fix: silence ChromaDB telemetry warnings and CoreML segfault on Apple Silicon#236
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bensig merged 1 commit intoMemPalace:mainfrom Apr 8, 2026
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… Silicon ChromaDB 0.6.x bundles a Posthog telemetry client whose capture() signature is incompatible with the installed posthog library, producing noisy "Failed to send telemetry event" stderr warnings on every operation. Silence by raising the logger threshold to CRITICAL. ONNX Runtime's CoreML execution provider segfaults during vector queries on macOS ARM64 (issue MemPalace#74). Auto-set ORT_DISABLE_COREML=1 on Apple Silicon to force CPU execution, while respecting any user-provided override via os.environ.setdefault(). Made-with: Cursor
This was referenced Apr 9, 2026
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Summary
Fixes two ChromaDB compatibility issues in a single 10-line change to
mempalace/__init__.py:Telemetry spam: ChromaDB 0.6.x bundles a Posthog telemetry client whose
capture()signature is incompatible with the installed posthog library, producingFailed to send telemetry event ... capture() takes 1 positional argument but 3 were givenon every operation. Fixed by raising thechromadb.telemetry.product.posthoglogger threshold toCRITICAL.CoreML segfault on Apple Silicon (ChromaDB null pointer crash after ~8,400 drawers on macOS ARM64 #74): ONNX Runtime's CoreML execution provider crashes with SIGSEGV during vector queries on macOS ARM64. Fixed by auto-setting
ORT_DISABLE_COREML=1viaos.environ.setdefault()so it forces CPU execution while still respecting any user-provided override.Root cause
The telemetry error originates in
chromadb/telemetry/product/posthog.py:61whereposthog.capture(user_id, event_name, properties)is called with 3 positional args, but the bundled posthog library'scapture()only accepts 1. Settinganonymized_telemetry=Falsein ChromaDB Settings does not prevent the call — it only setsposthog.disabled = True, which the broken posthog stub doesn't honor.Changes
mempalace/__init__.pyORT_DISABLE_COREML=1on ARM64 macOSTest plan
mempalace searchproduces clean output with no telemetry warningsmempalace searchno longer segfaults on macOS ARM64 (tested on M-series Mac)Relates to #74