concurrency control algorithm 中文意思是什麼

concurrency control algorithm 解釋
并行性控制演算法
  • concurrency : 並發性
  • control : n 1 支配，管理，管制，統制，控制；監督。2 抑制（力）；壓制，節制，拘束；【農業】防治。3 檢查；核...
  • algorithm : n. 【數學】演算法；規則系統；演段。
  1. We analysis the conflict, convert channel and starvation problems of concurrent schedule based on strict - 2pl locking protocal which applies nhstm model, then present a concurrent scheduling algorithm making use of buffer and point p. also, we proved the concurrent schedule algorithm is serializable. at the same time, we introduce the key technical used in nhsdb concurrency control mechanism, and give the implementation details

    我們對應用nhstm模型的，通過應用嚴格兩段鎖協議實施的並發調度中，可能存在的並發沖突，隱通道和饑餓問題進行分析，在此基礎上提出了一種利用緩沖和p點的並發調度演算法，並給出了該演算法的並發調度正確性證明，解決多級安全條件下的隱通道和饑餓問題。
  2. Third, a new optimistic concurrency control algorithm based on dynamic adjustment of execution order using commit space in rtdbss, called occ - cs, is introduced and the complexity of this algorithm is analyzed

    3 、提出了基於提交范圍（ commitspace ）的occ - cs演算法來實現動態調整執行順序方法，並對occ - cs演算法進行了復雜度分析。
  3. A platform of network communications about mutimedia information and interfaces of the xml document processing are realized. following the xml criterions, a interactive protocal on tcp / ip is built. also, a management model of the users " power is put forward and implemented. what ' s more, a concurrency control algorithm based on node version is put forward and improved

    系統實現了支持多媒體交互的網路傳輸平臺；提出並實現了應用層消息轉發和組播演算法；採用xml規范在tcp ip協議之上實現了系統的協作通信協議；提出並實現了系統的用戶和權限管理模型；實現了xml文檔處理的dom介面；提出並實現了基於版本序號的並發控制演算法，並對演算法進行了多方面改進；用xslt實現了課件的多樣性顯示和發布。
  4. This paper analysis the shortage of traditional concurrency control method in multidatabase and brings froward a new concurrency control algorithm. we also bring forward a new recovery method for multidatabase : synthesis 2pc protocol, which combines many multidatabase recovery methods into one algorithm, and makes the algorithm more useful and more efficient

    本文還提出了一種新的多庫系統恢復機制：綜合2pc協議，它把已有的幾種多庫系統恢復機制結合在一個演算法中使用，使其更適于多庫系統的異構性，應用范圍更為廣泛，效果也更好。
  5. This paper analyzes some key issues of cooperative editing system. and a concurrency control algorithm in a cooperative editing is introduced, which provides the stable and effective support for the cooperative editing system. it enhances flexibility, practicality and compatibility of the original cooperative editing system

    本文分析研究了協同編輯器需要解決的一些關鍵問題，設計和實現了z - office中協同編輯處理模塊的並發控制演算法，使協同編輯器具備了有效穩定的實時協同處理能力，並且提高了協同編輯器的靈活性、實用性和通用性。
  6. As the application of distributed computing is used much more widely ， distributed database becomes a significant part of information management it avoids a lot of disadvantages of conventional centralized database ， and is applicable to many situations distributed database is a set of data which is the unity logic ， but in fact these data is located on different sites it is of high availability ， easy expansibility ， high concurrency ， high efficiency and etc in distributed system ， data redundancy is a method to improve the speed of query and the availability of system distributed query should shield the lower level details of data redundancy from end users ， distributed transaction should ensure data from disaccord this paper introduces basic conceptions of distributed database firstly ， discusses distributed transaction and concurrent control ， describes the development prototype mysql ’ s characters ， architecture and executive mechanism ， then shows the skeleton model of dpsql and exposes the strategy and algorithm of distributed query and distributed transaction ， at last analyzes the extra expenses and response delay of distributed processes this paper exposes the implementation mechanism of distributed query and distributed transaction emphatically distributed query uses the strategy of “ read one ， write a11 ” s0 in such a system if user ’ s requests are read - - only for the most part and the distribution of data redundancy is plausible ， efficiency is very high distributed transaction uses two - 。 phase commit protocol to ensure the consistency of global data ， which has less communication overhead

    分散式查詢需要向用戶屏蔽數據冗餘分散的底層細節，分散式事務處理要保證全局數據完整，這都是傳統集中式數據庫不曾面臨的問題。本文首先介紹了分散式數據庫的概念性問題；接著討論了分散式事務涉及的定義及演算法；然後描述了dpsql的原型mysql的特性、結構和執行機制；繼而給出了dpsql的梗概模型，闡述了實現分散式查詢和分散式事務處理的策略及演算法；最後分析了進行分散式處理給系統增加的額外開銷和客戶端的額外響應延遲。本文重點描述了分散式查詢和分散式事務處理的實現機制，分散式查詢採用」讀一個寫全部」的本地優先策略，在讀操作頻繁的系統中，只要庫的分佈合理，單機效率極高，幾乎無任何附加開銷和延遲，而以整個系統的角度看來，吞吐量就更是優于單機系統；分散式事務處理採用兩階段提交協議，通信次數較少並能確實保證副本一致。
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