Hi, I am able to install hive, and create a table (external) and map it to my Hbasetable.
I am able to do hive>select * from maptable; it works. But when I give hive>select * from maptable where name='testuser" I am getting the following error. om hive> select * from maptable where name ='testuser'; Total MapReduce jobs = 1 Launching Job 1 out of 1 Number of reduce tasks is set to 0 since there's no reduce operator Starting Job = job_201112141942_0002, Tracking URL = http://hostxxx-namenode.com:50030/jobdetails.jsp?jobid=job_201112141942_0002 Kill Command = /usr/lib/hadoop/bin/hadoop job -Dmapred.job.tracker= hostxxx-namenode.com :8021 -kill job_201112141942_0002 2012-01-01 18:17:12,895 Stage-1 map = 0%, reduce = 0% 2012-01-01 18:17:30,983 Stage-1 map = 100%, reduce = 100% Ended Job = job_201112141942_0002 with errors FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.MapRedTask Error in the jobtracker: 2012-01-01 18:34:26,847 INFO org.apache.hadoop.mapred.JobInProgress: Choosing data-local task task_201112141942_0004_m_000000 2012-01-01 18:34:28,062 INFO org.apache.hadoop.mapred.TaskInProgress: Error from attempt_201112141942_0004_m_000000_0: java.io.IOException: Cannot create an instance of InputSplit class = org.apache.hadoop.hive.hbase.HBaseSplit:org.apache.hadoop.hive.hbase.HBaseSplit at org.apache.hadoop.hive.ql.io.HiveInputFormat$HiveInputSplit.readFields(HiveInputFormat.java:145) at org.apache.hadoop.io.serializer.WritableSerialization$WritableDeserializer.deserialize(WritableSerialization.java:67) at org.apache.hadoop.io.serializer.WritableSerialization$WritableDeserializer.deserialize(WritableSerialization.java:40) at org.apache.hadoop.mapred.MapTask.getSplitDetails(MapTask.java:348) at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:364) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:324) at org.apache.hadoop.mapred.Child$4.run(Child.java:268) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1115) at org.apache.hadoop.mapred.Child.main(Child.java:262) 2012-01-01 18:34:31,092 INFO org.apache.hadoop.mapred.JobInProgress: Choosing a failed task task_201112141942_0004_m_000000 can you please let me know what is the issue and why I am not able to use the select command? but select *from tablename work....
