Hello Xinyang, Can you attach the query plan (the output of "EXPLAIN")? I think a bad plan caused the error.
Also, can you try hive trunk? Looks like it is a bug fixed after the release of 0.11. Thanks, Yin On Fri, Oct 11, 2013 at 9:21 AM, xinyan Yang <moon.yan...@gmail.com> wrote: > Development environment，hive 0.11、hadoop 1.0.3 > > > 2013/10/11 xinyan Yang <moon.yan...@gmail.com> > >> Hi, >> when i run this sql,it fails,can anyone give me a advise >> >> -------------------------------------------------------------------------------------------------------------------------------- >> select e.udid as udid,e.app_id as app_id >> from acorn_3g.ClientChannelDefine cc >> join ( >> select udid,app_id,from_id >> from ( >> select u.device_id as udid,u.app_id as app_id,g.device_id as >> 3gdid,u.from_id as from_id from acorn_3g.user_device_info u >> left outer join (select device_id from acorn_3g.3g_device_id where >> log_date<'2013-09-15') g >> on u.device_id=g.device_id where u.log_date='2013-09-15' and >> u.from_id<>0 and u.type=1) f1 >> where 3gdid is null ) e >> on(e.from_id=cc.from_id) >> >> -------------------------------------------------------------------------------------------------------------------------------- >> >> error info: >> Task with the most failures(4): >> ----- >> Task ID: >> task_201305281414_236693_m_000001 >> >> URL: >> >> http://YZSJHL18-22.opi.com:50030/taskdetails.jsp?jobid=job_201305281414_236693&tipid=task_201305281414_236693_m_000001<http://yzsjhl18-22.opi.com:50030/taskdetails.jsp?jobid=job_201305281414_236693&tipid=task_201305281414_236693_m_000001> >> ----- >> Diagnostic Messages for this Task: >> java.lang.RuntimeException: >> org.apache.hadoop.hive.ql.metadata.HiveException: >> java.lang.NullPointerException >> at >> org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:162) >> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50) >> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:436) >> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:372) >> at org.apache.hadoop.mapred.Child$4.run(Child.java:255) >> at java.security.AccessController.doPrivileged(Native Method) >> at javax.security.auth.Subject.doAs(Subject.java:396) >> at >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121) >> at org.apache.hadoop.mapred.Child.main(Child.java:249) >> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: >> java.lang.NullPointerException >> at >> org.apache.hadoop.hive.ql.exec.MapJoinOperator.loadHashTable(MapJoinOperator.java:198) >> at >> org.apache.hadoop.hive.ql.exec.MapJoinOperator.cleanUpInputFileChangedOp(MapJoinOperator.java:212) >> at >> org.apache.hadoop.hive.ql.exec.Operator.cleanUpInputFileChanged(Operator.java:1377) >> at >> org.apache.hadoop.hive.ql.exec.Operator.cleanUpInputFileChanged(Operator.java:1381) >> at >> org.apache.hadoop.hive.ql.exec.Operator.cleanUpInputFileChanged(Operator.java:1381) >> at >> org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:611) >> at >> org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:144) >> ... 8 more >> Caused by: java.lang.NullPointerException >> at >> org.apache.hadoop.hive.ql.exec.MapJoinOperator.loadHashTable(MapJoinOperator.java:186) >> ... 14 more >> >> >> FAILED: Execution Error, return code 2 from >> org.apache.hadoop.hive.ql.exec.MapRedTask >> MapReduce Jobs Launched: >> Job 0: Map: 343 Reduce: 2 Cumulative CPU: 3478.61 sec HDFS Read: >> 1862106687 HDFS Write: 3838425 SUCCESS >> Job 1: Map: 2 HDFS Read: 0 HDFS Write: 0 FAIL >> >> >
