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zrlw

after @Injectable a mybatis mapper which method has multiple parameters without @Param, following test classes which @Autowired the same mapper will throw BindingException

i resovled the problem by keep interfaces and abstract classes original, it's much better than restoring mocked classes after each test execution which will cause JMockit's few functions failure. at...

after @Injectable a mybatis mapper which method has multiple parameters without @Param, following test classes which @Autowired the same mapper will throw BindingException

I sent a email to jdk-dev mailing list to suggest that the maintainers add MethodParameter attribute in JvmtiClassFileReconstituter::write_method_info(), and got response emails that asked if i could reproduce the issue...

after @Injectable a mybatis mapper which method has multiple parameters without @Param, following test classes which @Autowired the same mapper will throw BindingException

OpenJDK assigned bug id: JDK-8240908, RetransformClass does not know about MethodParameters attribute. https://bugs.openjdk.java.net/browse/JDK-8240908

HashedWheelTimer worker thread might have accumulative delay problem

我看了netty的HashedWheelTimer代码并没有修复这个问题。 worker线程执行while循环时，如果有超时任务则直接用worker线程自己去执行，如果执行任务挂住了，那么worker线程也会挂住不动，后面的循环都会一直等着，这样超时机制就会错过正常时间点了。给netty提的issue： https://github.com/netty/netty/issues/11724

HashedWheelTimer worker thread might have accumulative delay problem

参照netty的做法，sleepTimeMs为0时改为等待1毫秒了。

HashedWheelTimer worker thread might have accumulative delay problem

还要单独创建线程池执行timeout任务，如果复用worker的threadFactory，当池子容量很小，timeout任务很多，任务就会积压，导致timeout任务处理时间严重滞后。

HashedWheelTimer worker thread might have accumulative delay problem

考虑再三还是选了newFixedThreadPool来执行timer task，相比cached线程池，fixed线程池消耗的资源相对较少。只是fixed线程池本身有无限队列的问题，但是如果把等待队列设为有界，我不知道设置多大合适，还有超出队列容量的任务要怎么处理。即使这样修改，worker thread能够不受task任务影响持续正常运转，但是如果timeout task任务本身代码效率低、执行慢，当排队等待执行的timeout task数量超过newFixedThreadPool容量时，依旧会出超时任务执行时间滞后的问题，这种情况只修改HashedWheelTimer是搞不定的。

HashedWheelTimer worker thread might have accumulative delay problem

event loop和event process的处理线程还是分离好一些，或者像apache httpclient5的FutureRequestExecutionService的构造函数那样，要求用户自己提供一个ExecutorService来执行异步task。

zrlw

nacos到nacos同步不到服务

使用体验

after @Injectable a mybatis mapper which method has multiple parameters without @Param, following test classes which @Autowired the same mapper will throw BindingException

after @Injectable a mybatis mapper which method has multiple parameters without @Param, following test classes which @Autowired the same mapper will throw BindingException

after @Injectable a mybatis mapper which method has multiple parameters without @Param, following test classes which @Autowired the same mapper will throw BindingException

HashedWheelTimer worker thread might have accumulative delay problem

HashedWheelTimer worker thread might have accumulative delay problem

HashedWheelTimer worker thread might have accumulative delay problem

HashedWheelTimer worker thread might have accumulative delay problem

HashedWheelTimer worker thread might have accumulative delay problem