Upgrading Large Databases

The majority of the modifications performed on the ARM database when upgraded take only minutes to complete. Occasionally, more modifications are needed when upgrading the database schema. These upgrades may take a long time, especially when they require modifications to the data stored within the database. As such, the time it takes to perform the upgrade may increase with the size of the database. Depending on the size of the database, such upgrades take hours instead of minutes.

The database upgrade preview process includes the age of the oldest data in the database as well as a rough estimate of the database size. Administrators should use this data to assess the current state of the database when deciding how and when to proceed with the database upgrade.

Administrators of large databases should consider the following options to ensure a smooth upgrade process:

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