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
|
//go:build !gitaly_test_sha256
package nodes
import (
"sync"
"testing"
"time"
"github.com/stretchr/testify/require"
"gitlab.com/gitlab-org/gitaly/v15/internal/praefect/config"
"gitlab.com/gitlab-org/gitaly/v15/internal/testhelper"
"gitlab.com/gitlab-org/gitaly/v15/internal/testhelper/promtest"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
)
func setupElector(t *testing.T) (*localElector, []*nodeStatus, *grpc.ClientConn) {
socket := testhelper.GetTemporaryGitalySocketFileName(t)
testhelper.NewServerWithHealth(t, socket)
cc, err := grpc.Dial(
"unix://"+socket,
grpc.WithTransportCredentials(insecure.NewCredentials()),
)
t.Cleanup(func() { testhelper.MustClose(t, cc) })
require.NoError(t, err)
storageName := "default"
mockHistogramVec0, mockHistogramVec1 := promtest.NewMockHistogramVec(), promtest.NewMockHistogramVec()
cs := newConnectionStatus(config.Node{Storage: storageName}, cc, testhelper.NewDiscardingLogEntry(t), mockHistogramVec0, nil)
secondary := newConnectionStatus(config.Node{Storage: storageName}, cc, testhelper.NewDiscardingLogEntry(t), mockHistogramVec1, nil)
ns := []*nodeStatus{cs, secondary}
logger := testhelper.NewDiscardingLogger(t).WithField("test", t.Name())
strategy := newLocalElector(storageName, logger, ns)
strategy.bootstrap(time.Second)
return strategy, ns, cc
}
func TestGetShard(t *testing.T) {
strategy, ns, _ := setupElector(t)
ctx := testhelper.Context(t)
shard, err := strategy.GetShard(ctx)
require.NoError(t, err)
require.Equal(t, ns[0], shard.Primary)
require.Len(t, shard.Secondaries, 1)
require.Equal(t, ns[1], shard.Secondaries[0])
}
func TestConcurrentCheckWithPrimary(t *testing.T) {
strategy, ns, _ := setupElector(t)
iterations := 10
var wg sync.WaitGroup
start := make(chan bool)
wg.Add(2)
ctx := testhelper.Context(t)
go func() {
defer wg.Done()
<-start
for i := 0; i < iterations; i++ {
require.NoError(t, strategy.checkNodes(ctx))
}
}()
go func() {
defer wg.Done()
start <- true
for i := 0; i < iterations; i++ {
shard, err := strategy.GetShard(ctx)
require.NoError(t, err)
require.Equal(t, ns[0], shard.Primary)
require.Equal(t, 1, len(shard.Secondaries))
require.Equal(t, ns[1], shard.Secondaries[0])
}
}()
wg.Wait()
}
|
