提交spark任务Requesting 1 new executor because tasks are backlogged (new desired total will be 1)

这两天在集群上提交任务时一直提交不成功，一直爆出下面的问题，如果不主动停掉就会一直刷 check your cluster UI to ensure that workers are registered and have sufficient resources，开始以为是资源不足的问题，在网上找了好多方法测试都不行，后来发现虽然一直再刷等资源的问题（下面的报错日志，以我的蹩脚英语理解为等资源，并且spark的管理页面显示有任务提交上来，一直处于waiting）,检查yarn的管理页面发现，yarn上根本就没有接受到spark提交的任务请求，问题就出在这

问题原因是：提交任务的方式错了，我刚开始提交任务的命令是./spark-submit --class Wordcount
--master spark://10.0.10.29:7077 --num-executors 100 --executor-cores 2 --conf spark.default.parallelism=1000 --conf spark.storage.memoryFraction=0.5 /home/zkp/sparktest.jar sparktest/b.txt

解决办法：把提交命令改成./spark-submit --class Wordcount --master yarn-cluster--num-executors 100 --executor-cores 2 --conf spark.default.parallelism=1000
--conf spark.storage.memoryFraction=0.5 /home/zkp/sparktest.jar sparktest/b.txt就好了

Requesting 1 new executor because tasks are backlogged (new desired total will be 1)

17/11/03 14:35:35 WARN scheduler.TaskSchedulerImpl: Initial job has not accepted any resources; check your cluster UI to ensure that workers are registered and have sufficient resources

17/11/03 14:35:50 WARN scheduler.TaskSchedulerImpl: Initial job has not accepted any resources; check your cluster UI to ensure that workers are registered and have sufficient resources
17/11/03 14:36:05 WARN scheduler.TaskSchedulerImpl: Initial job has not accepted any resources; check your cluster UI to ensure that workers are registered and have sufficient resources

记录下来，希望能帮到想我一样的新手