This topic describes how to release an E-MapReduce (EMR) cluster if it is no longer needed. You can release only pay-as-you-go clusters.
Prerequisites
- An EMR cluster is created. For more information, see Create a cluster.
- The cluster you want to release is in the Initializing, Running, or Idle state.
Limits
You can release only pay-as-you-go clusters. If you want to release a subscription cluster, submit a ticket.
Precautions
After you confirm the release of a cluster, the system performs the following operations
to handle the cluster:
- Forcibly terminates all jobs in the cluster.
- Terminates and releases all ECS instances that are created for the cluster.
The time needed to terminate and release the ECS instances depends on the size of the cluster but does not exceed 5 minutes. In most cases, the ECS instances can be released in seconds.