Spring批量corePoolSize VS节流限制 [英] Spring batch corePoolSize VS throttle-limit

问题描述

我想知道 corePoolSize 和限制限制之间的区别，因为Spring Batch属性定义了多线程配置。

I'd like to know the difference between corePoolSize and throttle-limit as Spring Batch attributes defining multi threading configuration.

由于这篇文章corePoolSize和maxPoolSize之间有什么区别，我在corePoolSize和maxPoolSize之间有区别Spring ThreadPoolTask​​Executor

但我的问题涉及 corePoolSize vs 限制限制 ......我找到了最好定义CorePoolSize = Throttle-limit，但我想知道......如果我定义例如：
CorePoolSize = 100和Throttle-limit = 200 ......会发生什么？是否会创建200个大小的线程池或100个？

But my issue concerns corePoolSize vs throttle-limit... I found that it's preferable to define CorePoolSize = Throttle-limit, but I'm wondering... if I define for example : CorePoolSize = 100 and Throttle-limit = 200... What happens ? Is a 200 sized thread pool that will be created or 100 ?

感谢您的任何澄清......

Thank you for any clarification...

推荐答案

核心池大小表示线程池执行程序将以 N 线程数开头。限制 T 表示，无论线程池中可用的线程数是多少，只使用 T 用于tasklet的那些线程。

The core pool size says a thread pool executor will start with N number of threads. A throttle-limit T says that, regardless of the number of threads available in the thread pool, only use T of those threads for a tasklet.

因此，您可以拥有一个核心池大小为8的线程池和两个限制为4的tasklet，在这种情况下，您将使用您的线程池。但是如果你只有一个限制为4的tasklet你将使用一半的线程池。

So you can have a thread pool with a core pool size of 8 and two tasklets with throttle limit of 4 in that case you will be utilizing your thread pool. But if you only have one tasklet with a throttle limit of 4 you will be utilizing one half of the thread pool.

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