Confluence 6.15.1 installation issue with MySQL 5.7.27

[Sambit Kumar Patra]

Hi Team,

I'm trying to install the Jira & Confluence on the same Ubuntu machine, here I given the version details.

Ubuntu 16.04
Java 1.8.0_222
MySQL 5.7.27
Jira 8.4.2
Confluence 6.15.1

I did Jira MySQL installation with characterEncoding as utf8mb4 successfully.
Now while I'm trying for Confluence setup it is asking me to change the characterEncoding as utf8. 

What should I need to change the configuration in process to achieve this task?
If I configure both Jira & Confluence on same machine on same MySQL database what will be the issue?
Which are the best versions to be configure on Ubuntu 16.04 without issues?
I've license keys for these products.
Please find the screenshot.

[Sambit Kumar Patra]

@Alexis Robert @JP _AC Bielefeld Leader_ 
Thank you both the people, it helped me alot

[Alexis Robert]

Good to know @Sambit Kumar Patra , if you don't mind clinking on Accept Answer on the first post it will help users can also find this solution later, when they have the same issue :)

Thanks !

[Alexis Robert]

Hi @Sambit Kumar Patra , 

Jira and Confluence use a different character encoding, this should be setup when you create  the database.

For Confluence :

CREATE DATABASE confluencedb CHARACTER SET utf8 COLLATE utf8_bin;

For Jira :

CREATE DATABASE jiradb CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;

You don't need to change the entire MySQL server default setting as it can be set for each database that you create.

For Confluence, this guide can be useful for MySQL setup : https://confluence.atlassian.com/doc/database-setup-for-mysql-128747.html#DatabaseSetupForMySQL-3.Createdatabaseanddatabaseuser

Let me know if this helps, 

--Alexis

[JP _AC Bielefeld Leader_]

One remark:

If the database & the tables already exists, it is NOT sufficient to just change the character set / collation for the database. Every table MUST be converted to the new settings on it's own.

Best

JP