运行:
在测试的CDH Spark2, 运行spark streaming，
命令如下：
错误:
在测试的CDH Spark2, 运行spark streaming，
命令如下：
点击(此处)折叠或打开
- spark2-submit \
- --class com.telenav.dataplatform.demo.realtimecases.WeatherAlerts \
- --master yarn --deploy-mode cluster \
- /usr/local/sparkProject/realtimeCases-0.0.1-SNAPSHOT.jar
错误:
点击(此处)折叠或打开
- 17/03/02 21:01:56 INFO cluster.YarnClusterScheduler: Adding task set 0.0 with 1 tasks
- 17/03/02 21:01:56 WARN net.ScriptBasedMapping: Exception running /etc/spark2/conf.cloudera.spark2_on_yarn/yarn-conf/topology.py 172.16.102.64
- java.io.IOException: Cannot run program "/etc/spark2/conf.cloudera.spark2_on_yarn/yarn-conf/topology.py" (in directory "/yarn/nm/usercache/spark/appcache/application_1488459089260_0003/container_1488459089260_0003_01_000001"): error=2, No such file or directory
- at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
- at org.apache.hadoop.util.Shell.runCommand(Shell.java:548)
- at org.apache.hadoop.util.Shell.run(Shell.java:504)
- at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:786)
- at org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.runResolveCommand(ScriptBasedMapping.java:251)
- at org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.resolve(ScriptBasedMapping.java:188)
- at org.apache.hadoop.net.CachedDNSToSwitchMapping.resolve(CachedDNSToSwitchMapping.java:119)
- at org.apache.hadoop.yarn.util.RackResolver.coreResolve(RackResolver.java:101)
- at org.apache.hadoop.yarn.util.RackResolver.resolve(RackResolver.java:81)
- at org.apache.spark.scheduler.cluster.YarnScheduler.getRackForHost(YarnScheduler.scala:37)
- at org.apache.spark.scheduler.TaskSetManager$$anonfun$org$apache$spark$scheduler$TaskSetManager$$addPendingTask$1.apply(TaskSetManager.scala:201)
- at org.apache.spark.scheduler.TaskSetManager$$anonfun$org$apache$spark$scheduler$TaskSetManager$$addPendingTask$1.apply(TaskSetManager.scala:182)
- at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
- at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
- at org.apache.spark.scheduler.TaskSetManager.org$apache$spark$scheduler$TaskSetManager$$addPendingTask(TaskSetManager.scala:182)
- at org.apache.spark.scheduler.TaskSetManager$$anonfun$1.apply$mcVI$sp(TaskSetManager.scala:161)
- at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:160)
- at org.apache.spark.scheduler.TaskSetManager.<init>(TaskSetManager.scala:160)
- at org.apache.spark.scheduler.TaskSchedulerImpl.createTaskSetManager(TaskSchedulerImpl.scala:222)
- at org.apache.spark.scheduler.TaskSchedulerImpl.submitTasks(TaskSchedulerImpl.scala:186)
- at org.apache.spark.scheduler.DAGScheduler.submitMissingTasks(DAGScheduler.scala:1058)
- at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$submitStage(DAGScheduler.scala:933)
- at org.apache.spark.scheduler.DAGScheduler.handleJobSubmitted(DAGScheduler.scala:873)
- at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:1632)
- at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1624)
- at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1613)
- at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48)
- Caused by: java.io.IOException: error=2, No such file or directory
- at java.lang.UNIXProcess.forkAndExec(Native Method)
- at java.lang.UNIXProcess.<init>(UNIXProcess.java:247)
- at java.lang.ProcessImpl.start(ProcessImpl.java:134)
- at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
解决思路:
1.分析这句话,
17/03/02 21:01:56 WARN net.ScriptBasedMapping: Exception running /etc/spark2/conf.cloudera.spark2_on_yarn/yarn-conf/topology.py 172.16.102.64
java.io.IOException: Cannot run program "/etc/spark2/conf.cloudera.spark2_on_yarn/yarn-conf/topology.py" (in directory "/yarn/nm/usercache/spark/appcache/application_1488459089260_0003/container_1488459089260_0003_01_000001"): error=2, No such file or directory
说明在这个ip的机器上 没有这个py文件。
然后去机器验证，
然后再将01机器的 配置文件 全部copy到另外四台即可。
scp -r /etc/spark2/conf.cloudera.spark2_on_yarn root@hadoop-02:/etc/spark2/
scp -r /etc/spark2/conf.cloudera.spark2_on_yarn root@hadoop-03:/etc/spark2/
scp -r /etc/spark2/conf.cloudera.spark2_on_yarn root@hadoop-04:/etc/spark2/
scp -r /etc/spark2/conf.cloudera.spark2_on_yarn root@hadoop-05:/etc/spark2/
验证:
就ok了
