mvn clean install
cp target/yarn-examples-1.0-SNAPSHOT.jar $HADOOP_HOME/share/hadoop/yarn/lib/cd $HADOOP_HOME
hadoop jar share/hadoop/yarn/lib/yarn-examples-1.0-SNAPSHOT.jar com.wikibooks.hadoop.yarn.examples.MyClient
usage: Client
-appname <arg> Application Name. Default
value - HelloYarn
-container_memory <arg> Amount of memory in MB to
be requested to run the
shell command
-container_vcores <arg> Amount of virtual cores to
be requested to run the
shell command
-help Print usage
-jar <arg> Jar file containing the
application master
-master_memory <arg> Amount of memory in MB to
be requested to run the
application master
-master_vcores <arg> Amount of virtual cores to
be requested to run the
application master
-num_containers <arg> No. of containers on which
the shell command needs to
be executed
-priority <arg> Application Priority.
Default 0
-queue <arg> RM Queue in which this
application is to be
submitted
-timeout <arg> Application timeout in
millisecondscd $HADOOP_HOME
$HADOOP_HOME/bin/yarn jar share/hadoop/yarn/lib/yarn-examples-1.0-SNAPSHOT.jar com.wikibooks.hadoop.yarn.examples.MyClient -jar share/hadoop/yarn/lib/yarn-examples-1.0-SNAPSHOT.jar -num_containers=1If you run the MyClient, you will find a error log in container stderr file as follow
INFO impl.AMRMClientAsyncImpl: Interrupted while waiting for queue
java.lang.InterruptedException
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(AbstractQueuedSynchronizer.java:1961)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1996)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
at org.apache.hadoop.yarn.client.api.async.impl.AMRMClientAsyncImpl$CallbackHandlerThread.run(AMRMClientAsyncImpl.java:275)Don't worry about it, above log is a unnecessary log which is a bug for hadoop. See YARN-1022: https://issues.apache.org/jira/browse/YARN-1022