Hi, jov Thanks for your attention.
we use hive like this: hive -e "use abc; insert overwrite ....." Here, abc is a hive schema which already exists in hive metastore. But, from the log we can see, hive ddl switch database is failed. That is to say, it doesn't read the exist schema? 2014-01-23 06:35:49,467 ERROR exec.DDLTask (DDLTask.java:execute(435)) - org.apache.hadoop.hive.ql. metadata.HiveException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient at org.apache.hadoop.hive.ql.metadata.Hive.getDatabase(Hive.java:1143) at org.apache.hadoop.hive.ql.metadata.Hive.databaseExists(Hive.java:1128) at org.apache.hadoop.hive.ql.exec.DDLTask.switchDatabase (DDLTask.java:3479) Best Regards, On Thu, Jan 23, 2014 at 1:27 PM, Jov <am...@amutu.com> wrote: > > 2014/1/23 Jander g <jande...@gmail.com> > >> Caused by: java.sql.BatchUpdateException: Duplicate entry 'default' for >> key 2 > > > what is the HQL you run? it look like hive try to insert 'default' to a > meta table which violate the unique key. > > > Jov > blog: http:amutu.com/blog <http://amutu.com/blog> > -- Thanks, Jander