failure atomicity 中文意思是什麼
failure atomicity
解釋
失敗原子性-
But at present, there seem to be much deficiencies on the correctness and reliability of workflow and it can not meet the practical needs very well. in this paper, we introduce some transactional properties to workflow and put forward a nested workflow model with transactional characteristics. this model includes nested tasks and dependencies between the tasks, and it is provided with some atm properties such as relaxed isolation and atomicity. further more, we discuss the execution mechanism, system recovery and error handling of workflow on the base of the transactional characteristics. by defining consistency unit and execution atomic unit, we loosen the failure atomicity, serializability of concurrent worflow and isolation between tasks, thus, workflow meets the needs of the application semantics more flexiblly with high correctness and reliability
這個模型包含嵌套任務和任務間的依賴，並具有高級事務模型的一些屬性，比如鬆散的隔離性和原子性。我們又進一步在這個模型的基礎上利用這些事務性質提出了有關工作流的執行機制、系統恢復和錯誤處理等問題的解決方法。通過定義一致性單元和執行單元放鬆了事務的失敗原子性、並發工作流的可串列化要求以及任務間的隔離性，使工作流在具有高可靠性和正確性的前提下更靈活地滿足實際應用語義的要求。
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