java - Camel : stackoverflow error when route is called recursively

Question

我有一条 Camel 路线，它会 self 调用，直到满足特定条件为止。基本上的想法是实现路由重试。部署应用程序后，如果长时间重试，我会收到 stackoverflow 错误。

    [Camel (camel-1) thread #1 - Multicast] ERROR com.application.RouteName.lambda$configure$0 - Exception occurred during execution on the exchange: Exchange[ID-batchrater-310822922-1-383133832-34058-1530798326741-0-6]
    org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[ID-batchrater-310822922-1-383133832-34058-1530798326741-0-6]
        at org.apache.camel.util.ObjectHelper.wrapCamelExecutionException(ObjectHelper.java:1779)
        at org.apache.camel.impl.DefaultExchange.setException(DefaultExchange.java:351)

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        Caused by: java.lang.StackOverflowError: null
        at org.springframework.beans.factory.support.AbstractBeanFactory.transformedBeanName(AbstractBeanFactory.java:1117)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:239)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1084)
        at org.apache.camel.spring.spi.ApplicationContextRegistry.lookupByNameAndType(ApplicationContextRegistry.java:47)
        at org.apache.camel.impl.PropertyPlaceholderDelegateRegistry.lookupByNameAndType(PropertyPlaceholderDelegateRegistry.java:63)
        at org.apache.camel.component.bean.BeanInfo.createParameterMappingStrategy(BeanInfo.java:177)
        at org.apache.camel.component.bean.BeanInfo.<init>(BeanInfo.java:99)

我相信 stackoverflow 错误是由于路由的递归调用造成的，我更改了路由结构，现在重新传递由camel onException() 中可用的 retryDelivery 机制处理。而且我的重试次数可以是无限的，直到满足条件为止。

我需要知道采用这种方法是否有可能再次出现 stackOverFlow。

Answer 1

不，这是使用 onException 和其他错误处理功能来处理错误处理重新传递的正确方法。使用循环 EIP 会导致堆栈帧更长，因此不应该用于太长的循环。所以你做了正确的修复。