spark standalone结构

1 standalone架构下的角色介绍：

Master:负责任务分发；负责分配资源； 老大

Worker:运行应用代码的节点,接收Master请求，启动任务；向Master汇报信息，资源信息和健康状况。 项目经理

Executor:worker node的一个进程,接收worker的任务执行请求，执行任务；向worker汇报任务执行情况。 工程师

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-->

Driver:提交任务；监控任务； 客户