Merge pull request #1548 from ydb-platform/use-pick-first-for-discovery

Use `pick_first` balancer for discovery attempts
ydb-platform · Nov 8, 2024 · 8e7f434 · 8e7f434
2 parents 4d80170 + 5d7d6cc
commit 8e7f434
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,5 @@
+* Set the `pick_first` balancer for short-lived grpc connection inside ydb cluster discovery attempt
+
 ## v3.90.1
 * Small broken change: added method `ID()` into `spans.Span` interface (need to implement in adapter) 
 * Fixed traceparent header for tracing grpc requests

diff --git a/internal/balancer/balancer.go b/internal/balancer/balancer.go
@@ -202,6 +202,9 @@ func makeDiscoveryFunc(
 			append(
 				driverConfig.GrpcDialOptions(),
 				grpc.WithBlock(),
+				grpc.WithDefaultServiceConfig(`{
+					"loadBalancingPolicy": "pick_first"
+				}`),
 			)...,
 		)
 		if err != nil {