This is the exception I'm seeing. 2020-05-15 15:35:36,098 FATAL [RS_OPEN_PRIORITY_REGION-think:16201-1] regionserver.HRegionServer: ABORTING region server think,16201,1589581955446: The coprocessor org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver threw java.lang.NoClassDefFoundError: org/apache/phoenix/compat/hbase/CompatRpcControllerFactory
And indeed CompatRpcControllerFactory is missing from phoenix-server.jar. Is anybody else seeing this or am I missing something? -- Lars
