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
Background information
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 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 five minutes. In most cases, the ECS instances can be released in seconds.