Yes I'm running it in pseudo-distributed mode on a single physical host.
Should it be able to handle 2 workers ?
On Tuesday 06 March 2012 08:36 AM, Claudio Martella wrote:
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.
