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依赖注入-利用容器(DependencyInjection)创建依赖服务的生命周期 阅读全文
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泛型list转换为xml datapacket rowdata
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EF Core RollBack (RollBack 事务回滚失败分析) 阅读全文
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1、Linux文本编辑的四种方法
2、Linux中执行shell脚本的4种方法总结
3、Linux执行c代码 阅读全文
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本文概要:
1、Docker安装及常用命令
2、Docker中mysql 安装
3、linux中git安装 阅读全文
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Dockerfile 最佳实践 阅读全文
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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
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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