Monitor Load Balancer Capacity Unit reservation for your Application Load Balancer
Reservation Status
LCU reservation has four available status:
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pending ‐ Indicates the reservation it is in the process of provisioning.
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provisioned ‐ Indicates the reserved capacity is ready and available to use.
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failed ‐ Indicates the request cannot be completed at the time.
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rebalancing ‐ Indicates an availability zone has been added or removed and the load balancer is rebalancing capacity.
Reserved LCU
The ReservedLCUs metric is reported on a per-minute basis.
Capacity is reserved on an hourly basis. For example, if you have a LCU
reservation of 6,000, the one-hour total for ReservedLCUs is 6,000,
and the one-minute total is 100. To determine your reserved LCU utilization, refer to
the PeakLCUs metric. You can set CloudWatch alarms to compare the per-minute
Sum of PeakLCUs against your reserved capacity value, or
the per-hour Sum of ReservedLCUs, to determine whether
you have reserved enough capacity to meet your needs.
Monitor reserved capacity
The steps in this process explain how to check the status of a LCU reservation on your load balancer.
To view the status of a LCU reservation using the console
Open the Amazon EC2 console at https://console.amazonaws.cn/ec2/
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On the navigation pane, choose Load Balancers.
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Select the load balancer name.
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On the Capacity tab, you can view the Reservation Status and Reserved LCU value.
To monitor the status of the LCU reservation using Amazon CLI
Use the describe-capacity-reservation command.