDFS-1623)
>
>         Attachments: HDFS-2979-HDFS-1623.patch, HDFS-2979-HDFS-1623.patch, HDFS-2979-HDFS-1623.patch,
HDFS-2979-HDFS-1623.patch, HDFS-2979.patch
>
>
> Presently Balancer uses real URI for creating the failover proxy.
> Since the failover proxy checks for uri consistency, we should pass logical uri for creating
failover proxy instead of instead of real URI. Presently will work only with default port.
> java.io.IOException: Port 49832 specified in URI hdfs://127.0.0.1:49832 but host '127.0.0.1'
is a logical (HA) namenode and does not use port information.
> 	at org.apache.hadoop.hdfs.HAUtil.getFailoverProxyProviderClass(HAUtil.java:224)
> 	at org.apache.hadoop.hdfs.HAUtil.createFailoverProxy(HAUtil.java:247)
> 	at org.apache.hadoop.hdfs.server.balancer.NameNodeConnector.<init>(NameNodeConnector.java:80)
> 	at org.apache.hadoop.hdfs.server.balancer.Balancer.run(Balancer.java:1401) 

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