Hi All,
We've started with deploying spark on Hadoop 2 and Yarn. Our previous
configuration (still not a production cluster) was Spark on Mesos.
We're running a java application (which runs from tomcat server). The
application builds a singleton java spark context when it is first lunch and
then all users' requests are executed using this same spark context.
With Mesos - creating the context included few simple operation and was
possible via the java application.
I successfully executed Spark and Yarn example and even my own example
(although I was unable to find the output logs)
I noticed that it is being done using org.apache.spark.deploy.yarn.Client but
have no example regarding how it can be done.
Successful command:
SPARK_JAR=/app/spark-0.8.0-incubating/assembly/target/scala-2.9.3/spark-assembly-0.8.0-incubating-hadoop2.0.4-Intel.jar
./spark-class org.apache.spark.deploy.yarn.Client --jar
/app/iot/test/test3-0.0.1-SNAPSHOT.jar --class test3.yarntest
--args yarn-standalone --num-workers 3 --master-memory 4g
--worker-memory 2g --worker-cores
When I try to emulate the previous method we used and simple execute my test
jar - the execution hangs.
Our main goal is to be able to execute spark context on yarn from java code
(and not shell script) and create a singleton spark context.
In addition the application should be executed on a remote YARN server and not
on a local one.
Can you please advice?
Thanks,
Ido
Problematic Command:
/usr/java/latest/bin/java -cp
/usr/lib/hbase/hbase-0.94.7-Intel.jar:/usr/lib/hadoop/hadoop-auth-2.0.4-Intel.jar:/usr/lib/hadoop/lib/commons-cli-1.2.jar:/app/spark-0.8.0-incubating/conf:/app/spark-0.8.0-incubating/assembly/target/scala-2.9.3/spark-assembly-0.8.0-incubating-hadoop2.0.4-Intel.jar:/etc/hadoop/conf:/etc/hbase/conf:/etc/hadoop/conf:/app/iot/test/test3-0.0.1-SNAPSHOT.jar
-Djava.library.path=/usr/lib/hadoop/lib/native -Xms512m -Xmx512m test3.yarntest
Spark Context code piece:
JavaSparkContext sc = new JavaSparkContext(
"yarn-standalone",
"SPARK YARN TEST"
);
Log:
13/12/12 17:30:36 INFO slf4j.Slf4jEventHandler: Slf4jEventHandler started
13/12/12 17:30:36 INFO spark.SparkEnv: Registering BlockManagerMaster
13/12/12 17:30:36 INFO storage.MemoryStore: MemoryStore started with capacity
323.9 MB.
13/12/12 17:30:36 INFO storage.DiskStore: Created local directory at
/tmp/spark-local-20131212173036-09c0
13/12/12 17:30:36 INFO network.ConnectionManager: Bound socket to port 39426
with id =
ConnectionManagerId(ip-172-31-43-121.eu<http://ip-172-31-43-121.eu/>-west-1.compute.internal,39426)
13/12/12 17:30:36 INFO storage.BlockManagerMaster: Trying to register
BlockManager
13/12/12 17:30:36 INFO storage.BlockManagerMaster: Registered BlockManager
13/12/12 17:30:37 INFO server.Server: jetty-7.x.y-SNAPSHOT
13/12/12 17:30:37 INFO server.AbstractConnector: Started
[email protected]:43438<mailto:[email protected]:43438>
13/12/12 17:30:37 INFO broadcast.HttpBroadcast: Broadcast server started at
http://172.31.43.121:43438<http://172.31.43.121:43438/>
13/12/12 17:30:37 INFO spark.SparkEnv: Registering MapOutputTracker
13/12/12 17:30:37 INFO spark.HttpFileServer: HTTP File server directory is
/tmp/spark-b48abc5a-53c6-4af1-9c3c-725e1cd7fbb9
13/12/12 17:30:37 INFO server.Server: jetty-7.x.y-SNAPSHOT
13/12/12 17:30:37 INFO server.AbstractConnector: Started
[email protected]:60476<mailto:[email protected]:60476>
13/12/12 17:30:37 INFO server.Server: jetty-7.x.y-SNAPSHOT
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/storage/rdd,null}
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/storage,null}
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/stages/stage,null}
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/stages/pool,null}
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/stages,null}
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/environment,null}
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/executors,null}
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/metrics/json,null}
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/static,null}
13/12/12 17:30:37 INFO handler.ContextHandler: started
o.e.j.s.h.ContextHandler{/,null}
13/12/12 17:30:37 INFO server.AbstractConnector: Started
[email protected]:4040<mailto:[email protected]:4040>
13/12/12 17:30:37 INFO ui.SparkUI: Started Spark Web UI at
http://ip-172-31-43-121.eu-west-1.compute.internal:4040<http://ip-172-31-43-121.eu-west-1.compute.internal:4040/>
13/12/12 17:30:37 INFO cluster.YarnClusterScheduler: Created
YarnClusterScheduler
13/12/12 17:30:37 INFO yarn.ApplicationMaster$$anon$1: Adding shutdown hook for
context
org.apache.spark.SparkContext@475a07bf<mailto:org.apache.spark.SparkContext@475a07bf>
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