[FEAT] 🟠 Phase 5: Traffic Migration (Weeks 13-15)
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- Java
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Description
Description
Goal: Gradually shift read traffic: 10% → 50% → 100% to 3.x cluster
Timeline: 3 weeks
Business Impact: None if successful - transparent
Status: 📋 Planned
Desired Outcome
Business Outcome:
Customers experience seamless, high-quality search results as we gradually transition all read traffic to the new OpenSearch 3.x infrastructure, with the ability to instantly rollback at any percentage if issues arise, ensuring zero customer impact throughout the migration.
Technical Outcome:
100% of read queries successfully migrated from OpenSearch 1.0 to 3.x cluster through a controlled 10% → 50% → 100% rollout, with each step validated for performance, accuracy, and stability before proceeding, and feature flags enabling instant rollback without code deployment.
Target Personas
- Developer teams
- Content teams
- DevOps teams
- System administrators (dotCMS)
Links
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Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
The issue names no files, tests, or entry points. Start by locating the existing OpenSearch 1.0 read-traffic routing and feature-flag configuration, then determine how rollout stages can be validated for performance, accuracy, and stability. Done means traffic reaches the 3.x cluster at 10%, 50%, and 100% with instant rollback available.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- infrastructure, search
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100