hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4730) Join on more than 2^31 records on single reducer failed (wrong results)
Date Thu, 18 Jul 2013 15:38:49 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13712419#comment-13712419
] 

Hive QA commented on HIVE-4730:
-------------------------------



{color:red}Overall{color}: -1 build exited with an error

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12592716/HIVE-4730.D11283.2.patch

{color:green}SUCCESS:{color} +1 all tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/78/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/78/console

Messages:
Executing org.apache.hive.ptest.execution.CleanupPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Tests failed with: IllegalStateException: Too many bad hosts: 5 bad hosts out of 8 is greater
than threshold of 30%

This message is automatically generated.
                
> Join on more than 2^31 records on single reducer failed (wrong results)
> -----------------------------------------------------------------------
>
>                 Key: HIVE-4730
>                 URL: https://issues.apache.org/jira/browse/HIVE-4730
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.7.1, 0.8.0, 0.8.1, 0.9.0, 0.10.0, 0.11.0
>            Reporter: Gabi Kazav
>            Assignee: Navis
>            Priority: Blocker
>         Attachments: HIVE-4730.D11283.1.patch, HIVE-4730.D11283.2.patch
>
>
> join on more than 2^31 rows leads to wrong results. for example:
> Create table small_table (p1 string) ROW FORMAT DELIMITED    LINES TERMINATED BY  '\n';
> Create table big_table (p1 string) ROW FORMAT DELIMITED    LINES TERMINATED BY  '\n';
> Loading 1 row to small_table (the value 1).
> Loading 2149580800 rows to big_table with the same value (1 on this case).
> create table output as select a.p1 from  big_table a join small_table b on (a.p1=b.p1);
> select count(*) from output ; will return only 1 row...
> the reducer syslog:
> ...
> 2013-06-13 17:20:59,254 INFO ExecReducer: ExecReducer: processing 2147000000 rows: used
memory = 32925960
> 2013-06-13 17:21:00,745 INFO ExecReducer: ExecReducer: processing 2148000000 rows: used
memory = 12815184
> 2013-06-13 17:21:02,205 INFO ExecReducer: ExecReducer: processing 2149000000 rows: used
memory = 26684552   <-- looks like wrong value..
> ...
> 2013-06-13 17:21:04,062 INFO ExecReducer: ExecReducer: processed 2149580801 rows: used
memory = 17715896
> 2013-06-13 17:21:04,062 INFO org.apache.hadoop.hive.ql.exec.JoinOperator: 4 finished.
closing...
> 2013-06-13 17:21:04,062 INFO org.apache.hadoop.hive.ql.exec.JoinOperator: 4 forwarded
1 rows
> 2013-06-13 17:21:05,791 INFO org.apache.hadoop.hive.ql.exec.JoinOperator: SKEWJOINFOLLOWUPJOBS:0
> 2013-06-13 17:21:05,792 INFO org.apache.hadoop.hive.ql.exec.SelectOperator: 5 finished.
closing...
> 2013-06-13 17:21:05,792 INFO org.apache.hadoop.hive.ql.exec.SelectOperator: 5 forwarded
1 rows
> 2013-06-13 17:21:05,792 INFO org.apache.hadoop.hive.ql.exec.FileSinkOperator: 6 finished.
closing...
> 2013-06-13 17:21:05,792 INFO org.apache.hadoop.hive.ql.exec.FileSinkOperator: 6 forwarded
0 rows
> 2013-06-13 17:21:05,946 INFO org.apache.hadoop.hive.ql.exec.FileSinkOperator: TABLE_ID_1_ROWCOUNT:1
> 2013-06-13 17:21:05,946 INFO org.apache.hadoop.hive.ql.exec.SelectOperator: 5 Close done
> 2013-06-13 17:21:05,946 INFO org.apache.hadoop.hive.ql.exec.JoinOperator: 4 Close done

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message