Summary
Lambda functions have two stages of invocation- initialisation and runtime. Initialisation is only run when the lambda function is starting without an execution context, which is known as a "cold start".
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The AWS SDK for Java 2.x contains changes that reduce startup latency for AWS Lambda functions, such as using the UrlConnectionHttpClient class or the AwsCrtAsyncHttpClient class.
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Additionally, unused HTTP client dependencies can be removed, and the SDK can be used to reduce the number of HTTP requests to the AWS Common Runtime.
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Summary
Lambda functions have two stages they go through when they're invoked- initialisation and runtime . Initialisation is only run when the lambda function is starting without an execution context, this is what we call a "cold start." After that it will try to reuse the execution context and therefore only run the runtime stage.
AWS Lambda Java Tutorial: Best Practices to Lower Cold Starts | Capital One
capitalone.com
Summary
The AWS SDK for Java 2.x contains changes that reduce startup latency for AWS Lambda functions, such as using the UrlConnectionHttpClient class or the AwsCrtAsyncHttpClient class. Additionally, unused HTTP client dependencies can be removed, and the SDK can be used to reduce the number of HTTP requests to the AWS Common Runtime. Finally, the SDK can be used to reduce the number of HTTP requests to the AWS Common Runtime.
Reducing SDK startup time for AWS Lambda - AWS SDK for Java 2.x
amazon.com
