Lab - Design and Manage Pub/Sub Messaging with Amazon Simple Notification Service (SNS)|Task 4 | Analyze SNS Performance Using Amazon CloudWatch |latest updated version

Lab - Design and Manage Pub/Sub
Messaging with Amazon Simple
Notification Service (SNS)
Task 4: Analyze SNS Performance Using Amazon CloudWatch


Step 1: Access SNS Metrics in CloudWatch
Amazon SNS automatically publishes metrics to CloudWatch. Key metrics
include:
Metric Purpose

NumberOfMessagesPublis
Total messages published to the topic.
hed

NumberOfNotificationsDeli
Messages successfully delivered to subscribers.
vered

NumberOfNotificationsFail Messages that failed delivery (e.g., invalid
ed endpoints, throttling).

Percentage of SMS messages delivered
SMSSuccessRate
successfully.

SMSMonthToDateSpentUS
Total SMS costs incurred in the current month.
D

Number of attempts to deliver messages (useful
DeliveryAttempts
for HTTP/S retries).
How to View Metrics:
1. AWS Console:
o Go to CloudWatch > Metrics > All metrics > SNS.
o Filter by Topic Metrics or Platform Application Metrics (for
SMS).
2. AWS CLI:
bash
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, aws cloudwatch get-metric-statistics \
--namespace AWS/SNS \
--metric-name NumberOfNotificationsDelivered \
--dimensions Name=TopicName,Value=MyTopic \
--start-time 2023-10-01T00:00:00Z \
--end-time 2023-10-01T23:59:59Z \
--period 3600 \
--statistics Sum



Step 2: Set Up CloudWatch Alarms
Create alarms to detect anomalies or failures:
Example 1: Alarm for Failed Deliveries
bash
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aws cloudwatch put-metric-alarm \
--alarm-name "SNS-Delivery-Failures" \
--metric-name NumberOfNotificationsFailed \
--namespace AWS/SNS \
--statistic Sum \
--period 300 \
--threshold 1 \
--comparison-operator GreaterThanOrEqualToThreshold \
--evaluation-periods 1 \
--alarm-actions "arn:aws:sns:us-east-1:123456789012:AlertTopic"
Example 2: SMS Cost Alarm
Trigger if SMS costs exceed $500 in a month:
bash
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