问题描述
Apache Camel 提供两种使用线程池的解决方案:
Apache Camel provide two solutions for using thread pool:
from("seda:stageName?concurrentConsumers=5").process(...)
和
from("direct:stageName").thread(5).process(...)
我想知道,这两种解决方案有什么区别?是否只是两种写相同的东西?有哪些用例?
I would like to know, what is the difference between the two solutions ? Is it just two kind of write the same thing or not ? What are the use cases ?
推荐答案
SEDA 组件
seda: 组件
提供异步 SEDA 行为,以便在 BlockingQueue 上交换消息,并在与生产者不同的线程中调用消费者.
SEDA Component
The seda: component
provides asynchronous SEDA behavior so that messages are exchanged on a BlockingQueue and consumers are invoked in a separate thread to the producer.
direct: 组件
在生产者发送消息交换时提供任何消费者的直接、同步调用.此端点可用于连接现有路由,或者如果与路由器位于同一 JVM 中的客户端想要访问路由.
The direct: component
provides direct, synchronous invocation of any consumers when a producer sends a message exchange. This endpoint can be used to connect existing routes or if a client in the same JVM as the router wants to access the routes.
线程池是一个可以在运行时根据负载动态增加/收缩的池,并发消费者始终是固定的.
The thread pool is a pool that dynamically can increase/shrink at runtime depending on load, the concurrent consumers is always fixed.
比如,就你而言,
并发消费者 - from("seda:stageName?concurrentConsumers=5").process(...)
对于线程池 - from("direct:stageName").thread(5).process(...)
现在,如果您总是希望有 5 个线程可用,请使用 Concurrent Consumers
并且如果您希望线程根据负载可用(但不超过 5 个)然后使用线程池
.
Now,if you always want to have 5 threads available then use Concurrent Consumers
and if you want the threads to be available as per the load(but not more than 5)then use Thread Pool
.
这篇关于“seda + concurrentConsumers"有什么区别?和“直接+线程";的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!