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
|
package operation
import (
"context"
"fmt"
"net"
"strconv"
"strings"
"sync"
"time"
"google.golang.org/grpc"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
"github.com/chrislusf/seaweedfs/weed/util"
)
var (
connectionPool = make(map[string]*util.ResourcePool)
connectionPoolLock sync.Mutex
)
func WithVolumeServerClient(volumeServer string, grpcDialOption grpc.DialOption, fn func(context.Context, volume_server_pb.VolumeServerClient) error) error {
ctx := context.Background()
grpcAddress, err := toVolumeServerGrpcAddress(volumeServer)
if err != nil {
return err
}
return util.WithCachedGrpcClient(ctx, func(ctx2 context.Context, grpcConnection *grpc.ClientConn) error {
client := volume_server_pb.NewVolumeServerClient(grpcConnection)
return fn(ctx2, client)
}, grpcAddress, grpcDialOption)
}
func toVolumeServerGrpcAddress(volumeServer string) (grpcAddress string, err error) {
sepIndex := strings.LastIndex(volumeServer, ":")
port, err := strconv.Atoi(volumeServer[sepIndex+1:])
if err != nil {
glog.Errorf("failed to parse volume server address: %v", volumeServer)
return "", err
}
return fmt.Sprintf("%s:%d", volumeServer[0:sepIndex], port+10000), nil
}
func WithVolumeServerTcpConnection(volumeServer string, fn func(conn net.Conn) error) error {
tcpAddress, err := toVolumeServerTcpAddress(volumeServer)
if err != nil {
return err
}
conn, err := getConnection(tcpAddress)
if err != nil {
return err
}
defer releaseConnection(conn, tcpAddress)
err = fn(conn)
return err
}
func getConnection(tcpAddress string) (net.Conn, error) {
connectionPoolLock.Lock()
defer connectionPoolLock.Unlock()
pool, found := connectionPool[tcpAddress]
if !found {
println("creating pool for", tcpAddress)
raddr, err := net.ResolveTCPAddr("tcp", tcpAddress)
if err != nil {
glog.Fatal(err)
}
pool = util.NewResourcePool(16, func() (interface{}, error) {
conn, err := net.DialTCP("tcp", nil, raddr)
if err != nil {
return conn, err
}
conn.SetKeepAlive(true)
conn.SetNoDelay(true)
println("connected", tcpAddress, "=>", conn.LocalAddr().String())
return conn, nil
})
connectionPool[tcpAddress] = pool
}
connObj, err := pool.Get(time.Minute)
if err != nil {
return nil, err
}
// println("get connection", tcpAddress, "=>", conn.LocalAddr().String())
return connObj.(net.Conn), nil
}
func releaseConnection(conn net.Conn, tcpAddress string) {
connectionPoolLock.Lock()
defer connectionPoolLock.Unlock()
pool, found := connectionPool[tcpAddress]
if !found {
println("can not return connection", tcpAddress, "=>", conn.LocalAddr().String())
return
}
pool.Release(conn)
// println("returned connection", tcpAddress, "=>", conn.LocalAddr().String())
}
func toVolumeServerTcpAddress(volumeServer string) (grpcAddress string, err error) {
sepIndex := strings.LastIndex(volumeServer, ":")
port, err := strconv.Atoi(volumeServer[sepIndex+1:])
if err != nil {
glog.Errorf("failed to parse volume server address: %v", volumeServer)
return "", err
}
return fmt.Sprintf("%s:%d", volumeServer[0:sepIndex], port+20000), nil
}
func WithMasterServerClient(masterServer string, grpcDialOption grpc.DialOption, fn func(ctx2 context.Context, masterClient master_pb.SeaweedClient) error) error {
ctx := context.Background()
masterGrpcAddress, parseErr := util.ParseServerToGrpcAddress(masterServer)
if parseErr != nil {
return fmt.Errorf("failed to parse master grpc %v: %v", masterServer, parseErr)
}
return util.WithCachedGrpcClient(ctx, func(ctx2 context.Context, grpcConnection *grpc.ClientConn) error {
client := master_pb.NewSeaweedClient(grpcConnection)
return fn(ctx2, client)
}, masterGrpcAddress, grpcDialOption)
}
|
