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Why Mid‑Sized Retailers Are Migrating from Lucidworks to OpenSearch

RBM Software
09.19.25
RBM Software
Why Mid‑Sized Retailers Are Migrating from Lucidworks to OpenSearch

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:

MetricLucidworks FusionOpenSearchImprovement
Annual license fees$250k–$500k$0 (open source)100% savings
Infrastructure cost$180k–$300k$80k–$120k60%+ savings
Vector search speedBaseline9.5× faster+850%
Index build speed (GPU)Baseline9.3× faster+830%
Storage use100%66%–33%
Time to deploy new featuresMonthsWeeks or days3–4× faster

Why OpenSearch Wins for Mid-Sized Retailers

  1. 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.
  2. 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.
  3. Proven ScalabilityHorizontal scaling, smarter sharding, and storage compression allow you to handle tens of millions of SKUs with 60 to 70 percent fewer resources.
  4. Fast ROIMost RBMsoft-led migrations pay back in under 12 months thanks to the combination of license elimination and infrastructure savings.
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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:

  1. Economic Pressure: Search platform costs scaling faster than revenue
  2. AI Demand: Need for vector search, semantic capabilities, and LLM integration
  3. Vendor Fatigue: Tired of waiting for roadmap features and paying premium for basic functionality
  4. Competitive Pressure: Competitors moving faster with open-source innovation

The OpenSearch Advantage: Why It’s Not Just About Cost

1. Performance That Directly Impacts Revenue

  • 9.5x faster vector searches = Better product recommendations = Higher conversion rates
  • 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:

  1. Cost arbitrage: Reinvest savings into customer experience and marketing
  2. Technology leadership: Implement AI search features ahead of competitors
  3. Organizational learning: Build internal expertise in modern search technologies
  4. Vendor independence: Never again be held hostage by licensing negotiations

ROI Calculator: Your Potential Savings

For a typical mid-size e-commerce company:

  • Current Lucidworks costs: $750K/year
  • OpenSearch equivalent: $150K/year
  • Annual savings: $600K
  • 3-year total savings: $1.8M
  • Migration investment: $150-300K
  • Net 3-year benefit: $1.5-1.65M
  • ROI: 500-1000%

Plus intangible benefits: faster innovation, better search relevance, improved customer experience

What This Means for Your Business

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:

  1. Status quo: Keep paying premium prices for diminishing returns
  2. Band-aid solutions: Try to optimize current platform while costs continue rising
  3. Strategic migration: Join hundreds of companies already realizing 70%+ cost savings

Ready to explore option 3?

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.

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