Hi, all I setup Eclipse for Hive development, then I start hive via click "Run -> Java Application". I typed "show tables" to check if my env could work. But I got the errors like:
Logging initialized using configuration in jar:file:/home/libing/hadoop/hadoop-0.20.2/hive/lib/hive-common-0.8.0-SNAPSHOT.jar!/hive-log4j.properties Hive history file=/tmp/libing/hive_job_log_libing_201108282234_2097811740.txt hive> show tables; show tables; FAILED: Error in metadata: org.datanucleus.jdo.exceptions.ClassNotPersistenceCapableException: The class "org.apache.hadoop.hive.metastore.model.MDatabase" is not persistable. This means that it either hasnt been enhanced, or that the enhanced version of the file is not in the CLASSPATH (or is hidden by an unenhanced version), or the Meta-Data/annotations for the class are not found. NestedThrowables: org.datanucleus.exceptions.ClassNotPersistableException: The class "org.apache.hadoop.hive.metastore.model.MDatabase" is not persistable. This means that it either hasnt been enhanced, or that the enhanced version of the file is not in the CLASSPATH (or is hidden by an unenhanced version), or the Meta-Data/annotations for the class are not found. FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask hive> I have included all the libraries in the CLASSPATH, and can't find the reason of that problem. Do you have some ideas on it? Thanks a lot! Bing
