Circuit breaking exceptions

To resolve circuit breaking errors that are displayed in the logs:

• Limited free storage space can be resolved by increasing the overall storage space.
• High (constantly above 75%) heap space consumption can be resolved by adding more nodes to the cluster to split the workload.
• High CPU usage can be resolved by adding more nodes to the cluster to split the workload.

For more information, see https://www.elastic.co/guide/en/elasticsearch/reference/current/circuit-breaker.html