Opentracing API incompability with DataDog agent v5.12.3

[sutris]

Hi,

I noticed that dd-trace v0.2.1's Opentracing API is incompatible with DataDog agent v5.12.3

When the following code is executed:

const tracer = require('dd-trace').init({ service: 'example' });

const span = tracer.startSpan('span_name');
span.setTag('resource.name', '/hello/:name');
span.setTag('span.type', 'web');

span.finish();

the following error is logged in trace-agent.log:

cannot decode v0.3 traces payload: msgp: attempted to decode type "int" with method for "uint"

The current workaround is to use dd-trace v0.1.7

Thank you in advance 🙏

[rochdev]

@sutris-sdp This will be fixed in the next release. I don't know how feasible this is for you, but as a temporary workaround you could upgrade the agent to 5.14+ which supports signed integers for IDs. In any case I would recommend keeping the agent up-to-date.