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https://issues.apache.org/jira/browse/KNOX-1297?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Larry McCay resolved KNOX-1297.
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Resolution: Fixed
> HDFSUI Requires its own HA Dispatch Provider
> --------------------------------------------
>
> Key: KNOX-1297
> URL: https://issues.apache.org/jira/browse/KNOX-1297
> Project: Apache Knox
> Issue Type: Bug
> Components: Server
> Reporter: Larry McCay
> Assignee: Larry McCay
> Priority: Major
> Fix For: 1.1.0
>
>
> HDFSUI has been trying to reuse the WEBHDFS HA dispatch class for HA support.
> The problem is that the WebHdfsHaDispatch is hardcoded for the WEBHDFS
> resource role. Therefore, the marking of the failed URL is always done to the
> set of URLs for the WEBHDFS service.
> Thus, at URL rewrite time for dispatching to the backend service the HDFSUI
> URL is always rewritten to the first URL.
> This patch will extract a base class from the WebHdfsHaDispatch and provide
> an abstract getResourceRole() method for derived classes to implement. This
> provides very thin extensions of the abstract base and decent reuse for
> HDFSUI and WebHDFS API.
>
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