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java - zookeeper always disconnects and reconnects?

Deploying zookeeper on the spring boot project to register the service was normal at first. However, it will be disconnected and reconnected after a while, connected, and disconnected again. . The final result reported was that the reconnection failed. Do you want to set the session time? I set it f...

我想大声告诉你 2017-07-03 11:43:21

Looking for answers from nginx experts, under what circumstances does the nginx server disconnect from the client? What is the process of disconnection, including the process at the tcp level?

Under what circumstances does the nginx server disconnect from the client? What is the process of disconnection, including the process at the TCP level?

曾经蜡笔没有小新 2017-05-16 17:24:49

nginx - How to determine which language the website uses to develop the backend?

Question: How to determine which language the website uses to develop the backend?

巴扎黑 2017-05-16 17:03:58

Hello teacher, if the sub-window is opened through the main window event, how to determine whether the sub-window is closed?

Hello teacher, if the sub-window is opened through the main window event, how to determine whether the sub-window is closed?

湖北帛裳制衣**** 2019-07-24 09:19:46

javascript - How to tell if the user has switched to the current tab?

I noticed that YouTube only starts playing videos when the user switches to the current tab. So when a user opens multiple tabs, how to determine whether the user has switched to the current tab?

三叔 2017-07-05 10:38:13

javascript - How to use js to determine whether the page was opened from QQ Browser APP, WeChat, or QQ built-in browser?

How to use js to determine whether the page was opened from QQ Browser APP, WeChat, or QQ built-in browser? Since we are currently working on a sharing function, the plug-in cannot be directly called in the built-in browsers of WeChat and QQ. The user needs to be prompted to click on the upper right...

为情所困 2017-05-19 10:25:04

php - What is the significance of token in APP development? How to judge the user's status

I have been writing interfaces recently and I have read many answers about what is the meaning of token? How to judge the user's status on the APP? Currently, the token is used as a cookie on the web, and then the token is used to determine the status of the unused user, or which user is being reque...

PHP中文网 2017-06-28 09:22:44

Linux operation and maintenance - Linux is hacked and a certain process keeps making http requests. How to find it?

I deployed a 3proxy open proxy on a test Linux, and it suddenly became slow recently. Checking the log {code...} I judged that a program on the machine kept requesting the local proxy 219.82.139.89:12345, causing resource exhaustion. Some explanations. I don’t know why http://219.82.1 is requested.....

PHP中文网 2017-06-08 11:02:46

Python determines whether a variable exists

How to determine if a variable exists in Python? {Code...} This way, you can make a judgment before making a decision and report an error.

阿神 2017-07-05 10:35:30

javascript - How to distinguish development time dependencies from runtime dependencies?

How to determine in package.json whether the imported module is a runtime dependency (dependencies) or a development time dependency (devDependencies), such as which one is react?

大家讲道理 2017-06-14 10:53:59

Why can't PHP maintain a long connection when using Sever-Sent Event? Instead, it disconnects immediately after returning data.

As the title states, when PHP uses SSE, every time the connection is successful, data is returned, and then the connection is interrupted. Originally, SSE should maintain a long connection, and then return new data to the front end if the data changes. Why can't you maintain a long connection? The b...

无乐 2020-01-03 17:05:25

vim continuously verifies substitutions

{Code...} How to make it constantly validate the replacement

迷茫 2017-05-16 16:35:50

javascript - Some of the js in html are not loaded when the mobile phone is opened, but it is normal on the computer. What's going on?

The download page (html) of an app is placed on the server and opened through the mobile phone. The js part is not loaded and it is invalid. It is normal to open it on the computer. The js content is used to determine whether WeChat is opened or the browser is opened. The js part code is as follows

phpcn_u1582 2017-06-14 10:54:03

How to determine if composer is installed successfully?

How to determine if composer is installed successfully?

我爱Java 2018-02-19 13:32:39

javascript - How to determine the drawn graphics under CANVAS

How do I judge what I am drawing on the canvas? For example, I use lines to draw a heart or a V. . How to determine whether it is heart or V? . And judge the similarity between two people's paintings. The condition can be one stroke, not multiple strokes

PHP中文网 2017-05-16 13:27:54

Change mobile menu breakpoints - WordPress Twenty Two Three Theme

WordPress Navigation Block - Twenty Two Three Theme How to change CSS media query breakpoints so that the hamburger button appears on mobile devices and the full menu appears on wider screens? The hamburger minimized menu Dashboard->Appearance->Editor can be opened from the following location:

P粉085689707 2024-03-26 10:28:04

javascript - Determine user network environment

Please tell me how to use js to determine whether the user's network is useful? That is, I want to determine whether the user can use the external network? And make sure he has access to the Internet? God, please help me. . .

阿神 2017-07-05 11:07:13

It is determined that line 10 has a </tr> end tag. If it is determined that line 20 has no </tr> tag, then why is there no </tr> tag?

Determine that line 10 has a </tr> end tag. Determine that line 20 has no </tr> tag.

黄小川 2018-10-19 09:14:43

javascript - Can stat() access() open() readFile() in node.js determine whether a file exists?

My understanding is: stat() obtains file information; access() tests whether the file is available; open() opens the file; readFile() reads the file; then I can determine whether the file is available when using readFile(). But I see that some people use open first when writing static resource serve...

某草草 2017-06-24 09:43:34

javascript - In addition to judging UA, is there any other way to judge whether the request comes from mobile or PC?

UA is too easy to be forged. I would like to ask if there are other methods that are not easy to forge to determine whether the request comes from PC or mobile. I temporarily want to (check) a way to determine whether it is triggered based on the window.ontouchstart method, but it seems to be easy. ...

ringa_lee 2017-05-18 10:59:01