Calehot98 Ticket Jun 2026

| Item | Detail | |------|--------| | | CALEHOT‑98 | | Opened by | Jane Liu (Support – Tier‑2) | | Date/Time Opened | 2026‑03‑12 09:17 UTC | | Affected Service | CalEHot – Real‑time pricing engine (Java 17, Spring Boot) | | Production Scope | 4 AWS regions (us‑east‑1, us‑west‑2, eu‑central‑1, ap‑southeast‑2) | | SLA | 10 business days for “Critical – High Impact” tickets | | Stakeholders | - Product Owner (Mike Alvarez) - Platform Engineering (Team “Nimbus”) - Customer Success (Sarah Patel) - End‑User (Retail Partner “FastMart”) |

Ticket surfaced on 12 Mar 2026 and quickly evolved from a routine glitch into a multi‑disciplinary case study. The issue impacted 15 production endpoints , generated ≈ 2 GB of error logs , and caused a ~ 3‑hour service degradation for a key client segment. calehot98 ticket

| # | Action | Owner | Status | |---|--------|-------|--------| | 1 | Refactor CacheProvider → use ConcurrentHashMap + atomic putIfAbsent . | Nimbus – DevOps | Completed (v3.2.1‑fix‑racing) | | 2 | Add around cache warm‑up to ensure single‑writer semantics. | Nimbus – DevOps | Completed | | 3 | Deploy helm values correction ( replicaCount: 3 for all regions). | Platform – Release | Completed | | 4 | Introduce new metric cache_write_errors_total + alert threshold. | Observability Team | Completed | | 5 | Enrich CI pipeline with concurrency stress test (10 k RPS, 30 min). | QA – Automation | Implemented | | 6 | Update Incident Playbook – “Cache‑related race condition” checklist. | Incident Management | Drafted, under review | | 7 | Conduct post‑mortem walkthrough with customer success and share lessons internally. | PMO – Customer Success | Scheduled 2026‑04‑20 | | Item | Detail | |------|--------| | |

To resolve this issue, the following steps are recommended: | Nimbus – DevOps | Completed (v3