Download - WebElement #22: Peter Slivka - Úvod do AWS
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škálovateľnoť
manažovateľnosť
AWS
Heroku
VS
hosting
server
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cena
výkon
AWS Heroku
VS
hosting
server
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Scale on demand
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Príbeh sli.do
● Začali sme na virtual serveri
● Pri prvom väčšom evente sme šli do kolien
● Prešli sme na AWS
● Znova sme šli do kolien. Live.
● Naučili sme sa horizontálne škálovať :)
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Results
● Meraj a kontroluj
● Škáluj
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AWS
33 services spanning
compute, storage, database
and application management
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8 geographical 'Regions'
with multiple availability zones
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Benefity
● Na začiatok stačí 0,- €. Pay as you go
● Netreba odhadovať kapacitu
● Rýchly setup
● Rýchlosť
● Za pár minút beží všetko globálne
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Ako začať škálovať
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#1 Rozbiť aplikáciu na jednotlivé
služby
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#2 Očakávať výpadok
« Everything fails
all the time »
Werner Vogels
CTO of Amazon
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#2 Očakávať výpadok
● Aplikácia by mala bežať aj keď hardware na
ktorom beží zlyhá, odstráni sa, alebo
vymení
● AVOID SINGLE POINTS OF FAILURE
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●#3 Využiť viac zón
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#4 Škálovať
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Pricing
● Využívať len to, čo naozaj treba
– Fit your application to the resource
– Fit the resource to your application
● Správne využívať služby
– S3 distribuje statický obsah
– Glacier archivuje
● Merať
● Škálovať
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Pricing
● Pri rezervácii inštancie sa platí menej
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Pricing
● ...a existujú aj SPOT inštancie
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Vďaka :-)