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docs: update README
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README.md

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@@ -10,6 +10,8 @@ Load-Balance-Driver, wrapper of mysql-jdbc-driver, suitable for use in databases
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* 参考了网易内部分库分表中间件DDB的LBDriver的代码,但是重写了代码,从而适配更一般的场景
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* 适用于需要业务直连sql-proxy,而非通过负载均衡器(nlb/slb),使得负载均衡的逻辑从nlb/slb下沉到driver层
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* 优点是使得sql-proxy的负载更均衡,且通过减少网络链路,降低rt,避免负载均衡器(nlb/slb)成为性能瓶颈
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* driver会自动探活并屏蔽故障sql-proxy,自动均衡到各个sql-proxy的连接数
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* 在对接config-server的模式下,可以不重启业务进程,做到快速上下线sql-proxy
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* 仅依赖slf4j-api和mysql-connector-java,没有其他依赖
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* 适用于oceanbase、tidb等
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