embeded database

[Maxim Gusev]

I used a trial version of confluence after which I entered the key and the system swears on the h2 database since it is not suitable for the full version Can I use h2 database if I have 4 users and very little data?

[AnnWorley]

It sounds like you could benefit from Migrating to Another Database. Nic's remark was accurate regarding the catastrophic H2 failures. It usually entails data loss.

[Maxim Gusev]

ty so much

on this holidays will trying to install conf+mysql(or postgre)

[Igor M.]

Hey,

per design h2 DB is only for evaluation purposes, as stated in official documentation 

Embedded H2 Database.

If you are planning to use Confluence for production, regardless of a number of users, or contents, it would be best to just use external DB. There are several options to pick from as per Supported platforms

There is no preference for DB vendor but I found PostgreSQL quite lightweight on resources and easy enough to manage.

Regards,

Igor

[Nic Brough -Adaptavist-]

There  are good reasons for not using h2 in systems you might want to run as a trial or development - it doesn't scale and it can fail without warning, and when it does, it usually fails catastrophically.