bug: ydb.New() freezes on Windows

[ArtemSBulgakov]

Bug Report

YDB GO SDK version:

v3.2.7

Environment

Windows 10

go version go1.17.2 windows/amd64

Current behavior:

When trying to create new connection with ydb.New(...), program freezes.

Expected behavior:

It should create new connection and continue program.

Steps to reproduce:

package main

import (
	"context"
	"log"
	"os"
	"time"

	"github.com/ydb-platform/ydb-go-sdk/v3"
	"github.com/ydb-platform/ydb-go-sdk/v3/config"
	yc "github.com/ydb-platform/ydb-go-yc"
)

func main() {
	ctx := context.Background()
	log.Println("1")
	db, err := ydb.New(
		ctx,
		ydb.WithConnectionString(os.Getenv("YDB_CONNECTION_STRING")),
		ydb.WithDialTimeout(5*time.Second),
		ydb.WithBalancingConfig(config.BalancerConfig{
			Algorithm:   config.BalancingAlgorithmRandomChoice,
			PreferLocal: false,
		}),
		yc.WithServiceAccountKeyFileCredentials(
			"sa.json",
			yc.WithDefaultEndpoint(),
			yc.WithInsecureSkipVerify(true),
		),
		ydb.WithSessionPoolSizeLimit(300),
		ydb.WithSessionPoolIdleThreshold(time.Second*5),
		ydb.WithGrpcConnectionTTL(5*time.Second),
	)
	log.Println("2")
	if err != nil {
		panic(err)
	}
	defer func() {
		_ = db.Close(ctx)
	}()

	log.Printf("Database: %s", db.Name())
}

Related code:

Output:

2021/11/03 16:37:24 1

(it doesn't print 2 and doesn't return any error)

Other information:

Stacktrace when pausing program in debug mode in GoLand:

runtime.gopark at proc.go:337
runtime.selectgo at select.go:327
google.golang.org/grpc.(*ClientConn).WaitForStateChange at clientconn.go:508
google.golang.org/grpc.DialContext at clientconn.go:316
github.com/ydb-platform/ydb-go-sdk/v3/internal/dial.(*dialer).dial at dialer.go:78
github.com/ydb-platform/ydb-go-sdk/v3/internal/dial.(*dialer).dial-fm at dialer.go:77
github.com/ydb-platform/ydb-go-sdk/v3/internal/driver/cluster/balancer/conn.(*conn).take at conn.go:88
github.com/ydb-platform/ydb-go-sdk/v3/internal/driver/cluster/balancer/conn.(*conn).Invoke at conn.go:217
github.com/ydb-platform/ydb-go-genproto/Ydb_Discovery_V1.(*discoveryServiceClient).ListEndpoints at ydb_discovery_v1_grpc.pb.go:36
github.com/ydb-platform/ydb-go-sdk/v3/internal/discovery.(*client).Discover at discovery.go:61
github.com/ydb-platform/ydb-go-sdk/v3/internal/dial.(*dialer).discover at discovery.go:18
github.com/ydb-platform/ydb-go-sdk/v3/internal/dial.(*dialer).connect at dialer.go:63
github.com/ydb-platform/ydb-go-sdk/v3/internal/dial.Dial at dialer.go:37
github.com/ydb-platform/ydb-go-sdk/v3.New at connection.go:124
main.main at main.go:17
runtime.main at proc.go:225
runtime.goexit at asm_amd64.s:1371
 - Async Stack Trace
runtime.rt0_go at asm_amd64.s:226

[asmyasnikov]

Hello, do you check bug on latest version of sdk on your windows system?

[ArtemSBulgakov]

The bug is fixed, thanks!