Overview of Maintenance
Oracle performs the maintenance of the DB system that starts within two hours of the Maintenance window start time that you define for the DB system. The maintenance is performed monthly.
If you do not define the Maintenance window start time, Oracle defines
one for you. It is recommended to confirm that the automatically selected window suits
your timings. While the maintenance is going on, the DB system status changes to
UPDATING
and the DB system is unavailable for a short time. During
this time, HeatWave Service does not monitor the metrics.
You have to manually update the release versions of the MySQL server, such as from version 8.0.27 to 8.0.28. See DB System Upgrades.
After the maintenance is complete, the DB system is returned to the
pre-maintenance state. If the DB system is in the INACTIVE
state when
the maintenance starts, it is returned to the INACTIVE
state after the
maintenance completes.
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