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Review request for hive, Gopal V and Thejas Nair. Bugs: HIVE-19154 https://issues.apache.org/jira/browse/HIVE-19154 Repository: hive-git Description ------- - Create NotificationEventPoll to periodically query for notification events, and pass the events to any registered EventConsumers. - Create InvalidationEventConsumer in QueryResultsCache to use the events to invalidate any results cache entries using the updated table. Diffs ----- common/src/java/org/apache/hadoop/hive/conf/HiveConf.java e540d023bd itests/src/test/resources/testconfiguration.properties 48d62a8bf9 itests/util/src/main/java/org/apache/hadoop/hive/ql/QTestUtil.java 3cdad284ef ql/src/java/org/apache/hadoop/hive/ql/cache/results/QueryResultsCache.java b1a3646624 ql/src/java/org/apache/hadoop/hive/ql/metadata/events/EventConsumer.java PRE-CREATION ql/src/java/org/apache/hadoop/hive/ql/metadata/events/NotificationEventPoll.java PRE-CREATION ql/src/test/queries/clientpositive/results_cache_invalidation2.q PRE-CREATION ql/src/test/results/clientpositive/llap/results_cache_invalidation2.q.out PRE-CREATION ql/src/test/results/clientpositive/results_cache_invalidation2.q.out PRE-CREATION service/src/java/org/apache/hive/service/server/HiveServer2.java 47f84b5e73 Diff: https://reviews.apache.org/r/66533/diff/1/ Testing ------- Thanks, Jason Dere