LocalStack insights

Open SourceVersions: [2026.03.0]55 metrics

OpenTelemetry·Native·

Docker healthcheck fails due to missing virtualenv binary path

localstack.system.up

20d ago▸

Terraform apply fails with connection refused when LocalStack runs in separate Docker container

localstack.s3.request.count localstack.service.errors localstack.http.server.active_requests

tech-reader.blog

7mo ago▸

CloudWatch alarm metric evaluation varies from AWS behavior

localstack.cloudwatch.alarms

10mo ago▸

Lambda execution environment timeout during startup with boto3 and hot-reload

localstack.lambda.cold_start.duration localstack.lambda.errors

1y ago▸

Incorrect LAMBDA_DOCKER_NETWORK prevents Lambda-to-LocalStack connectivity

1y ago▸

Lambda container with empty startup logs indicates network isolationwarning

1y ago▸

API Gateway WebSocket body parameters not mapped to integration headerswarning

localstack.apigateway.integration.latency localstack.apigateway.request.count

1y ago▸

CloudWatch Logs StartQuery API fails with TypeError when called from Grafanawarning

localstack.service.errors

1y ago▸

JWT authorizer causes unexplained latency overhead in HTTP API Gatewaywarning

localstack.apigateway.integration.latency localstack.apigateway.request.duration

1y ago▸

HTTP API Gateway lacks X-Ray tracing support for latency analysisinfo

1y ago▸

Usage counters grow unbounded causing memory leak in long sessionswarning

1y ago▸

Usage analytics not sent due to missing hook registrationinfo

1y ago▸

Counter refactor trades minor performance for memory efficiencyinfo

1y ago▸

Composite alarm creation fails when child alarms don't exist

localstack.cloudwatch.alarms

1y ago▸

Composite alarm rules require ARN format, not alarm names

1y ago▸

Amazon CloudWatch

Composite alarm rules with unsupported expressions are silently ignored

1y ago▸

Composite alarm nesting not supported

1y ago▸

Composite alarm actions limited to SNS topic targets

localstack.sns.messages.published localstack.sns.notifications.failed

1y ago▸

API Gateway returns 500 when proxying to ALB on port 80critical

localstack.service.errors localstack.apigateway.integration.latency localstack.apigateway.request.count

1y ago▸

CloudWatch get-metric-data with Expression parameter fails with KeyError

localstack.service.errors localstack.cloudwatch.metrics.put

1y ago▸

Missing API Gateway GetUsage endpoint prevents local testingwarning

localstack.apigateway.request.count localstack.service.errors

1y ago▸

CloudWatch Alarm creation fails with colon in alarm name

localstack.cloudwatch.alarms

1y ago▸

LocalStack health check timeout causes false unhealthy status

localstack.system.up localstack.http.server.request.duration localstack.service.operation.duration

1y ago▸

Dimension mismatch causes empty CloudWatch metric query results

localstack.cloudwatch.metrics.put

1y ago▸

CloudWatch get-metric-data fails with list index error when querying 10+ metricswarning

1y ago▸

Lambda container cannot reach LocalStack S3 during sam local invoke

localstack.lambda.errors localstack.s3.request.count

1y ago▸

sam local does not support LocalStack S3 integration

1y ago▸

LocalStack ALB listener port override breaks Terraform idempotencycritical

1y ago▸

LocalStack ECS deployment parameters drift from template values

1y ago▸

LocalStack Terraform state drift requires complete infrastructure teardown

1y ago▸