Multithreaded Logging with Pino

Almost every developer thinks that adding one more log line would not decrease the performance of their server... until logging becomes the biggest bottleneck for their systems! We created one of the fastest JSON loggers for Node.js: pino. One of our key decisions was to remove all "transport" to another process (or infrastructure): it reduced both CPU and memory consumption, removing any bottleneck from logging. However, this created friction and lowered the developer experience of using Pino and in-process transports is the most asked feature our user.

In the upcoming version 7, we will solve this problem and increase throughput at the same time: we are introducing pino.transport() to start a worker thread that you can use to transfer your logs safely to other destinations, without sacrificing neither performance nor the developer experience.

Matteo Collina
19 min

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