feat: add E2E tests for cases that peers going offline

Signed-off-by: BruceAko <chongzhi@hust.edu.cn>

Author: BruceAko

deploy/docker-compose/template/scheduler.template.yaml

@@ -61,7 +61,7 @@ scheduler:
     # then the task will also be reclaimed.
     taskGCInterval: 30m
     # hostGCInterval is the interval of host gc.
-    hostGCInterval: 6h
+    hostGCInterval: 5m
     # hostTTL is time to live of host. If host announces message to scheduler,
     # then HostTTl will be reset.
     hostTTL: 1h

pkg/rpc/scheduler/client/client_v1.go

@@ -90,7 +90,7 @@ func GetV1(ctx context.Context, dynconfig config.Dynconfig, opts ...grpc.DialOpt
 	}, nil
 }
 
-// GetV1ByAddr returns v2 version of the scheduler client by address.
+// GetV1ByAddr returns v1 version of the scheduler client by address.
 func GetV1ByAddr(ctx context.Context, target string, opts ...grpc.DialOption) (V1, error) {
 	conn, err := grpc.DialContext(
 		ctx,

test/e2e/v2/leave_host_test.go

@@ -0,0 +1,40 @@
+/*
+ *     Copyright 2024 The Dragonfly Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package e2e
+
+import (
+	"context"
+	"fmt"
+
+	schedulerclient "d7y.io/dragonfly/v2/pkg/rpc/scheduler/client"
+	. "github.com/onsi/ginkgo/v2" //nolint
+	. "github.com/onsi/gomega"    //nolint
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+)
+
+var _ = Describe("Clients go offline normally and abnormally", func() {
+	Context("scheduler clears peer metadata", func() {
+		It("number of hosts should be ok", Label("host", "leave"), func() {
+			grpcCredentials := insecure.NewCredentials()
+			schedulerClient, err := schedulerclient.GetV2ByAddr(context.Background(), "127.0.0.1:8002", grpc.WithTransportCredentials(grpcCredentials))
+			Expect(err).NotTo(HaveOccurred())
+			fmt.Println(schedulerClient)
+		})
+	})
+})
+s

test/testdata/charts/config-v2.yaml

@@ -96,6 +96,7 @@ seedClient:
 
 client:
   enable: true
+  replicas: 3
   image:
     repository: dragonflyoss/client
     tag: latest