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What should I do if MySQL database is not running?
Should the database service restart without encountering errors, you can try to connect to it using the command below. Enter the root password when prompted. If you are greeted with “Welcome to the MySQL/MariaDB monitor” the connection was successful and the database service is running.
Why does MySQL not know where my database is?
The output will list all files in that directory, it should contain at least the following plus any databases you have created. If the data directory or socket has been moved and MySQL doesn’t know where they are, fix the configuration file to point to the correct directories. You can search for the folders with the following command.
How big is the MySQL database in rows?
Only two of these tables, namely, “transaction” and “shift” are quite large (the first one have 1.5 million rows and shift has 23k rows). Now everything works fine and I don’t have problem with the current database size.
How big can a MySQL database get before performance degrades?
Best data store for billions of rows — If you mean ‘Engine’, then InnoDB. How big can a MySQL database get before performance starts to degrade — Again, that depends on the queries. I can show you a 1K row table that will meltdown; I have worked with billion-row tables that hum along.
Why is MySQL not listening to my website?
If your website cannot connect to your database, it is possible the service is simply not listening. Check your MySQL state, on Ubuntu and Debian systems this can be done with the following command. sudo service mysql status CentOS and other Red Hat variants use MySQL as well, but it is named MariaDB instead, so use this command instead.
Where are MySQL error logs stored in Debian?
Debian and Ubuntu servers store error logs to /var/log/mysql/error.log. You can read through the logs with ‘less’, but this might not be very convenient as the log includes more than just critical errors. Instead, search the logs using ‘grep’. Should you not be able to find anything within the most recent logs, check the archived ones as well.