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From "Edward J. Yoon" <edwardy...@apache.org>
Subject Re: java.lang.ArrayIndexOutOfBoundsException
Date Mon, 01 Dec 2008 01:17:43 GMT
Samuel, can you guess why it only appears on multi-node? :)

On Sun, Nov 30, 2008 at 12:20 PM, Edward J. Yoon <edwardyoon@apache.org> wrote:
> I filed this issue - HAMA-116
>
> Seems like bug related with BlockingMapRed.
>
> On Sun, Nov 30, 2008 at 12:02 PM, Edward J. Yoon <edwardyoon@apache.org> wrote:
>> In large scale, Hama may able to beat the scalapack or other math
>> libraries :) BTW, current block multiplication seems have a lot of
>> bug.
>>
>> ----
>> 08/11/30 11:52:15 INFO mapred.JobClient:  map 95% reduce 0%
>> 08/11/30 11:52:17 INFO mapred.JobClient:  map 96% reduce 0%
>> 08/11/30 11:52:19 INFO mapred.JobClient:  map 98% reduce 0%
>> 08/11/30 11:52:20 INFO mapred.JobClient:  map 100% reduce 0%
>> 08/11/30 11:52:39 INFO mapred.JobClient:  map 100% reduce 1%
>> 08/11/30 11:52:46 INFO mapred.JobClient:  map 100% reduce 0%
>> 08/11/30 11:52:46 INFO mapred.JobClient: Task Id : attempt_200811271544_0006_r_0
>> 00000_0, Status : FAILED
>> java.lang.ArrayIndexOutOfBoundsException: 10
>>        at org.apache.hama.SubMatrix.set(SubMatrix.java:61)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:146)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:127)
>>        at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:318)
>>        at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207
>> )
>>
>> 08/11/30 11:52:48 INFO mapred.JobClient: Task Id : attempt_200811271544_0006_r_0
>> 00002_0, Status : FAILED
>> java.lang.ArrayIndexOutOfBoundsException: 10
>>        at org.apache.hama.SubMatrix.set(SubMatrix.java:61)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:146)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:127)
>>        at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:318)
>>        at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207
>> )
>>
>> 08/11/30 11:52:50 INFO mapred.JobClient: Task Id : attempt_200811271544_0006_r_0
>> 00001_0, Status : FAILED
>> java.lang.ArrayIndexOutOfBoundsException: 10
>>        at org.apache.hama.SubMatrix.set(SubMatrix.java:61)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:146)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:127)
>>        at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:318)
>>        at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207
>> )
>>
>> 08/11/30 11:54:02 INFO mapred.JobClient:  map 100% reduce 1%
>> 08/11/30 11:54:22 INFO mapred.JobClient:  map 100% reduce 0%
>> 08/11/30 11:54:22 INFO mapred.JobClient: Task Id : attempt_200811271544_0006_r_0
>> 00003_0, Status : FAILED
>> java.lang.ArrayIndexOutOfBoundsException: 10
>>        at org.apache.hama.SubMatrix.set(SubMatrix.java:61)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:146)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:127)
>>        at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:318)
>>        at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207
>> )
>>
>> 08/11/30 11:54:42 INFO mapred.JobClient:  map 100% reduce 1%
>> 08/11/30 11:54:51 INFO mapred.JobClient:  map 100% reduce 0%
>> 08/11/30 11:54:51 INFO mapred.JobClient: Task Id : attempt_200811271544_0006_r_0
>> 00000_1, Status : FAILED
>> java.lang.ArrayIndexOutOfBoundsException: 10
>>        at org.apache.hama.SubMatrix.set(SubMatrix.java:61)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:146)
>>        at org.apache.hama.mapred.BlockingMapRed$BlockingReducer.reduce(Blocking
>> MapRed.java:127)
>>        at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:318)
>>        at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207
>> )
>>
>> --
>> Best Regards, Edward J. Yoon @ NHN, corp.
>> edwardyoon@apache.org
>> http://blog.udanax.org
>>
>
>
>
> --
> Best Regards, Edward J. Yoon @ NHN, corp.
> edwardyoon@apache.org
> http://blog.udanax.org
>



-- 
Best Regards, Edward J. Yoon @ NHN, corp.
edwardyoon@apache.org
http://blog.udanax.org

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