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https://issues.apache.org/jira/browse/HBASE-14232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francis Liu updated HBASE-14232:
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Attachment: HBASE-14232_hbase-6721.patch
> Backwards compatiblity support for new MasterObserver APIs
> ----------------------------------------------------------
>
> Key: HBASE-14232
> URL: https://issues.apache.org/jira/browse/HBASE-14232
> Project: HBase
> Issue Type: Sub-task
> Reporter: Andrew Purtell
> Labels: hbase-6721
> Attachments: HBASE-14232_hbase-6721.patch
>
>
> The group assignment changes introduce new methods to the MasterObserver
> interface. This is a concern for things like Apache Phoenix. (See their
> IndexMasterObserver, etc.) We can handle this by using compatibility helpers
> that won't attempt to invoke the new APIs on MasterObservers that do not
> implement them.
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