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기존 url_short_stack.py 파일을 수정합니다. 아래에 scv@studydev.com 의 이메일 주소는 본인의 알림 받을 수 있는 Email로 변경합니다.
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import os
from aws_cdk import core, aws_dynamodb, aws_lambda, aws_apigateway, aws_ecs, aws_ec2
from traffic import Traffic
from cdk_watchful import Watchful
# we need default values here since aws-cdk-examples build synthesizes the app
ACCOUNT= os.environ['CDK_DEFAULT_ACCOUNT']
REGION = os.environ['CDK_DEFAULT_REGION']
VPC_ID = os.environ.get('TESTENV_VPC_ID', 'vpc-0e3593e52a4149549')
AWS_ENV = core.Environment(account=ACCOUNT, region=REGION)
class UrlShortStack(core.Stack):
def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
super().__init__(scope, id, env=AWS_ENV, **kwargs)
# The code that defines your stack goes here
table = aws_dynamodb.Table(self, "mapping",
partition_key = aws_dynamodb.Attribute(name="id",type=aws_dynamodb.AttributeType.STRING))
function = aws_lambda.Function(self, "backend",
runtime=aws_lambda.Runtime.PYTHON_3_7,
handler="handler.main",
code=aws_lambda.Code.asset("./lambda"))
table.grant_read_write_data(function)
function.add_environment("TABLE_NAME", table.table_name)
api = aws_apigateway.LambdaRestApi(self, "api", handler=function)
wf = Watchful(self, 'monitoring', alarm_email='scv@studydev.com')
wf.watch_scope(self)
class TrafficStack(core.Stack):
def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
super().__init__(scope, id, env=AWS_ENV, **kwargs)
# lookup our pre-created VPC by ID
vpc_env = aws_ec2.Vpc.from_lookup(self, "vpc",
vpc_id=VPC_ID)
Traffic(self, 'TestTraffic',
vpc= vpc_env,
url="https://7vzqf6htub.execute-api.ap-southeast-1.amazonaws.com/prod/2a3c26e0",
tps=10)
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cdk deploy "*" |
하단의 모니터링을 위한 CloudWatch 대쉬보드 URL이 생성되는 것을 볼 수 있습니다. 해당 링크를 클릭합니다.
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트래픽을 증가시켜서 DynamoDB의 RCU를 넘기도록 설정합니다. TPS를 10에서 15로 변경하여 트래픽을 절반 더 늘리고, 5분 정도 기다립니다.
| 코드 블럭 | ||||||||
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import os
from aws_cdk import core, aws_dynamodb, aws_lambda, aws_apigateway, aws_ecs, aws_ec2
from traffic import Traffic
from cdk_watchful import Watchful
# we need default values here since aws-cdk-examples build synthesizes the app
ACCOUNT= os.environ['CDK_DEFAULT_ACCOUNT']
REGION = os.environ['CDK_DEFAULT_REGION']
VPC_ID = os.environ.get('TESTENV_VPC_ID', 'vpc-0e3593e52a4149549')
AWS_ENV = core.Environment(account=ACCOUNT, region=REGION)
class UrlShortStack(core.Stack):
def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
super().__init__(scope, id, env=AWS_ENV, **kwargs)
# The code that defines your stack goes here
table = aws_dynamodb.Table(self, "mapping",
partition_key = aws_dynamodb.Attribute(name="id",type=aws_dynamodb.AttributeType.STRING))
function = aws_lambda.Function(self, "backend",
runtime=aws_lambda.Runtime.PYTHON_3_7,
handler="handler.main",
code=aws_lambda.Code.asset("./lambda"))
table.grant_read_write_data(function)
function.add_environment("TABLE_NAME", table.table_name)
api = aws_apigateway.LambdaRestApi(self, "api", handler=function)
wf = Watchful(self, 'monitoring', alarm_email='scv@studydev.com')
wf.watch_scope(self)
class TrafficStack(core.Stack):
def __init__(self, scope: core.Construct, id: str, **kwargs) -> None:
super().__init__(scope, id, env=AWS_ENV, **kwargs)
# lookup our pre-created VPC by ID
vpc_env = aws_ec2.Vpc.from_lookup(self, "vpc",
vpc_id=VPC_ID)
Traffic(self, 'TestTraffic',
vpc= vpc_env,
url="https://7vzqf6htub.execute-api.ap-southeast-1.amazonaws.com/prod/2a3c26e0",
tps=15)
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cdk deploy "*" |
DynamoDB Console에서도 동일한 메트릭 정보를 확인할 수 있습니다. RCU가 부족한 현상이 발생합니다.
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