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Posted to commits@servicecomb.apache.org by GitBox <gi...@apache.org> on 2020/01/11 06:19:55 UTC

[GitHub] [servicecomb-java-chassis] zhufeizzz opened a new issue #1525: CSE能支持服务端异步吗？

zhufeizzz opened a new issue #1525: CSE能支持服务端异步吗？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1525
 
 
   类似于SpringMVC的@Async注解，长时间运行的服务，不需要返回值。
   
   AsyncRestTemplate支持客户端异步，实际还是占用Http请求，客户端服务端保持连接。
   
   没找到相关的说明，难道一定要在服务端代码里面自己放到异步队列？
   

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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #1525: CSE能支持服务端异步吗？

Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #1525: CSE能支持服务端异步吗？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1525#issuecomment-573287538
 
 
   不用。 java-chassis的运行机制和SpringMVC不同。 默认情况下，java-chassis的业务执行都是在独立线程池执行，不占用http请求。 不需要```@async```标签。 你还可以非常简洁的通过配置将某个不同的业务接口，[配置为使用独立的线程池执行](https://docs.servicecomb.io/java-chassis/zh_CN/build-provider/thread-pool.html)
   
   可以通过[设计](https://servicecomb.apache.org/cn/docs/open-design/)和[Spring Boot集成](https://docs.servicecomb.io/java-chassis/zh_CN/using-java-chassis-in-spring-boot/using-java-chassis-in-spring-boot.html)了解运行时差异
   
   

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[GitHub] [servicecomb-java-chassis] zhufeizzz commented on issue #1525: CSE能支持服务端异步吗？

Posted by GitBox <gi...@apache.org>.
zhufeizzz commented on issue #1525: CSE能支持服务端异步吗？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1525#issuecomment-573291100
 
 
   > 不用。 java-chassis的运行机制和SpringMVC不同。 默认情况下，java-chassis的业务执行都是在独立线程池执行，不占用http请求。 不需要`@async`标签。 你还可以非常简洁的通过配置将某个不同的业务接口，[配置为使用独立的线程池执行](https://docs.servicecomb.io/java-chassis/zh_CN/build-provider/thread-pool.html)
   > 
   > 可以通过[设计](https://servicecomb.apache.org/cn/docs/open-design/)、[线程池模型](https://docs.servicecomb.io/java-chassis/zh_CN/general-development/thread-model.html)和[Spring Boot集成](https://docs.servicecomb.io/java-chassis/zh_CN/using-java-chassis-in-spring-boot/using-java-chassis-in-spring-boot.html)了解运行时差异
   
   你们可能没理解我的意思，我是想长任务立马返回Null给客户端，释放HTTP连接。
   如果自己写代码的话就是接收到请求，放入线程池队列，然后return void.

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[GitHub] [servicecomb-java-chassis] liubao68 edited a comment on issue #1525: CSE能支持服务端异步吗？

Posted by GitBox <gi...@apache.org>.
liubao68 edited a comment on issue #1525: CSE能支持服务端异步吗？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1525#issuecomment-573287538
 
 
   不用。 java-chassis的运行机制和SpringMVC不同。 默认情况下，java-chassis的业务执行都是在独立线程池执行，不占用http请求。 不需要```@async```标签。 你还可以非常简洁的通过配置将某个不同的业务接口，[配置为使用独立的线程池执行](https://docs.servicecomb.io/java-chassis/zh_CN/build-provider/thread-pool.html)
   
   可以通过[设计](https://servicecomb.apache.org/cn/docs/open-design/)、[线程池模型](https://docs.servicecomb.io/java-chassis/zh_CN/general-development/thread-model.html)和[Spring Boot集成](https://docs.servicecomb.io/java-chassis/zh_CN/using-java-chassis-in-spring-boot/using-java-chassis-in-spring-boot.html)了解运行时差异
   
   

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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #1525: CSE能支持服务端异步吗？

Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #1525: CSE能支持服务端异步吗？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1525#issuecomment-573483119
 
 
   你说的这种方式目前没提供。可能需要你自己写一些代码将逻辑放到自己的线程池执行，并立即返回一个结果。 

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[GitHub] [servicecomb-java-chassis] yhs0092 commented on issue #1525: CSE能支持服务端异步吗？

Posted by GitBox <gi...@apache.org>.
yhs0092 commented on issue #1525: CSE能支持服务端异步吗？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1525#issuecomment-573287355
 
 
   Java-Chassis的异步资料在[这里](https://docs.servicecomb.io/java-chassis/zh_CN/general-development/reactive.html)，Java-Chassis叫这种模式 "Reactive"
   另外，异步和HTTP连接占用是两个概念。HTTP 1.1协议要求在一条连接上必须是一来一回的数据发送方式。不能有上一个请求的应答还没有被服务端返回，客户端就复用这条连接发送下一个请求的情况。所以即使你的代码是Reactive模式运行的，在HTTP 1下还是需要足够多的连接数来维持高并发。

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[GitHub] [servicecomb-java-chassis] zhufeizzz edited a comment on issue #1525: CSE能支持服务端异步吗？

Posted by GitBox <gi...@apache.org>.
zhufeizzz edited a comment on issue #1525: CSE能支持服务端异步吗？
URL: https://github.com/apache/servicecomb-java-chassis/issues/1525#issuecomment-573291100
 
 
   > 不用。 java-chassis的运行机制和SpringMVC不同。 默认情况下，java-chassis的业务执行都是在独立线程池执行，不占用http请求。 不需要`@async`标签。 你还可以非常简洁的通过配置将某个不同的业务接口，[配置为使用独立的线程池执行](https://docs.servicecomb.io/java-chassis/zh_CN/build-provider/thread-pool.html)
   > 
   > 可以通过[设计](https://servicecomb.apache.org/cn/docs/open-design/)、[线程池模型](https://docs.servicecomb.io/java-chassis/zh_CN/general-development/thread-model.html)和[Spring Boot集成](https://docs.servicecomb.io/java-chassis/zh_CN/using-java-chassis-in-spring-boot/using-java-chassis-in-spring-boot.html)了解运行时差异
   
   你们可能没理解我的意思，我是想长任务立马返回Null给客户端，释放HTTP连接。因为我只要确保服务调用了，不关注结果。
   如果自己写代码的话就是接收到请求，放入线程池队列，然后return void.

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