mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
98 lines
3.0 KiB
Go
98 lines
3.0 KiB
Go
// Copyright 2017 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build !cluster_proxy
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package integration
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import (
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"context"
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"testing"
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"time"
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"github.com/coreos/etcd/clientv3"
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"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
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"github.com/coreos/etcd/integration"
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"github.com/coreos/etcd/pkg/testutil"
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)
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// TestNetworkPartitionBalancerPut tests when one member becomes isolated,
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// first Put request fails, and following retry succeeds with client balancer
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// switching to others.
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func TestNetworkPartitionBalancerPut(t *testing.T) {
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testNetworkPartitionBalancer(t, func(cli *clientv3.Client, ctx context.Context) error {
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_, err := cli.Put(ctx, "a", "b")
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return err
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})
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}
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// TestNetworkPartitionBalancerGet tests when one member becomes isolated,
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// first Get request fails, and following retry succeeds with client balancer
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// switching to others.
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func TestNetworkPartitionBalancerGet(t *testing.T) {
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testNetworkPartitionBalancer(t, func(cli *clientv3.Client, ctx context.Context) error {
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_, err := cli.Get(ctx, "a")
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return err
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})
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}
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func testNetworkPartitionBalancer(t *testing.T, op func(*clientv3.Client, context.Context) error) {
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defer testutil.AfterTest(t)
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clus := integration.NewClusterV3(t, &integration.ClusterConfig{
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Size: 3,
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GRPCKeepAliveMinTime: time.Millisecond, // avoid too_many_pings
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})
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defer clus.Terminate(t)
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// expect pin ep[0]
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ccfg := clientv3.Config{
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Endpoints: []string{clus.Members[0].GRPCAddr()},
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DialTimeout: 3 * time.Second,
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DialKeepAliveTime: 2 * time.Second,
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DialKeepAliveTimeout: 2 * time.Second,
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}
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cli, err := clientv3.New(ccfg)
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if err != nil {
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t.Fatal(err)
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}
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defer cli.Close()
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// add other endpoints for later endpoint switch
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cli.SetEndpoints(clus.Members[0].GRPCAddr(), clus.Members[1].GRPCAddr(), clus.Members[2].GRPCAddr())
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clus.Members[0].InjectPartition(t, clus.Members[1:])
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for i := 0; i < 2; i++ {
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ctx, cancel := context.WithTimeout(context.Background(), time.Second)
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err = op(cli, ctx)
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cancel()
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if err == nil {
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break
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}
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// TODO: separate put and get test for error checking.
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// we do not really expect ErrTimeout on get.
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if err != context.DeadlineExceeded && err != rpctypes.ErrTimeout {
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t.Errorf("#%d: expected %v or %v, got %v", i, context.DeadlineExceeded, rpctypes.ErrTimeout, err)
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}
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// give enough time for endpoint switch
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// TODO: remove random sleep by syncing directly with balancer
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if i == 0 {
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time.Sleep(5 * time.Second)
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}
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}
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if err != nil {
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t.Errorf("balancer did not switch in time (%v)", err)
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}
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}
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