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Posted to dev@oozie.apache.org by "Robert Kanter (JIRA)" <ji...@apache.org> on 2013/08/06 23:04:47 UTC
[jira] [Updated] (OOZIE-615) Support high availability for the
Oozie service
[ https://issues.apache.org/jira/browse/OOZIE-615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Kanter updated OOZIE-615:
--------------------------------
Attachment: OOZIE-615.patch
New patch addresses Alejandro's comments from RB. Mostly minor refactoring, clarifying things, etc. Biggest change was to how the logs are collated from other servers; I reworked that logic to not load all of the logs into memory anymore (ZKXLogStreamingService).
> Support high availability for the Oozie service
> -----------------------------------------------
>
> Key: OOZIE-615
> URL: https://issues.apache.org/jira/browse/OOZIE-615
> Project: Oozie
> Issue Type: New Feature
> Affects Versions: trunk
> Reporter: Craig Peters
> Assignee: Robert Kanter
> Fix For: trunk
>
> Attachments: OOZIE-615.patch, OOZIE-615.patch, OOZIE-615.patch, OOZIE-615.patch, OOZIE-615.patch, OOZIE-615.patch, OozieHADesign.pdf, Oozie HA Overview.pdf, zookeeper_yahoo_code.zip
>
>
> As Oozie becomes a critical component in the Hadoop ecosystem users needs assured availability of the services provided by Oozie. To support this need Oozie should include a new feature to support high availability. This feature needs to take into consideration that Oozie provides RESTful APIs, Java APIs, and a command line API that should all be insensitive to the availability of any specific server or components. At Yahoo! it is not required that there be session fail-over from the client. It is acceptable for the client to reconnect if a session is lost as long as the state data managed by the Oozie service is not lost.
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