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| Introduction |
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| 3.1 XML配置 |
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| 3.2 属性配置 |
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| 3.3 API配置 |
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| 3.4 注解配置 |
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| 4 示例 |
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| 4.1 启动时检查 |
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| 4.2 集群容错 |
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| 4.3 负载均衡 |
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| 4.4 线程模型 |
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| 4.5 直连提供者 |
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| 4.6 只订阅 |
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| <a href="../demos/只注册.html"> |
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| 4.7 只注册 |
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| </a> |
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| 4.8 静态服务 |
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| 4.9 多协议 |
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| 4.10 多注册中心 |
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| </a> |
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| 4.11 服务分组 |
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| 4.13 多版本 |
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| </a> |
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| <li class="chapter " data-level="1.5.13" data-path="../demos/分组聚合.html"> |
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| <a href="../demos/分组聚合.html"> |
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| 4.14 分组聚合 |
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| </a> |
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| 4.15 参数验证 |
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| </a> |
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| <li class="chapter " data-level="1.5.15" data-path="../demos/结果缓存.html"> |
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| 4.16 结果缓存 |
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| </a> |
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| 4.17 泛化引用 |
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| </a> |
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| <li class="chapter " data-level="1.5.17" data-path="../demos/泛化实现.html"> |
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| <a href="../demos/泛化实现.html"> |
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| 4.18 泛化实现 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.18" data-path="../demos/回声测试.html"> |
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| <a href="../demos/回声测试.html"> |
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| 4.19 回声测试 |
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| </a> |
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| <li class="chapter " data-level="1.5.19" data-path="../demos/上下文信息.html"> |
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| <a href="../demos/上下文信息.html"> |
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| 4.20 上下文信息 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.20" data-path="../demos/隐式参数.md"> |
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| <span> |
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| 4.21 隐式参数 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.21" data-path="../demos/异步调用.html"> |
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| <a href="../demos/异步调用.html"> |
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| 4.22 异步调用 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.22" data-path="../demos/本地调用.html"> |
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| <a href="../demos/本地调用.html"> |
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| 4.23 本地调用 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.23" data-path="../demos/参数回调.html"> |
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| <a href="../demos/参数回调.html"> |
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| 4.24 参数回调 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.24" data-path="../demos/事件通知.html"> |
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| <a href="../demos/事件通知.html"> |
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| 4.25 事件通知 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.25" data-path="../demos/本地存根.html"> |
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| <a href="../demos/本地存根.html"> |
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| 4.26 本地存根 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.26" data-path="../demos/本地伪装.html"> |
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| <a href="../demos/本地伪装.html"> |
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| 4.27 本地伪装 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.27" data-path="../demos/延迟暴露.html"> |
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| <a href="../demos/延迟暴露.html"> |
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| 4.28 延迟暴露 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.28" data-path="../demos/并发控制.html"> |
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| <a href="../demos/并发控制.html"> |
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| 4.29 并发控制 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.29" data-path="../demos/连接控制.html"> |
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| <a href="../demos/连接控制.html"> |
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| 4.30 连接控制 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.30" data-path="../demos/延迟连接.html"> |
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| <a href="../demos/延迟连接.html"> |
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| 4.31 延迟连接 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.31" data-path="../demos/粘滞连接.html"> |
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| <a href="../demos/粘滞连接.html"> |
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| 4.32 粘滞连接 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.32" data-path="../demos/令牌验证.html"> |
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| <a href="../demos/令牌验证.html"> |
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| 4.33 令牌验证 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.33" data-path="../demos/路由规则.html"> |
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| <a href="../demos/路由规则.html"> |
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| 4.34 路由规则 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.34" data-path="../demos/配置规则.html"> |
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| <a href="../demos/配置规则.html"> |
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| 4.35 配置规则 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.35" data-path="../demos/服务降级.html"> |
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| <a href="../demos/服务降级.html"> |
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| 4.36 服务降级 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.36" data-path="../demos/优雅停机.html"> |
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| <a href="../demos/优雅停机.html"> |
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| 4.37 优雅停机 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.37" data-path="../demos/主机绑定.html"> |
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| <a href="../demos/主机绑定.html"> |
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| 4.38 主机绑定 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.38" data-path="../demos/日志适配.html"> |
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| <a href="../demos/日志适配.html"> |
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| 4.39 日志适配 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.39" data-path="../demos/访问日志.html"> |
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| <a href="../demos/访问日志.html"> |
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| 4.40 访问日志 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.40" data-path="../demos/服务容器.html"> |
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| <a href="../demos/服务容器.html"> |
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| 4.41 服务容器 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.41" data-path="../demos/ReferenceConfig缓存.html"> |
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| <a href="../demos/ReferenceConfig缓存.html"> |
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| 4.42 Reference Config缓存 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.42" data-path="../demos/分布式事务.html"> |
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| <a href="../demos/分布式事务.html"> |
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| 4.43 分布式事务 |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.5.43" data-path="../reference-apiconf/api.html"> |
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| <a href="../reference-apiconf/api.html"> |
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| 5 API参考手册 |
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| </a> |
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| </li> |
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| </ul> |
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| </li> |
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| <li class="chapter " data-level="1.6" data-path="../reference-xmlconf/introduction.html"> |
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| <a href="../reference-xmlconf/introduction.html"> |
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| 5 schema配置参考手册 |
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| </a> |
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| <ul class="articles"> |
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| <li class="chapter " data-level="1.6.1" data-path="../reference-xmlconf/dubbo-service.html"> |
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| <a href="../reference-xmlconf/dubbo-service.html"> |
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| 5.1 dubbo:service |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.6.2" data-path="../reference-xmlconf/dubbo-reference.html"> |
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| <a href="../reference-xmlconf/dubbo-reference.html"> |
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| 5.2 dubbo:reference |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.6.3" data-path="../reference-xmlconf/dubbo-protocol.html"> |
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| <a href="../reference-xmlconf/dubbo-protocol.html"> |
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| 5.3 dubbo:protocol |
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| </a> |
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| |
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| </li> |
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| <li class="chapter " data-level="1.6.4" data-path="../reference-xmlconf/dubbo-registry.html"> |
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| <a href="../reference-xmlconf/dubbo-registry.html"> |
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| 5.4 dubbo:registry |
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| </a> |
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| |
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| </li> |
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| <li class="chapter " data-level="1.6.5" data-path="../reference-xmlconf/dubbo-monitor.html"> |
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| <a href="../reference-xmlconf/dubbo-monitor.html"> |
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| 5.5 dubbo:monitor |
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| </a> |
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| |
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| </li> |
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| <li class="chapter " data-level="1.6.6" data-path="../reference-xmlconf/dubbo-application.html"> |
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| <a href="../reference-xmlconf/dubbo-application.html"> |
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| 5.6 dubbo:application |
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| </a> |
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| |
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| </li> |
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| <li class="chapter " data-level="1.6.7" data-path="../reference-xmlconf/dubbo-module.html"> |
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| <a href="../reference-xmlconf/dubbo-module.html"> |
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| 5.7 dubbo:module |
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| </a> |
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| </li> |
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| <li class="chapter " data-level="1.6.8" data-path="../reference-xmlconf/dubbo-provider.html"> |
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| <a href="../reference-xmlconf/dubbo-provider.html"> |
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| 5.8 dubbo:provider |
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| </a> |
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| </li> |
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| <a href="../reference-xmlconf/dubbo-consumer.html"> |
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| 5.9 dubbo:consumer |
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| </a> |
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| 5.10 dubbo:method |
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| 5.11 dubbo:argument |
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| 5.12 dubbo:parameter |
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| </a> |
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| </li> |
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| 6 协议参考手册 |
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| 6.1 dubbo:// |
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| </a> |
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| 6.2 rmi// |
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| 6.3 hessian:// |
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| 6.6 thrift:// |
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| 6.7 memcached:// |
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| 9 maven插件参考手册 |
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| 10 服务化最佳实践 |
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| 11 推荐用法 |
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| <a href=".." >7.2 Zookeeper注册中心</a> |
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| <blockquote> |
| <p><img src="../sources/images/check.gif" alt="warning">建议使用dubbo-2.3.3以上版本的zookeeper注册中心客户端。</p> |
| <p><img src="../sources/images/check.gif" alt="warning"><strong>Zookeeper说明</strong><br><a href="http://zookeeper.apache.org" target="_blank">Zookeeper</a> 是Apacahe Hadoop的子项目,是一个树型的目录服务,支持变更推送,适合作为Dubbo服务的注册中心,工业强度较高,可用于生产环境,并推荐使用。</p> |
| <p><img src="../sources/images/check.gif" alt="warning"><strong>Zookeeper安装</strong><br>安装方式参见: <a href="admin-guide-install-manual#zookeeper注册中心安装">Zookeeper安装手册</a>,只需搭一个原生的Zookeeper 服务器,并将 <a href="user-guide-quick-start#快速启动">Quick Start</a> 中Provider和Consumer里的conf/dubbo.properties中的dubbo.registry.addrss的值改为zookeeper://127.0.0.1:2181即可使用。</p> |
| <p><img src="../sources/images/warning-3.gif" alt="warning"><strong>可靠性声明</strong><br>阿里内部并没有采用Zookeeper做为注册中心,而是使用自己实现的基于数据库的注册中心,即:Zookeeper注册中心并没有在阿里内部长时间运行的可靠性保障,此Zookeeper桥接实现只为开源版本提供,其可靠性依赖于Zookeeper本身的可靠性。</p> |
| <p><img src="../sources/images/warning-3.gif" alt="warning"><strong>兼容性声明</strong><br>因2.0.8最初设计的zookeeper存储结构不能扩充不同类型的数据,2.0.9版本做了调整,所以不兼容,需全部改用2.0.9版本才行,以后的版本会保持兼容2.0.9。2.2.0版本改为基于zkclient实现,需增加zkclient的依赖包,2.3.0版本增加了基于curator的实现,作为可选实现策略。</p> |
| </blockquote> |
| <p><img src="../sources/images/zookeeper.jpg" alt="/user-guide/images/zookeeper.jpg"></p> |
| <h5 id="流程说明:">流程说明:</h5> |
| <ul> |
| <li>服务提供者启动时: 向/dubbo/com.foo.BarService/providers目录下写入自己的URL地址。</li> |
| <li>服务消费者启动时: 订阅/dubbo/com.foo.BarService/providers目录下的提供者URL地址。并向/dubbo/com.foo.BarService/consumers目录下写入自己的URL地址。</li> |
| <li>监控中心启动时: 订阅/dubbo/com.foo.BarService目录下的所有提供者和消费者URL地址。</li> |
| </ul> |
| <h5 id="支持以下功能:">支持以下功能:</h5> |
| <ul> |
| <li>当提供者出现断电等异常停机时,注册中心能自动删除提供者信息。</li> |
| <li>当注册中心重启时,能自动恢复注册数据,以及订阅请求。</li> |
| <li>当会话过期时,能自动恢复注册数据,以及订阅请求。</li> |
| <li>当设置 <code><dubbo:registry check="false" /></code> 时,记录失败注册和订阅请求,后台定时重试。</li> |
| <li>可通过 <code><dubbo:registry username="admin" password="1234" /></code> 设置zookeeper登录信息。</li> |
| <li>可通过 <code><dubbo:registry group="dubbo" /></code> 设置zookeeper的根节点,不设置将使用无根树。</li> |
| <li>支持 <code>*</code> 号通配符 <code><dubbo:reference group="*" version="*" /></code>,可订阅服务的所有分组和所有版本的提供者。</li> |
| </ul> |
| <p>在provider和consumer中增加zookeeper客户端jar包依赖:</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dependency</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>org.apache.zookeeper<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>zookeeper<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">version</span>></span>3.3.3<span class="hljs-tag"></<span class="hljs-name">version</span>></span> |
| <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span> |
| </code></pre> |
| <p>或直接下载:<a href="http://repo1.maven.org/maven2/org/apache/zookeeper/zookeeper" target="_blank">http://repo1.maven.org/maven2/org/apache/zookeeper/zookeeper</a></p> |
| <p>支持zkclient和curator两种Zookeeper客户端实现:</p> |
| <h5 id="zkclient-zookeeper-registry">ZKClient Zookeeper Registry</h5> |
| <p>从2.2.0版本开始缺省为zkclient实现,以提升zookeeper客户端的健状性。ZKClient是Datameer开源的一个Zookeeper客户端实现,开源比较早,参见:<a href="https://github.com/sgroschupf/zkclient" target="_blank">https://github.com/sgroschupf/zkclient</a></p> |
| <p>缺省配置:</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:registry</span> <span class="hljs-attr">...</span> <span class="hljs-attr">client</span>=<span class="hljs-string">"zkclient"</span> /></span> |
| </code></pre> |
| <p>或:</p> |
| <pre><code class="lang-sh">dubbo.registry.client=zkclient |
| </code></pre> |
| <p>或:</p> |
| <pre><code class="lang-sh">zookeeper://10.20.153.10:2181?client=zkclient |
| </code></pre> |
| <p>需依赖:</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dependency</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>com.github.sgroschupf<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>zkclient<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">version</span>></span>0.1<span class="hljs-tag"></<span class="hljs-name">version</span>></span> |
| <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span> |
| </code></pre> |
| <p>或直接下载:<a href="http://repo1.maven.org/maven2/com/github/sgroschupf/zkclient" target="_blank">http://repo1.maven.org/maven2/com/github/sgroschupf/zkclient</a></p> |
| <h5 id="curator-zookeeper-registry">Curator Zookeeper Registry</h5> |
| <p>从2.3.0版本开始支持可选curator实现。<a href="https://github.com/Netflix/curator" target="_blank">Curator</a> 是Netflix开源的一个Zookeeper客户端实现,比较活跃。</p> |
| <p>如果需要改为curator实现,请配置:</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:registry</span> <span class="hljs-attr">...</span> <span class="hljs-attr">client</span>=<span class="hljs-string">"curator"</span> /></span> |
| </code></pre> |
| <p>或:</p> |
| <pre><code class="lang-sh">dubbo.registry.client=curator |
| </code></pre> |
| <p>或:</p> |
| <pre><code class="lang-sh">zookeeper://10.20.153.10:2181?client=curator |
| </code></pre> |
| <p>需依赖:</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dependency</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">groupId</span>></span>com.netflix.curator<span class="hljs-tag"></<span class="hljs-name">groupId</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">artifactId</span>></span>curator-framework<span class="hljs-tag"></<span class="hljs-name">artifactId</span>></span> |
| <span class="hljs-tag"><<span class="hljs-name">version</span>></span>1.1.10<span class="hljs-tag"></<span class="hljs-name">version</span>></span> |
| <span class="hljs-tag"></<span class="hljs-name">dependency</span>></span> |
| </code></pre> |
| <p>或直接下载:<a href="http://repo1.maven.org/maven2/com/netflix/curator/curator-framework" target="_blank">http://repo1.maven.org/maven2/com/netflix/curator/curator-framework</a></p> |
| <p>Zookeeper单机配置:</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:registry</span> <span class="hljs-attr">address</span>=<span class="hljs-string">"zookeeper://10.20.153.10:2181"</span> /></span> |
| </code></pre> |
| <p>或:</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:registry</span> <span class="hljs-attr">protocol</span>=<span class="hljs-string">"zookeeper"</span> <span class="hljs-attr">address</span>=<span class="hljs-string">"10.20.153.10:2181"</span> /></span> |
| </code></pre> |
| <p>Zookeeper集群配置:</p> |
| <pre><code class="lang-xml"> |
| <span class="hljs-tag"><<span class="hljs-name">dubbo:registry</span> <span class="hljs-attr">address</span>=<span class="hljs-string">"zookeeper://10.20.153.10:2181?backup=10.20.153.11:2181,10.20.153.12:2181"</span> /></span> |
| </code></pre> |
| <p>或:</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:registry</span> <span class="hljs-attr">protocol</span>=<span class="hljs-string">"zookeeper"</span> <span class="hljs-attr">address</span>=<span class="hljs-string">"10.20.153.10:2181,10.20.153.11:2181,10.20.153.12:2181"</span> /></span> |
| </code></pre> |
| <p>同一Zookeeper,分成多组注册中心:</p> |
| <pre><code class="lang-xml"><span class="hljs-tag"><<span class="hljs-name">dubbo:registry</span> <span class="hljs-attr">id</span>=<span class="hljs-string">"chinaRegistry"</span> <span class="hljs-attr">protocol</span>=<span class="hljs-string">"zookeeper"</span> <span class="hljs-attr">address</span>=<span class="hljs-string">"10.20.153.10:2181"</span> <span class="hljs-attr">group</span>=<span class="hljs-string">"china"</span> /></span> |
| <span class="hljs-tag"><<span class="hljs-name">dubbo:registry</span> <span class="hljs-attr">id</span>=<span class="hljs-string">"intlRegistry"</span> <span class="hljs-attr">protocol</span>=<span class="hljs-string">"zookeeper"</span> <span class="hljs-attr">address</span>=<span class="hljs-string">"10.20.153.10:2181"</span> <span class="hljs-attr">group</span>=<span class="hljs-string">"intl"</span> /></span> |
| </code></pre> |
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