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Oleksiy Sayankin commented on HIVE-21489: ----------------------------------------- The same error happens when Hive is configured for Storage Base Authorization. {code} <property> <name>hive.security.authorization.enabled</name> <value>true</value> </property> <property> <name>hive.security.metastore.authorization.manager</name> <value>org.apache.hadoop.hive.ql.security.authorization.StorageBasedAuthorizationProvider</value> </property> <property> <name>hive.security.authorization.manager</name> <value>org.apache.hadoop.hive.ql.security.authorization.StorageBasedAuthorizationProvider</value> </property> <property> <name>hive.security.metastore.authenticator.manager</name> <value>org.apache.hadoop.hive.ql.security.HadoopDefaultMetastoreAuthenticator</value> </property> <property> <name>hive.metastore.pre.event.listeners</name> <value>org.apache.hadoop.hive.ql.security.authorization.AuthorizationPreEventListener</value> </property> {code} {code} FAILED: ClassCastException org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer cannot be cast to org.apache.hadoop.hive.ql.parse.SemanticAnalyzer {code} So the patch is valid. Please commit to the master. > explain command throw ClassCastException in 2.3.4 > ------------------------------------------------- > > Key: HIVE-21489 > URL: https://issues.apache.org/jira/browse/HIVE-21489 > Project: Hive > Issue Type: Bug > Affects Versions: 2.3.4 > Reporter: Ping Lu > Assignee: Daniel Dai > Priority: Major > Attachments: HIVE-21489.1.patch, HIVE-21489.2.patch > > > I'm trying to run commands like explain select * from src in hive-2.3.4,but > it falls with the ClassCastException: > org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer cannot be cast to > org.apache.hadoop.hive.ql.parse.SemanticAnalyzer > Steps to reproduce: > 1)hive.execution.engine is the default value mr > 2)hive.security.authorization.enabled is set to true, and > hive.security.authorization.manager is set to > org.apache.hadoop.hive.ql.security.authorization.DefaultHiveAuthorizationProvider > 3)start hivecli to run command:explain select * from src > I debug the code and find the issue HIVE-18778 causing the above > ClassCastException.If I set hive.in.test to true,the explain command can be > successfully executed。 > Now,I have one question,due to hive.in.test cann't be modified at runtime.how > to run explain command with using default authorization in hive-2.3.4, -- This message was sent by Atlassian Jira (v8.3.4#803005)