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The weekly maintenance window you define for Amazon RDS is just a place holder.It does not mean that maintenance happens every week. It only happens when there
by pmpkiran 16y ago
The weekly maintenance window you define for Amazon RDS is just a place holder.It does not mean that maintenance happens every week. It only happens when there are specific security or MyQL patches that need to be applied and is pre-announced in the forums.The maintenance window could also be used to schedule instance scaling events, during which, like you pointed out, there would be downtime. However, the downtime would be limited to the instance fail over time (typically less than 3 minutes) if you use a Multi-AZ deployment.
- mathrawka 16y agoAre you aware if they do the failover, then after it is successful perform maintenance? Or do they take the just stop the master server to do maintenance and let failover happen automatically? The first method would eliminate downtime. The second method would have that up to 3 minute downtime. Also, in my basic testing, I only had 1 out of 10 failovers be completed within 15 seconds. The rest took between 2 and 3 minutes. The longest one was slightly over 3 minutes.