{"record":{"id":"d01ed40a14e747ef","repo":"Zackriya-Solutions/meetily","slug":"partial-response-declared-bytes-expected","errorCode":null,"errorMessage":"Partial response declared {} bytes, expected {}","messagePattern":"Partial response declared (.+?) bytes, expected (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs","lineNumber":780,"sourceCode":"        };\n        if start != expected_start || end != exact_bytes - 1 || total != exact_bytes {\n            return Err(anyhow!(\n                \"Partial response range {}-{} / {} does not match {}-{} / {}\",\n                start,\n                end,\n                total,\n                expected_start,\n                exact_bytes - 1,\n                exact_bytes\n            ));\n        }\n        let expected_length = end\n            .checked_sub(start)\n            .and_then(|length| length.checked_add(1))\n            .ok_or_else(|| anyhow!(\"Partial response range length overflow\"))?;\n        if let Some(content_length) = Self::declared_content_length(response)? {\n            if content_length != expected_length {\n                return Err(anyhow!(\n                    \"Partial response declared {} bytes, expected {}\",\n                    content_length,\n                    expected_length\n                ));\n            }\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()","sourceCodeStart":762,"sourceCodeEnd":798,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/a2cb62e827da7ef59f65064c97233efb2313878e/frontend/src-tauri/src/parakeet_engine/parakeet_engine.rs#L762-L798","documentation":"Thrown by `validate_partial_response` when the 206 response's Content-Length header disagrees with the computed range length (`end - start + 1`). Even if Content-Range is correct, a body size mismatch means the transferred bytes won't complete the model file correctly, so the download is rejected.","triggerScenarios":"Range GET for the Parakeet model returns 206 with correct Content-Range but Content-Length (if present) differs from `end - start + 1` — e.g. the server truncates the body or lies about the length.","commonSituations":"Proxy or CDN mangling range responses; server bug sending fewer bytes than declared; connection interrupted such that the declared length no longer matches.","solutions":["Retry the range request; transient proxy/CDN issues often resolve.","Bypass intermediaries (proxy, VPN, HTTPS-scanning antivirus) for the download.","Fall back to a full download from byte 0 if range requests keep failing.","Use a different mirror that serves correct range responses."],"exampleFix":null,"handlingStrategy":"retry","validationCode":"let probe = client.get(url).header(\"Range\", \"bytes=0-99\").send().await?;\nlet cr_ok = probe.headers().get(\"content-range\").is_some();\nlet cl_ok = probe.headers().get(\"content-length\").map(|v| v.to_str().ok()).flatten().map(|s| s.parse::<u64>() == Ok(100)).unwrap_or(true);\nif !cr_ok || !cl_ok { eprintln!(\"mirror range responses inconsistent; choose another source\"); }","typeGuard":null,"tryCatchPattern":"match result {\n    Err(e) if e.to_string().contains(\"Partial response declared\") => retry_range_request_or_full_download(),\n    other => other,\n}","preventionTips":["Retry transient range failures before giving up.","Bypass proxies/VPN/HTTPS-scanning middleware for model downloads.","Fall back to a full download when range responses are repeatedly inconsistent."],"tags":["network","http","http-headers","download"],"backgroundTag":"content-length-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"}