RAIN: Always on Data Warehousing

机译：RAIN：始终在数据仓库中

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The Redundant Arrays of Inexpensive DWS Nodes (RAIN) technique is a node-level data replication approach that introduces failover capabilities to DWS (Data Warehouse Striping) clusters. RAIN is based on the selective replication of fact tables' data across the cluster nodes and endows DWS clusters with the capability of providing query answers even when one or more nodes are unavailable. Two distinct replication modes are supported: simple redundancy (RAIN-O) and stripped redundancy (RAIN-S). In this demo we are going to show a DWS cluster using the RAIN technique, focusing on the execution of queries in the presence of nodes failures and on the process of recovering failed nodes.

机译：廉价DWS节点冗余阵列（RAIN）技术是一种节点级数据复制方法，可将故障转移功能引入DWS（数据仓库条带化）群集。 RAIN基于跨集群节点的事实表数据的选择性复制，并使DWS集群即使在一个或多个节点不可用时也能够提供查询答案。支持两种不同的复制模式：简单冗余（RAIN-O）和剥离冗余（RAIN-S）。在本演示中，我们将展示使用RAIN技术的DWS集群，重点是在出现节点故障的情况下执行查询以及恢复故障节点的过程。

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来源
《Database Systems for Advanced Applications》|2008年|P.678-681|共4页
会议地点 New Delhi(IN);New Delhi(IN)
作者
Jorge Vieira; Marco Vieira; Marco Costa; Henrique Madeira;
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原文格式 PDF
正文语种 eng
中图分类 TP311.13;
关键词
data warehousing; redundancy; replication; recovery; availability;

机译：数据仓库;冗余;复制;恢复;可用性;

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RAIN: Always on Data Warehousing

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