-
Notifications
You must be signed in to change notification settings - Fork 2.1k
/
client.go
165 lines (130 loc) · 4.19 KB
/
client.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
/*
Copyright 2019 The Vitess 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 vtbench
import (
"context"
"fmt"
"sync"
"google.golang.org/grpc"
"vitess.io/vitess/go/mysql"
"vitess.io/vitess/go/sqltypes"
"vitess.io/vitess/go/vt/grpcclient"
"vitess.io/vitess/go/vt/key"
"vitess.io/vitess/go/vt/topo/topoproto"
"vitess.io/vitess/go/vt/vtgate/vtgateconn"
"vitess.io/vitess/go/vt/vttablet/queryservice"
"vitess.io/vitess/go/vt/vttablet/tabletconn"
querypb "vitess.io/vitess/go/vt/proto/query"
topodatapb "vitess.io/vitess/go/vt/proto/topodata"
)
type clientConn interface {
connect(ctx context.Context, cp ConnParams) error
execute(ctx context.Context, query string, bindVars map[string]*querypb.BindVariable) (*sqltypes.Result, error)
}
type mysqlClientConn struct {
conn *mysql.Conn
}
func (c *mysqlClientConn) connect(ctx context.Context, cp ConnParams) error {
conn, err := mysql.Connect(ctx, &mysql.ConnParams{
Host: cp.Hosts[0],
Port: cp.Port,
DbName: cp.DB,
Uname: cp.Username,
Pass: cp.Password,
UnixSocket: cp.UnixSocket,
})
if err != nil {
return err
}
c.conn = conn
return nil
}
func (c *mysqlClientConn) execute(ctx context.Context, query string, bindVars map[string]*querypb.BindVariable) (*sqltypes.Result, error) {
if len(bindVars) != 0 {
panic("cannot have bind vars for mysql protocol")
}
return c.conn.ExecuteFetch(query, 10000 /* maxrows */, true /* wantfields*/)
}
// used to ensure grpc.WithBlock() is added once to the options
var withBlockOnce sync.Once
type grpcVtgateConn struct {
session *vtgateconn.VTGateSession
}
var vtgateConns = map[string]*vtgateconn.VTGateConn{}
func (c *grpcVtgateConn) connect(ctx context.Context, cp ConnParams) error {
withBlockOnce.Do(func() {
grpcclient.RegisterGRPCDialOptions(func(opts []grpc.DialOption) ([]grpc.DialOption, error) {
return append(opts, grpc.WithBlock()), nil
})
})
address := fmt.Sprintf("%v:%v", cp.Hosts[0], cp.Port)
conn, ok := vtgateConns[address]
if !ok {
var err error
conn, err = vtgateconn.DialProtocol(ctx, "grpc", address)
if err != nil {
return err
}
vtgateConns[address] = conn
}
c.session = conn.Session(cp.DB, nil)
return nil
}
func (c *grpcVtgateConn) execute(ctx context.Context, query string, bindVars map[string]*querypb.BindVariable) (*sqltypes.Result, error) {
return c.session.Execute(ctx, query, bindVars)
}
type grpcVttabletConn struct {
qs queryservice.QueryService
target querypb.Target
}
var vttabletConns = map[string]queryservice.QueryService{}
func (c *grpcVttabletConn) connect(ctx context.Context, cp ConnParams) error {
withBlockOnce.Do(func() {
grpcclient.RegisterGRPCDialOptions(func(opts []grpc.DialOption) ([]grpc.DialOption, error) {
return append(opts, grpc.WithBlock()), nil
})
})
// parse the "db" into the keyspace/shard target
keyspace, tabletType, dest, err := topoproto.ParseDestination(cp.DB, topodatapb.TabletType_PRIMARY)
if err != nil {
return err
}
qs, ok := vttabletConns[cp.Hosts[0]]
if !ok {
tablet := topodatapb.Tablet{
Hostname: cp.Hosts[0],
PortMap: map[string]int32{"grpc": int32(cp.Port)},
Keyspace: keyspace,
}
var err error
qs, err = tabletconn.GetDialer()(&tablet, true)
if err != nil {
return err
}
vttabletConns[cp.Hosts[0]] = qs
}
c.qs = qs
shard, ok := dest.(key.DestinationShard)
if !ok {
return fmt.Errorf("invalid destination shard")
}
c.target = querypb.Target{
Keyspace: keyspace,
Shard: string(shard),
TabletType: tabletType,
}
return nil
}
func (c *grpcVttabletConn) execute(ctx context.Context, query string, bindVars map[string]*querypb.BindVariable) (*sqltypes.Result, error) {
return c.qs.Execute(ctx, &c.target, query, bindVars, 0, 0, nil)
}