{"id":15157914,"url":"https://github.com/chandrakanthrck/chronoscore","last_synced_at":"2026-01-04T10:37:48.535Z","repository":{"id":256003027,"uuid":"854083600","full_name":"chandrakanthrck/ChronoScore","owner":"chandrakanthrck","description":"Real-time leaderboard system handling high traffic and providing live ranking updates.","archived":false,"fork":false,"pushed_at":"2024-09-09T02:37:52.000Z","size":67081,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-01-31T02:04:17.012Z","etag":null,"topics":["kafka","near-real-time","postgresql","redis-cache","scalable-applications","web-socket"],"latest_commit_sha":null,"homepage":"","language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/chandrakanthrck.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2024-09-08T11:19:21.000Z","updated_at":"2024-09-09T02:40:00.000Z","dependencies_parsed_at":null,"dependency_job_id":"b3501ed6-7045-4ba4-82fb-19f6df00b217","html_url":"https://github.com/chandrakanthrck/ChronoScore","commit_stats":{"total_commits":7,"total_committers":2,"mean_commits":3.5,"dds":0.2857142857142857,"last_synced_commit":"8d9f641a69ae7a8b89548b4601f4b13367877548"},"previous_names":["chandrakanthrck/chronoscore"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chandrakanthrck%2FChronoScore","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chandrakanthrck%2FChronoScore/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chandrakanthrck%2FChronoScore/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chandrakanthrck%2FChronoScore/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/chandrakanthrck","download_url":"https://codeload.github.com/chandrakanthrck/ChronoScore/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":237982355,"owners_count":19397248,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["kafka","near-real-time","postgresql","redis-cache","scalable-applications","web-socket"],"created_at":"2024-09-26T20:20:34.253Z","updated_at":"2025-10-24T14:31:14.191Z","avatar_url":"https://github.com/chandrakanthrck.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"# ChronoScore\n\nWelcome to ChronoScore, a cutting-edge real-time leaderboard system designed to handle massive scale and deliver instantaneous results. This project tackles the complex challenges of building and maintaining a high-performance leaderboard in a dynamic environment.\n\n## Overview\n\nDesigning a real-time leaderboard system is no small feat. It involves balancing performance, scalability, and data consistency. With ChronoScore, we dive deep into the intricacies of real-time data processing and present a robust solution for online platforms where user engagement and rewards drive success.\n\n### Scenario\n\nImagine an online gaming platform with the following requirements:\n\n- **Active Users**: 50 million\n- **Daily Active Users**: 10 million\n- **Leaderboard Update**: Real-time or near real-time\n- **Data Consistency**: Eventual consistency is acceptable\n- **Display**: Top 10 users and their ranks\n\nOur goal is to create a system that efficiently processes and displays the top performers, even under high load conditions.\n\n## System Design\n\n### Challenges\n\n1. **High Load Handling**: With millions of daily active users, the system must handle a significant volume of updates and queries without performance degradation.\n2. **Real-Time Updates**: Ensuring that the leaderboard reflects the latest user scores instantly or within a near-real-time window.\n3. **Scalability**: The system should scale horizontally to accommodate growing user numbers and data.\n\n### Design Overview\n\n- **Database Design**: We use PostgreSQL for its reliability and performance. The core tables include:\n  - **`user_score`**: Stores user scores.\n  - **`users`**: Contains user profile information.\n\n  These tables are designed to support efficient querying and updates, essential for real-time operations.\n\n- **System Architecture**: The architecture is optimized for high throughput and low latency, using a combination of caching, asynchronous processing, and efficient querying techniques.\n\n### Key Components\n\n- **Data Aggregation**: Implemented to aggregate user scores and calculate rankings efficiently.\n- **Real-Time Processing**: Utilizes streaming technologies and event-driven architecture to ensure timely updates.\n- **Scalability**: Designed to scale both vertically and horizontally, adapting to varying load conditions.\n\n## License\n\nThis project is licensed under the MIT License\n\nChronoScore is designed to be a robust, scalable solution for real-time leaderboard systems, combining practical design with cutting-edge technology to deliver exceptional performance.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchandrakanthrck%2Fchronoscore","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fchandrakanthrck%2Fchronoscore","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchandrakanthrck%2Fchronoscore/lists"}