Unable to get trace to Jaeger tracing

[bikashsharmabks]

I am new to opentracing and would like to use it, to get tracing around various microservices which we built (mostly using node).

To start with I tried to build a hello-world service using jaeger-client-node (code snippet) attached.

Below are the steps done:

1. Docker around Jaeger Tracing
   sudo docker run -d -p5775:5775/udp -p6831:6831/udp -p6832:6832/udp -p5778:5778 -p16686:16686 -p14268:14268 jaegertracing/all-in-one:latest

2. Here is the below code which I am trying to run to get opentracing work

var restify = require('restify');
var initTracer = require('jaeger-client').initTracer;
var bunyan = require('bunyan');
var logger = bunyan.createLogger({
  name: 'hello-world'
});

// See schema https://github.com/uber/jaeger-client-node/blob/master/src/configuration.js#L37
var config = {
  'serviceName': 'hello-world'
};
var options = {
  'tags': {
    'hello-world.version': '1.1.2'
  },
  'logger': logger
};

var tracer = initTracer(config, options);

function respond(req, res, next) {

  var span = tracer.startSpan('GET-hello');
  span.log({'name': req.params.name});
  span.finish();

  res.send('hello: ' + req.params.name);

  next();
}

var server = restify.createServer();
server.get('/hello/:name', respond);

server.listen(8080, function() {
  console.log('%s listening at %s', server.name, server.url);
});

3. >>node index.js
I Get a log from Jaeger saying

{"name":"hello-world","hostname":"P10-LAP-031","pid":2405,"level":30,"msg":"Initializing Jaeger Tracer with RemoteReporter and RemoteSampler","time":"2017-07-28T07:05:00.264Z","v":0}
restify listening at http://[::]:8080

Every 1 minute I get error in my log

**{"name":"hello-world","hostname":"P10-LAP-031","pid":2405,"level":50,"msg":"Error in parsing sampling strategy: SyntaxError: Unexpected token c in JSON at position 1.","time":"2017-07-28T07:06:04.790Z","v":0}**

And I dont get any Traces in Jaeger UI http://localhost:16686/search

Do let me know if I am missing anything

Thanks

[black-adder]

Hi there, this ticket should contain the information you need: #135

essentially you want to pass in const sampler (sampler: { type: 'const', param: 1 }) so that all your traces are sampled. Otherwise the default sampling rate is 1 in 1000

[bikashsharmabks]

Thanks @black-adder it worked for me.