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AWS Lambda has significantly reduced CloudWatch Logs pricing from $0.50/GB to $0.05/GB after exceeding 50TB of log ingestion. This price cut benefits enterprises and high-volume users who rely heavily on CloudWatch for monitoring and logging.
You Should Know:
1. How to Optimize CloudWatch Logs Costs
To take advantage of this pricing change, ensure your logs are efficiently structured. Use the following AWS CLI commands to manage logs:
List log groups aws logs describe-log-groups Set retention policy (e.g., 30 days) aws logs put-retention-policy --log-group-name "/aws/lambda/my-function" --retention-in-days 30 Export logs to S3 for long-term storage (cheaper than CloudWatch) aws logs create-export-task --task-name "ExportLogs" --log-group-name "/aws/lambda/my-function" --from 1625097600000 --to 1625184000000 --destination "my-s3-bucket" --destination-prefix "logs/"
2. Filtering Unnecessary Logs
Reduce costs by filtering out debug logs or irrelevant data:
Use subscription filters to send only ERROR logs to CloudWatch aws logs put-subscription-filter \ --log-group-name "/aws/lambda/my-function" \ --filter-name "ErrorFilter" \ --filter-pattern "ERROR" \ --destination-arn "arn:aws:logs:us-east-1:123456789012:destination:MyKinesisStream"
3. Automate Log Compression
Leverage AWS Lambda to compress logs before storage:
import boto3
import gzip
def lambda_handler(event, context):
s3 = boto3.client('s3')
logs = event['awslogs']['data']
compressed = gzip.compress(logs.encode())
s3.put_object(Bucket="my-compressed-logs", Key="logs.gz", Body=compressed)
- Monitor Log Costs with AWS Cost Explorer
Track CloudWatch expenses using:
aws ce get-cost-and-usage \
--time-period Start=2023-01-01,End=2023-01-31 \
--granularity MONTHLY \
--metrics "UnblendedCost" \
--filter '{"Dimensions": {"Key": "SERVICE", "Values": ["AmazonCloudWatch"]}}'
What Undercode Say:
AWS’s price cut is a strategic move to retain high-volume users. However, optimizing logs via retention policies, filtering, and compression remains crucial. Enterprises should also consider third-party log solutions like Datadog or Elasticsearch for cost-efficient analytics.
Expected Output:
- Reduced CloudWatch costs for high-volume users.
- Better log management via AWS CLI and automation.
- Increased adoption of log optimization techniques.
Video:
References:
Reported By: Aaron Stuyvenberg – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅


