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From "YihueyChyi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-150) group by count(1) will get error
Date Wed, 10 Dec 2008 09:18:44 GMT

     [ https://issues.apache.org/jira/browse/HIVE-150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

YihueyChyi updated HIVE-150:
----------------------------


I download from
http://mirror.facebook.com/facebook/hive/hadoop-0.17/dist.tar.gz

> group by count(1) will get error
> --------------------------------
>
>                 Key: HIVE-150
>                 URL: https://issues.apache.org/jira/browse/HIVE-150
>             Project: Hadoop Hive
>          Issue Type: Bug
>         Environment: HADOOP 0.17.2.1 HIVE 0.17
>            Reporter: YihueyChyi
>
> HIVEQL:  select l.http_user_agent,count(1) from log_resume_all l  group by l.http_user_agent
> Maybe I'll get error in the second stage:
>     FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.ExecDriver
> The second stage :
> map error 
> java.lang.NullPointerException
> 	at org.apache.hadoop.hive.ql.exec.ReduceSinkOperator.process(ReduceSinkOperator.java:151)
> 	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:250)
> 	at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:174)
> 	at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:71)
> 	at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:219)
> 	at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2122)
> syslog logs
> 2008-12-10 15:41:15,209 DEBUG org.apache.hadoop.mapred.TaskTracker: Child starting
> 2008-12-10 15:41:15,717 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: Initializing JVM
Metrics with processName=MAP, sessionId=
> 2008-12-10 15:41:15,805 INFO org.apache.hadoop.mapred.MapTask: numReduceTasks: 64
> 2008-12-10 15:41:16,252 INFO org.apache.hadoop.util.NativeCodeLoader: Loaded the native-hadoop
library
> 2008-12-10 15:41:16,253 INFO org.apache.hadoop.io.compress.zlib.ZlibFactory: Successfully
loaded & initialized native-zlib library
> 2008-12-10 15:41:16,424 INFO org.apache.hadoop.hive.ql.exec.MapOperator: Initializing
Self
> 2008-12-10 15:41:16,428 INFO org.apache.hadoop.hive.ql.exec.MapOperator: Adding alias
/tmp/hive-root/462573742/46102483.10002 to work list for file /tmp/hive-root/462573742/46102483.10002/0015_r_000029_0
> 2008-12-10 15:41:16,438 INFO org.apache.hadoop.hive.ql.exec.MapOperator: Got partitions:
null
> 2008-12-10 15:41:16,438 INFO org.apache.hadoop.hive.ql.exec.ReduceSinkOperator: Initializing
Self
> 2008-12-10 15:41:16,443 INFO org.apache.hadoop.hive.ql.exec.ReduceSinkOperator: Using
tag = -1
> 2008-12-10 15:41:16,460 INFO org.apache.hadoop.hive.serde2.thrift.TBinarySortableProtocol:
Sort order is ""
> 2008-12-10 15:41:16,460 INFO org.apache.hadoop.hive.serde2.thrift.TBinarySortableProtocol:
Sort order is ""
> 2008-12-10 15:41:16,489 INFO org.apache.hadoop.hive.ql.exec.MapOperator: DESERIALIZE_ERRORS:0
> 2008-12-10 15:41:16,495 WARN org.apache.hadoop.mapred.TaskTracker: Error running child
> java.lang.NullPointerException
> 	at org.apache.hadoop.hive.ql.exec.ReduceSinkOperator.process(ReduceSinkOperator.java:151)
> 	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:250)
> 	at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:174)
> 	at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:71)
> 	at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:219)
> 	at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2122)

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