CAJ | 학술논문

数据库集群中各节点均配有内存，然而在运行过程中，有的节点存在大量的内存资源闲置，不仅造成内存资源的极大浪费，而且严重降低了系统运行效率。为此，研究分别基于虚拟机、共享存储和无共享结构，提出优化内存使用率的方法，并着重研究了“内存转移”机制，即如何将节点上的空闲内存转移到需要内存的其他节点上。最后使用 vb 编写的“档案管理系统”远程连接平台进行测试，通过对比实验数据验证“内存转移”在提高内存使用率方面的优越性，同时对系统的高可用性给予实践证明。
수거고집군중각절점균배유내존，연이재운행과정중，유적절점존재대량적내존자원한치，불부조성내존자원적겁대낭비，이차엄중강저료계통운행효솔。위차，연구분별기우허의궤、공향존저화무공향결구，제출우화내존사용솔적방법，병착중연구료“내존전이”궤제，즉여하장절점상적공한내존전이도수요내존적기타절점상。최후사용 vb 편사적“당안관리계통”원정련접평태진행측시，통과대비실험수거험증“내존전이”재제고내존사용솔방면적우월성，동시대계통적고가용성급여실천증명。
In database failover cluster,each node is equipped with memory,however,a lot of memory resources are idle in some nodes during operation,so the memory resources are wasted and the efficiency of the system is reduced.For this reason,respectively based on the virtual machine,shared memory and unshared structure,this paper proposes solutions to optimize memory usage and focuses on the memory transfer mechanism,i.e.how to transfer the free memory on the node to the node memory needed.Finally,it is remote -tested by archives management system,written by VB language.The experimental result shows that it improves memory usage by mean of memory transfer and performs high availability.