2 posts tagged with "operations"

Log indices grow without bound unless you manage them. OpenSearch Index State Management (ISM) lets you define policies that automatically roll over active write indices when they hit a size or document threshold, and delete old ones after a retention period. This post shows how to build and verify a complete lifecycle policy on a live OpenSearch 2.19.1 cluster managed by FoundryDB.

All commands use YOUR_OPENSEARCH_HOST and YOUR_PASSWORD as placeholders.

OpenSearch index mappings are immutable once data is indexed. Changing a field type (for example, from text to keyword for a product SKU) or adding an analyzer to an existing field requires creating a new index and moving data into it. The challenge is doing this without taking your search API offline. The answer is aliases combined with the _reindex API. This post demonstrates the full pattern on a live OpenSearch 2.19.1 cluster managed by FoundryDB.

All commands use YOUR_OPENSEARCH_HOST and YOUR_PASSWORD as placeholders.