{"record":{"id":"0c9d778c05205a22","repo":"xai-org/grok-build","slug":"gcs-channel-pointer-body-read-failed-for","errorCode":null,"errorMessage":"GCS channel pointer body read failed for {}: {:#}","messagePattern":"GCS channel pointer body read failed for (.+?): (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/codegen/xai-grok-update/src/version.rs","lineNumber":364,"sourceCode":"                if version.is_empty() {\n                    last_err = Some(anyhow::anyhow!(\n                        \"empty {} channel pointer at {}\",\n                        channel,\n                        url\n                    ));\n                    continue;\n                }\n                if semver::Version::parse(&version).is_err() {\n                    anyhow::bail!(\n                        \"invalid semver in {} channel pointer: '{}'\",\n                        channel,\n                        version\n                    );\n                }\n                return Ok(version);\n            }\n            Err(e) => {\n                last_err = Some(anyhow::anyhow!(\n                    \"GCS channel pointer body read failed for {}: {:#}\",\n                    url,\n                    e\n                ));\n                continue;\n            }\n        }\n    }\n    Err(last_err.unwrap())\n}\n\n/// Fetch the latest version for the given installer type without writing the\n/// version cache. Use this when the caller needs to control when the cache is\n/// written (e.g. auto-update should only cache after a successful install or\n/// when no update is needed).\npub async fn fetch_latest_version(installer: &str, config: &UpdateConfig) -> Result<String> {\n    match installer {\n        \"npm\" => fetch_npm_version(&config.channel, config.npm_registry.as_deref()).await,","sourceCodeStart":346,"sourceCodeEnd":382,"githubUrl":"https://github.com/xai-org/grok-build/blob/bc7f02eddd3d84085849dc19ed216f11c23b0571/crates/codegen/xai-grok-update/src/version.rs#L346-L382","documentation":"fetch_gcs_channel_pointer got a successful HTTP status but resp.text().await failed, meaning the response body could not be read (connection dropped mid-body, timeout, decoding issue). The URL and the chained error context ({:#}) are recorded and the loop moves to the next candidate URL.","triggerScenarios":"Calling fetch_gcs_channel_pointer when the network connection is reset while streaming the pointer body, the HTTP client times out mid-download, or the response body is truncated/invalid.","commonSituations":"Flaky mobile/VPN connections; aggressive middleboxes or load balancers closing keep-alive connections; TLS interception proxies that fail mid-transfer.","solutions":["Retry the call — the loop already tries all candidate URLs; a transient network hiccup often resolves on retry.","Check network stability (VPN, proxy, DNS) between the machine and storage.googleapis.com.","Increase/inspect the HTTP client's timeout configuration.","If it persists, capture the chained error ({:#} output) for the underlying reqwest cause."],"exampleFix":"// before: no retry around pointer fetch\nlet v = fetch_gcs_channel_pointer(&client, base, channel).await?;\n// after: simple retry loop for transient body-read failures\nlet v = loop {\n    match fetch_gcs_channel_pointer(&client, base, channel).await {\n        Ok(v) => break v,\n        Err(e) if attempts < 3 => { attempts += 1; tokio::time::sleep(Duration::from_secs(2)).await; }\n        Err(e) => return Err(e),\n    }\n};","handlingStrategy":"retry","validationCode":"// pre-check connectivity to GCS before pointer fetch\nreqwest::get(\"https://storage.googleapis.com/\").await\n    .map_err(|e| anyhow::anyhow!(\"GCS unreachable: {e}\"))?;","typeGuard":null,"tryCatchPattern":"for attempt in 0..3 {\n    match fetch_gcs_channel_pointer(&client, base, channel).await {\n        Ok(v) => break Ok(v),\n        Err(e) if attempt < 2 => { tokio::time::sleep(Duration::from_secs(2u64 << attempt)).await; last = Some(e); }\n        Err(e) => break Err(e),\n    }\n}","preventionTips":["Add exponential backoff around network reads","Set sane HTTP client timeouts so failures are fast and retriable","Avoid flaky networks/VPN when running update checks in CI"],"tags":["network","io","gcs","update-check"],"backgroundTag":"connection-reset","analyzedSha":"bc7f02eddd3d84085849dc19ed216f11c23b0571","analyzedAt":"2026-08-31T04:59:42.031Z","schemaVersion":2},"datasetVersion":"2026-08-31T09:17:48.483Z"}