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一种在数据网格中的快照管理的量化分析方法
引用本文:党德玉,张雪峰,白广超.一种在数据网格中的快照管理的量化分析方法[J].东北电力学院学报,2006,26(1):35-39.
作者姓名:党德玉  张雪峰  白广超
作者单位:东北电力大学信息工程学院 吉林吉林132012
摘    要:从数据库的观点看,在执行单一查询前进行复制数据集是容易实现的,但查询处理器指派一次查询给那些没有充分操作和存储合适副本的结点时,从而引起在同步机制中副本快照经常过时和副本定位时带来昂贵的网络开销。讨论一种在全局数据网格中多个结点的非一致性及快照管理的量化分析方法。

关 键 词:Oracle  10g  数据网格  副本快照  关键切点  非一致性  快照管理
文章编号:1005-2992(2006)01-0035-05
收稿时间:2005-10-25
修稿时间:2005年10月25

A quantification Approach of Snapshot Management in Data Grids
DANG De-yu,ZHANG Xue-feng,BAI Guang-chao.A quantification Approach of Snapshot Management in Data Grids[J].Journal of Northeast China Institute of Electric Power Engineering,2006,26(1):35-39.
Authors:DANG De-yu  ZHANG Xue-feng  BAI Guang-chao
Affiliation:Northeast China Institute of Electric Power Engineering Jilin 132012
Abstract:From a database perspective,it is advisable to replicate data sets at different nodes in the data grid before executing a single query,but the query processor assigns a query to those nodes,which do not operate at full capacity and which have stored the appropriate replica.Therefore,the replica may usually lead to outdated replica snapshot in a synchronization mechanism and bring out expensive network overhead in locating replica.The paper focuses on the quantification of the inconsistency and the snapshot management at non-individual members of a global data grid.
Keywords:Replica Snapshot  Data grid  Historic cut  Inconsistency  Snapshot management
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