added experimental package spans with abstract layer for tracing

CHANGELOG.md

@@ -1,3 +1,4 @@
+* Added experimental package `spans` with tracing adapter interfaces for OpenTelemetry, OpenTracing, etc.
 * Added `db.Topic().DescribeTopicConsumer()` method for displaying consumer information
 * Marked as deprecated options `ydb.WithDatabase(database)` and `ydb.WithEndpoint(endpoint)`
 

codecov.yml

@@ -4,6 +4,7 @@
 # below in your own codecov.yml in your repository.
 #
 ignore:
+  - spans
   - trace
   - testutil
   - examples

internal/balancer/balancer.go

@@ -88,8 +88,10 @@ func (b *Balancer) clusterDiscoveryAttempt(ctx context.Context) (err error) {
 		onDone  = trace.DriverOnBalancerClusterDiscoveryAttempt(
 			b.driverConfig.Trace(), &ctx,
 			stack.FunctionID(
-				"github.com/ydb-platform/ydb-go-sdk/v3/internal/balancer.(*Balancer).clusterDiscoveryAttempt"),
+				"github.com/ydb-platform/ydb-go-sdk/v3/internal/balancer.(*Balancer).clusterDiscoveryAttempt",
+			),
 			address,
+			b.driverConfig.Database(),
 		)
 		endpoints []endpoint.Endpoint
 		localDC   string
@@ -130,6 +132,7 @@ func (b *Balancer) applyDiscoveredEndpoints(ctx context.Context, newest []endpoi
 			stack.FunctionID(
 				"github.com/ydb-platform/ydb-go-sdk/v3/internal/balancer.(*Balancer).applyDiscoveredEndpoints"),
 			b.config.DetectNearestDC,
+			b.driverConfig.Database(),
 		)
 		previous = b.connections().All()
 	)