Sohu Tech Products

Jul 31, 2024 · Databases

Elasticsearch ILM Migration Performance Optimization Strategies

To prevent IO saturation during Elasticsearch ILM hot‑to‑cold migrations, the article recommends batching migrations, fine‑tuning max_bytes_per_sec, upgrading cold‑node storage and adding hot nodes, and automating monitoring with scripts that pause or resume ILM based on real‑time utilization thresholds.