huggingface data_error ai_generated true

IndexError: 处理数据集 'my_dataset' 的分片 4 时列表索引超出范围

IndexError: list index out of range while processing shard 4 of dataset 'my_dataset'

ID: huggingface/dataset-sharding-index-out-of-range

其他格式: JSON · Markdown 中文 · English
88%修复率
85%置信度
1证据数
2024-03-15首次发现

版本兼容性

版本状态引入弃用备注
huggingface/datasets 2.18.0 active — — —
huggingface/datasets 2.19.0 active — — —
huggingface/datasets 2.20.0 active — — —

根因分析

数据集分片文件损坏或不完整，导致分片时实际样本数少于预期。

English

Dataset shard file is corrupted or incomplete, causing fewer examples than expected when splitting into shards.

generic

官方文档

https://huggingface.co/docs/datasets/en/loading#sharding

解决方案

  1. Clear the dataset cache and re-download: `import datasets; datasets.load_dataset('my_dataset', cache_dir='/tmp/fresh_cache')`
  2. Manually verify shard files: `ls ~/.cache/huggingface/datasets/my_dataset/*.arrow` and remove any zero-byte files before re-loading.

无效尝试

常见但无效的做法:

  1. Increase shard count to reduce per-shard size 75% 失败

    The error is due to a corrupted shard file, not shard size. Changing shard count doesn't fix the underlying data corruption.

  2. Re-download the entire dataset without checking shard integrity 60% 失败

    If the cache is corrupt, simply re-downloading without clearing the cache may reuse the same corrupted file.