keep alive for gRpc calls

weed/util/grpc_client_server.go

@@ -0,0 +1,28 @@
+package util
+
+import (
+	"time"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/keepalive"
+)
+
+func NewGrpcServer() *grpc.Server {
+	return grpc.NewServer(grpc.KeepaliveParams(keepalive.ServerParameters{
+		Time:    10 * time.Second, // wait time before ping if no activity
+		Timeout: 20 * time.Second, // ping timeout
+	}), grpc.KeepaliveEnforcementPolicy(keepalive.EnforcementPolicy{
+		MinTime: 60 * time.Second, // min time a client should wait before sending a ping
+	}))
+}
+
+func GrpcDial(address string, opts ...grpc.DialOption) (*grpc.ClientConn, error) {
+
+	opts = append(opts, grpc.WithInsecure())
+	opts = append(opts, grpc.WithKeepaliveParams(keepalive.ClientParameters{
+		Time:    30 * time.Second, // client ping server if no activity for this long
+		Timeout: 20 * time.Second,
+	}))
+
+	return grpc.Dial(address, opts...)
+}