这期内容当中小编将会给大家带来有关CDH Spark2的spark2-submit的一个No such file or directory问题怎么解决，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

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运行:
在测试的CDH Spark2, 运行spark streaming，
命令如下：

• 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:

• 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.(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.(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

上述就是小编为大家分享的CDH Spark2的spark2-submit的一个No such file or directory问题怎么解决了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注创新互联行业资讯频道。

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