Archive of "AWS"

Lambda Architecture: 5 questions and answers by Lightbends’ Stavros Kontopoulos

Trivento Summercamp 2016 was all about Fast Data. Stavros Kontopoulos, R&D Polyglot Software Engineer at Lightbend, reviewed the design problem for big data applications that lambda architecture tries to solve with a happy few masterclass participants in the morning. He also answered some questions  for those who are interested but couldn’t attend the masterclass. 1. What is the difference between…

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Write a Custom Protocol for Gatling

Write a Custom Protocol for Gatling Gatling is a great open source load testing framework. Out of the box it has great support for HTTP. There is also support for JMS, JDBC and Redis, but I’ve never tried these. A lot of services which are written use HTTP as their external interface. Therefore HTTP support…

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AWS Lambda inside insight (part 3)

AWS Lambda part 3: Call Lambda via SDK Lambda Invocation without API Gateway During our previous blog post (http://www.trivento.io/aws-lambda-inside-insight-part-2/) in this series we saw strange response spikes during the invocation of our Lambda function. Our conclusion was that API Gateway caused those spikes. This week we’re invoking our Lambda function without AWS API Gateway to…

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AWS Lambda inside insight (part 2)

AWS Lambda part 2: API Gateway playing tricks? Last week we looked at how AWS Lambda behaves with one user at a frequent request rate (see first post). We figured that AWS Lambda will create a pool of running instances. When an event triggers a lambda function, AWS Lambda will look in the pool to…

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