PHP message: PHP Fatal error: Uncaught PDOException: SQLSTATE[08004] [1040] Too many connections

preface

The OJ, which was built before, suddenly made an HTTP 500 error this evening. When I opened the log, I found that the MySQL database collapsed.

Text

Then open the MySQL configuration file. The path of the configuration file is as follows

/etc/mysql/mysql.conf.d/mysqld.cnf

Max the number of links in it_ Change the connections to 1000, and then restart mysql.

Solution: pychar opens internal error

Forebay:

Open pychar software help – & gt; Edit custom VM options… File, open pycharm64.exe.vmoptions file, add

– javaagent:C :\Program Files\JetBrains\PyCharm2019.3.4\bin\JetbrainsCrack-release-enc.jar

Close the software and re open it to report an internal error

resolvent:

You can open the. Pycharm2019.3 folder (the version you downloaded) and delete it

PS: let’s take a look at the problem that win10 pychar can’t open and double-click no response

Pychar still can’t be opened. Enter the CMD as an administrator, enter the following command, and restart the computer;

netsh winsock reset

In the search box of the computer, enter windows power shell

Restart the computer, and then open pychar software, you can work normally

 

error: Your local changes to the following files would be overwritten by merge

The following error occurred when using git pull command today

The result is the above error prompt, translated by Youdao dictionary software, the content is (error: your local changes to the following files will be merged and covered)

Using git log — oneline to check the log, you didn’t get the code. You checked a lot of information and other big men’s blogs on the Internet

The following git instruction method is used   It means to abandon local modification and directly override

1 git reset --hard
2 git pull

MarkDownPad 2 HTML Reading Error

MarkDownPad 2 HTML Reading Error

Question:

when “HTML reading error” error occurs when opening markdownpad editor

Solution:

click the “yes” button on the error prompt interface

To install the plug-in:

Download awesomium_ v1.6.6_ sdk_ The win.exe plug-in can be installed by default all the way 0

Ies HTP to 500.19 – Internal Server

The errors are as follows:
repair method:

    add the permission of everyone to the folder (I can solve it successfully through this method)
    add the necessary IIS function

    generally, these two moves can solve the problem! If there is a good way, welcome to comment