{"record":{"id":"b98e9d00f5371c26","repo":"Zackriya-Solutions/meetily","slug":"error-writing-to-file","errorCode":null,"errorMessage":"Error writing to file: {}","messagePattern":"Error writing to file: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"frontend/src-tauri/src/summary/summary_engine/model_manager.rs","lineNumber":653,"sourceCode":"\n                            // Set model status to Error (NOT NotDownloaded) so UI can show retry button\n                            {\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::Error(error_msg.to_string());\n                                }\n                            }\n\n                            return Err(anyhow!(\"{}: {}\", error_msg, e));\n                        }\n                    }\n                }\n            };\n            let chunk_len = chunk.len() as u64;\n            writer\n                .write_all(&chunk)\n                .await\n                .map_err(|e| anyhow!(\"Error writing to file: {}\", e))?;\n\n            downloaded += chunk_len;\n            bytes_since_last_report += chunk_len;\n\n            // Calculate progress\n            let progress_percent = if total_size > 0 {\n                let exact_percent = (downloaded as f64 / total_size as f64) * 100.0;\n                exact_percent.min(100.0) as u8\n            } else {\n                0\n            };\n\n            let elapsed_since_report = last_report_time.elapsed();\n            let is_download_complete = downloaded >= total_size;\n            let should_report = progress_percent > last_progress_percent\n                || is_download_complete  // Force report on completion\n                || elapsed_since_report.as_millis() >= 500;\n","sourceCodeStart":635,"sourceCodeEnd":671,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/0281737d87d26352fb0adc78c8c0975f691b23d1/frontend/src-tauri/src/summary/summary_engine/model_manager.rs#L635-L671","documentation":"Raised while persisting a downloaded chunk: writer.write_all(&chunk) on the partial model file failed. The tokio file writer could not write to disk - the volume is full, the models directory was removed, or the file became unwritable (permissions, antivirus lock) while the download was running.","triggerScenarios":"download_model is mid-stream and the target volume runs out of space (GGUF models are hundreds of MB to several GB), the models directory is deleted by an external process mid-download, or the partial file is locked by security software on Windows during write_all.","commonSituations":"Insufficient disk space for large LLM models, AppData/Application Support on a full drive, macOS/Windows disk quotas, antivirus quarantining or holding the partially written .gguf file.","solutions":["Free disk space (or relocate the models directory) so free bytes exceed the model size listed in the catalog, then retry - the download resumes from the partial file","Check write permissions on the models directory (~/Library/Application Support/Meetily/models/summary on macOS, %APPDATA%\\Meetily\\models\\summary on Windows)","Exclude the models directory from real-time antivirus scanning and retry","Delete the partial file and start a fresh download if resume keeps failing"],"exampleFix":null,"handlingStrategy":"validation","validationCode":"// Before download_model: require free space >= expected model size (from the catalog)\nlet model = get_model_by_name(model_name).unwrap();\nlet free = fs2::available_space(&models_dir)?;\nif free < model.size_bytes + 256 * 1024 * 1024 {\n    return Err(anyhow!(\"insufficient disk: need {} bytes, have {}\", model.size_bytes, free));\n}","typeGuard":null,"tryCatchPattern":"try {\n    manager.download_model(name).await?;\n} catch (e) {\n    if e.to_string().contains(\"Error writing to file\") {\n        // disk/permissions problem - do NOT blind-retry; surface to user for cleanup\n        return Err(anyhow!(\"disk write failed: free space or check permissions\"));\n    }\n    return Err(e);\n}","preventionTips":["Check free space against the catalog model size before every download","Exclude the models directory from antivirus real-time scanning","Alert users when the volume holding the models dir drops below a threshold"],"tags":["disk","io","download","model-manager","filesystem"],"backgroundTag":"disk-write-failed","analyzedSha":"0281737d87d26352fb0adc78c8c0975f691b23d1","analyzedAt":"2026-08-16T20:57:52.567Z","schemaVersion":2},"datasetVersion":"2026-08-16T23:17:17.608Z"}