# `IndicesIndexSettingsLifecycleStep` [interface-IndicesIndexSettingsLifecycleStep]

| Name | Type | Description |
| - | - | - |
| `wait_time_threshold` | [Duration](./Duration.md) | Time to wait for the cluster to resolve allocation issues during an ILM shrink action. Must be greater than 1h (1 hour). See Shard allocation for shrink. |