Thanks for your report.

I guess it was a problem of vertex parser. We'll improve the Exception
handling. Thanks!

On Thu, Jan 9, 2014 at 4:26 PM, 步青云 <[email protected]> wrote:
> Thank you !I have sovled this problem,though I still don't know what' 
> happened.I just copy some code of that program into PageRank example to 
> modify the PageRank example.And then the problem get resolved.
> Maybe there are some mistakes in the program I had write the first time.
> Thank you again.
>
>
> ------------------ 原始邮件 ------------------
> 发件人: "Edward J. Yoon";<[email protected]>;
> 发送时间: 2014年1月8日(星期三) 晚上7:01
> 收件人: "[email protected]"<[email protected]>;
>
> 主题: Re: Hama:Messages must never be behind the vertex in ID
>
>
>
> Please use the TRUNK.
>
> And, you should provide more information. Please check whether
> vertices are loaded correctly.
>
> On Wed, Jan 8, 2014 at 6:04 PM, 步青云 <[email protected]> wrote:
>> Hello,
>>         I run my own program in Hama.I use the function 
>> sendMessageToNeighbors() to send messages to neighbors of each vertex.But I 
>> get the following errors.
>>
>>
>>        14/01/08 14:49:46 ERROR bsp.LocalBSPRunner: Exception during BSP 
>> execution!
>> java.lang.IllegalArgumentException: Messages must never be behind the vertex 
>> in ID! Current Message ID: 2 vs. 5
>>         at 
>> org.apache.hama.graph.GraphJobRunner.iterate(GraphJobRunner.java:284)
>>         at 
>> org.apache.hama.graph.GraphJobRunner.doSuperstep(GraphJobRunner.java:229)
>>         at org.apache.hama.graph.GraphJobRunner.bsp(GraphJobRunner.java:133)
>>         at 
>> org.apache.hama.bsp.LocalBSPRunner$BSPRunner.run(LocalBSPRunner.java:256)
>>         at 
>> org.apache.hama.bsp.LocalBSPRunner$BSPRunner.call(LocalBSPRunner.java:286)
>>         at 
>> org.apache.hama.bsp.LocalBSPRunner$BSPRunner.call(LocalBSPRunner.java:1)
>>         at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>>         at 
>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>>         at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>>         at 
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>         at 
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>         at java.lang.Thread.run(Thread.java:724)
>>
>>         I'm sure that all edges point to existing vertices.So I'm all adrift 
>> about this error.Could you help me to solve this problem?Thank you a lot.
>>         Best wishes.
>>     Ping Liu
>>            2014-1-8
>
>
>
> --
> Best Regards, Edward J. Yoon
> @eddieyoon
> .



-- 
Best Regards, Edward J. Yoon
@eddieyoon

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