{"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":1022,"sourceCode":"        if let Some(ref callback) = progress_callback {\n            callback(0);\n        }\n\n        while let Some(chunk_result) = stream.next().await {\n            // Check for cancellation before processing chunk\n            {\n                let cancel_flag = self.cancel_download_flag.read().await;\n                if cancel_flag.as_ref() == Some(&model_name.to_string()) {\n                    log::info!(\"Download cancelled for {}\", model_name);\n                    // Remove from active downloads on cancellation\n                    let mut active = self.active_downloads.write().await;\n                    active.remove(model_name);\n                    return Err(anyhow!(\"Download cancelled by user\"));\n                }\n            }\n\n            let chunk = chunk_result\n                .map_err(|e| anyhow!(\"Failed to read chunk: {}\", e))?;\n\n            file.write_all(&chunk).await\n                .map_err(|e| anyhow!(\"Failed to write chunk to file: {}\", e))?;\n\n            downloaded += chunk.len() as u64;\n\n            // Calculate progress\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            // Report progress every 1% or every 2 seconds for better UI responsiveness\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                log::info!(\"Download progress: {}% ({:.1} MB / {:.1} MB)\",\n                         progress,","sourceCodeStart":1004,"sourceCodeEnd":1040,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/0281737d87d26352fb0adc78c8c0975f691b23d1/frontend/src-tauri/src/whisper_engine/whisper_engine.rs#L1004-L1040","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":"0281737d87d26352fb0adc78c8c0975f691b23d1","analyzedAt":"2026-08-16T20:57:52.567Z","schemaVersion":2},"datasetVersion":"2026-08-16T23:17:17.608Z"}