Fix sleep analyzer loading only 1% of piezo data#38
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The CBOR file reading loop was exiting early when encountering records with empty data fields. This happened because: 1. Some RAW files contain records with `data: b''` (empty byte string) 2. When `cbor2.loads(b'')` is called, it raises `CBORDecodeEOF` 3. `CBORDecodeEOF` inherits from `EOFError` 4. The `except EOFError: break` handler catches this, exiting the loop This caused the sleep analyzer to load only ~250 records instead of ~46,000 per night, resulting in incomplete sleep detection. The fix simply skips records with empty data before attempting to decode. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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dallonby
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Dec 26, 2025
The same fix from PR throwaway31265#38 (19ac510) needs to be applied to stream.py. Some RAW files contain records where 'data' is an empty byte string. Calling cbor2.loads(b'') raises CBORDecodeEOF (inherits from EOFError), which was caught by the EOFError handler and broke out of the read loop. This caused the stream processor to only capture ~4 piezo records per sleep session instead of continuous data, resulting in only 2-3 vitals records per night instead of hundreds. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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dallonby
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Dec 28, 2025
The same fix from PR throwaway31265#38 (19ac510) needs to be applied to stream.py. Some RAW files contain records where 'data' is an empty byte string. Calling cbor2.loads(b'') raises CBORDecodeEOF (inherits from EOFError), which was caught by the EOFError handler and broke out of the read loop. This caused the stream processor to only capture ~4 piezo records per sleep session instead of continuous data, resulting in only 2-3 vitals records per night instead of hundreds. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Nice investigation! We hit the same issue in sleepypod-core and patched it in our TypeScript CBOR reader — the fix landed in sleepypod/core#178 (merged into dev). Our approach handles it at the byte-parsing level: Thanks for tracking this down 👍 |
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May 9, 2026
The same fix from PR #38 (19ac510) needs to be applied to stream.py. Some RAW files contain records where 'data' is an empty byte string. Calling cbor2.loads(b'') raises CBORDecodeEOF (inherits from EOFError), which was caught by the EOFError handler and broke out of the read loop. This caused the stream processor to only capture ~4 piezo records per sleep session instead of continuous data, resulting in only 2-3 vitals records per night instead of hundreds. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Already merged in another MR. |
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Summary
Root Cause
data: b''(empty byte string)cbor2.loads(b'')is called, it raisesCBORDecodeEOFCBORDecodeEOFinherits fromEOFErrorexcept EOFError: breakhandler catches this, exiting the loop prematurelyFix
Skip records with empty data before attempting to decode.
Test plan
🤖 Generated with Claude Code