From 849dbe034b3e4398922c383e09900b464a60db69 Mon Sep 17 00:00:00 2001
From: pacoxu <paco.xu@daocloud.io>
Date: Thu, 29 Apr 2021 16:27:08 +0800
Subject: [PATCH] use PermitWithoutStream=true for etcd: send pings even
 without active streams

Signed-off-by: pacoxu <paco.xu@daocloud.io>
---
 .../k8s.io/apiserver/pkg/storage/storagebackend/factory/etcd3.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/staging/src/k8s.io/apiserver/pkg/storage/storagebackend/factory/etcd3.go b/staging/src/k8s.io/apiserver/pkg/storage/storagebackend/factory/etcd3.go
index c0fd8045f3a..7c4a91ee6b8 100644
--- a/staging/src/k8s.io/apiserver/pkg/storage/storagebackend/factory/etcd3.go
+++ b/staging/src/k8s.io/apiserver/pkg/storage/storagebackend/factory/etcd3.go
@@ -149,6 +149,7 @@ func newETCD3Client(c storagebackend.TransportConfig) (*clientv3.Client, error)
 		DialTimeout:          dialTimeout,
 		DialKeepAliveTime:    keepaliveTime,
 		DialKeepAliveTimeout: keepaliveTimeout,
+		PermitWithoutStream:  true,
 		DialOptions:          dialOptions,
 		Endpoints:            c.ServerList,
 		TLS:                  tlsConfig,