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From Claudio Martella <claudio.marte...@gmail.com>
Subject Re: PageRankBenchmark failing with zooKeeper.KeeperException
Date Tue, 06 Mar 2012 16:36:12 GMT
Are you running on a real cluster or a pseudo-distributed node?
Because the default 2-slots is the default config there.

On Tue, Mar 6, 2012 at 3:33 PM, Abhishek Srivastava <asr.lkml@gmail.com> wrote:
> Thanks Avery !
> So it runs to completion with -w 1 and about 500 vertices;  does not go
> through with -w 2 due to
> the lack of map slots as you pointed out.
>
> - Abhishek.
>
>
> On Monday 05 March 2012 11:53 PM, Avery Ching wrote:
>>
>> Hi Abhishek,
>>
>> Nice to meet you.  Can you try it with less workers?  For instance -w 1 or
>> -w 2?  I think the likely issue is that you need have as many map slots as
>> the number of workers + at least one master.  If you don't have enough
>> slots, the job will fail.  Also, you might want to dial down the number of
>> vertices a bit, unless you have oodles of memory.  Please let us know if
>> that helps.
>>
>> Avery
>>
>> On 3/5/12 9:03 PM, Abhishek Srivastava wrote:
>>>
>>> Hi All,
>>>
>>> I have been trying (quite unsuccessfully for a while now) to run the
>>> PageRankBenchmark
>>> to play around with Giraph. I got hadoop running in a single node setup
>>> and hadoop
>>> jobs and jars run just fine. When I try to run the PageRankBenchmark, I
>>> get this
>>> incomprehensible error which I'm not able to diagnose.
>>>
>>>
>>>
>>> -----------------------------------CUT
>>> HERE---------------------------------------------
>>> abhi@darkstar:trunk $ hadoop jar
>>> target/giraph-0.70-jar-with-dependencies.jar
>>> org.apache.giraph.benchmark.PageRankBenchmark -e 1 -s 3 -v -V 50000000 -w 30
>>> Warning: $HADOOP_HOME is deprecated.
>>>
>>> Using org.apache.giraph.benchmark.PageRankBenchmark$PageRankVertex
>>> 12/03/04 03:44:08 WARN bsp.BspOutputFormat: checkOutputSpecs:
>>> ImmutableOutputCommiter will not check anything
>>> 12/03/04 03:44:09 INFO mapred.JobClient: Running job:
>>> job_201203031851_0004
>>> 12/03/04 03:44:10 INFO mapred.JobClient:  map 0% reduce 0%
>>> 12/03/04 03:44:26 INFO mapred.JobClient:  map 3% reduce 0%
>>> 12/03/04 10:43:52 INFO mapred.JobClient:  map 0% reduce 0%
>>> 12/03/04 10:43:57 INFO mapred.JobClient: Task Id :
>>> attempt_201203031851_0004_m_000000_0, Status : FAILED
>>> Task attempt_201203031851_0004_m_000000_0 failed to report status for
>>> 24979 seconds. Killing!
>>> 12/03/04 10:44:00 INFO mapred.JobClient: Task Id :
>>> attempt_201203031851_0004_m_000001_0, Status : FAILED
>>> Task attempt_201203031851_0004_m_000001_0 failed to report status for
>>> 25159 seconds. Killing!
>>> 12/03/04 10:44:07 INFO mapred.JobClient:  map 3% reduce 0%
>>> 12/03/04 10:49:07 INFO mapred.JobClient:  map 0% reduce 0%
>>> 12/03/04 10:49:12 INFO mapred.JobClient: Task Id :
>>> attempt_201203031851_0004_m_000000_1, Status : FAILED
>>> java.lang.Throwable: Child Error
>>>    at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
>>> Caused by: java.io.IOException: Task process exit with nonzero status of
>>> 1.
>>>    at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
>>>
>>> 12/03/04 10:49:22 INFO mapred.JobClient:  map 3% reduce 0%
>>> 12/03/04 10:54:23 INFO mapred.JobClient:  map 0% reduce 0%
>>> 12/03/04 10:54:28 INFO mapred.JobClient: Task Id :
>>> attempt_201203031851_0004_m_000000_2, Status : FAILED
>>> java.lang.Throwable: Child Error
>>>    at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
>>> Caused by: java.io.IOException: Task process exit with nonzero status of
>>> 1.
>>>    at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
>>>
>>> 12/03/04 10:54:38 INFO mapred.JobClient:  map 3% reduce 0%
>>> 12/03/04 10:59:10 INFO mapred.JobClient: Task Id :
>>> attempt_201203031851_0004_m_000001_1, Status : FAILED
>>> java.lang.IllegalStateException: unregisterHealth: KeeperException -
>>> Couldn't delete
>>> /_hadoopBsp/job_201203031851_0004/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir/darkstar_1
>>>    at
>>> org.apache.giraph.graph.BspServiceWorker.unregisterHealth(BspServiceWorker.java:727)
>>>    at
>>> org.apache.giraph.graph.BspServiceWorker.failureCleanup(BspServiceWorker.java:735)
>>>    at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:648)
>>>    at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
>>>    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
>>>    at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
>>>    at java.security.AccessController.doPrivileged(Native Method)
>>>    at javax.security.auth.Subject.doAs(Subject.java:396)
>>>    at
>>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
>>>    at org.apache.hadoop.mapred.Child.main(Child.java:249)
>>> Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException:
>>> KeeperErrorCode = ConnectionLoss for
>>> /_hadoopBsp/job_201203031851_0004/_applicationAttemptsDir/0/_superstepDir/-1/_workerHealthyDir/darkstar_1
>>>    at
>>> org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
>>>    at
>>> org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
>>>    at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:728)
>>>    at
>>> org.apache.giraph.graph.BspServiceWorker.unregisterHealth(BspServiceWorker.java:721)
>>>    ... 9 more
>>>
>>> Task attempt_201203031851_0004_m_000001_1 failed to report status for 601
>>> seconds. Killing!
>>> attempt_201203031851_0004_m_000001_1: log4j:WARN No appenders could be
>>> found for logger (org.apache.zookeeper.ClientCnxn).
>>> attempt_201203031851_0004_m_000001_1: log4j:WARN Please initialize the
>>> log4j system properly.
>>> 12/03/04 10:59:47 INFO mapred.JobClient:  map 0% reduce 0%
>>> 12/03/04 10:59:58 INFO mapred.JobClient: Job complete:
>>> job_201203031851_0004
>>> 12/03/04 10:59:58 INFO mapred.JobClient: Counters: 6
>>> 12/03/04 10:59:58 INFO mapred.JobClient:   Job Counters
>>> 12/03/04 10:59:58 INFO mapred.JobClient:     SLOTS_MILLIS_MAPS=977551
>>> 12/03/04 10:59:58 INFO mapred.JobClient:     Total time spent by all
>>> reduces waiting after reserving slots (ms)=0
>>> 12/03/04 10:59:58 INFO mapred.JobClient:     Total time spent by all maps
>>> waiting after reserving slots (ms)=0
>>> 12/03/04 10:59:58 INFO mapred.JobClient:     Launched map tasks=7
>>> 12/03/04 10:59:58 INFO mapred.JobClient:     SLOTS_MILLIS_REDUCES=0
>>> 12/03/04 10:59:58 INFO mapred.JobClient:     Failed map tasks=1
>>> -----------------------------------CUT
>>> HERE---------------------------------------------
>>>
>>>
>>> Thanks,
>>> Abhishek.
>>
>>
>



-- 
   Claudio Martella
   claudio.martella@gmail.com

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