cloud taekwon 2015 - 비트패킹컴퍼니 사례 공유
TRANSCRIPT
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정민영
CTOTHE BEATPACKING COMPANY
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BEAT 소개
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국내최초무료라디오서비스
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숫자
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2014. 4월비트라디오출시
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2014. 4월비트라디오출시3~400% 성장/월
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2014. 4월비트라디오출시2~300% 성장/월한달에 100만+씩성장중
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30만+명/일 5분이상청취
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30만+명/일 5분이상청취35만+시간/일
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30만+명/일 5분이상청취35만+시간/일9백만+곡재생/일
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30만+명/일 5분이상청취35만+시간/일9백만+곡재생/일5백만+곡정산/일
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폭주성장에대처하는스타트업의자세
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부제: 최대한사람이필요없는인프라만들기
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부제: 최대한사람이필요없는인프라만들기그리고, 최대한저렴하게버텨보기
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어떻게하면인프라를
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어떻게하면인프라를안정적으로
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어떻게하면인프라를안정적으로유연하면서도
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어떻게하면인프라를안정적으로유연하면서도개발자를아껴가며(!)
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어떻게하면인프라를안정적으로유연하면서도개발자를아껴가며(!)
돈도절약할까?
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Elastic Compute Cloud
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서버에대한기존의관점
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PEAK
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서버에대한 21세기클라우드의관점
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3번강조해도부족한 AutoScale
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Instance Hour
= 인스턴스사용시간= 과금단위
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c3.xlarge * 4대 * 61분= 2 Instance Hour * 4
= 8 Instance Hour
= 2.04 USD / Hour
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28만원/일 VS 12만원/일
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Peak를처리하기위해 40대가필요하다면,
= 40 Instance Hour * 24
= 960 Instance Hour / Day
= 244.8 USD / Hour
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Peak를처리하기위해 40대가필요하다면,
= 40 Instance Hour * 9
+ 5 Instance Hour * 15
= 435 Instance Hour / Day
= 110.925 USD / Hour
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아무리잘나가는서비스도,
항상 PEAK일수는없는법
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원하는조건에맞춰서(Policy)
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원하는조건에맞춰서(Policy)
지정한설정값으로(Launch Configuration)
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원하는조건에맞춰서(Policy)
지정한설정값으로(Launch Configuration)
인스턴스를자동으로생성/삭제
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SPOT Instance
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SPOT Instance
AWS의여유자원을경매를통해이용
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0 0.05 0.1 0.15 0.2 0.25 0.3
On Demand
Reserved 1yr
Spot
C3.xlarge 가격비교
USD
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SPOT Instance
단, 인스턴스생명주기를통제할수없음= 언제든빼앗길수있음
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6:00 9:00 12:00 15:00 18:00 21:00 0:00
On-Demand Spot Load
Spot : 5분간평균 CPU이용률 40%
OD : 5분간평균 CPU이용률 60%
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6:00 9:00 12:00 15:00 18:00 21:00 0:00
On-Demand Spot Load
Spot 확보에실패한경우On-Demand가 Scale-Up
Spot 확보에따른On-Demand Scale-Down
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DynamoDB
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처리량만결정하면알아서Scale 하는 NoSQL DB
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처리량= 필요한초당읽기 (/4kb)
= 필요한초당쓰기 (/1kb)
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평균 2kb인항목을 100번쓰고읽는다면= 100(Read) * 1 = 100
= 100(Write) * 2 = 200
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요청수와크기에따라서자동으로 Scale
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요청수와크기에따라서자동으로 Scale
= 데이터크기와트래픽증가에유연한 DB
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두가지종류의인덱스지원
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Local Secondary Index
= Alternate Range Key
= 특정 Hash Key의결과를필터링= 특정 Hash Key에서다른정렬
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Global Secondary Index
= Alternate Key
= 테이블의 Hash Key와무관= 별도의읽기&쓰기처리량요구
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다양한데이터타입지원
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다양한데이터타입지원= String, Number, Binary
= String Set, Number Set, Binary Set
= JSON – Bool, Null, List, Map
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고도화된 API 지원
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고도화된 API 지원= 수정&조건표현식= Atomic
= Batch
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파티션당 Read
= 5000/3 = 1666.67
파티션당 Write
= 500/3 = 166.67
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Hash Key 에의해파티션이결정= Hash Key 선정이매우중요= 잘분산되는키를선택하는게중요
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AGAIN,
아무리잘나가는서비스도,
항상 PEAK일수는없는법.
DB도유연할수없을까?
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부하에따른좀더능동적인처리량조정
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dynamo-autoscale
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UpdateTable
= 읽기/쓰기처리요구량실시간조정= 올리는건하루에몇번이고가능= 내리는건 4회/24시간제하
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RECAP
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= API, API, API
= 부하수준에맞춰유연하게사용= AWS의다양한가격정책을적극활용
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AWS 한국사용자모임
http://awskr.org
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http://jobs.beatpacking.com
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감사합니다.