hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Carl Steinbach (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HIVE-2778) Fail on table sampling
Date Fri, 16 Mar 2012 01:52:34 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2778?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Carl Steinbach resolved HIVE-2778.
----------------------------------

      Resolution: Fixed
    Hadoop Flags: Reviewed

Committed to trunk. Thanks Navis!
                
> Fail on table sampling 
> -----------------------
>
>                 Key: HIVE-2778
>                 URL: https://issues.apache.org/jira/browse/HIVE-2778
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.9.0
>         Environment: Reproduced only on hadoop-0.20.2-CDH3u1, work fine on hadoop-0.20.2
>            Reporter: Navis
>            Assignee: Navis
>             Fix For: 0.9.0
>
>         Attachments: HIVE-2778.D1593.1.patch, HIVE-2778.D1593.2.patch, HIVE-2778.D1593.2.patch
>
>
> Trying table sampling on any non-empty table throws NPE. This does not occur by test
on mini-MR.
> {noformat}
> select count(*) from emp tablesample (0.1 percent);     
> Total MapReduce jobs = 1
> Launching Job 1 out of 1
> Number of reduce tasks determined at compile time: 1
> In order to change the average load for a reducer (in bytes):
>   set hive.exec.reducers.bytes.per.reducer=<number>
> In order to limit the maximum number of reducers:
>   set hive.exec.reducers.max=<number>
> In order to set a constant number of reducers:
>   set mapred.reduce.tasks=<number>
> java.lang.NullPointerException
> 	at org.apache.hadoop.hive.ql.io.CombineHiveInputFormat.sampleSplits(CombineHiveInputFormat.java:450)
> 	at org.apache.hadoop.hive.ql.io.CombineHiveInputFormat.getSplits(CombineHiveInputFormat.java:403)
> 	at org.apache.hadoop.mapred.JobClient.writeOldSplits(JobClient.java:971)
> 	at org.apache.hadoop.mapred.JobClient.writeSplits(JobClient.java:963)
> 	at org.apache.hadoop.mapred.JobClient.access$500(JobClient.java:170)
> 	at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:880)
> 	at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:833)
> 	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:1127)
> 	at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:833)
> 	at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:807)
> 	at org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:432)
> 	at org.apache.hadoop.hive.ql.exec.MapRedTask.execute(MapRedTask.java:136)
> 	at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:134)
> 	at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:57)
> 	at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1332)
> 	at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1123)
> 	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:931)
> 	at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:255)
> 	at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:212)
> 	at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:403)
> 	at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:671)
> 	at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:554)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.apache.hadoop.util.RunJar.main(RunJar.java:186)
> Job Submission failed with exception 'java.lang.NullPointerException(null)'
> FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.MapRedTask
> {noformat}

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message