set hive.test.authz.sstd.hs2.mode=true; set hive.security.authorization.enabled=true; set hive.security.authorization.manager=org.apache.hadoop.hive.ql.security.authorization.plugin.sqlstd.SQLStdHiveAuthorizerFactory; -- run a sql query to initialize authorization, then try setting a non-existent config param use default; set hive.exec.reduce.max=1;