AWS Lambda Support
AWS Lambda support, troubleshooting and optimization.
Lambda removes servers, not problems. Timeouts, throttling, cold starts and permission errors are the issues we fix most often.
Common Lambda problems we fix
The AWS Lambda issues our engineers see most often, and how we resolve them.
Lambda function timed out (Task timed out after N seconds)
The function exceeded its configured timeout, often waiting on a slow database, an external API, or a VPC connection without a route. We find the slow call, add timeouts and retries, and size memory (which also sets CPU) before raising the limit.
Lambda cold start latency
Cold starts grow with package size, runtime, VPC networking and initialization code. We shrink bundles, lazy-load dependencies, move to faster runtimes, use Provisioned Concurrency or SnapStart where it pays off.
Lambda throttling and TooManyRequestsException
Account or reserved concurrency limits cap parallel executions. We review concurrency, add queues to smooth bursts, set reserved concurrency to protect downstream systems and request limit increases.
Lambda AccessDeniedException and permission errors
The execution role may lack a permission, a resource policy may block the caller, or a VPC endpoint policy may deny the call. We read the exact denied action in CloudTrail and apply least-privilege fixes.
Lambda cost optimization
Over-allocated memory, long runtimes, excessive logging and retries inflate bills. We use power tuning, ARM/Graviton, shorter execution paths and log filters.
Lambda in a VPC cannot reach the internet or AWS services
Functions in private subnets need a NAT gateway or VPC endpoints to reach external or AWS services. We add the right routes or endpoints.
How We Help With Lambda
Senior AWS engineers who explain what they change and why.
What we do
- Performance and cold start tuning
- Event-driven architecture design
- IAM least-privilege review
- Monitoring, alarms and cost control
How it works
- Tell us what is wrong or what you want to improve
- We review with read-only access first
- We fix, explain and document the change
- We hand off with monitoring so it stays fixed
Specialized Lambda support
Deep-dive help for specific Lambda tasks.
AWS Lambda power tuning: the right memory for every functionCut AWS Lambda cost and latency with power tuning. TwinTix runs the tuning, reads the cost and speed curve, and applies the best memory and architecture.
AWS Lambda cold start optimizationReduce AWS Lambda cold start latency. TwinTix measures init time, shrinks packages and applies SnapStart, Provisioned Concurrency or runtime changes where they pay off.
AWS Lambda concurrency and throttling fixesFix AWS Lambda throttling and TooManyRequestsException. TwinTix sets reserved and provisioned concurrency, queue limits and protects downstream systems.
Fixing the Lambda 'Task timed out after N seconds' errorFix AWS Lambda 'Task timed out after N seconds'. TwinTix finds the slow call, fixes timeouts, retries and downstream limits, and sets safe timeout values.
Fixing Lambda functions in a VPC that cannot reach the internetFix AWS Lambda in a VPC that cannot reach the internet, S3, DynamoDB or other AWS services. TwinTix sets up NAT or VPC endpoints and verifies the route.
AWS Lambda Graviton (arm64) migrationMigrate AWS Lambda functions to Graviton arm64 safely. TwinTix checks native dependencies, layers and containers, benchmarks both architectures and rolls out.
Reducing AWS Lambda CloudWatch logging costsCut the CloudWatch Logs bill from AWS Lambda. TwinTix sets log levels, retention, sampling and log classes while keeping the logs you need to debug.
Fixing Lambda AccessDenied and execution role errorsTroubleshoot AWS Lambda AccessDenied and not authorized errors. TwinTix traces the failing call in CloudTrail and fixes execution role, resource and KMS policies.
Frequently Asked Questions
How do I fix a Lambda timeout?
Find which call is slow using logs and X-Ray, fix or cap it, and increase memory if the function is CPU-bound. Raising the timeout alone only hides the problem.
How can I reduce Lambda cold starts?
Keep packages small, avoid heavy initialization, choose a fast runtime, and use Provisioned Concurrency or SnapStart for latency-sensitive paths.
Is Lambda cheaper than EC2?
For spiky or low-volume workloads, usually yes. For steady high utilization, containers or instances can cost less. We compare the two for your traffic.
Need Help With AWS Lambda?
Schedule an appointment. Describe the problem and we will tell you the fastest safe way to fix it.
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