xiaoluoluo commented on a change in pull request #1205:
URL:
https://github.com/apache/servicecomb-service-center/pull/1205#discussion_r780154763
##########
File path: client/set.go
##########
@@ -1,16 +1,25 @@
package client
import (
+ "errors"
"fmt"
v1sync "github.com/apache/servicecomb-service-center/api/sync/v1"
"github.com/apache/servicecomb-service-center/pkg/log"
"google.golang.org/grpc"
+ "google.golang.org/grpc/resolver"
+ "google.golang.org/grpc/resolver/manual"
+)
+
+var (
+ ErrAddrEmpty = errors.New("addr is empty")
+ ErrConnNil = errors.New("conn is nil")
)
// SetConfig is client configs
type SetConfig struct {
- Addr string
+ Addr []string
+ Scheme string
Review comment:
调用请求的时候 会 注册上 解析器 schema 是解析器的名字，这里可以根据自己的业务自己定义
##########
File path: client/set.go
##########
@@ -19,13 +28,35 @@ type Set struct {
}
// NewSetForConfig dial grpc connection and create all grpc clients
-func NewSetForConfig(c SetConfig) (*Set, error) {
- conn, err := grpc.Dial(c.Addr, grpc.WithInsecure())
+func NewSetForConfig(c SetConfig) (*grpc.ClientConn, *Set, error) {
+ if len(c.Addr) <= 0 {
+ return nil, nil, ErrAddrEmpty
+ }
+
+ var conn *grpc.ClientConn
+ var err error
+
+ if len(c.Addr) <= 1 {
+ conn, err = grpc.Dial(c.Addr[0], grpc.WithInsecure())
+ } else {
+ addr := make([]resolver.Address, 0, len(c.Addr))
+ for _, a := range c.Addr {
+ addr = append(addr, resolver.Address{Addr: a})
+ }
+ r := manual.NewBuilderWithScheme(c.Scheme)
+ r.InitialState(resolver.State{Addresses: addr})
+ conn, err = grpc.Dial(r.Scheme()+":///", grpc.WithInsecure(),
grpc.WithResolvers(r))
Review comment:
这里在请求的时候 grpc.WithResolvers(r)) 带上解析器
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