Cumulative user memory in WebUI can display negative number for queries with very large memory consumption.
贡献者指南
技术栈
javajavascript
领域
frontendbackend
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Basic Java knowledgeUnderstanding of Web UI development
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
50
研究方向
Investigate the WebUI component that displays cumulative user memory, likely in the JavaScript frontend. Look for the API endpoint fetching memory metrics from the backend, possibly in a Trino coordinator REST controller. The issue shows negative values for large memory consumption, suggesting an integer overflow or type conversion problem. Check the data type used for memory values in both backend (Java long vs unsigned) and frontend (JavaScript number). Review relevant files like trino web ui/src/ or similar directories.
Cumulative user memory overflow, visible in the UI · trinodb/trino#9080 | Good First Issue
