共查询到20条相似文献，搜索用时 484 毫秒
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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
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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
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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
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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
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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
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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
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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
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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
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《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
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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
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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Rajesh Kanoi 《海外英语》2007,(1):52
Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer. 相似文献
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正A One day a pig went to the stable(马棚)to see his good friend,an oldhorse,and was going to stay there forthenight.Night came and it was time forsleep.The pig went into the straw heap(稻草堆)and lay comfortably.A longtime passed,but the horse was stillstanding there and did not move.Thepig asked the horse why he did not go tosleep."Standing like this is the begin-ning ofsleeping,"answered the horse. 相似文献
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《今日中学生》2014,(9)
正1.Any fool can count the seeds in an apple.Only God can count all the apples in one seed.2.Happy families are all alike;every unhappy family is unhappy in its own way.3.Memories are the key not to the past,but to the future.4.Sometimes in the dark you see what you want to see.5.There is a great difference between 相似文献
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《重庆大学学报(英文版)》2014,(2)
正Scope and Policy The Journal of Chongqing University-English Edition(JCQU-E)is a peerreviewed journal publishing research articles in multiple disciplines of science and technology,covering civil and environmental engineering,chemical engineering,biotechnology,mechanical and electrical engineering,computer and data processing,mining,metallurgy,materials science,and interdisciplines thereof. 相似文献