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Posted to dev@brpc.apache.org by GitBox <gi...@apache.org> on 2020/01/20 08:32:30 UTC
[GitHub] [incubator-brpc] guangpec1 opened a new issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
guangpec1 opened a new issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035
**Is your feature request related to a problem? (你需要的功能是否与某个问题有关?)**
由于项目需要，服务需要保留原有的Task Control 的基础上，新增加一个Task Control，两个task control 对bthread 进行调度，不知道这样的方案是否有风险？ 多谢 @jamesge
**Describe the solution you'd like (描述你期望的解决方法)**
**Describe alternatives you've considered (描述你想到的折衷方案)**
**Additional context/screenshots (更多上下文/截图)**
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[GitHub] [incubator-brpc] guangpec1 edited a comment on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
guangpec1 edited a comment on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035#issuecomment-576208924
戈神，我们自己内部实现了，现在测试还没有发现问题，我详细描述一下场景. 建立两个 Task Control 分别是 T1 和 T2. T1 中处理网络请求，然后T1将“算力较大”的部分发给 T2， T1 发给T2的只是function和arg， T2 执行funciton (本质上调度 start_background<false>(tid, attr, fn, arg))，T2 任务结束后通过signal 通知 T1. 我理解Task Control 本质上是bthread 调度引擎，与bthread 的资源解耦. 同时Task Control 每一个Thtread Worker (pthread) 是资源独立的，因此可以建立两个task control. 我的想法如上，有时间帮忙看一下，多谢@jamesge
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[GitHub] [incubator-brpc] guangpec1 closed issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
guangpec1 closed issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035
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[GitHub] [incubator-brpc] guangpec1 commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
guangpec1 commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035#issuecomment-576510871
主要将计算的部分拆分出来，主要是业务架构的需要. 比如说既有重调度的任务，又有重计算的任务. 将重计算和调度分开成两个Task Control. 降低互相影响. @cdjingit
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[GitHub] [incubator-brpc] guangpec1 edited a comment on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
guangpec1 edited a comment on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035#issuecomment-576208924
戈神，我们自己内部实现了，现在测试还没有发现问题，我详细描述一下场景. 建立两个 Task Control 分别是 T1 和 T2. T1 中处理网络请求，然后T1将“算力较大”的部分发给 T2， T1 发给T2的只是function和arg， T2 执行funciton (本质上调度 start_background<false>(tid, attr, fn, arg))，T2 任务结束后通过signal 通知 T1. 我理解Task Control 本质上是bthread 调度引擎，与bthread 的资源解耦. 同时Task Control 每一个Thtread Worker (pthread) 是资源独立的，因此可以建立两个task control. @jamesge
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[GitHub] [incubator-brpc] guangpec1 commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
guangpec1 commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035#issuecomment-576208924
戈神，我们自己内部实现了，现在测试还没有发现问题，我详细描述一下场景. 建立两个 Task Control 分别是 T1 和 T2. T1 中处理网络请求，然后T1将“算力较大”的部分发给 T2， T1 发给T2的只是function和arg， T2 执行funciton (本质上调度 start_background<false>(tid, attr, fn, arg))，T2 任务结束后通过signal 通知 T1. 我理解Task Control 本质上是bthread 调度引擎，与bthread 的资源解耦. 同时Task Control 每一个Thtread Worker (pthread) 是资源独立的，因此可以建立两个task control.
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[GitHub] [incubator-brpc] cdjingit commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
cdjingit commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035#issuecomment-576568156
> 主要将计算的部分拆分出来，主要是业务架构的需要. 比如说既有重调度的任务，又有重计算的任务. 将重计算和调度分开成两个Task Control. 降低互相影响. @cdjingit
目前brpc的设计，一般不需要区分io线程和工作线程。直白说如果工作线程超负荷了，io线程继续接受请求也只是会加剧系统压力。
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[GitHub] [incubator-brpc] jamesge commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
jamesge commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035#issuecomment-576169081
不可行，不要尝试。有一些变量是在pthread-local中的，如果要支持多套TaskControl，那些变量就得组织成数组，很麻烦。
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[GitHub] [incubator-brpc] guangpec1 commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
guangpec1 commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035#issuecomment-579781687
好的，多谢 @cdjingit @jamesge
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[GitHub] [incubator-brpc] cdjingit commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
cdjingit commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035#issuecomment-576491790
> 戈神，我们自己内部实现了，现在测试还没有发现问题，我详细描述一下场景. 建立两个 Task Control 分别是 T1 和 T2. T1 中处理网络请求，然后T1将“算力较大”的部分发给 T2， T1 发给T2的只是function和arg， T2 执行funciton (本质上调度 start_background(tid, attr, fn, arg))，T2 任务结束后通过signal 通知 T1. 我理解Task Control 本质上是bthread 调度引擎，与bthread 的资源解耦. 同时Task Control 每一个Thtread Worker (pthread) 是资源独立的，因此可以建立两个task control. 我的想法如上，有时间帮忙看一下，多谢@jamesge
现在io也是在bthread中执行的，这个把io拆分开来应对什么具体的问题呢？
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[GitHub] [incubator-brpc] guangpec1 commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
Posted by GitBox <gi...@apache.org>.
guangpec1 commented on issue #1035: 在一个服务中使用两个Task Control 是否会有影响？
URL: https://github.com/apache/incubator-brpc/issues/1035#issuecomment-604169887
@cdjingit 上面的方案，我们经过实践验证是可行，多谢.
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