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test/integration: block etcd client creation until connection is up

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The new etcd balancer (>3.3.14, 3.4.0) uses an asynchronous resolver for
endpoints. Without "WithBlock", the client may return before the
connection is up.

Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
This commit is contained in:
Gyuho Lee 2019-08-14 17:28:35 -07:00
parent eb1509a1d3
commit b61433ef0f
1 changed files with 7 additions and 2 deletions
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5
test/integration/utils.go
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@ -20,6 +20,7 @@ import (
"testing" "testing"
"time" "time"
"google.golang.org/grpc"
"k8s.io/apimachinery/pkg/api/errors" "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait" "k8s.io/apimachinery/pkg/util/wait"
@ -83,6 +84,10 @@ func GetEtcdClients(config storagebackend.TransportConfig) (*clientv3.Client, cl
cfg := clientv3.Config{ cfg := clientv3.Config{
Endpoints: config.ServerList, Endpoints: config.ServerList,
DialTimeout: 20 * time.Second,
DialOptions: []grpc.DialOption{
grpc.WithBlock(), // block until the underlying connection is up
},
TLS: tlsConfig, TLS: tlsConfig,
} }