轉(zhuǎn)載自? http://www.wangsenfeng.com/articles/2016/10/26/1477467509513.html
Client：提交作業(yè)兜叨。
Master：接收作業(yè)穿扳，啟動Driver和Executor，管理Worker国旷。?
Worker：管理節(jié)點資源矛物，啟動Driver和Executor。
（1）Client?to?Master
RegisterApplication：注冊應(yīng)用跪但。?
（2）Master?to?Client?
RegisteredApplication：注冊應(yīng)用后履羞，回復(fù)給Client。
ExecutorAdded：通知Client?Worker已經(jīng)啟動了Executor屡久，當向Worker發(fā)送Launch-Executor時忆首，通知Client?Actor。?
ExecutorUpdated：通知Client?Executor狀態(tài)已更新涂身。
（3）Master?to?Worker?
LaunchExecutor：啟動Executor雄卷。?
RegisteredWorker：Worker注冊的回復(fù)。?
RegisterWorkerFailed：注冊Worker失敗的回復(fù)蛤售。?
KillExecutor：停止Executor進程丁鹉。?
（4）Worker?to?Master
RegisterWorker：注冊Worker。
Heartbeat：周期性地Master發(fā)送心跳信息悴能。
ExecutorStateChanged：通知Master揣钦，Executor狀態(tài)更新。
