spark executor數(shù)量 executor和executors的區(qū)別?
executor和executors的區(qū)別?1. Executor是“Executor”接口,用于執(zhí)行任務(wù)。準(zhǔn)確地說(shuō),executor提供execute()接口來(lái)執(zhí)行提交的可運(yùn)行任務(wù)的對(duì)象。execu
executor和executors的區(qū)別?
1. Executor是“Executor”接口,用于執(zhí)行任務(wù)。準(zhǔn)確地說(shuō),executor提供execute()接口來(lái)執(zhí)行提交的可運(yùn)行任務(wù)的對(duì)象。executor的目的是提供一種機(jī)制來(lái)分離“任務(wù)提交”和“如何運(yùn)行任務(wù)”。它只包含一個(gè)函數(shù)接口。2Executorsexecutors是一個(gè)靜態(tài)工廠類。它通過(guò)靜態(tài)工廠方法返回executorservice、scheduledexecutorservice、threadfactory和可調(diào)用類的對(duì)象。