Elasticsearch to OpenSearch Migration Services
Migrate from Elasticsearch to OpenSearch with confidence. OpenSearch is the open-source fork of Elasticsearch 7.10 maintained by AWS with full API compatibility, no proprietary licensing restrictions, and a rapidly growing feature set including advanced ML and vector search capabilities.
BigData Boutique provides end-to-end Elasticsearch to OpenSearch migration services with zero downtime, zero data loss, and deep expertise in both platforms. As the world's leading OpenSearch consulting partner, we have migrated dozens of production Elasticsearch clusters to OpenSearch.
Trusted By
100%
API Compatibility
0
Data Loss Migrations
13+yrs
Elasticsearch & OpenSearch Expertise
Elasticsearch to OpenSearch Migration Services
Our migration services cover every aspect of moving from Elasticsearch to OpenSearch, from initial compatibility assessment through cutover and post-migration optimization.
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Comprehensive compatibility assessment identifying version gaps, breaking changes, and index settings requiring adjustment
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Zero-downtime migration with parallel cluster operation, snapshot restore, and cross-cluster replication for live cutover
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Index template, mapping, and settings migration with automatic translation of deprecated Elasticsearch-specific configurations
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Query DSL and aggregation compatibility validation with automatic detection and remediation of Elasticsearch-only query syntax
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Kibana to OpenSearch Dashboards migration preserving saved searches, visualizations, dashboards, and alerting rules
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Post-migration optimization and support to take full advantage of OpenSearch-native features and cost-reduction opportunities
Why Migrate from Elasticsearch to OpenSearch?
In 2021, Elastic changed its licensing model to SSPL, restricting commercial use. OpenSearch was created by AWS as an Apache 2.0 open-source fork of Elasticsearch 7.10, ensuring continued open-source availability and innovation. OpenSearch has since developed its own roadmap with ML-powered search, k-NN vector search, anomaly detection, and cross-cluster replication features that go beyond the original fork.
Organizations on Amazon OpenSearch Service (the managed AWS offering) are already running OpenSearch. For those still running self-managed Elasticsearch, migrating to OpenSearch unlocks access to Amazon OpenSearch Service with no per-node licensing, automated patching, and native AWS integrations—typically reducing total infrastructure cost by 30–50%.
With full API compatibility for Elasticsearch 7.10 clients, most applications require zero code changes. Our migration services make this transition fast, safe, and production-ready.
We Can Help You
Gain
Open Source Freedom
AWS Integration
ML & Vector Search
Managed Service Option
Reduce
Licensing Costs
Operational Overhead
Migration Risk
Downtime
Migration Compatibility & Versioning
OpenSearch maintains wire compatibility with Elasticsearch 7.10 clients. Most applications running against Elasticsearch 6.x, 7.x, or 8.x can be migrated to OpenSearch 1.x or 2.x with minimal or no application changes.
Our compatibility assessment identifies specific query patterns, plugin dependencies, or API usages that may require adjustment. We provide a detailed compatibility report and handle all required changes as part of the migration engagement.
FAQ
OpenSearch is API-compatible with Elasticsearch 7.10 for most common operations. REST API, Query DSL, and index management APIs are compatible. Some advanced commercial Elasticsearch features (security, alerting, ML) are replaced by OpenSearch equivalents. Our compatibility assessment identifies any gaps specific to your usage.
Yes. We use a combination of snapshot/restore, cross-cluster replication, and traffic shifting to achieve zero-downtime migrations. New documents are written to both clusters during the cutover window, and we validate data consistency before switching read traffic to OpenSearch.
Kibana dashboards can be migrated to OpenSearch Dashboards (the OpenSearch equivalent) with minimal manual effort. We handle the migration of saved searches, visualizations, dashboards, and index patterns. Some features specific to Kibana's commercial plugins may require equivalent OpenSearch configurations.
We recommend targeting the latest stable OpenSearch version unless specific constraints apply. OpenSearch 2.x offers the most features and longest support lifecycle. We assess your use case and application compatibility to recommend the right target version.
Yes, we are an AWS Advanced Consulting Partner with the Amazon OpenSearch Service Delivery designation. We frequently migrate self-managed Elasticsearch clusters to Amazon OpenSearch Service, and can often facilitate AWS-sponsored migration support for eligible transitions.
Most migrations take 2–8 weeks depending on cluster size, data volume, index complexity, and whether a managed service migration is involved. We provide a detailed timeline estimate after the initial compatibility assessment.
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