{
  "id": "optimization",
  "title": "Cluster environment optimization",
  "url": "https://redis.io/docs/latest/operate/rs/8.0/clusters/optimize/optimization/",
  "summary": "Optimize your cluster environments for better performance.",
  "content": "Redis Software uses various algorithms to optimize\nperformance. As part of this process, Redis Software examines usage\nand load to adjust its runtime configuration. Depending\non your specific usage and load, Redis Software might take some\ntime to adjust for optimal performance.\n\nTo ensure optimal performance, you must run your workload several times\nand for a long duration until performance stabilizes.\n\n## Failure detection sensitivity policies\n\nYou can optimize your cluster's thresholds and timeouts for different environments using the `failure_detection_sensitivity` cluster policy:\n\n- `high` (previously known as `local-network watchdog_profile`) – high failure detection sensitivity, lower thresholds, and faster failure detection and failover\n\n- `low` (previously known as `cloud watchdog_profile`) – low failure detection sensitivity and higher tolerance for latency variance (also called network jitter)\n\nDepending on which policy you choose, Redis Software uses different\nthresholds to make operation-related decisions.\n\nThe default policy is `high` failure detection sensitivity for `local-network` environments. If you are\nrunning Redis Software in a cloud environment, you should change the\nconfiguration.\n\n## Change failure detection sensitivity\n\nTo change the cluster's `failure_detection_sensitivity`, run one of the following [`rladmin`](https://redis.io/docs/latest/operate/rs/references/cli-utilities/rladmin/tune#tune-cluster) commands.\n\n- For Redis Software version 6.4.2-69 and later, run:\n\n    ```sh\n    rladmin tune cluster failure_detection_sensitivity [ low | high ]\n    ```\n\n- For Redis Software version 6.4.2-61 and earlier, run:\n\n    ```sh\n    rladmin tune cluster watchdog_profile [ cloud | local-network ]\n    ```\n\nIf Redis Software still\ndoes not meet your performance expectations after following these instructions, [contact support](https://redis.com/company/support/) for help optimizing your environment.\n",
  "tags": ["docs","operate","rs"],
  "last_updated": "2026-07-23T12:05:56-05:00"
}