keep-alive

How do I keep a Perl script running on Unix after I log off?

流过昼夜 提交于 2019-12-04 20:08:49
I have a script that takes a lot of time to complete. Instead of waiting for it to finish, I'd rather just log out and retrieve its output later on. I've tried; at -m -t 03030205 -f /path/to/./thescript.pl nohup /path/to/./thescript.pl & And I have also verified that the processes actually exist with ps and at -l depending on which scheduling syntax i used. Both these processes die when I exit out of the shell. Is there a way to keep a script from terminating when I close the connection? We have crons here and they are set up and are working properly, but I would like to use at or nohup for

第八章、小节三keep-alive

▼魔方 西西 提交于 2019-12-04 19:07:25
主要缓存的是ajax中的json 我的路由中的内容被加载过一次,我就把路由中的内容放到内存中,下次再进入这个路由的时候,不需要重新加载页面,直接从内存中获取数据。 切换不同城市,调用不同城市数据 但是首页是通过不同城市来显示不同的数据,所以切换不同城市keep-alive不重新渲染数据。用了keep-alive后,会出现一个新的生命周期函数activated。 所以可以在activated中判断是否有数据变化,而重新加载数据。 来源: https://www.cnblogs.com/qdwz/p/11879270.html

HTTP和HTTPS概念

爷,独闯天下 提交于 2019-12-04 15:05:06
HTTP和HTTPS HTTP协议(HyperText Transfer Protocol,超文本传输协议):是一种发布和接收 HTML页面的方法。 HTTPS(Hypertext Transfer Protocol over Secure Socket Layer)简单讲是HTTP的安全版,在HTTP下加入SSL层。 SSL(Secure Sockets Layer 安全套接层)主要用于Web的安全传输协议,在传输层对网络连接进行加密,保障在Internet上数据传输的安全。 HTTP 的端口号为 80 , HTTPS 的端口号为 443 HTTP工作原理 网络爬虫抓取过程可以理解为 模拟浏览器操作的过程 。 浏览器的主要功能是向服务器发出请求,在浏览器窗口中展示您选择的网络资源,HTTP是一套计算机通过网络进行通信的规则。 HTTP的请求与响应 HTTP通信由两部分组成: 客户端请求消息 与 服务器响应消息 浏览器发送HTTP请求的过程: 当用户在浏览器的地址栏中输入一个URL并按回车键之后,浏览器会向HTTP服务器发送HTTP请求。HTTP请求主要分为“Get”和“Post”两种方法。 当我们在浏览器输入URL http://www.baidu.com 的时候,浏览器发送一个Request请求去获取 http://www.baidu.com 的html文件

PHP socket server, check if client is alive

╄→гoц情女王★ 提交于 2019-12-04 12:03:49
i have a php server listening for 1 c# client. When a connection is established, it is kept alive until client send command "quit" wich kills the PHP server. But when the c# client disconnect without the "quit" command (ie : clicking the close (x) button in the windows form) the server just keep listening, and cant receive any other connection from that client. Is there a way to check from the server side (PHP) if connection is still alive with client. My php server code is based on exemple1 of : http://php.net/manual/en/sockets.examples.php If someone is interested in reproducing the bug

How to set “Connection: keep-alive” header in lower case through HttpClient?

我的未来我决定 提交于 2019-12-04 11:26:25
I have a task where I need to be able to send Connection: keep-alive header the same way as it is done by the Firefox browser (notice that keep-alive has to be all lower-case): "Connection: keep-alive" However, I had no luck in achieving it using HttpClient. No matter what I try, the request always have "Connection: Keep-Alive" Here is an example code: var client = new HttpClient(); var request = new HttpRequestMessage() { RequestUri = new Uri("http://www.someURI.com"), Method = HttpMethod.Get, }; request.Headers.Connection.Clear(); // No need to do it as it is empty anyway request.Headers

HTTP requests with HttpClient too slow?

半世苍凉 提交于 2019-12-04 11:21:29
i'm trying to coding an android app that send some post values to a php file hosted at a dedicate server and store the array resoult the code is this HttpPost httppost; DefaultHttpClient httpclient; httppost = new HttpPost("http://IP/script.php"); HttpParams param = new BasicHttpParams(); param.setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1); // httppost.getParams().setBooleanParameter(CoreProtocolPNames.USE_EXPECT_CONTINUE, false); HttpProtocolParams.setContentCharset(param, "UTF-8"); httpclient = new DefaultHttpClient(param); ResponseHandler <String> res=new

paste.httpserver and slowdown with HTTP/1.1 Keep-alive; tested with httperf and ab

与世无争的帅哥 提交于 2019-12-04 09:46:37
问题 I have a web server based on paste.httpserver as an adapater between HTTP and WSGI. When I do performance measurements with httperf, I can do over 1,000 requests per second if I start a new request each time using --num-conn. If I instead reuse the connection using --num-call then I get about 11 requests per second, 1/100th of the speed. If I try ab I get a timeout. My tests are % ./httperf --server localhost --port 8080 --num-conn 100 ... Request rate: 1320.4 req/s (0.8 ms/req) ... and % .

Angular 6 ng-idle

独自空忆成欢 提交于 2019-12-04 05:19:50
问题 I have an Angular Project which is working well and I'm implementing NG-IDLE and KeepAlive in order to keep the session fresh and to log a user out before the API session expires. My issue is that the ng-idle is also operating on the login page, which is obviously not required, as when it does time out, it will take the person to the login page. So I have the ng-idle and KeepAlive up and running in my app.component.ts but since I'm using lazy loading, I also have an authentication.module.ts

Why aren't persistent connections supported by URLLib2?

陌路散爱 提交于 2019-12-04 04:44:00
After scanning the urllib2 source, it seems that connections are automatically closed even if you do specify keep-alive. Why is this? As it is now I just use httplib for my persistent connections... but wonder why this is disabled (or maybe just ambiguous) in urllib2. It's a well-known limit of urllib2 (and urllib as well). IMHO the best attempt so far to fix it and make it right is Garry Bodsworth's coda_network for Python 2.6 or 2.7 -- replacement, patched versions of urllib2 (and some other modules) to support keep-alive (and a bunch of other smaller but quite welcome fixes). Steven You

vue之keep-alive的使用

本秂侑毒 提交于 2019-12-04 02:50:08
keep-alive:是vue内置的一个组件,可以使被包含的组件 保留状态或避免重新渲染 。有两个生命周期函数:activated、deachtivated。在vue 2.1.0版本后新增了两个属性:include与exclude。 生命周期函数(在服务端渲染时,以下两个钩子函数不会被调用)   activated:在 keep-alive 组件激活是调用。如果每次进入页面的时候获取最新的数据,需要在activated阶段获取数据,承担原来created钩子函数中获取数据的任务   deachitivated:在 keep-alive 组件停用时调用。 属性   include:     类型:字符串(include="") 或 表达式(使用 v-bind:include="")     作用:只有名称匹配的组件才会被缓存   exclude( 优先级 > include ):     类型:字符串(exclude="") 或 表达式(使用 v-bind:exclude="")     作用:任何名称匹配的组件都不会被缓存   max:     类型:Number     作用:最多可以魂村多少组件实例 组件缓存实例 // 新增一个组件: export default { name: 'test-keep-alive', data () { return {