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From Suijian Zhou <suijian.z...@gmail.com>
Subject Re: Giraph program stucks.
Date Fri, 07 Mar 2014 15:19:06 GMT
Hi, Claudio,
  I have set the following when ran the program:
export HADOOP_DATANODE_OPTS="-Xmx10g"
and
export HADOOP_HEAPSIZE=30000

in hadoop-env.sh and restarted hadoop.

  Best Regards,
  Suijian



2014-03-06 17:29 GMT-06:00 Claudio Martella <claudio.martella@gmail.com>:

> did you actually increase the heap?
>
>
> On Thu, Mar 6, 2014 at 11:43 PM, Suijian Zhou <suijian.zhou@gmail.com>wrote:
>
>> Hi,
>>   I tried to process only 2 of the input files, i.e, 2GB + 2GB input, the
>> program finished successfully in 6 minutes. But as I have 39 nodes, they
>> should be enough to load  and process the 8*2GB=16GB size graph? Can
>> somebody help to give some hints( Will all the nodes participate in graph
>> loading from HDFS or only master node load the graph?)? Thanks!
>>
>>   Best Regards,
>>   Suijian
>>
>>
>>
>> 2014-03-06 16:24 GMT-06:00 Suijian Zhou <suijian.zhou@gmail.com>:
>>
>> Hi, Experts,
>>>   I'm trying to process a graph by pagerank in giraph, but the program
>>> always stucks there.
>>> There are 8 input files, each one is with size ~2GB and all copied onto
>>> HDFS. I use 39 nodes and each node has 16GB Mem and 8 cores. It keeps
>>> printing the same info(as the following) on the screen after 2 hours, looks
>>> no progress at all. What are the possible reasons? Testing small example
>>> files run without problems. Thanks!
>>>
>>> 14/03/06 16:17:42 INFO job.JobProgressTracker: Data from 39 workers -
>>> Compute superstep 0: 5854829 out of 49200000 vertices computed; 181 out of
>>> 1521 partitions computed
>>> 14/03/06 16:17:47 INFO job.JobProgressTracker: Data from 39 workers -
>>> Compute superstep 0: 5854829 out of 49200000 vertices computed; 181 out of
>>> 1521 partitions computed
>>>
>>>   Best Regards,
>>>   Suijian
>>>
>>>
>>
>
>
> --
>    Claudio Martella
>
>

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