apache/pinot

`SchemaUtils` Doesn't Show the Actual Reason for Validation Failure

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#14,787 创建于 2025年1月9日

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 (3 评论) (0 反应) (0 负责人)Java (4,937 star) (1,234 fork)batch import
buggood first issue

描述

Often when our customers try to deploy, Pinot returns Schema is incompatible with tableConfig with no details about the root-cause. We should try to return the exact reason why the Schema validation had failed.

https://github.com/apache/pinot/blob/6a8bdb5e5e691381cda5122b03c6c3fd7b6fd265/pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/SchemaUtils.java#L170-L181

贡献者指南

技术栈
java
领域
backenddatabase
议题类型
feature
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。
2
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。
1-3 hours
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
Javabasic understanding of schema validation
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。
70
研究方向
The issue is to improve error messages in SchemaUtils.java when schema validation fails. Locate the validation method at line 170-181 and modify it to capture the specific reason for failure (e.g., why the schema is incompatible with tableConfig). Consider using exceptions or validation result objects to propagate the reason. Check if there are any existing tests for this validation to understand expected behavior. The fix is localized and should not require cross module changes.