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ƶϵҎ(gu)ɔU(ku)

2015-03-20 09:33:18   ߣithome d   Դithome   u(png)Փ0 c(din)


Ҫ@ƶ˄(dng)B(ti)`Ҏ(gu)ģU(ku)ԣֻǰϵy(tng)ŵψ(zh)оܵõA(y)Ч(yng)óʽ(zh)еķʽҲ{(dio)

ǰ҂Մ^ġҎ(gu)ɔU(ku)ԣscalabilityһ(g)ϵy(tng)Л]Ҏ(gu)ģɔU(ku)҂IJdžһӋ(j)㹝(ji)c(din)ܶ죬Ǯ(dng)Ӌ(j)YԴC(j)lr(sh)ܷͨ^Ӌ(j)YԴQȡҎ(gu)ģ̎

(dng)ڽQҎ(gu)ģӋ(j)㆖}r(sh)˂P(gun)ܷͨ^ŷl(ch)gķ(w)Ҏ(gu)ģچһŷϿԈ(zh)ж

ҪõҎ(gu)ɔU(ku)һ׵ԏƽ_(ti)@֧֣Ӌ(j)Yϴȡ(du)(yng)óʽf(hu)S@ҲһЩ^ƶӋ(j)ƽ_(ti)

һ棬҂ՄˡƶӋ(j)ƽ_(ti)ǽ(gu)ڡƶӋ(j)ƽ_(ti)ϵđ(yng)óʽͱȻ߂Ҏ(gu)ģɔU(ku)

磬(du)ڑ(yng)óʽfпǽ(gu)IaaSInfrastructure as a ServiceČӴ֮ϣҲPaaSPlatform as a ServiceӴl(f)չ

ͨIaaSϵđ(yng)óʽoֱӵõҎ(gu)ɔU(ku)ƽ_(ti)ͨṩIJֻǡSr(sh)(dng)B(ti)õYԴAWSEC2\(yn)Б(yng)óʽܱC(yng)óʽҎ(gu)ɔU(ku)ֻҪŷl(ch)gr(sh)EC2܉Mܵ؄(dng)B(ti)MҪ

fǰё(yng)óʽˡƶˡͱȻ@Ҏ(gu)ɔU(ku)(dng)ֻ IaaS ƽ_(ti)_l(f)r(sh)Ƿ߂Ҏ(gu)ģɔU(ku)fȡQϵy(tng)ܘ(gu)ԡ

^(dng)PaaS_l(f)r(sh)rͬPaaSƽ_(ti)(hu)̎SҎ(gu)ɔU(ku)P(gun)Ć}GoogleApp EngineṩYϴȡͲͬڂy(tng)P(gun)“(lin)ʽYώ죬BigTable A(ch)IJģʽ@ʹ̎YϵĴȡApp Engine֮ϵđ(yng)óʽȻȻ߂õҎ(gu)ɔU(ku)

ˣһ(g)T˸Ҏ(gu)ģO(sh)Ӌ(j)ƽ_(ti)_l(f)(du)ҪõҎ(gu)ģɔU(ku)Եđ(yng)óʽ_l(f)߁fʡȥٵ Hadoop һ(g)˴Ҏ(gu)ģӋ(j)O(sh)Ӌ(j)ƽ_(ti)^MapReduceӋ(j)㷽ʽԌӋ(j)ɢ(g)ṩӋ(j)ęC(j)֮ϱC(j)֮ڸ̵ĕr(sh)g(ni)QҪQӋ(j)㆖}ԏͶõYԴ(sh)ͶQ磬(dng)øŷܸĽQӋ(j)㆖}A(y)㲻ô֣Ҳʹ^ٵęC(j)M(fi)^ĕr(sh)g@Ҏ(gu)ɔU(ku)Եx

ɢʽӋ(j)˼

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ef㌢đ(yng)óʽɶݣͬr(sh)ݔಿC(j)֮ψ(zh)@ׂ(g)ʽ֮gҪͨҲǽQY֮gҪͬsynchronizationڲͬC(j)ϵijʽ֮gҪȴض^m(x)(zh)Уô@ӵđ(yng)óʽͲҊþҎ(gu)ɔU(ku)ԣ?yn)ȴĭh(hun)(ji)(hu)Ҏ(gu)ģoSӋ(j)YԴͶLء

@fʹԇӋ(j)ֳɞڶಿC(j)ψ(zh)УҲҊÿԫ@ö౶ЧܸM(jn)ܿ?yn)?j)ģʽHܫ@ٔ(sh)ЧܳLSҎ(gu)ģ󣬳LıβӋ(j)㹤ʹɢಿͬęC(j)Եõ(du)(yng)Ӌ(j)Ҏ(gu)ģͳ@ĺh}

ͨ^ֶ֮ķʽ}_S(g)С}(g)(g)ͽQ}y

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҂\(yn)áֶ֮ķʽQ}ͺ׵õҎ(gu)ģɔU(ku)?yn)҂ԌԭʼĆ}ɂ(g)^СҎ(gu)ģĆ}Ȼ@Щ}քe÷ڲͬęC(j)ϽQ?yn)Q@ЩС}Ӌ(j)ǻચ(d)֮gҲҪͨԣ(dng)\(yn)õęC(j)(sh)׃r(sh)ͿԌ}Ҏ(gu)ģĸСʹچһC(j)ϽQٶȸʹwQĕr(sh)gԿs̡ MapReduce Ǵ˷Nֶ֮Ľ}Ӌ(j)ģʽ(dng)\(yn)MapReducer(sh)Դ˷Nʽ˼Q}ķ

(sh)ʽʽO(sh)Ӌ(j)_ʼ

һҲ(hu)l(f)F(xin)^(sh)ʽfunctionalijʽO(sh)Ӌ(j)ʽ@Nֶ֮ķɢʽӋ(j)ģʽ_ʼܚgӭ(sh)ʽijʽZѽ(jng)ЎʮĚvʷ Lisp ijʽZҪǑ(yng)˹ǻ۵I(lng)ǣʲô@(g)(yng)I(lng)

(sh)ʽijʽZһЩԣʽǛ]РB(ti)statelessÿκʽֵ֮u(png)f(zh)Уr(sh)Ǜ]иõģside effect 

^ĸãǺʽ(zh)Еr(sh)Ҫ(yng)ԓ_(d)ɵ֮߀һЩٵЧ˼丱ҪãǺʽĻ؂ֵtdz˻؂ʽֵ֮߀ͬr(sh)׃?ni)׃?sh)ֵʽĻ؂ֵ˱ݔ?yn)?sh)Ӱ֮߀ͬr(sh)ĠB(ti)ȫ׃(sh)Ӱ푕r(sh)(hu)a(chn)S벻ĽY(ji)

҂Ĕ(sh)W(xu)ϵĺ(sh)ĽǶȁfx ֵ֮ȫȡQ x ]κ f (ni)ĠB(ti)ⲿĠB(ti) x ͬr(sh) fx ֵ֮ͬ^ĺ(sh)ʽʽO(sh)Ӌ(j)ʽ˷Nȡ]РB(ti)Ҳ]иá

@N֮܌(du)ɢʽӋ(j)㎧̎?yn)@ӵ֮Ӌ(j)㹤(hu)׷䵽ͬęC(j)ȥӋ(j)电(sh)W(xu)ĺ(sh)һֻҪoͬݔֵһ(hu)ͬݔֵӋ(j)㹤֮gԽՓDzC(j)ʲôr(sh)gc(din)(hu)Ӱ푵Ӌ(j)ĽY(ji)(dng)ԡֶ֮ԭtӋ(j)㹤M(jn)зɢʽӋ(j)r(sh)ײ⹤׺ϳӋ(j)Y(ji)ԳɞĽY(ji)

ͨ^һ(g)AƶӋ(j)ƽ_(ti)ԼӋ(j)ģʽ䌍(sh)׌ʽO(sh)Ӌ(j)߸׵ȡҎ(gu)ɔU(ku)ԡĬF(xin)ڵڅ݁(sh)ʽO(sh)Ӌ(j)ʽ(yng)ԓ߀(hu)кһ

P(gun)x

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