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.l...@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.marte...@gmail.com
