这个连接池经过了两个游戏平台的打磨。目前在DAU超过10M的环境里表现稳定。
Connection pool with service discovery.
Choose Thrift or gRPC as the protocol. Custom protocol will be OK too.
Default load balance method is weightedRoundRobin.
Instructions：
1.Run zookeeper
create a path on zk：
'> zkCli.sh
'> create /connection_pool_test
'> create /connection_pool_test/server
2.Start Example Server
'> cd connection_pool/example/thrift_server_example
edit main.go and change zookeeper address to the actual zk
'> go run main.go
3.Start Example Client
'> cd connection_pool/example/client_example
edit main.go and change zookeeper address to the actual zk
'> go run main.go