On Managed Service for TimescaleDB, software updates are handled automatically by us, and you do not need to perform any actions to keep up to date.
Non-critical software updates are applied during a maintenance window that you can define to suit your workload. If we detect a security vulnerability that affects you, we might need to perform maintenance outside of the scheduled maintenance window.
Non-critical upgrades are made available before the upgrade is performed
automatically. During this time you can click
Apply upgrades to start the
upgrade at any time. However, after the time expires, usually around a week,
the upgrade is triggered automatically in the next available maintenance window
for your service. You can configure the maintenance window so that these
upgrades are started only at a particular time, on a set day of the week. If
there are no pending upgrades available during a regular maintenance window, no
changes are performed.
When you are considering your maintenance window schedule, you might prefer to choose a day and time that usually has very low activity, such as during the early hours of the morning, or over the weekend. This can help minimize the impact of a short service interruption. Alternatively, you might prefer to have your maintenance window occur during office hours, so that you can monitor your system during the upgrade.
Maintenance windowsection, click
Service Maintenance Windowdialog, select the day of the week and the time (in Universal Coordinated Time) you want the maintenance window to start. Maintenance windows can run for up to four hours.
Critical upgrades and security fixes are installed outside normal maintenance windows when necessary, and sometimes require a short outage.
Upgrades are performed as rolling upgrades where completely new server instances are built alongside the old ones. When the new instances are up and running they are synchronized with the old servers, and a controlled automatic failover is performed to switch the service to the new upgraded servers. The old servers are retired automatically after the new servers have taken over. The controlled failover is a very quick and safe operation and it takes less than a minute to get clients connected again. In most cases, there is five to ten second outage during this process.
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