Distributed Tracing
In node.js
Distributed Systems Visibility
What is going on?
Which Services/Dbs are involved?
Where exactly did it happen?
How much time each step took?
The Power of Distributed Tracing
DEMO
Tracing Requests
-
In Jaeger UI
-
In Kibana (Logs and events)
Adding Your Own Spans
import { tracer } from '@sage/toolkit';
async function readBigFile() {
const span = tracer.createSpan('Reading a big file');
const file = await bigFileReader.read();
span.log({
filename: file.name,
size: file.size
});
span.finish();
}How Does it Work?
Continuation-Local Storage
