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Throw typed exception for Parquet footer error

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#3,342 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
52/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
java
Domain
data-engineering

Research direction

Start in ParquetFileReader and inspect the footer-parsing failure paths alongside ParquetDecodingException. Confirm that corrupted-footer failures surface as the typed exception rather than RuntimeException, then verify the relevant reader behavior with the repository's existing tests.

Written by the indexing model from the issue text.

Description

Type: enhancement
Describe the enhancement requested

Currently, ParquetFileReader throws RuntimeExceptions when footer parsing fails.

This can be improved by throwing a ParquetDecodingException when footer parsing fails, so footer corruption surfaces as a typed exception instead of a plain RuntimeException. This helps avoid matching on error message to catch errors occurred during footer parsing.

Component(s)

No response

Dominant language
Java
Stars
3.1k
Forks
1.6k
Avg merge
4d 12h
Merged PRs (30d)
28

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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