{"record":{"id":"5691cde8c53b1acb","repo":"Zackriya-Solutions/meetily","slug":"failed-to-read-chunk","errorCode":null,"errorMessage":"Failed to read chunk: {}","messagePattern":"Failed to read chunk: (.+?)","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"frontend/src-tauri/src/whisper_engine/whisper_engine.rs","lineNumber":1188,"sourceCode":"            callback(0);\n        }\n\n        loop {\n            let chunk_result = tokio::select! {\n                biased;\n                _ = active_download.cancellation.cancelled() => return Err(DownloadCancelled.into()),\n                chunk_result = stream.next() => chunk_result,\n            };\n\n            let Some(chunk_result) = chunk_result else {\n                break;\n            };\n\n            if active_download.cancellation.is_cancelled() {\n                return Err(DownloadCancelled.into());\n            }\n\n            let chunk = chunk_result.map_err(|e| anyhow!(\"Failed to read chunk: {}\", e))?;\n            file.write_all(&chunk)\n                .await\n                .map_err(|e| anyhow!(\"Failed to write chunk to file: {}\", e))?;\n\n            downloaded += chunk.len() as u64;\n            let progress = if total_size > 0 {\n                ((downloaded as f64 / total_size as f64) * 100.0) as u8\n            } else {\n                0\n            };\n\n            let time_since_last_report = last_report_time.elapsed().as_secs();\n            if progress >= last_progress_report + 1 || progress == 100 || time_since_last_report >= 2 {\n                let mut models = self.available_models.write().await;\n                if let Some(model_info) = models.get_mut(model_name) {\n                    model_info.status = ModelStatus::Downloading { progress };\n                }\n","sourceCodeStart":1170,"sourceCodeEnd":1206,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/a2cb62e827da7ef59f65064c97233efb2313878e/frontend/src-tauri/src/whisper_engine/whisper_engine.rs#L1170-L1206","documentation":"response.bytes_stream() yielded an Err while reading the body: the connection broke mid-transfer (ECONNRESET, read timeout, TLS error). A partial ggml file remains on disk and the model status is left Downloading, so it must be cleaned up or overwritten before the model is usable.","triggerScenarios":"Wi-Fi drop or VPN reconnect during a multi-GB large-v3 fetch; server or proxy closing the connection on idle; network switch mid-download.","commonSituations":"Long downloads over hotel/mobile networks; aggressive proxy idle timeouts; huggingface CDN node failures mid-stream.","solutions":["Retry download_model — it truncates and rewrites the file from byte 0","On flaky links prefer smaller or quantized models (base, small, *-q5_0/q5_1) to shrink the transfer window","Stabilize the network or raise client timeouts; there is no HTTP Range resume support in this loop"],"exampleFix":null,"handlingStrategy":"retry","validationCode":null,"typeGuard":null,"tryCatchPattern":"let mut attempts = 0;\nloop {\n  match engine.download_model(name, cb.clone()).await {\n    Ok(_) => break,\n    Err(e) if String::from(&e).contains(\"Failed to read chunk\") && attempts < 3 => {\n      attempts += 1;\n      tokio::time::sleep(Duration::from_secs(2u64.pow(attempts))).await;\n    }\n    Err(e) => return Err(e),\n  }\n}","preventionTips":["Wrap model downloads in exponential-backoff retry (connection resets are transient)","Prefer quantized models on unreliable networks to shorten the transfer window","After a mid-stream failure, always restart the full download — partial files are not resumable here"],"tags":["network","download","streaming","rust","reqwest"],"backgroundTag":"connection-reset-mid-download","analyzedSha":"a2cb62e827da7ef59f65064c97233efb2313878e","analyzedAt":"2026-09-12T11:12:14.152Z","contentChangedAt":"2026-09-12T11:12:14.152Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}