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From Alex Waagen <awaa...@gmail.com>
Subject Re: Shortest paths example in giraf 1.1.0.
Date Tue, 30 Jul 2013 15:38:06 GMT
Here is the file. It is almost empty.

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

</configuration>



On Tue, Jul 30, 2013 at 8:33 AM, Kyle Orlando <kyle.r.orlando@gmail.com>wrote:

> Hmmm, could you post the contents of your mapred-site.xml in
> $HADOOP_HOME/conf?  You may need to increase the number of map tasks.
>
> On Tue, Jul 30, 2013 at 11:02 AM, Alex Waagen <awaagen@gmail.com> wrote:
> > I am having some trouble getting these examples running. I’m using giraph
> > version 1.1.0 and hadoop 0.20.2. I am using the following json file as
> > input:
> >
> > [0,0,[[1,1],[3,3]]]
> > [1,0,[[0,1],[2,2],[3,1]]]
> > [2,0,[[1,2],[4,4]]]
> > [3,0,[[0,3],[1,1],[4,4]]]
> > [4,0,[[3,4],[2,4]]]
> >
> > The command I use is:
> >
> > hadoop jar
> >
> /path-to-giraph/giraph-core/target/giraph-1.1.0-SNAPSHOT-for-hadoop-0.20.203.0-jar-with-dependencies.jar
> > org.apache.giraph.GiraphRunner
> > org.apache.giraph.examples.SimpleShortestPathsComputation -vif
> > org.apache.giraph.io.formats.JsonLongDoubleFloatDoubleVertexInputFormat
> -vip
> > /path-to-input/input_file.json -of
> > org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op
> > /path-to-output/outShortest -w 1
> >
> >
> > I see the following output.
> >
> > 13/07/29 14:36:06 INFO utils.ConfigurationUtils: No edge input format
> > specified. Ensure your InputFormat does not require one.
> > 13/07/29 14:36:06 INFO job.GiraphJob: run: Since checkpointing is
> disabled
> > (default), do not allow any task retries (setting
> mapred.map.max.attempts =
> > 0, old value = 4)
> > 13/07/29 14:36:20 INFO mapred.JobClient: Running job:
> job_201307232135_0588
> > 13/07/29 14:36:21 INFO mapred.JobClient: map 0% reduce 0%
> > 13/07/29 14:36:52 INFO mapred.JobClient: map 50% reduce 0%
> > 13/07/29 14:47:24 INFO mapred.JobClient: map 0% reduce 0%
> > 13/07/29 14:47:39 INFO mapred.JobClient: Job complete:
> job_201307232135_0588
> > 13/07/29 14:47:39 INFO mapred.JobClient: Counters: 6
> > 13/07/29 14:47:39 INFO mapred.JobClient: Job Counters
> > 13/07/29 14:47:39 INFO mapred.JobClient: SLOTS_MILLIS_MAPS=670508
> > 13/07/29 14:47:39 INFO mapred.JobClient: Total time spent by all reduces
> > waiting after reserving slots (ms)=0
> > 13/07/29 14:47:39 INFO mapred.JobClient: Total time spent by all maps
> > waiting after reserving slots (ms)=0
> > 13/07/29 14:47:39 INFO mapred.JobClient: Launched map tasks=2
> > 13/07/29 14:47:39 INFO mapred.JobClient: SLOTS_MILLIS_REDUCES=0
> > 13/07/29 14:47:39 INFO mapred.JobClient: Failed map tasks=1
> >
> >
> > When I check the job tracker, I see that two map jobs were killed, with
> the
> > following errors:
> >
> > java.lang.Throwable: Child Error
> > at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:242)
> > Caused by: java.io.IOException: Task process exit with nonzero status of
> 1.
> > at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:229)
> >
> > java.lang.IllegalStateException: run: Caught an unrecoverable exception
> > exists: Failed to check
> >
> /_hadoopBsp/job_201307232135_0588/_applicationAttemptsDir/0/_superstepDir/-1/_addressesAndPartitions
> > after 3 tries!
> > at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:101)
> > at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:647)
> > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
> > at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
> > at java.security.AccessController.doPrivileged(Native Method)
> > at javax.security.auth.Subject.doAs(Subject.java:396)
> > at
> >
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1157)
> > at org.apache.hadoop.mapred.Child.main(Child.java:264)
> > Caused by: java.lang.IllegalStateException: exists: Failed to check
> >
> /_hadoopBsp/job_201307232135_0588/_applicationAttemptsDir/0/_superstepDir/-1/_addressesAndPartitions
> > after 3 tries!
> > at org.apache.giraph.zk.ZooKeeperExt.exists(ZooKeeperExt.java:369)
> > at org.apache.giraph.worker.BspServiceWorker.s
> > Task attempt_201307232135_0588_m_000001_0 failed to report status for 600
> > seconds. Killing!
> >
> > Any idea what the problem is?
> > Thanks in advance.
>
>
>
> --
> Kyle Orlando
> Computer Engineering Major
> University of Maryland
>

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