Manage reservations
You can view and manage your capacity reservations on the Capacity reservations page. You can perform management tasks like adding or reducing DPUs, modifying workgroup assignments, and tagging or cancelling reservations.
To view and manage capacity reservations
Open the Athena console at https://console.aws.amazon.com/athena/
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If the console navigation pane is not visible, choose the expansion menu on the left.
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Choose Administration, Capacity reservations.
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On the capacity reservations page, you can perform the following tasks:
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To create a capacity reservation, choose Create capacity reservation.
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Use the search box to filter reservations by name or number of DPUs.
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Choose the status drop-down menu to filter by capacity reservation status (for example, Active or Cancelled). For information about reservation status, see Understand reservation status.
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To view details for a capacity reservation, choose the link for the reservation. The details page for the reservation includes options for editing capacity, adding workgroups, removing workgroups, and for cancelling the reservation.
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To edit a reservation (for example, by adding or removing DPUs), select the button for the reservation, and then choose Edit.
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To cancel a reservation, select the button for the reservation, and then choose Cancel.
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Understand reservation status
The following table describes the possible status values for a capacity reservation.
| Status | Description |
|---|---|
| Pending | Athena is processing your capacity request. Capacity is not ready to run queries. |
| Active | Capacity is available to run queries. |
| Failed | Your request for capacity was not completed successfully. Note that fulfillment of capacity requests is not guaranteed. Failed reservations count towards your account DPU limits. To release the usage, you must cancel the reservation. |
| Update pending | Athena is processing a change to the reservation. For example, this status occurs after you edit the reservation to add or remove DPUs. |
| Cancelling | Athena is processing a request to cancel the reservation. Queries that are still running in the workgroups that were using the reservation are allowed to finish, but other queries in the workgroup will use on-demand (non-provisioned) capacity. |
| Cancelled |
The capacity reservation cancellation is complete. Cancelled reservations remain in the console for 45 days. After 45 days, Athena will delete the reservation. During the 45 days, you cannot re-purpose or reuse the reservation, but you can refer to its tags and view its details for historical reference. Cancelled capacity is not guaranteed to be re-reservable at a future date. Capacity cannot be transferred to another reservation, AWS account or AWS Region. |
Understand Active DPUs and Target DPUs
In the list of capacity reservations in the Athena console, your reservation displays two DPU values: Active DPU and Target DPU.
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Active DPU – The number of DPUs that are available in your reservation to run queries. For example, if you request 100 DPUs, and your request is fulfilled, Active DPU displays 100.
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Target DPU – The number of DPUs that your reservation is in the process of moving to. Target DPU displays a value different than Active DPU when a reservation is being created, or an increase or decrease in the number of DPUs is pending.
For example, after you submit a request to create a reservation with 24 DPUs, the reservation Status will be Pending, Active DPU will be 0, and the Target DPU will be 24.
If you have a reservation with 100 DPUs, and edit your reservation to request an increase of 20 DPUs, the Status will be Update pending, Active DPU will be 100, and Target DPU will be 120.
If you have a reservation with 100 DPUs, and edit your reservation to request a decrease of 20 DPUs, the Status will be Update pending, Active DPU will be 100, and Target DPU will be 80.
During these transitions, Athena is actively working to acquire or reduce the number of DPUs based on your request. When Active DPU becomes equal to Target DPU, the target number has been reached and no changes are pending.
To retrieve these values programmatically, you can call the GetCapacityReservation API action. The API refers to Active
DPU and Target DPU as AllocatedDpus
and TargetDpus.
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