==== Situation 1 : MySQL in the pagoda cannot start normally ====
Performance:
In the Ubuntu pagoda on the virtual machine, Wordpress cannot be deployed with one click, the database cannot be added, and MySQL and pagoda cannot be uninstalled/reinstalled.
analyze:
I once failed to install MySQL in the pagoda due to insufficient memory, so I installed MySQL separately on the console, and later deleted MySQL but port 3306 was still occupied.
solve:
1. Close port 3306
close mysql service
service mysql stop
still can't use this again
systemctl stop mysql
No more look for port 3306
netstat -anp |grep 3306
Close through the found port id assuming the id is 666
kill -9 PID 666
kill process
2. Restart the MySQL in the pagoda successfully
==== Situation 2: One-click deployment of WordPress fails due to failure to create a new database ====
- Performance:
Now I need to reset WorsPress, but I have not found a way to completely reset it, so I am going to delete the website in the upper pagoda of WordPress - the website. After deleting, re-deploy WordPress in the Pagoda-software store with one click, but the prompt fails: database creation failed, please check whether there is a database with the same name! As follows:
- analyze:
There may be library files of coin1news that have not been deleted cleanly in the database.
- solve:
In pagoda-database-phpMyAdmin, open access through the panel, as follows:
Username: root
Password: View in pagoda-database-root password
After entering, I found that this data has not been deleted.
Delete: Click on the database, and then click on the right to operate, as follows:
Click to delete the database (DROP), prompting an error: #3679 - Schema directory './coin1news_com/' does not exist, as follows:
So go back to the pagoda-file-root directory/www/server/data and manually create a coin1news_com folder, under the sun:
Go back to the browser phpMyAdmin page again to delete it, and it is successful, as follows:
