大约有 2,000 项符合查询结果(耗时:0.0089秒) [XML]

https://www.tsingfun.com/it/tech/1215.html 

构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...对域名、目录结构、正则规则针对http做一些分流。通过端口检测到服务器内部的故障,比如根据服务器处理网页返回的状态码、超时等等,并且会把返回错误的请求重新提交到另一个节点,不过其中缺点就是不支持url来检测。...
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linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...别用户,也可以通过域名、域后缀、文件类型、IP地址、端口和URL匹配等控制用户的访问,还可以使用时间区间对用户进行管理 -i选项:表示忽略列表值的大小写,否则Squid是区分大小写的。 列表值:针对不同的类型,列表值...
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MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...过MQTT over websocket来穿越防火墙,不需要开1883MQTT或8883MQTTS端口。三、MQTT发明人介绍Andrew Stanford-Clark拥有东英吉利大学计算机研究和数学学士学位,后来又获得了并行计算方向的博士学位。他于1991年加入IBM的“通信软件”小组。...
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How to manually expand a special variable (ex: ~ tilde) in bash

... Preferably, I'd go with either of these two: Charle's Duffy's solution Håkon Hægland's solution Original answer for historic purposes (but please don't use this) If I'm not mistaken, "~" will not be expanded by a bash script in that manner because it is treated as a literal string "~". You...
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tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...持RSS的网卡,可以根据TCP头部的某些信息位,比如来源ip端口,目标ip端口等,计算一个hash值,然后通过hash值在一个表里找到该数据要排入的接收队列。 Intel Ethernet Flow Director RSS解决了cpu的单核心负载高的问题,把不同的数...
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How does Stack Overflow generate its SEO-friendly URLs?

...uld be nice with a version that doesn't just drop accented characters like åäö but instead deaccentuate them to aao... ^^ – Oskar Duveborn Nov 16 '09 at 20:48 22 ...
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What is the best collation to use for MySQL with PHP? [closed]

I'm wondering if there is a "best" choice for collation in MySQL for a general website where you aren't 100% sure of what will be entered? I understand that all the encodings should be the same, such as MySQL, Apache, the HTML and anything inside PHP. ...
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LR性能指标解释 - 更多技术 - 清泛网 - 专注C/C++及内核技术

LR性能指标解释监控指标性能测试通常需要监控的指标包括:1.服务器Linux(包括CPU、Memory、Load、I O)。2.数据库:1.Mysql 2.Oracle(缓存命中、索引、...监控指标 性能测试通常需要监控的指标包括: 1.服务器Linux(包括CPU、Memory、...
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What is the difference between encode/decode?

... encoding. Use u'...'.encode(encoding). Example: >>> u'æøå'.encode('utf8') '\xc3\x83\xc2\xa6\xc3\x83\xc2\xb8\xc3\x83\xc2\xa5' >>> u'æøå'.encode('latin1') '\xc3\xa6\xc3\xb8\xc3\xa5' >>> u'æøå'.encode('ascii') UnicodeEncodeError: 'ascii' c...
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新浪是如何分析处理32亿条实时日志的? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...用以恢复用户查看或配置可视化界面时的错误操作。 监控报警方面,System Level的监控报警(如硬盘满、损坏、服务器宕机)直接使用了在新浪内部提供了多年服务的sinawatch;App Level(如Elasticsearch JVM Heap Usage过高,Kibana能否正...