Aiven for MySQL® concepts
MySQL max_connections
max_connections vs RAM
Understand MySQL backups
Aiven for MySQL databases are automatically backed-up, with full backups
Understand MySQL memory usage
MySQL memory utilization can appear high, even if the service is relatively idle.
MySQL replication
MySQL replication is always based on replicating logical changes. This means that the replication protocol may contain an actual statement that the target server should apply or it may have an entry saying update row with these old attributes to have these new attributes.
MySQL tuning for concurrency
Determining how much memory is available for queries, and tuning