Issue with Decoding Preprocessed Data

[sklyar61]

I am using the axolotl library for preprocessing data, which is then processed and saved in the .arrow format. This process involves several data sources that are processed and integrated into a unified data structure.

Data Configuration:

yaml
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datasets:

• path: "/path/to"
  type: alpaca_chat.load_qa
  data_files: "/path/to/1.jsonl"

• path: '/path/to'
  data_files: "/path/to/2.jsonl"
  type: sharegpt

• path: '/path/to'
  data_files: "/path/to/2.jsonl"
  type: context_qa.load_v2

• path: '/path/to'
  data_files: "/path/to/3.jsonl"
  type: alpaca_w_system.load_open_orca

• path: '/path/to'
  data_files: "/path/to/4.jsonl"
  type: sharegpt.load_role
  Library Versions:

axolotl: 0.4.1
datasets: 2.19.1
pyarrow: 16.1.0
torch: 2.3.0
Issue: After completing the preprocessing, I see a message about successful saving of preprocessed data (Success! Preprocessed data path: /path/to/axolotl/examples/llama-3), but when I attempt to decode the file data-00000-of-00001.arrow, I encounter an error: ArrowInvalid: Not an Arrow file. Checking the data-00000-of-00001.arrow file showed a lack of magic bytes typical for Arrow files.

Expectations: I expected the file to be saved in a valid Arrow format and that it could be successfully loaded and decoded for further use.

Questions for Developers
Can you confirm that the process described in the axolotl documentation should correctly save data in the Arrow format using the specified library versions?
What additional checks or configuration changes should I perform to ensure the correctness of the file format?
Are there any known compatibility issues between datasets, pyarrow, and axolotl that could have led to this error?
What steps would you recommend for diagnosing and solving this problem, given that checking the file did not show the presence of magic bytes typical for Arrow?
Additional Information
I am ready to provide any additional logs, configurations, or information that may help in diagnosing and resolving this issue. I would appreciate any help or recommendations.