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
|
package redis
import (
"context"
"fmt"
"net"
"strings"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/hashtag"
"github.com/go-redis/redis/v8/internal/pool"
)
func (c *baseClient) Pool() pool.Pooler {
return c.connPool
}
func (c *PubSub) SetNetConn(netConn net.Conn) {
c.cn = pool.NewConn(netConn)
}
func (c *ClusterClient) LoadState(ctx context.Context) (*clusterState, error) {
// return c.state.Reload(ctx)
return c.loadState(ctx)
}
func (c *ClusterClient) SlotAddrs(ctx context.Context, slot int) []string {
state, err := c.state.Get(ctx)
if err != nil {
panic(err)
}
var addrs []string
for _, n := range state.slotNodes(slot) {
addrs = append(addrs, n.Client.getAddr())
}
return addrs
}
func (c *ClusterClient) Nodes(ctx context.Context, key string) ([]*clusterNode, error) {
state, err := c.state.Reload(ctx)
if err != nil {
return nil, err
}
slot := hashtag.Slot(key)
nodes := state.slotNodes(slot)
if len(nodes) != 2 {
return nil, fmt.Errorf("slot=%d does not have enough nodes: %v", slot, nodes)
}
return nodes, nil
}
func (c *ClusterClient) SwapNodes(ctx context.Context, key string) error {
nodes, err := c.Nodes(ctx, key)
if err != nil {
return err
}
nodes[0], nodes[1] = nodes[1], nodes[0]
return nil
}
func (state *clusterState) IsConsistent(ctx context.Context) bool {
if len(state.Masters) < 3 {
return false
}
for _, master := range state.Masters {
s := master.Client.Info(ctx, "replication").Val()
if !strings.Contains(s, "role:master") {
return false
}
}
if len(state.Slaves) < 3 {
return false
}
for _, slave := range state.Slaves {
s := slave.Client.Info(ctx, "replication").Val()
if !strings.Contains(s, "role:slave") {
return false
}
}
return true
}
func GetSlavesAddrByName(ctx context.Context, c *SentinelClient, name string) []string {
addrs, err := c.Slaves(ctx, name).Result()
if err != nil {
internal.Logger.Printf(ctx, "sentinel: Slaves name=%q failed: %s",
name, err)
return []string{}
}
return parseSlaveAddrs(addrs, false)
}
|
