Why Mid‑Sized Retailers Are Migrating from Lucidworks to OpenSearch
RBM Software
09.19.25
Article
Table of Contents
If you are running an e-commerce platform with millions of SKUs, your search engine is probably one of your top three infrastructure costs.
Retailers relying on Lucidworks Fusion often pay $250k to $500k per year in licenses plus $180k to $300k in infrastructure, only to be locked into a vendor that dictates their pace of innovation.
RBMsoft has helped retailers reduce search costs by 60 to 80 percent by migrating to OpenSearch, while maintaining or improving search quality, speed, and personalization.
The $800K Problem Hiding in Plain Sight
If you’re running an e-commerce platform with millions of SKUs, you know search isn’t just a feature—it’s your revenue engine. But here’s what most CTOs don’t realize: your search platform might be your biggest hidden cost center.
Consider this real case study: A retailer with moderate traffic was running Lucidworks Fusion with 47 nodes and 24 replicas per index, burning through nearly $1 million annually. The kicker? They only needed about 10% of that infrastructure to deliver the same performance.
The wake-up call came when they realized:
33% of companies cite reducing vendor lock-in as their top priority when choosing new tech
Their search infrastructure costs were growing 40% year-over-year
New AI features were taking 6-12 months to implement due to vendor roadmap delays
Migration seemed “impossible” due to proprietary data formats
Sound familiar?
The Business Case: Numbers That Will Make Your CFO Smile
Immediate Cost Impact
Real savings from companies that made the switch:
Metric
Lucidworks Fusion
OpenSearch
Improvement
Annual license fees
$250k–$500k
$0 (open source)
100% savings
Infrastructure cost
$180k–$300k
$80k–$120k
60%+ savings
Vector search speed
Baseline
9.5× faster
+850%
Index build speed (GPU)
Baseline
9.3× faster
+830%
Storage use
100%
66%
–33%
Time to deploy new features
Months
Weeks or days
3–4× faster
Why OpenSearch Wins for Mid-Sized Retailers
Open Governance = ControlGoverned by the Linux Foundation, OpenSearch’s roadmap is transparent. You can implement your own innovations without waiting for a vendor to approve them.
AI-Ready SearchNative support for vector search, hybrid lexical and semantic ranking, and custom NLP pipelines means you can integrate the latest capabilities without paying extra license fees.
Proven ScalabilityHorizontal scaling, smarter sharding, and storage compression allow you to handle tens of millions of SKUs with 60 to 70 percent fewer resources.
Fast ROIMost RBMsoft-led migrations pay back in under 12 months thanks to the combination of license elimination and infrastructure savings.
Why Mid-Size E-commerce Companies Are the Perfect Fit
You’re in the sweet spot if you have:
250-5,000 employees
Millions of SKUs in your catalog
$50M+ in annual e-commerce revenue
Growing AI/personalization requirements
Frustration with current search platform costs or limitations
The perfect storm driving migration:
Economic Pressure: Search platform costs scaling faster than revenue
AI Demand: Need for vector search, semantic capabilities, and LLM integration
Vendor Fatigue: Tired of waiting for roadmap features and paying premium for basic functionality
Competitive Pressure: Competitors moving faster with open-source innovation
The OpenSearch Advantage: Why It’s Not Just About Cost
70% cost reduction in vector operations = Budget for more AI features
40% better query throughput = Handle Black Friday traffic without breaking
2. Future-Proof Technology Stack
Immediate AI integration: No waiting for vendor to support latest LLMs
Community innovation: Access to cutting-edge search techniques as they emerge
Hybrid search capabilities: Combine traditional and semantic search for best results
3. Operational Freedom
No vendor lock-in: Own your data, control your destiny
Custom integrations: Build exactly what your business needs
Transparent roadmap: Know what’s coming and influence development priorities
Migration Reality Check: It’s Easier Than You Think
Common fears vs. reality:
❌ Fear: “Migration will take 12+ months and cost millions” ✅ Reality: Most migrations complete in 8-16 weeks with proper planning ❌ Fear: “We’ll lose critical functionality” ✅ Reality: OpenSearch offers feature parity plus new capabilities ❌ Fear: “Our team doesn’t have the expertise” ✅ Reality: Strong community support plus specialized consultancies like RBMsoft
The Migration Process
Week 1-2: Assessment and planning Week 3-6: Data export and schema mapping
Week 7-10: Pipeline rebuilding and testing
Week 11-14: Query optimization and tuning
Week 15-16: Go-live and monitoring setup
The Competitive Advantage: Why Early Movers Win
Companies migrating now gain several first-mover advantages:
Cost arbitrage: Reinvest savings into customer experience and marketing
Technology leadership: Implement AI search features ahead of competitors
Organizational learning: Build internal expertise in modern search technologies
Vendor independence: Never again be held hostage by licensing negotiations
The enterprise search market is at an inflection point. Companies that act now will:
Slash infrastructure costs by 60-80%
Accelerate AI implementation by 6-12 months
Improve search performance while reducing complexity
Future-proof their technology stack for the next decade
Those who wait will continue paying premium prices for commodity functionality while competitors race ahead with modern, cost-effective search solutions.
Next Steps: The Path Forward
If you’re spending $200K+ annually on search infrastructure, you have three options:
Status quo: Keep paying premium prices for diminishing returns
Band-aid solutions: Try to optimize current platform while costs continue rising
At RBMsoft, we’ve helped dozens of mid-size e-commerce companies successfully migrate from expensive proprietary platforms to high-performance OpenSearch implementations. Our proven methodology reduces risk, accelerates timelines, and ensures you capture maximum value from day one.
Contact us for a free search infrastructure assessment and discover your potential savings within 48 hours.
RBMsoft specializes in helping mid-size e-commerce companies optimize their search infrastructure for performance, cost, and agility. Our migration methodology has helped companies save over $50M in combined search infrastructure costs while improving search relevance and speed.