ISPConfig fail to create MySQL database

Whem creating MySQL database in ISPConfig, no database get created. To debug, i disabled the cronjob. Created a database in ISPConfig control panel, run cronjob manually, it shows following error

This is because ISPConfig can’t connect to MySQL server for creating new MySQL database. To fix, edit file /usr/local/ispconfig/server/lib/mysql_clientdb.conf

Update MySQL password for user root on this file. The content of the file look like

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WHen restoring a MySQL database, i get following error

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Install MySQL as Service in Windows

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Deploy MySQL Server in Kubernetes using Helm

To install MySQL server in Kubernetes, run

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To create a server, run

Install MySQL client inside this server with

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You can get password by running

You can list packages installed using helm with

To delete, run

MySQL 8 apt Error The following signatures were invalid

When trying to install MySQL 8 on Ubuntu 18.04, i get following error

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Now apt update will work.

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On taking MySQL backup with mysqldump, i get following error

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This will give you current value of open_files_limit.

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MySQL Out of resources when opening file

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Verify it is changed with command

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When backing up a MySQL database using mysqldump command, got following error

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On Ubuntu 16.04 server with MySQL 5.7, when i run, i get following error.

To fix, this error, create a the folder and change ownership to user mysql

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Now kill the MySQL process with command

Start MySQL normally with