provide an option to skip a page in case corrupted bytes occur
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描述
In case of hardware failure (disk, memory, etc), there might be corrupted bytes. That will result in ArrayIndexOutOfBoundException or/and data garbled.
Currently, jobs reading those Parquet files will fail unless the corrupted files are deleted/moved.
Currently page metadata has a CRC field (not used so far), which can be used to check integrity of the page. If page data is corrupted, skip the whole page.
related issue: PARQUET-148
**Reporter**: [Tongjie Chen](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=tongjie) / @tongjiechen
**Note**: *This issue was originally created as [PARQUET-149](https://issues.apache.org/jira/browse/PARQUET-149). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*
贡献指南
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调研方向
从 Parquet 页面读取路径以及 issue 中描述的页面元数据处理入手;检查如何在页面数据被使用之前校验现有的 CRC 字段。复现损坏情况,或为损坏的页面字节添加有针对性的覆盖,然后验证受影响的页面会被跳过,同时作业会继续执行,而不是失败或返回乱码数据。
由索引模型根据 Issue 内容生成。
评估
- 技术栈
- java
- 领域
- data-engineering
- Issue 类型
- 功能
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- 4/5
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- 3-5 天
- 活跃度
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- 描述清晰度
- 基本清楚
- 新手友好度
- 30/100