Knock and Open Source

1

OpenTracing

As we built out this new system, we looked at the current module ecosystem to determine if anything would fit our needs to keep this queue cleared. Unfortunately, the best module we could find, sqs-consumer, did not support FIFO queues and the issues indicated they did not have any intention to do so. Therefore, we wrote sqsiphon. Our library heavily borrows from the public interface of sqs-consumer, but is implemented in a much different way. In particular, sqsiphon leverages the Node.js event loop through setImmediate to build the polling mechanism instead of relying on SQS's "long polling" feature. Additionally, sqsiphon utilizes the JavaScript prototype to reduce reliance on expensive closures. As a bonus, OpenTracing support is built-in to sqsiphon so that applications built with it can be monitored effectively. The result is a library that can poll SQS extremely quickly while requiring very little overhead.

#Monitoring Tools #DevOps Tools #Developer Tools 27 social mentions

2

Knock

Knock.com is built with Open Source Software (OSS). It permeates our technology stack from the interactive website all the way through to the services and systems that power our infrastructure. We depend on OSS, and we are excited to start contributing back to our community. Doing so aligns well with a couple of our core values, which we call POPSICLE, "people first" and “open”:.

#Personal Finance #Music Tools #Finance 3 social mentions