问题

• 在windows上运行spark on yarn出现

Exception in thread "main" org.apache.spark.SparkException: When running with master 'yarn' either HADOOP_CONF_DIR or YARN_CONF_DIR must be set in the environment.
        at org.apache.spark.deploy.SparkSubmitArguments.error(SparkSubmitArguments.scala:657)                                                                      
        at org.apache.spark.deploy.SparkSubmitArguments.validateSubmitArguments(SparkSubmitArguments.scala:290)                                                    
        at org.apache.spark.deploy.SparkSubmitArguments.validateArguments(SparkSubmitArguments.scala:251)                                                          
        at org.apache.spark.deploy.SparkSubmitArguments.<init>(SparkSubmitArguments.scala:120)                                                                     
        at org.apache.spark.deploy.SparkSubmit$$anon$2$$anon$1.<init>(SparkSubmit.scala:907)                                                                       
        at org.apache.spark.deploy.SparkSubmit$$anon$2.parseArguments(SparkSubmit.scala:907)                                                                       
        at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:81)                                                                                      
        at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:920)                                                                             
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:929)                                                                                        
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala) 

• 在conf/spark-env.sh文件中配置HADOOP_CONF_DIR和YARN_CONF_DIR后依然无法解决问题

原因

• 不明