共查询到20条相似文献，搜索用时 109 毫秒
1.
云计算环境下信息处理会产生海量而又至关重要的中间数据,服务器如果失效会导致中间数据丢失。可靠性保障能力不足不仅是云计算应用推广的主要障碍,而且还促使云计算环境下的容错技术研究成为一个亟待解决的问题。针对目前云计算环境下容错效率低、计算资源浪费等问题,提出基于蚁群算法的动态容错技术,利用任务重新提交、检查点技术和资源执行历史记录等方法,减少任务执行和处理时间,提高云计算成功率。实验结果表明,该技术改进了任务重新提交、检查点和扩展信息素更新公式,在任务分配和重新提交过程中,明显缩短了任务平均执行时间,提高了执行成功率。 相似文献
2.
乐军 《中国远程教育(综合版)》2003,(5):64-66
在目前的网络教学中,基于Windows平台与Web形式的远程教学系统是一个核心系统,本文探讨了以这类系统为基础的远程教学平台的可靠性设计。通过LinkAggregation、VRRP、RAID、MSCS等技术的应用,对所涉及电源系统、网络结构与连接、IP路由、数据存储、服务器集群等系统进行了具有冗余备份与容错性能的设计,使得整个平台系统具有容错功能;并把这种容错策略应用于基于电大在线教学系统的远程教学中。 相似文献
3.
NAT-PT（network address translation-protocol translation）技术是实现纯IPv4与纯IPv6主机之间通信的关键翻译技术，它是解决纯IPv4与纯IPv6网络之间通信的唯一有效手段．文章首先分析NAT-PT服务器的特性；然后．提出拥塞控制技术与接纳控制技术解决NAT-PT服务器处理信息量巨大和拥塞问题；最后，给出容错控制技术来提高系统的稳定性和可靠性． 相似文献
4.
王志刚 《楚雄师范学院学报》2002,17(3):6-10
坚固性是软件可靠性的主要方面之一，并正在成为衡量软件质量的重要指标。基于软件的容错技术是实现软件系统坚固性的主要途径，包含了操作容错、数据容错、软件容错和硬件容错四个方面内容，其本质都是冗余方法，基本手段的故障检测与故障定位、故障包容与故障屏蔽、系统重构与故障恢复等，软件容错的基本方法是多样性设计，其代表性方法是恢复块RB和多版本编程NVP技术。本文同时简要介绍了容错技术的基本思想、方法及相关研究的发展概况。 相似文献
5.
本文讨论了服务器双网卡冗余工作的实现原理,通过一个案例详细介绍了双网卡冗余工作的实现方法。通过双网卡的冗余工作,提高了服务器的容错能力,增强了服务器的可用性和可靠性。 相似文献
6.
柴梦竹 《南昌教育学院学报》2013,(10):195-196
随着需求的不断增长,分布式文件系统的重要性和易用性也渐渐的展现了出来。大凡分布式文件系统都有容错机制来实现数据的恢复以及服务器之间的冗余备份或者动态的调整某个服务器的负载,本文将会讨论一个分布式系统的锁服务器的容错机制。 相似文献
7.
8.
双网冗余技术及其实现 总被引：1，自引：0，他引：1
张伟 《重庆第二师范学院学报》2000,13(4):68-71
采用双网冗余技术来解决总线型局域网（NOVELL网络）的容错问题，可以提高该种局域网的可靠性，由单网构成可靠性很高的容错局域网，即实现双网冗余，主要包括硬件配置、工作方式、网络切换、故障诊断定位、故障网的恢复及网络软件的扩充等多方面问题。 相似文献
9.
10.
张伟 《重庆第二师范学院学报》1999,(1)
本文首先介绍了NOVELL网络几种常见的系统容错技术 ,然后基于总线型局域网提出了采用双网冗余技术可以提高局域网的可靠性 ,有效地实现局域网的容错 相似文献
11.
邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
12.
13.
14.
《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
15.
Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
16.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
17.
YANGShiguo 《重庆大学学报(英文版)》2004,3(1):86-88
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex. 相似文献
18.
Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
19.
20.
GUO Bao-feng Xiao Da-wei 《重庆大学学报(英文版)》2005,4(3):129-133
Using virtual reality for interactive design gives a designer an intuitive vision of a design and allows the designer to achieve a viable, optimal solution in a timely manner. The article discusses the process of making the Virtual Reality System of the Humble Administrator＇s Garden. Translating building data to the Virtual Reality Modeling Language （VRML） is by far unsatisfactory. This creates a challenge for computer designers to do optimization to meet requirements. Five different approaches to optimize models have been presented in this paper. The other methods are to optimize VRML and to reduce the file size. This is done by keeping polygon counts to a minimum and by applying such techniques as object culling and level-ofdetail switching. 相似文献