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From 김원배 <zwi...@gmail.com>
Subject Re: problem with running shortestpath example.
Date Mon, 24 Jun 2013 08:58:24 GMT
Thank you all. However, Christian, could you explain more specific for me?
Because I'm beginner :) please.


2013/6/24 Christian Krause <me@ckrause.org>

> Hi,
> You have a failed map task. Take a look at the web interface of the Job
> Tracker. Open the logs of your job and look for exceptions.
>
> Cheers,
> Christian
>
>
> 2013/6/24 김원배 <zwigul@gmail.com>
>
>> Hi, I'm beginner on giraph.
>> I have a problem with running shortestpath example.
>>
>> I'm using giraph-1.0.0
>> hadoop 0.20.203.0
>> maven 3.1.0-alpha-1
>> java 1.6.0_22
>>
>>
>> when I command like this,
>>
>>
>> hadoop jar \
>> /home/wb/giraph-1.0.0/giraph-core/target/giraph-1.0.0-for-hadoop-0.20.203.0-jar-with-dependencies.jar
>> \
>> org.apache.giraph.GiraphRunner \
>> org.apache.giraph.examples.SimpleShortestPathsVertex \
>> -vif
>> org.apache.giraph.io.formats.JsonLongDoubleFloatDoubleVertexInputFormat \
>> -vip ./in/input \
>> -of org.apache.giraph.io.formats.IdWithValueTextOutputFormat \
>> -op ./outShortest \
>> -w 1
>>
>>
>> I get this result
>>
>>
>> Exception in thread "main" java.lang.ClassNotFoundException:
>> org.apache.giraph.examples.SimpleShortestPathsVertex
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
>>         at java.lang.Class.forName0(Native Method)
>>         at java.lang.Class.forName(Class.java:186)
>>         at
>> org.apache.giraph.utils.ConfigurationUtils.populateGiraphConfiguration(ConfigurationUtils.java:210)
>>         at
>> org.apache.giraph.utils.ConfigurationUtils.parseArgs(ConfigurationUtils.java:147)
>>         at org.apache.giraph.GiraphRunner.run(GiraphRunner.java:74)
>>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
>>         at org.apache.giraph.GiraphRunner.main(GiraphRunner.java:124)
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>         at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>>         at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>         at java.lang.reflect.Method.invoke(Method.java:616)
>>         at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
>>
>>
>>
>>
>> and when I command like this,
>>
>>
>> hadoop jar \
>> /home/wb/giraph-1.0.0/giraph-examples/target/giraph-examples-1.0.0-for-hadoop-0.20.203.0-jar-with-dependencies.jar
>> \
>> org.apache.giraph.GiraphRunner \
>> org.apache.giraph.examples.SimpleShortestPathsVertex \
>> -vif
>> org.apache.giraph.io.formats.JsonLongDoubleFloatDoubleVertexInputFormat \
>> -vip /in/input \
>> -of org.apache.giraph.io.formats.IdWithValueTextOutputFormat \
>> -op /outShortest \
>> -w 1
>>
>>
>> I get this result.
>>
>>
>> 13/06/24 16:40:54 INFO utils.ConfigurationUtils: No edge input format
>> specified. Ensure your InputFormat does not require one.
>> 13/06/24 16:40:54 WARN job.GiraphConfigurationValidator: Output format
>> vertex index type is not known
>> 13/06/24 16:40:54 WARN job.GiraphConfigurationValidator: Output format
>> vertex value type is not known
>> 13/06/24 16:40:54 WARN job.GiraphConfigurationValidator: Output format
>> edge value type is not known
>> 13/06/24 16:40:54 INFO job.GiraphJob: run: Since checkpointing is
>> disabled (default), do not allow any task retries (setting
>> mapred.map.max.attempts = 0, old value = 4)
>> 13/06/24 16:40:56 INFO mapred.JobClient: Running job:
>> job_201306241432_0005
>> 13/06/24 16:40:57 INFO mapred.JobClient:  map 0% reduce 0%
>> 13/06/24 16:41:18 INFO mapred.JobClient:  map 50% reduce 0%
>> 13/06/24 16:41:21 INFO mapred.JobClient:  map 100% reduce 0%
>> 13/06/24 16:51:29 INFO mapred.JobClient:  map 50% reduce 0%
>> 13/06/24 16:51:37 INFO mapred.JobClient: Job complete:
>> job_201306241432_0005
>> 13/06/24 16:51:37 INFO mapred.JobClient: Counters: 6
>> 13/06/24 16:51:37 INFO mapred.JobClient:   Job Counters
>> 13/06/24 16:51:37 INFO mapred.JobClient:     SLOTS_MILLIS_MAPS=1242845
>> 13/06/24 16:51:37 INFO mapred.JobClient:     Total time spent by all
>> reduces waiting after reserving slots (ms)=0
>> 13/06/24 16:51:37 INFO mapred.JobClient:     Total time spent by all maps
>> waiting after reserving slots (ms)=0
>> 13/06/24 16:51:37 INFO mapred.JobClient:     Launched map tasks=2
>> 13/06/24 16:51:37 INFO mapred.JobClient:     SLOTS_MILLIS_REDUCES=0
>> 13/06/24 16:51:37 INFO mapred.JobClient:     Failed map tasks=1
>>
>>
>> I cannot find out what's the probelm. Thanks.
>>
>>
>

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