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Posted to notifications@dubbo.apache.org by "edwardlee03 (GitHub)" <gi...@apache.org> on 2019/01/20 08:56:55 UTC

[GitHub] [incubator-dubbo] edwardlee03 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

> 如果是网络原因，有哪些方能能够证明？

集成分布式链路追踪系统能快速定位是否是网络引起，对于偶发性问题使用tcpdump凭靠运气。对于`queues: 2000`，耗时可能在排队等待执行，不建议配置。`connections = 10`会使消费者应用至少创建10个cached线程池，我们前段时间在生产环境遇到，某提供者应用有5个服务设置了`connections=50`，对于单个提供者实例，每个消费者至少会创建50*5=250个cached线程池(`每服务每连接，见DubboProtocol#refer`)。

[ Full content available at: https://github.com/apache/incubator-dubbo/issues/1784 ]
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