https://polymathmonkey.github.io/weblog/artifacts/yellowshardsinelastic/index.htmlIntroduction If you’re running Elasticsearch on a single node — like a Raspberry Pi or small lab setup like I am — you might notice some indices appear with a yellow health status. This show article explains what that means and how to fix it, especially in resource-constrained, single-node environments. What Does “Yellow” Mean? In Elasticsearch: green: All primary and replica shards are assigned and active. yellow: All primary shards are active, but at least one replica shard is unassigned. red: At least one primary shard is missing → critical! Why Yellow Happens on Single Nodes In single-node clusters, Elasticsearch cannot assign replica shards (because replicas must be on a different node). So any index with replicas will always be yellow unless:Hugoen-usAll text is licensed under a Creative Commons Attribution 4.0 International License.