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https://issues.apache.org/jira/browse/SCB-548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16471548#comment-16471548
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ASF GitHub Bot commented on SCB-548:
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zhengyangyong commented on issue #693: [SCB-548] support gracefully shutdown
URL:
https://github.com/apache/incubator-servicecomb-java-chassis/pull/693#issuecomment-388278489
I had used a Semaphore in order to sync all invocation had finished.now
gracefully shutdown had fixed below order :
1. Unregister microservice instance from Service Center and close vertx
2. Wait all invocation finished (delete timeout mechanism in ShutdownHandler)
3. Notify all component do clean works via Event
4. Stop transport and cc vertx to prevent blocking exit
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> Support Gracefully Shutdown
> ---------------------------
>
> Key: SCB-548
> URL: https://issues.apache.org/jira/browse/SCB-548
> Project: Apache ServiceComb
> Issue Type: Improvement
> Components: Java-Chassis
> Affects Versions: java-chassis-1.0.0-m2
> Reporter: yangyongzheng
> Assignee: yangyongzheng
> Priority: Major
>
> We did not implement gracefully shutdown yet:
> ```java
> // 当程序退出时，进行相关清理，注意：kill -9 {pid}下无效
> // 1. 去注册实例信息
> // TODO 服务优雅退出
> if (applicationContext instanceof AbstractApplicationContext) {
> ((AbstractApplicationContext)
> applicationContext).registerShutdownHook();
> }
> ```
>
> And had got an issue :
> https://github.com/apache/incubator-servicecomb-java-chassis/issues/685 from
> user.
> So it's time we must do it and remove this TODO
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