A database client manages a transaction including two or more queries. A transaction analyzer checks if a transaction can be processed by more than one query processor. A query processor optimizer locates the optimum query processor for each query in the transaction based on workload of each ...
1. 资料库负载平衡功能 Citrix NetScaler 9.3 资料库负载平衡功能(database load balancing),业界首创图形化介面设定功能,可以根据使用者的需求服务类 …www.sysage.com.tw|基于8个网页 2. 数据库负载均衡 ...derated Database Design)或数据库负载均衡(Database Load Balancing)。www.cnw.com.cn|基于4个网页 ...
Load balancing in a parallel database system is performed using multi-reordering, in which a sequence of multiple processors (two, three, or more) that have small average load (for example, the smallest of any such sequence) is selected ... WS Rishel,RB Rishel,DA Taylor - US 被引量: ...
Load balancing also requires that the configured hostsalwayspoint to the primary, even after a database failover. Furthermore, the additional hosts to balance load among mustalwayspoint to secondary databases. This means that you should put a load balance in front of every database, and have G...
新创建一个邮箱试试,发现报告这个错误: Load balancing failed to find a valid mailbox database." 但是如果选择具体一个数据库没有问题, 查找后原因如下: 1)选择更新exchange sp1的RU6 2)检查数据库是否有dismount 3)邮件数据库服务器没有安装,不过我想这个应该出现这个错误吧:)...
In this paper, we propose a Data Placement Advisor (DPA) and load balancing strategies for multi-tiered database systems. Built on top of the MQTA, DPA recommends MQTs and advises placement strategies for minimizing the response time for a query workload. To demonstrate the benefit of the ...
To address these issues, a join algorithm for hypercube computers which includes dynamic load balancing capabilities to minimize the effect of skewness in tuple distribution is proposed. Simulation results indicate that the scheme provides significant improvement over the bucket-based join strategy. In ...
Load balancing architectures can be used to solve overloading problems on web sites. Recently, most of the contents of web pages are retrieved from a database. Thus, the arrangement of the database server in a load balancing architecture is one of the mo
The aim of the paper is to design and implement an approach that provides high availability and load balancing to PostgreSQL databases. Shared nothing architecture and replicated centralized middleware architecture were selected in order to achieve data replication and load balancing among database servers...
Zero downtime – Having a load balancer hides non functioning databases. Servers can be removed from traffic for maintenance, without impacting applications. So in many cases, application downtime can be avoided. Load balancing has a prerequisite – that the database servers are somewhat synchronized...