Andrew Purtell created HBASE-14232:
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Summary: 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
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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