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From "Keith Turner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-1832) Create utility for rewriting uris
Date Wed, 22 Jan 2014 21:01:21 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-1832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13879176#comment-13879176
] 

Keith Turner commented on ACCUMULO-1832:
----------------------------------------

Interesting.   I am not sure why anyone would run a production system w/o HA.  But I suspect
if single namenode is easier to get up and running, that people will just start w/ that. 
  There is also the use case of transitioning from Hadoop 1/Accumulo 1.6 to Hadoop 2+HA/Accumulo
1.6.  

In my prev comment replace http:// w/ hdfs://

> Create utility for rewriting uris
> ---------------------------------
>
>                 Key: ACCUMULO-1832
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1832
>             Project: Accumulo
>          Issue Type: Sub-task
>          Components: master, tserver
>            Reporter: Keith Turner
>            Assignee: Eric Newton
>            Priority: Blocker
>             Fix For: 1.6.0
>
>
> When a users namenode dies and they restore it on another node Accumulo will not work
since it stores fully qualified uris internally.  Need to a provide a utility to rewrite these
URIs.
> The utility  could rewrite paths in zookeeper, bring root table online and rewrite paths,
bring metadata table online and rewrite, and then allow user tablets to come online.



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