ihuzenko commented on issue #1706: DRILL-7115: Improve Hive schema show tables performance URL: https://github.com/apache/drill/pull/1706#issuecomment-479094218 @vdiravka , I've addressed comments. I totally agree with you that refactoring is better to put into separate commits and I'll use this approach in future. For show tables authorization improvement was created [DRILL-7151](https://issues.apache.org/jira/browse/DRILL-7151) ticket. For caches was changed type of ```tableNamesCache``` to ```LoadingCache<String, Map<String, Schema.TableType>> ```, previously only names were cached here, also all work with Guava caches was unified under ```HiveMetadataCache``` facade. For Drill Hive SASL (Kerberos) connection I didn't introduce changes, related code from ```DrillHiveMetaStoreClientFactory``` was previously in ```DrillHiveMetaStoreClient```.
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