Same certain spans in tracing are missing

[yudintsevegor]

Hello, people!

Setup

My team uses github.com/openfga/openfga v1.8.11 for our application. We initialise the server with the following function:

MustNewServerWithOpts directly with some options.

F.e.

opts := append([]server.OpenFGAServiceV1Option{
		server.WithContext(serveCtx),
		server.WithDatastore(datastore),
		server.WithResolveNodeLimit(cfg.ResolveNodeBreadthLimit),
		server.WithResolveNodeBreadthLimit(cfg.ResolveNodeBreadthLimit),
		server.WithListObjectsDeadline(cfg.ListObjectsDeadline),
		server.WithListObjectsMaxResults(cfg.ListObjectsMaxResults),
		server.WithMaxConcurrentReadsForListObjects(cfg.MaxConcurrentReadsForListObjects),
		server.WithMaxConcurrentReadsForCheck(cfg.MaxConcurrentReadsForCheck),
		server.WithMaxConcurrentChecksPerBatchCheck(cfg.MaxConcurrentReadsForBatchCheck),
		server.WithMaxChecksPerBatchCheck(cfg.MaxChecksPerBatchCheck),
		server.WithRequestDurationByQueryHistogramBuckets([]uint{0, 5, 10, 25, 50, 75, 100, 250, 500, 750, 1000, 2500, 5000, 7500, 10000}), // in ms
		server.WithMaxAuthorizationModelSizeInBytes(256 * 1_024),                                                                           // 256 KB
		server.WithCheckQueryCacheEnabled(true),
		server.WithContextPropagationToDatastore(true),
		server.WithExperimentals(experimentalFeatures...),
	}, cfg.Cache.OpenFGAServerOpts()...)

	return server.MustNewServerWithOpts(opts...)

Problem

If I want to check the trace for the call Server.Check,
I could observe only certain spans: cache.Read or resolveTypesystem, but I couldn't find any spans with other span names. F.e. Check or
ResolveCheck.

It looks quite weird that only certain spans are presented in every trace.

Adding some screenshots from our Honeycomb:

Do I miss something in the configuration, or is it something expected?
I am not really sure that it's an "issue" on this package side, but it seems like sampling for spans, when every time it affects the certain span names 😅

The help will be appreciated!

[yudintsevegor]

We found out in the team that we made noop for these libs and it was the issue on our side, not on openfga package - I apologise for it 😅

if slices.Contains(t.names, name) {
     return t.noop.Tracer(name, opts...)
}