AWS – Amazon EMR on EC2 now gracefully replaces unhealthy core nodes

We are excited to introduce a new Amazon EMR on EC2 feature that enables automatic graceful replacement of unhealthy core nodes to ensure continued optimal cluster operations and prevent data loss. Additionally, EMR on EC2 will publish CloudWatch events to provide visibility into node health and recovery actions. These improvements are available for all Amazon EMR releases.

Read More for the details.