https://github.com/wfxiang08/sm-kingshard
扩展自kingshard，添加了graceful restart, 添加了自己的sharding方式，重构了代码
https://github.com/wfxiang08/sm-kingshard
graceful-restart-process mysql mysql-proxy sharding
Last synced: 21 days ago
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扩展自kingshard，添加了graceful restart, 添加了自己的sharding方式，重构了代码
- Host: GitHub
- URL: https://github.com/wfxiang08/sm-kingshard
- Owner: wfxiang08
- Created: 2017-10-21T08:20:47.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2017-11-14T10:26:34.000Z (over 8 years ago)
- Last Synced: 2025-09-20T22:35:49.787Z (9 months ago)
- Topics: graceful-restart-process, mysql, mysql-proxy, sharding
- Language: Go
- Homepage:
- Size: 329 KB
- Stars: 1
- Watchers: 5
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# SMDbProxy:
* https://github.com/wfxiang08/sm_kingshard
* SMDbProxy用法上和MySQL基本相同
## 运维:
* 下载代码
```bash
git clone https://github.com/wfxiang08/sm_kingshard.git
cd sm_kingshard/src
```
* 编译代码
```bash
source start_env.sh
glide install
go build cmds/cmds/service_sm_proxy.go
```
* 部署
```bash
# 拷贝&通过systemctl运维
bash scripts/scp_dbproxy.sh host_name
# 不影响现有服务，直接进行更新
systemctl reload dbproxy
Graceful Restart
pidof service_sm_prox
# 启动新的进程：可以更新binary/conf, 并且继承当前进程的listeners;
# 新的请求交给新的进程，旧的请求在旧的进程中处理，直到所有的旧的请求处理完毕才推出或者10s后强制退出
kill -USR2 `pidof service_sm_prox`
Golang中定义的Signal和Linux的Signal不太一样，不要通过数字来代替 USR1, USR2
```
## 访问
```
mysql -u root -pxxx -P9900 -h172.1.2.12
use shard_sm
或
mysql -u root -pxxx -P9900 -h172.1.2.12 shard_sm
```
## Prepared Statement
* 不建议使用Prepared Statement, 在Sharding模式下禁用
* golang中推荐使用:
* user:password@tcp(db.hostname:3306)/db_name?charset=utf8mb4,utf8&interpolateParams=true&parseTime=True&loc=UTC
* interpolateParams=true, 表示不直接使用prepared statement