-
Notifications
You must be signed in to change notification settings - Fork 712
/
region_syncer_test.go
232 lines (206 loc) · 7.33 KB
/
region_syncer_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
// Copyright 2018 TiKV Project 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 syncer_test
import (
"context"
"testing"
"time"
. "github.com/pingcap/check"
"github.com/pingcap/failpoint"
"github.com/pingcap/kvproto/pkg/metapb"
"github.com/tikv/pd/pkg/mock/mockid"
"github.com/tikv/pd/pkg/testutil"
"github.com/tikv/pd/server"
"github.com/tikv/pd/server/config"
"github.com/tikv/pd/server/core"
"github.com/tikv/pd/tests"
"go.uber.org/goleak"
)
func Test(t *testing.T) {
TestingT(t)
}
func TestMain(m *testing.M) {
goleak.VerifyTestMain(m, testutil.LeakOptions...)
}
var _ = SerialSuites(®ionSyncerTestSuite{})
type regionSyncerTestSuite struct {
ctx context.Context
cancel context.CancelFunc
}
func (s *regionSyncerTestSuite) SetUpSuite(c *C) {
s.ctx, s.cancel = context.WithCancel(context.Background())
server.EnableZap = true
}
func (s *regionSyncerTestSuite) TearDownSuite(c *C) {
s.cancel()
}
type idAllocator struct {
allocator *mockid.IDAllocator
}
func (i *idAllocator) alloc() uint64 {
v, _ := i.allocator.Alloc()
return v
}
func (s *regionSyncerTestSuite) TestRegionSyncer(c *C) {
c.Assert(failpoint.Enable("github.com/tikv/pd/server/storage/regionStorageFastFlush", `return(true)`), IsNil)
c.Assert(failpoint.Enable("github.com/tikv/pd/server/syncer/noFastExitSync", `return(true)`), IsNil)
defer failpoint.Disable("github.com/tikv/pd/server/storage/regionStorageFastFlush")
defer failpoint.Disable("github.com/tikv/pd/server/syncer/noFastExitSync")
cluster, err := tests.NewTestCluster(s.ctx, 3, func(conf *config.Config, serverName string) { conf.PDServerCfg.UseRegionStorage = true })
defer cluster.Destroy()
c.Assert(err, IsNil)
err = cluster.RunInitialServers()
c.Assert(err, IsNil)
cluster.WaitLeader()
leaderServer := cluster.GetServer(cluster.GetLeader())
c.Assert(leaderServer.BootstrapCluster(), IsNil)
rc := leaderServer.GetServer().GetRaftCluster()
c.Assert(rc, NotNil)
c.Assert(cluster.WaitRegionSyncerClientsReady(2), IsTrue)
regionLen := 110
regions := initRegions(regionLen)
for _, region := range regions {
err = rc.HandleRegionHeartbeat(region)
c.Assert(err, IsNil)
}
// merge case
// region2 -> region1 -> region0
// merge A to B will increases version to max(versionA, versionB)+1, but does not increase conver
regions[0] = regions[0].Clone(core.WithEndKey(regions[2].GetEndKey()), core.WithIncVersion(), core.WithIncVersion())
err = rc.HandleRegionHeartbeat(regions[2])
c.Assert(err, IsNil)
// merge case
// region3 -> region4
// merge A to B will increases version to max(versionA, versionB)+1, but does not increase conver
regions[4] = regions[3].Clone(core.WithEndKey(regions[4].GetEndKey()), core.WithIncVersion())
err = rc.HandleRegionHeartbeat(regions[4])
c.Assert(err, IsNil)
// merge case
// region0 -> region4
// merge A to B will increases version to max(versionA, versionB)+1, but does not increase conver
regions[4] = regions[0].Clone(core.WithEndKey(regions[4].GetEndKey()), core.WithIncVersion(), core.WithIncVersion())
err = rc.HandleRegionHeartbeat(regions[4])
c.Assert(err, IsNil)
regions = regions[4:]
regionLen = len(regions)
// change the statistics of regions
for i := 0; i < len(regions); i++ {
idx := uint64(i)
regions[i] = regions[i].Clone(
core.SetWrittenBytes(idx+10),
core.SetWrittenKeys(idx+20),
core.SetReadBytes(idx+30),
core.SetReadKeys(idx+40))
err = rc.HandleRegionHeartbeat(regions[i])
c.Assert(err, IsNil)
}
// change the leader of region
for i := 0; i < len(regions); i++ {
regions[i] = regions[i].Clone(core.WithLeader(regions[i].GetPeers()[1]))
err = rc.HandleRegionHeartbeat(regions[i])
c.Assert(err, IsNil)
}
// ensure flush to region storage, we use a duration larger than the
// region storage flush rate limit (3s).
time.Sleep(4 * time.Second)
// test All regions have been synchronized to the cache of followerServer
followerServer := cluster.GetServer(cluster.GetFollower())
c.Assert(followerServer, NotNil)
cacheRegions := leaderServer.GetServer().GetBasicCluster().GetRegions()
c.Assert(cacheRegions, HasLen, regionLen)
testutil.WaitUntil(c, func() bool {
for _, region := range cacheRegions {
r := followerServer.GetServer().GetBasicCluster().GetRegion(region.GetID())
if !(c.Check(r.GetMeta(), DeepEquals, region.GetMeta()) &&
c.Check(r.GetStat(), DeepEquals, region.GetStat()) &&
c.Check(r.GetLeader(), DeepEquals, region.GetLeader())) {
return false
}
}
return true
})
err = leaderServer.Stop()
c.Assert(err, IsNil)
cluster.WaitLeader()
leaderServer = cluster.GetServer(cluster.GetLeader())
c.Assert(leaderServer, NotNil)
loadRegions := leaderServer.GetServer().GetRaftCluster().GetRegions()
c.Assert(loadRegions, HasLen, regionLen)
for _, region := range regions {
r := leaderServer.GetRegionInfoByID(region.GetID())
c.Assert(r.GetMeta(), DeepEquals, region.GetMeta())
c.Assert(r.GetStat(), DeepEquals, region.GetStat())
c.Assert(r.GetLeader(), DeepEquals, region.GetLeader())
}
}
func (s *regionSyncerTestSuite) TestFullSyncWithAddMember(c *C) {
cluster, err := tests.NewTestCluster(s.ctx, 1, func(conf *config.Config, serverName string) { conf.PDServerCfg.UseRegionStorage = true })
defer cluster.Destroy()
c.Assert(err, IsNil)
err = cluster.RunInitialServers()
c.Assert(err, IsNil)
cluster.WaitLeader()
leaderServer := cluster.GetServer(cluster.GetLeader())
c.Assert(leaderServer.BootstrapCluster(), IsNil)
rc := leaderServer.GetServer().GetRaftCluster()
c.Assert(rc, NotNil)
regionLen := 110
regions := initRegions(regionLen)
for _, region := range regions {
err = rc.HandleRegionHeartbeat(region)
c.Assert(err, IsNil)
}
// ensure flush to region storage
time.Sleep(3 * time.Second)
// restart pd1
err = leaderServer.Stop()
c.Assert(err, IsNil)
err = leaderServer.Run()
c.Assert(err, IsNil)
c.Assert(cluster.WaitLeader(), Equals, "pd1")
// join new PD
pd2, err := cluster.Join(s.ctx)
c.Assert(err, IsNil)
err = pd2.Run()
c.Assert(err, IsNil)
c.Assert(cluster.WaitLeader(), Equals, "pd1")
// waiting for synchronization to complete
time.Sleep(3 * time.Second)
err = cluster.ResignLeader()
c.Assert(err, IsNil)
c.Assert(cluster.WaitLeader(), Equals, "pd2")
loadRegions := pd2.GetServer().GetRaftCluster().GetRegions()
c.Assert(loadRegions, HasLen, regionLen)
}
func initRegions(regionLen int) []*core.RegionInfo {
allocator := &idAllocator{allocator: mockid.NewIDAllocator()}
regions := make([]*core.RegionInfo, 0, regionLen)
for i := 0; i < regionLen; i++ {
r := &metapb.Region{
Id: allocator.alloc(),
RegionEpoch: &metapb.RegionEpoch{
ConfVer: 1,
Version: 1,
},
StartKey: []byte{byte(i)},
EndKey: []byte{byte(i + 1)},
Peers: []*metapb.Peer{
{Id: allocator.alloc(), StoreId: uint64(0)},
{Id: allocator.alloc(), StoreId: uint64(0)},
},
}
regions = append(regions, core.NewRegionInfo(r, r.Peers[0]))
}
return regions
}