Thanks for the logs.  I see a lot of issues like the following:

2011-12-01 00:04:46,241 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 0 time(s). 2011-12-01 00:04:47,243 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 1 time(s). 2011-12-01 00:04:48,245 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 2 time(s). 2011-12-01 00:04:49,247 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 3 time(s). 2011-12-01 00:04:50,249 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 4 time(s). 2011-12-01 00:04:51,251 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 5 time(s). 2011-12-01 00:04:52,253 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 6 time(s). 2011-12-01 00:04:53,255 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 7 time(s). 2011-12-01 00:04:54,256 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 8 time(s). 2011-12-01 00:04:55,258 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: rainbow-01/192.168.100.1:30004. Already tried 9 time(s). 2011-12-01 00:04:55,261 WARN org.apache.giraph.comm.BasicRPCCommunications: connectAllRPCProxys: Failed on attempt 0 of 5 to connect to (id=0,cur=Worker(hostname=rainbow-01, MRpartition=4, port=30004),prev=null,ckpt_file=null) java.net.ConnectException: Call to rainbow-01/192.168.100.1:30004 failed on connection exception: java.net.ConnectException: Connection refused

Are you sure that your machines can communicate to each other? Are the ports 30000 and up blocked? And you're right, you should have only had 6 tasks. What version of Hadoop is this on?

Avery

On 12/1/11 2:43 PM, Inci Cetindil wrote:
Hi Avery,

I attached the logs for the first attemps. The weird thing is even if I 
specified the number of workers as 5, I had 8 mapper tasks. You can see the 
logs for tasks 6 and 7 failed immediately. Do you have any explanation for this 
behavior? Normally I should have 6 tasks, right?

Thanks,
Inci




On Dec 1, 2011, at 11:00 AM, Avery Ching wrote:

Hi Inci,

I am not sure what's wrong.  I ran the exact same command on a freshly checked 
version of Graph without any trouble.  Here's my output:

hadoop jar target/giraph-0.70-jar-with-dependencies.jar 
org.apache.giraph.benchmark.PageRankBenchmark -e 1 -s 3 -v -V 500 -w 5
Using org.apache.giraph.benchmark.PageRankBenchmark$PageRankVertex
11/12/01 10:58:05 WARN bsp.BspOutputFormat: checkOutputSpecs: 
ImmutableOutputCommiter will not check anything
11/12/01 10:58:05 INFO mapred.JobClient: Running job: job_201112011054_0003
11/12/01 10:58:06 INFO mapred.JobClient:  map 0% reduce 0%
11/12/01 10:58:23 INFO mapred.JobClient:  map 16% reduce 0%
11/12/01 10:58:35 INFO mapred.JobClient:  map 100% reduce 0%
11/12/01 10:58:40 INFO mapred.JobClient: Job complete: job_201112011054_0003
11/12/01 10:58:40 INFO mapred.JobClient: Counters: 31
11/12/01 10:58:40 INFO mapred.JobClient:   Job Counters
11/12/01 10:58:40 INFO mapred.JobClient:     SLOTS_MILLIS_MAPS=77566
11/12/01 10:58:40 INFO mapred.JobClient:     Total time spent by all reduces 
waiting after reserving slots (ms)=0
11/12/01 10:58:40 INFO mapred.JobClient:     Total time spent by all maps 
waiting after reserving slots (ms)=0
11/12/01 10:58:40 INFO mapred.JobClient:     Launched map tasks=6
11/12/01 10:58:40 INFO mapred.JobClient:     SLOTS_MILLIS_REDUCES=0
11/12/01 10:58:40 INFO mapred.JobClient:   Giraph Timers
11/12/01 10:58:40 INFO mapred.JobClient:     Total (milliseconds)=13468
11/12/01 10:58:40 INFO mapred.JobClient:     Superstep 3 (milliseconds)=41
11/12/01 10:58:40 INFO mapred.JobClient:     Setup (milliseconds)=11691
11/12/01 10:58:40 INFO mapred.JobClient:     Shutdown (milliseconds)=73
11/12/01 10:58:40 INFO mapred.JobClient:     Vertex input superstep 
(milliseconds)=369
11/12/01 10:58:40 INFO mapred.JobClient:     Superstep 0 (milliseconds)=674
11/12/01 10:58:40 INFO mapred.JobClient:     Superstep 2 (milliseconds)=519
11/12/01 10:58:40 INFO mapred.JobClient:     Superstep 1 (milliseconds)=96
11/12/01 10:58:40 INFO mapred.JobClient:   Giraph Stats
11/12/01 10:58:40 INFO mapred.JobClient:     Aggregate edges=500
11/12/01 10:58:40 INFO mapred.JobClient:     Superstep=4
11/12/01 10:58:40 INFO mapred.JobClient:     Last checkpointed superstep=2
11/12/01 10:58:40 INFO mapred.JobClient:     Current workers=5
11/12/01 10:58:40 INFO mapred.JobClient:     Current master task partition=0
11/12/01 10:58:40 INFO mapred.JobClient:     Sent messages=0
11/12/01 10:58:40 INFO mapred.JobClient:     Aggregate finished vertices=500
11/12/01 10:58:40 INFO mapred.JobClient:     Aggregate vertices=500
11/12/01 10:58:40 INFO mapred.JobClient:   File Output Format Counters
11/12/01 10:58:40 INFO mapred.JobClient:     Bytes Written=0
11/12/01 10:58:40 INFO mapred.JobClient:   FileSystemCounters
11/12/01 10:58:40 INFO mapred.JobClient:     FILE_BYTES_READ=590
11/12/01 10:58:40 INFO mapred.JobClient:     HDFS_BYTES_READ=264
11/12/01 10:58:40 INFO mapred.JobClient:     FILE_BYTES_WRITTEN=129240
11/12/01 10:58:40 INFO mapred.JobClient:     HDFS_BYTES_WRITTEN=55080
11/12/01 10:58:40 INFO mapred.JobClient:   File Input Format Counters
11/12/01 10:58:40 INFO mapred.JobClient:     Bytes Read=0
11/12/01 10:58:40 INFO mapred.JobClient:   Map-Reduce Framework
11/12/01 10:58:40 INFO mapred.JobClient:     Map input records=6
11/12/01 10:58:40 INFO mapred.JobClient:     Spilled Records=0
11/12/01 10:58:40 INFO mapred.JobClient:     Map output records=0
11/12/01 10:58:40 INFO mapred.JobClient:     SPLIT_RAW_BYTES=264


Would it be possible to send me the logs from the first attempts for every map 
task?

i.e. from
Task attempt_201111302343_0002_m_000000_0
Task attempt_201111302343_0002_m_000001_0
Task attempt_201111302343_0002_m_000002_0
Task attempt_201111302343_0002_m_000003_0
Task attempt_201111302343_0002_m_000004_0
Task attempt_201111302343_0002_m_000005_0

I think that could help us find the issue.

Thanks,

Avery

On 12/1/11 1:17 AM, Inci Cetindil wrote:
Hi,

I'm running PageRank benchmark example on a cluster with 1 master + 5 slave 
nodes. I have tried it with a large number of vertices; when I failed I decided 
to make it run with 500 vertices and 5 workers first.  However, it doesn't work 
even for 500 vertices.
I am using the latest version of Giraph from the trunk and running the 
following command:

hadoop jar giraph-0.70-jar-with-dependencies.jar 
org.apache.giraph.benchmark.PageRankBenchmark -e 1 -s 3 -v -V 500 -w 5

I attached the error message that I am receiving. Please let me know if I am 
missing something.

Best regards,
Inci






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