摘要：Dockerfile 最佳实践 阅读全文

摘要：1、StackExchange.Redis.RedisConnectionException: It was not possible to connect to the redis server(s); to create a disconnected multiplexer, disable AbortOnConnectFail. Timeout 2、There is already an open DataReader associated with this Command which must be closed first 3、A second operation started on this context before a previous operation completed. This is usually caused by different threads using the same instance of DbContext, however instance members are not guaranteed to be 阅读全文

摘要：cpu 和内存不高，但是线上系统运行很卡 cpu使用率瞬时升高，甚至突破100%（负载突然升高） 其它服务(或者进程外的资源)传入负载能力超出（或提示连接超时）,比如提示（StackExchange.Redis.RedisConnectionException: It was not possible to connect to the redis server(s); to create a disconnected multiplexer, disable AbortOnConnectFail. Timeout at StackExchange.Redis.ConnectionMultiplexer.ConnectImpl(Func`1 multiplexerFactory, TextWriter log)） 也可能是一次显示为"较长"的数据库查询 或者任何非cpu活动（如任何I/O或延迟），因此似乎非常I/O 操作随机需要的时间比它应该需要的时间长 线程数莫名奇妙的不断升高 阅读全文