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Migration Assistant for OpenSearch

Migration Assistant for OpenSearch aids you in successfully performing an end-to-end, zero-downtime migration to OpenSearch from other search providers. It helps with the following scenarios:

  • Metadata migration: Migrating cluster metadata, such as index settings, aliases, and templates.
  • Backfill migration: Migrating existing or historical data from a source to a target cluster.
  • Live traffic migration: Replicating live ongoing traffic from a source to a target cluster.
  • Comparative tooling: Comparing the performance and behaviors of an existing cluster with a prospective new one.

This user guide focuses on conducting a comprehensive migration involving both existing and live data with zero downtime and the option to back out of a migration.

It’s crucial to note that migration strategies are not universally applicable. This guide provides a detailed methodology, based on certain assumptions detailed throughout, emphasizing the importance of robust engineering practices to ensure a successful migration.

Overview

Get familiar with the key components of Migration Assistant and evaluate your use case.

Deploying Migration Assistant

Follow step-by-step instructions to deploy Migration Assistant and prepare data for migration.

Migration phases

Execute your migration in phases—metadata, backfill, and traffic replay—for a controlled and validated transition.

Migration console

Use CLI commands provided by the migration console to orchestrate and monitor your migration process.

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