Я использовал следующую команду для запуска искрового Java-примера подсчета слов: -
time spark-submit --deploy-mode cluster --master spark://192.168.0.7:6066 --class org.apache.spark.examples.JavaWordCount /home/pi/Desktop/example/new/target/javaword.jar /books_50.txt
Когда я запускаю его, выводится следующее: -
Running Spark using the REST application submission protocol.
16/07/18 03:55:41 INFO rest.RestSubmissionClient: Submitting a request to launch an application in spark://192.168.0.7:6066.
16/07/18 03:55:44 INFO rest.RestSubmissionClient: Submission successfully created as driver-20160718035543-0000. Polling submission state...
16/07/18 03:55:44 INFO rest.RestSubmissionClient: Submitting a request for the status of submission driver-20160718035543-0000 in spark://192.168.0.7:6066.
16/07/18 03:55:44 INFO rest.RestSubmissionClient: State of driver driver-20160718035543-0000 is now RUNNING.
16/07/18 03:55:44 INFO rest.RestSubmissionClient: Driver is running on worker worker-20160718041005-192.168.0.12-42405 at 192.168.0.12:42405.
16/07/18 03:55:44 INFO rest.RestSubmissionClient: Server responded with CreateSubmissionResponse:
{
"action" : "CreateSubmissionResponse",
"message" : "Driver successfully submitted as driver-20160718035543-0000",
"serverSparkVersion" : "1.6.2",
"submissionId" : "driver-20160718035543-0000",
"success" : true
}
Я проверил журнал конкретного рабочего (192.168.0.12), и он говорит:
Launch Command: "/usr/lib/jvm/jdk-8-oracle-arm32-vfp-hflt/jre/bin/java" "-cp" "/opt/spark/conf/:/opt/spark/lib/spark-assembly-1.6.2-hadoop2.6.0.jar:/opt/spark/lib/datanucleus-api-jdo-3.2.6.jar:/opt/spark/lib/datanucleus-core-3.2.10.jar:/opt/spark/lib/datanucleus-rdbms-3.2.9.jar" "-Xms1024M" "-Xmx1024M" "-Dspark.driver.supervise=false" "-Dspark.app.name=org.apache.spark.examples.JavaWordCount" "-Dspark.submit.deployMode=cluster" "-Dspark.jars=file:/home/pi/Desktop/example/new/target/javaword.jar" "-Dspark.master=spark://192.168.0.7:7077" "-Dspark.executor.memory=10M" "org.apache.spark.deploy.worker.DriverWrapper" "spark://[email protected]:42405" "/opt/spark/work/driver-20160718035543-0000/javaword.jar" "org.apache.spark.examples.JavaWordCount" "/books_50.txt"
========================================
log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
16/07/18 04:10:58 INFO SecurityManager: Changing view acls to: pi
16/07/18 04:10:58 INFO SecurityManager: Changing modify acls to: pi
16/07/18 04:10:58 INFO SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(pi); users with modify permissions: Set(pi)
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
16/07/18 04:11:00 WARN Utils: Service 'Driver' could not bind on port 0. Attempting port 1.
Exception in thread "main" java.net.BindException: Cannot assign requested address: Service 'Driver' failed after 16 retries! Consider explicitly setting the appropriate port for the service 'Driver' (for example spark.ui.port for SparkUI) to an available port or increasing spark.port.maxRetries.
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:125)
at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:485)
at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1089)
at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:430)
at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:415)
at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:903)
at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:198)
at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:348)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at java.lang.Thread.run(Thread.java:745)
Мой файл spark-env.sh (для мастера) содержит: -
export SPARK_MASTER_WEBUI_PORT="8080"
export SPARK_MASTER_IP="192.168.0.7"
export SPARK_EXECUTOR_MEMORY="10M"
Мой файл spark-env.sh (для рабочего) содержит: -
export SPARK_WORKER_WEBUI_PORT="8080"
export SPARK_MASTER_IP="192.168.0.7"
export SPARK_EXECUTOR_MEMORY="10M"
Пожалуйста помоги...!!
