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chrislu
b767825ba0
Added diagnostic step to download and examine actual Parquet files when tests fail. This will definitively answer: 1. Is the file complete? (Check PAR1 magic bytes at start/end) 2. What size is it? (Compare actual vs expected) 3. Can parquet-tools read it? (Reader compatibility test) 4. What does the footer contain? (Hex dump last 200 bytes) Steps performed: - List files in SeaweedFS - Download first Parquet file - Check magic bytes (PAR1 at offset 0 and EOF-4) - Show file size from filesystem - Hex dump header (first 100 bytes) - Hex dump footer (last 200 bytes) - Run parquet-tools inspect/show - Upload file as artifact for local analysis This will reveal if the issue is: A) File is incomplete (missing trailer) → SeaweedFS write problem B) File is complete but unreadable → Parquet format problem C) File is complete and readable → SeaweedFS read problem D) File size doesn't match metadata → Footer offset problem The downloaded file will be available as 'failed-parquet-file' artifact.