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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2021/11/12 02:49:39 UTC

[GitHub] [dubbo] shuohao commented on issue #1784: Dubbo调用超时,服务端历史统计的处理耗时很短且找不到对应超时上下文的超时日志

shuohao commented on issue #1784:
URL: https://github.com/apache/dubbo/issues/1784#issuecomment-966777235


   > > 除了网络问题,还可能有其他原因么,我司也出现了这种短时抖动,服务端完全是没有延迟的报错
   > 
   > 可能的原因: 1.请求阻塞在工作者队列里排队,消耗了大部分时间; 2.API.jar升级引起类不兼容加载不到,频繁加载某一个类会引起阻塞,可以看下ClassLoader源码。dubbo新版本已修复这个问题。 3.较长时间的GC停顿
   
   "请求阻塞在工作者队列里排队,消耗了大部分时间 " 这个通过什么来证明呢?  我们服务也遇到这问题,我猜测就是排队了 我想扩容你能解决 但是没有找到证据


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