add 2.7.0 release notes

2019-01-15 10:32:09 +08:00 · 2019-01-15 10:32:09 +08:00 · a15126272b
parent 5caa422add
commit a15126272b
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--- a/CHANGES.md
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 # Release Notes

-## 2.6.2
+## 2.7.0
+环境要求：需要Java 8及以上版本支持

-1. Hessian-lite serialization: revert locale serialization for compatibility, #1413
-2. Asset transfer to ASF, includeing pom, license, DISCLAIMER and so on, #1491
-3. Introduce of new dispatcher policy: EagerThreadpool, #1568
-4. Separate monitor data with group and version, #1407
-5. Spring Boot Enhancement, #1611
-6. Graceful shutdown enhancement
-   - Remove exporter destroy logic in AnnotationBean.
-   - Waiting for registry notification on consumer side by checking channel state.
-7. Simplify consumer/provider side check in RpcContext, #1444.
+请在[这里]()了解关于升级2.7.x版本的注意事项和兼容性问题

-Issues and Pull Requests, check [milestone-2.6.2](https://github.com/apache/incubator-dubbo/milestone/15).
+## New Features
+
+- 服务治理规则增强。
+  - 更丰富的服务治理规则，新增应用级别条件路由、Tag路由等
+  - 治理规则与注册中心解耦，增加对Apollo等第三方专业配置中心的支持，更易于扩展
+  -  新增应用级别的动态配置规则
+  -  规则体使用更易读、易用YAML格式
+
+- 外部化配置。支持读取托管在远程的集中式配置中心的dubbo.properties，实现应用配置的集中式管控。
+
+- 更精炼的注册中心URL，进一步减轻注册中心存储和同步压力，初步实现地址和配置的职责分离。
+
+- 新增服务元数据中心，负责存储包括服务静态化配置、服务定义（如方法签名）等数据，默认提供Zookeeper, Redis支持。此功能也是OPS实现服务测试、Mock等治理能力的基础。
+
+- 异步编程模式增强（限定于Dubbo协议）
+  - 原生CompletableFuture<T>签名接口支持
+  - 服务端异步支持
+  - 异步Filter链
+
+- 新增Protobuf序列化协议扩展
+
+- 新增ExpiringCache缓存策略扩展
+
+## Enhancements / Bugfixes
+
+- 负载均衡策略优化，包括ConsitentHash(#2190) 、LeastActive(#2171)、Random(#2597) 、RoundRobin(#2586) (#2650)
+
+- 升级第三方依赖：默认通信框架为netty 4、默认ZK客户端为Curator、Jetty 9k
+
+- 增加地址读取时对IPV6的支持(#2079)
+
+- 性能优化，链接关闭的情况下使得Consumer快速返回  (#2185)
+
+- 修复Jdk原生类型在kryo中的序列化问题 (#2178)
+
+- 修复Provider端反序列化失败后，没有及早通知Consumer端的问题 (#1903)
+
+
+## 升级与兼容性
+
+此次版本发布我们遵循了保持和老版本兼容的原则，尤其是在一些可能会破坏2.7版本与低版本互操作性的问题上，我们增加了一些兼容性代码，典型如服务治理规则、Package重命名、注册URL简化等。
+
+1. Package重命名
+
+com.alibaba.dubbo -> org.apache.dubbo
+
+2. 注册URL简化
+
+3. 服务治理规则
+
+4. 配置
+
+
+## 2.6.5
+
+Enhancements / Features：    
+
+- Reactor the generation rule for @Service Bean name [#2235](https://github.com/apache/incubator-dubbo/issues/2235) 
+- Introduce a new Spring ApplicationEvent for ServiceBean exporting [#2251](https://github.com/apache/incubator-dubbo/issues/2251) 
+- [Enhancement] the algorithm of load issue on Windows. [#1641](https://github.com/apache/incubator-dubbo/issues/1641)
+- add javadoc to dubbo-all module good first issue. [#2600](https://github.com/apache/incubator-dubbo/issues/2600) 
+- [Enhancement] Reactor the generation rule for @Service Bean name type/enhancement [#2235](https://github.com/apache/incubator-dubbo/issues/2235) 
+- Optimize LeastActiveLoadBalance and add weight test case. [#2540](https://github.com/apache/incubator-dubbo/issues/2540) 
+- Smooth Round Robin selection. [#2578](https://github.com/apache/incubator-dubbo/issues/2578) [#2647](https://github.com/apache/incubator-dubbo/pull/2647) 
+- [Enhancement] Resolve the placeholders for sub-properties. [#2297](https://github.com/apache/incubator-dubbo/issues/2297) 
+- Add ability to turn off SPI auto injection, special support for generic Object type injection. [#2681](https://github.com/apache/incubator-dubbo/pull/2681)
+
+
+Bugfixes：    
+
+- @Service(register=false) is not work. [#2063](https://github.com/apache/incubator-dubbo/issues/2063) 
+- Our customized serialization id exceeds the maximum limit, now it cannot work on 2.6.2 anymore. [#1903](https://github.com/apache/incubator-dubbo/issues/1903) 
+- Consumer throws RpcException after RegistryDirectory notify in high QPS. [#2016](https://github.com/apache/incubator-dubbo/issues/2016)   
+- Annotation @Reference can't support to export a service with a sync one and an async one . [#2194](https://github.com/apache/incubator-dubbo/issues/2194) 
+- `org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor#generateReferenceBeanCacheKey` has a bug. [#2522](https://github.com/apache/incubator-dubbo/issues/2522) 
+- 2.6.x Spring Event & Bugfix. [#2256](https://github.com/apache/incubator-dubbo/issues/2256) 
+- Fix incorrect descriptions for dubbo-serialization module. [#2665](https://github.com/apache/incubator-dubbo/issues/2665) 
+- A empty directory dubbo-config/dubbo-config-spring/src/test/resources/work after package source tgz. [#2560](https://github.com/apache/incubator-dubbo/issues/2560)
+- Fixed 2.6.x branch a minor issue with doConnect not using getConnectTimeout() in NettyClient.  (*No issue*). [#2622](https://github.com/apache/incubator-dubbo/pull/2622) 
+- Bean name of @service annotated class does not resolve placeholder. [#1755](https://github.com/apache/incubator-dubbo/issues/1755) 
+
+
+
+Issues and Pull Requests, check [milestone-2.6.5](https://github.com/apache/incubator-dubbo/milestone/21).
+
+## 2.6.4
+
+Enhancements / Features
+
+- Support access Redis with password, [#2146](https://github.com/apache/incubator-dubbo/pull/2146)
+- Support char array for GenericService, [#2137](https://github.com/apache/incubator-dubbo/pull/2137)
+- Direct return when the server goes down abnormally, [#2451](https://github.com/apache/incubator-dubbo/pull/2451)
+- Add log for trouble-shooting when qos start failed, [#2455](https://github.com/apache/incubator-dubbo/pull/2455)
+- PojoUtil support subclasses of java.util.Date, [#2502](https://github.com/apache/incubator-dubbo/pull/2502)
+- Add ip and application name for MonitorService, [#2166](https://github.com/apache/incubator-dubbo/pull/2166)
+- New ASCII logo, [#2402](https://github.com/apache/incubator-dubbo/pull/2402)
+
+Bugfixes
+
+- Change consumer retries default value from 0 to 2, [#2303](https://github.com/apache/incubator-dubbo/pull/2303)
+- Fix the problem that attachment is lost when retry, [#2024](https://github.com/apache/incubator-dubbo/pull/2024)
+- Fix NPE when telnet get a null parameter, [#2453](https://github.com/apache/incubator-dubbo/pull/2453)
+
+UT stability
+
+- Improve the stability by changing different port, setting timeout to 3000ms, [#2501](https://github.com/apache/incubator-dubbo/pull/2501)
+
+Issues and Pull Requests, check [milestone-2.6.4](https://github.com/apache/incubator-dubbo/milestone/19).
+
+## 2.6.3
+
+Enhancements / Features
+
+- Support implicit delivery of attachments from provider to consumer, #889
+- Support inject Spring bean to SPI by bean type, #1837
+- Add generic invoke and attachments support for http&hessian protocol, #1827
+- Get the real methodname to support consistenthash for generic invoke, #1872
+- Remove validation key from provider url on Consumer side, config depedently, #1386
+- Introducing the Bootstrap module as a unified entry for Dubbo startup and resource destruction, #1820
+- Open TCP_NODELAY on Netty 3, #1746
+- Support specify proxy type on provider side, #1873
+- Support dbindex in redis, #1831
+- Upgrade tomcat to 8.5.31, #1781
+
+Bugfixes
+
+- ExecutionDispatcher meet with user docs, #1089
+- Remove side effects of Dubbo custom loggers on Netty logger, #1717
+- Fix isShutdown() judge of Dubbo biz threadpool always return true, #1426
+- Selection of invoker node under the critical condition of only two nodes, #1759
+- Listener cann't be removed during unsubscribe when use ZK as registry, #1792
+- URL parsing problem when user filed contains '@',  #1808
+- Check null in CacheFilter to avoid NPE, #1828
+- Fix potential deadlock in DubboProtocol, #1836
+- Restore the bug that attachment has not been updated in the RpcContext when the Dubbo built-in retry mechanism is triggered, #1453
+- Some other small bugfixes
+
+Performance Tuning
+
+- ChannelState branch prediction optimization. #1643
+- Optimize AtomicPositiveInteger, less memory and compute cost, #348
+- Introduce embedded Threadlocal to replace the JDK implementation, #1745
+
+Hessian-lite