keep-alive

How can I enable keep-alive?

由 冷暖自知 提交于 2019-11-28 23:45:25
问题 I ran a Google Page Speed and it says I scored 57/100 because I need to "Enable Keep-Alive" and "Enable Compression". I did some Google searches but I can't find anything. I even contacted my domain provider and asked them to turn it on, but they said it was already on. Long story short: 1.) What is Keep-Alive? 2.) How do I enable it? 回答1: Keep-alive is using the same tcp connection for HTTP conversation instead of opening new one with each new request. You basically need to set HTTP header

KeepAlive with WCF and TCP?

由 可紊 提交于 2019-11-28 21:31:15
I have a Windows Service hosting an advanced WCF service that communicates over TCP(netTCP) with protobuf.net, some times also with certificates. The receiveTimeout is set to infinite to never drop the connection due to inactivity. But from what I understand the connection could be dropped anyway so I have created a simple two way keepalive service method that the client is calling every 9 min to keep the connection alive. It's very important that the connection never breaks. Is this the correct way? Or could I simply remove my keep live because the receiveTimout is set to infinite? Edit :

HTTP keep-alive timeout

由 爷，独闯天下 提交于 2019-11-28 19:09:10
Can I specify the HTTP timeout or does the server impose a value? For example, if I do: telnet my.server.net 80 Trying X.X.X.X... Connected to my.server.net. Escape character is '^]'. GET /homepage.html HTTP/1.0 Connection: keep-alive Host: my.server.net HTTP/1.1 200 OK Date: Thu, 03 Oct 2013 09:05:28 GMT Server: Apache Last-Modified: Wed, 15 Sep 2010 14:45:31 GMT ETag: "1af210b-7b-4904d6196d8c0" Accept-Ranges: bytes Content-Length: 123 Vary: Accept-Encoding Keep-Alive: timeout=15, max=100 Connection: Keep-Alive Content-Type: text/html [...] The line: Keep-Alive: timeout=15, max=100 ..

Relation between HTTP Keep Alive duration and TCP timeout duration

由 我只是一个虾纸丫 提交于 2019-11-28 17:03:45
I am trying to understand the relation between TCP/IP and HTTP timeout values. Are these two timeout values different or same? Most Web servers allow users to set the HTTP Keep Alive timeout value through some configuration. How is this value used by the Web servers? is this value just set on the underlying TCP/IP socket i.e is the HTTP Keep Alive timeout and TCP/IP Keep Alive Timeout same? or are they treated differently? My understanding is (maybe incorrect): The Web server uses the default timeout on the underlying TCP socket (i.e. indefinite) regardless of the configured HTTP Keep Alive

【Vue实例生命周期】

由 纵然是瞬间 提交于 2019-11-28 15:47:47
目录 实例创建之前执行——beforeCreate 实例创建之后执行——created 挂载之前执行——beforeMount 挂载之后执行——mounted 数据更新之前执行——beforeUpdate 数据更新之后执行——updated 实例销毁之前执行——beforeDestroy 实例销毁之后执行——destroyed keep-alive组件激活时执行——activated keep-alive组件停用时执行——deactivated 原文: http://blog.gqylpy.com/gqy/278 有时候，我们需要在实例创建过程中进行一些初始化的工作，以帮助我们完成项目中更复杂更丰富的需求开发，针对这样的需求，Vu e提供给我们一系列的钩子函数。 本文将详细介绍Vue实例在创建和销毁的过程中我们可以使用的钩子函数。 这是官方文档提供的Vue实例生命周期图，我们结合这张图来进行钩子函数的解析。 @ *** 实例创建之前执行——beforeCreate ==除标签外，所有的vue需要的数据(data)、事件(methods)、标签(el)都不存在.== <body> <div id="app"> {{ name }} <button @click="myClick">点击修改数据</button> </div> <script> new Vue({ el: '#app'

How to keep alive Java objects?

由 ＊爱你＆永不变心＊ 提交于 2019-11-28 09:21:05
问题 I'm just thinking about a way of keeping away Java objects from garbage collection even if it is not being referred for a reasonable amount of time. How to do that? 回答1: [...] even if it is not being referred for a reasonable amount of time . If there's any chance what so ever that an object will be accessed in the future, the object will not be garbage collected . This is due to the fact that if you have a reference to the object, it won't be garbage collected, and if you don't have a

Disable Keep Alive in Apache HttpClient

由 爷，独闯天下 提交于 2019-11-28 08:34:07
问题 For some problem that we couldn't solve, I want to disable keep alive on Apache HttpClient 3.1. However, I couldn't find any resource on the Internet for that. Do you know how to do it? 回答1: You can disable HTTP 1.1 support on you method, i.e. httpMethod.setHttp11(false); but you will lost some other features. You can also try to force the connection header to ask the server to close the connection after its response: httpMethod.setRequestHeader("Connection", "close") . 来源： https:/

【Vue实例生命周期】

由 為{幸葍}努か 提交于 2019-11-28 08:24:31
目录 实例创建之前执行——beforeCreate 实例创建之后执行——created 挂载之前执行——beforeMount 挂载之后执行——mounted 数据更新之前执行——beforeUpdate 数据更新之后执行——updated 实例销毁之前执行——beforeDestroy 实例销毁之后执行——destroyed keep-alive组件激活时执行——activated keep-alive组件停用时执行——deactivated 原文: http://blog.gqylpy.com/gqy/278 有时候，我们需要在实例创建过程中进行一些初始化的工作，以帮助我们完成项目中更复杂更丰富的需求开发，针对这样的需求，Vu e提供给我们一系列的钩子函数。 本文将详细介绍Vue实例在创建和销毁的过程中我们可以使用的钩子函数。 这是官方文档提供的Vue实例生命周期图，我们结合这张图来进行钩子函数的解析。 @ *** 实例创建之前执行——beforeCreate ==除标签外，所有的vue需要的数据(data)、事件(methods)、标签(el)都不存在.== <body> <div id="app"> {{ name }} <button @click="myClick">点击修改数据</button> </div> <script> new Vue({ el: '#app'

How to use SO_KEEPALIVE option properly to detect that the client at the other end is down?

由 感情迁移 提交于 2019-11-28 06:56:05
so I was trying to learn the usage of option SO_KEEPALIVE in socket programming in C language under Linux environment. I created a server socket and used my browser to connect to it. It was successful and I was able to read the GET request, but I got stuck on the usage of SO_KEEPALIVE. I checked this link keepalive_description@tldg.org but I could not find any example which shows how to use it. As soon as I detect the client's request on accept() function I set the SO_KEEPALIVE option value 1 on the client socket. Now I dunno how to check if the client is down?, How to change the time interval

JSch: How to keep the session alive and up

由 送分小仙女□ 提交于 2019-11-28 06:33:01
I'm writing Java GUI program for static route management using SSH. My code is as follows: import com.jcraft.jsch.*; import java.io.*; public class Konsep { String status; static String username; static String hostname; String inputcommand; String output; static Session session; JSch jsch = new JSch(); public String status(String stringstatus) { stringstatus = status; return stringstatus; } public String InputCommand(String inputcommandstatus) { inputcommandstatus = inputcommand; return inputcommandstatus; } public void connect(String usernamelokal, String hostnamelokal, String password, int
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