全部博文
-
编辑 删除
ActiveMQ问题分析和解决
1）KahaDb和AMQ Message Store两种持久方式如何选择？官方：From 5.3 onwards - we recommend you use KahaDB - which offers improved scalability and recoverability over the AMQ Message Store.The AMQ Message Store which although faster than KahaDB - does not scales as well as KahaDB and rec...
-
编辑 删除
Oracle并行操作——并行查询（Parallel Query）
“Parallel Query option is essentially nonscalable”——《Practical Oracle8i：Building Efficient Database》 Oracle的并行操作特性，本质上就是强行榨取除数据库服务器空闲资源（主要是CPU资源...
