two-phase commit protocol 中文意思是什麼
two-phase commit protocol
解釋
二相執行協議-
Since this was the first two - phase - commit protocol operation there is no need to pass any special information into the method
因為這是第一個兩階段提交（ two - phase - commit ）協議操作，所以不需要向該方法傳遞任何特殊信息。 -
The data modifications are then immediately propagated to the publisher using two - phase commit protocol
服務器訂閱（ server subscription ）一種對合併發布的訂閱。 -
When the application commits the transaction, the transaction manager initiates the two - phase commit protocol
在應用程序提交事務時，事務管理器啟動兩階段提交協議。 -
The data modifications are then immediately propagated to the publisher using the two - phase commit protocol
服務器名稱（ server name ）用於唯一標識網路上的服務器的名稱。 -
Interfaces deal with managing distributed transactions across various back ends that support a two - phase commit protocol
介面負責管理跨支持兩階段提交協議的各種後端的分散式事務。 -
In this article, gang focuses on xa distributed transactions and on the inner workings of the two - phase commit protocol
在本文當中， gang將集中探討xa分散式事務及兩階段確認協議的內部工作。 -
In summary, the two - phase commit protocol and the resource managers combine to make transactions atomic and durable. the transaction
總的來說，兩階段提交協議和資源管理器相結合，使事務成為原子的和持久的。 -
Using the websphere global transaction, where two - phase commit protocol is in place, will significantly decrease the overall performance
利用websphere全局處理事務，在這里的適當位置提交協議的兩種狀態，將明顯降低總體性能。 -
It uses the two - phase commit protocol to guarantee the all - or - nothing semantics that either all the resources commit the change permanently or none of them precede the update rollback
它利用兩階段提交協議來保證全部或全不（ all - or - nothing ）語義，即要麼所有的資源都永久的提交變更，要麼在更新（回滾）之前一個都不提交。 -
The mechanism of transaction scheduling and transaction management, the implementation of two - phase commit protocol, the recovery of communication and database visiting breakdown in tp monitor are discussed in detail
討論了tp監視器中的事務調度及事務管理機制、兩階段提交協定的實現、通信故障和數據庫訪問故障的恢復機制。 -
The good news is that websphere mq does support the xa specification and two - phase commit protocol, and it perfectly coordinates with websphere application server when handling global transactions
有一個好消息就是websphere mq支持xa規范和兩階段提交協議，並且它在處理全局事務時與websphere application server可以很好的協調。 -
This paper provides a discussion on the theory of distributed database, summarize the virtues and flaws of two - phase - commit protocol and replication technology, and then puts forward a synchronous update system model to solve the problems encountered while longkou port was realizing the data share among different kind of databases located in different area. this model, based on 2pc and the mainstream database replicate technology at present, can realize data sharing and data consistency among heterogeneous databases by odbc and tcp / ip technology, and now has been partly implemented
本文在討論有關分散式數據庫理論的基礎上，總結了兩階段提交協議和數據庫復制技術在異構型分散式數據同步中的優缺點，以龍口港信息系統在實現異構分散式數據庫共享過程中遇到的問題為背景，利過odbc和tcp ip技術，對數據庫更新事務進行存儲轉發，進而實現數據同步更新的系統模型，提出了一套網路環境下的分散式數據庫同步機制。 -
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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