{"record":{"id":"49f7888e53cd2892","repo":"Zackriya-Solutions/meetily","slug":"416-response-reports-total-bytes-expected","errorCode":null,"errorMessage":"416 response reports {} total bytes, expected {}","messagePattern":"416 response reports (.+?) total bytes, expected (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs","lineNumber":803,"sourceCode":"            }\n        }\n        Ok(())\n    }\n\n    fn validate_unsatisfied_response(response: &reqwest::Response, exact_bytes: u64) -> Result<()> {\n        if response.status() != reqwest::StatusCode::RANGE_NOT_SATISFIABLE {\n            return Err(anyhow!(\n                \"Expected range-not-satisfiable 416 response, received {}\",\n                response.status()\n            ));\n        }\n        let content_range = response\n            .headers()\n            .get(reqwest::header::CONTENT_RANGE)\n            .ok_or_else(|| anyhow!(\"416 response is missing Content-Range\"))?;\n        match parse_content_range(content_range)? {\n            ContentRange::Unsatisfied { total } if total == exact_bytes => Ok(()),\n            ContentRange::Unsatisfied { total } => Err(anyhow!(\n                \"416 response reports {} total bytes, expected {}\",\n                total,\n                exact_bytes\n            )),\n            ContentRange::Range { .. } => Err(anyhow!(\"416 response has a satisfied Content-Range\")),\n        }\n    }\n\n    async fn download_model_detailed_from_source(\n        &self,\n        model_name: &str,\n        model_dir: &Path,\n        base_url: &str,\n        artifacts: &[ArtifactSpec],\n        progress_callback: Option<Box<dyn Fn(DownloadProgress) + Send>>,\n    ) -> Result<()> {\n        let active_download = self.reserve_active_download(model_name).await?;\n        self.set_downloading_status(model_name, 0).await;","sourceCodeStart":785,"sourceCodeEnd":821,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/a2cb62e827da7ef59f65064c97233efb2313878e/frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs#L785-L821","documentation":"After receiving a 416 with a Content-Range: bytes */<total> header, the engine checks that the server's declared total file size matches the artifact's known exact_bytes. This error fires when the sizes disagree, meaning the remote file differs from what the local artifact spec expects (changed, truncated, or wrong file).","triggerScenarios":"The remote model artifact at base_url has a different byte length than the hardcoded artifact.exact_bytes — typically because the upstream file was updated/re-uploaded, the mirror serves a different variant, or the artifact manifest is stale.","commonSituations":"Upstream model repo updated to a new revision while the app still ships old expected sizes; a mirror serving quantized vs full variant; manually edited artifact specs; CDN serving a stale cached copy.","solutions":["Pin the download to the exact upstream revision/commit the artifact sizes were generated from.","Update the artifact manifest (filename/exact_bytes) to match the current remote files.","Clear the model cache directory and re-download from the canonical source.","Verify with curl -sI <url> that Content-Length matches exact_bytes."],"exampleFix":"// before: stale manifest after upstream re-upload\nArtifactSpec { filename: \"model.int8.onnx\", exact_bytes: 1_203_331_072 }\n// after: refreshed to match current remote file\nArtifactSpec { filename: \"model.int8.onnx\", exact_bytes: 1_208_552_448 }","handlingStrategy":"validation","validationCode":"// confirm remote size matches the expected artifact size before download\nconst expected: u64 = 1_203_331_072; // artifact.exact_bytes\nlet len: u64 = reqwest::head(url).await?.headers()[CONTENT_LENGTH]\n    .to_str()?.parse()?;\nassert_eq!(len, expected, \"remote artifact size drifted; pin a revision\");","typeGuard":null,"tryCatchPattern":"match download_result {\n    Err(e) if e.to_string().contains(\"total bytes, expected\") => {\n        // upstream changed: pin the exact revision or refresh the manifest\n        refresh_artifact_manifest().await?;\n        retry_download().await\n    }\n    other => other,\n}","preventionTips":["Pin downloads to an immutable upstream revision/commit hash.","Keep artifact exact_bytes in sync when bumping model versions.","Verify Content-Length with a HEAD request before large downloads.","Clear CDN caches for the model host after upstream updates."],"tags":["http","download","integrity","resume"],"backgroundTag":"checksum-mismatch","analyzedSha":"a2cb62e827da7ef59f65064c97233efb2313878e","analyzedAt":"2026-09-12T11:12:14.152Z","contentChangedAt":"2026-09-12T11:12:14.152Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}