Feature Overview
Elastic MapReduce (EMR) supports converting clusters from the pay-as-you-go billing mode to the monthly subscription billing mode, or converting nodes from the pay-as-you-go billing mode to the monthly subscription billing mode within hybrid billing clusters.
Conversion Rule
1. Support converting pay-as-you-go clusters to the monthly subscription clusters and supports converting pay-as-you-go nodes to monthly subscription nodes within hybrid billing clusters.
2. After converting from pay-as-you-go billing mode to the monthly subscription billing mode, conversion back to the pay-as-you-go billing mode is no longer supported. Operate with caution.
3. When converting a pay-as-you-go cluster to the monthly subscription billing mode, you should ensure the minimum number of nodes to be converted in the cluster mode (HA and non-HA modes). For details on the minimum number of nodes in each cluster, see the Node Type Description. 4. The current cluster includes MetaDB. If you need to convert the cluster to the monthly subscription billing mode, go to the TencentDB console first and convert the MetaDB instance to the monthly subscription billing mode. 5. Converting from the pay-as-you-go billing mode to the monthly subscription billing mode will generate a renewal order. You should complete the payment process for this order so that the conversion can take effect.
6. After the billing mode conversion and payment are successful, the cluster instance and nodes will be charged on a monthly subscription immediately. The start time of the new monthly subscription instance is the time of the successful conversion.
7. Repeated billing mode conversion operations cannot be performed on the instance until the payment is completed successfully.
8. When converting from pay-as-you-go billing mode to the monthly subscription billing mode, the billing mode for all disks (both the data disk and the system disk) will also be converted to the monthly subscription billing mode simultaneously.
Use Limits
1. The added Task nodes in auto-scaling do not support conversion to the monthly subscription billing mode.
2. Conversion is not supported when the remaining monthly subscription quota in the availability zone is less than the number of pay-as-you-go instances to be converted.
3. Only HOST nodes support conversion. Pod nodes do not support conversion.
Directions
Conversion from Pay-as-You-Go Billing Mode Clusters to Monthly Subscription Billing Mode Clusters
1. In the Cluster List, for pay-as-you-go clusters, go to Management > More > Convert from pay-as-you-go to monthly subscription. All nodes are selected by default to convert to the monthly subscription billing mode. Task nodes and Router nodes can be deselected to remain in the pay-as-you-go billing mode. 2. All nodes except the auto scaled-out Task nodes are selected by default for conversion to the monthly subscription billing. Task nodes and Router nodes can be deselected to remain in the pay-as-you-go billing mode.
Note：
If the current cluster contains MetaDB and needs to be converted to the monthly subscription billing mode, go to TencentDB console first and convert the MetaDB instance to the monthly subscription billing mode. After successful conversion, the cluster type in the cluster list will be changed to "Monthly Subscription", and the billing mode in the instance information will be changed to "Monthly Subscription". In the corresponding node list in resource management, the node billing type will be changed to "Monthly Subscription", and the expiration time and the auto-renewal status will be displayed correctly.
Conversion from Pay-as-You-Go Nodes in a Hybrid Billing Mode (Monthly Subscription) Cluster to Monthly Subscription Nodes
On the cluster details page, select Cluster Resources > Resource Management > More Operations > Convert from pay-as-you-go to monthly subscription to perform single-node conversion and node conversion in batches.
Node conversion in batches: On the resource management page, select multiple nodes of pay-as-you-go billing mode and of HOST resource type, which are not auto scaled-out Task nodes or Router nodes.
Single-node conversion: On the resource management page, select a node of pay-as-you-go billing mode and of HOST resource type, which is not an auto scaled-out Task node or Router node.
Note：
If you select a node of monthly subscription billing mode and of pod resource type, which is an auto scaled-out node, the Convert from pay-as-you-go to monthly subscription button becomes unclickable.