Larry McCay created KNOX-1297:
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Summary: 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
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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