{"record":{"id":"bed1e3756eb5e0d2","repo":"xai-org/grok-build","slug":"upload-timed-out-after-s","errorCode":null,"errorMessage":"Upload timed out after {}s","messagePattern":"Upload timed out after (.+?)s","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/codegen/xai-grok-pager/src/trace_cmd.rs","lineNumber":643,"sourceCode":"async fn upload_with_retries(\n    config: &xai_grok_shell::session::repo_changes::TraceExportConfig,\n    object_path: &str,\n    archive: &[u8],\n) -> anyhow::Result<String> {\n    use backon::{ExponentialBuilder, Retryable};\n\n    let backoff = ExponentialBuilder::default()\n        .with_min_delay(std::time::Duration::from_secs(2))\n        .with_max_delay(std::time::Duration::from_secs(8))\n        .with_max_times(3);\n\n    (|| async {\n        tokio::time::timeout(\n            UPLOAD_TIMEOUT,\n            xai_file_utils::gcs::upload_bytes(config, object_path, archive, \"application/gzip\"),\n        )\n        .await\n        .map_err(|_| anyhow::anyhow!(\"Upload timed out after {}s\", UPLOAD_TIMEOUT.as_secs()))?\n    })\n    .retry(backoff)\n    .notify(|err, dur| {\n        tracing::warn!(error = %err, retry_in = ?dur, \"trace_cmd: upload attempt failed, retrying\");\n        eprintln!(\"  Upload failed, retrying in {}s...\", dur.as_secs());\n    })\n    .await\n}\n\n// ---------------------------------------------------------------------------\n// Upload method resolution\n// ---------------------------------------------------------------------------\n\npub async fn resolve_upload_method(agent_config: &AgentConfig) -> Option<UploadMethod> {\n    // On login failure, fall back to ambient creds rather than erroring.\n    let auth_token = xai_grok_shell::auth::ensure_authenticated_or_noninteractive(\n        &agent_config.grok_com_config,\n        agent_config.endpoints.has_noninteractive_upload_auth(),","sourceCodeStart":625,"sourceCodeEnd":661,"githubUrl":"https://github.com/xai-org/grok-build/blob/bc7f02eddd3d84085849dc19ed216f11c23b0571/crates/codegen/xai-grok-pager/src/trace_cmd.rs#L625-L661","documentation":"Each upload attempt to GCS is wrapped in `tokio::time::timeout(UPLOAD_TIMEOUT, upload_bytes(...))`. If the upload does not finish within UPLOAD_TIMEOUT seconds, the timeout elapses and the future is converted into this anyhow error. The `retry` combinator then retries with backoff until retries are exhausted (which then surfaces error 406).","triggerScenarios":"`run_upload` -> `upload_with_retries` where `gcs::upload_bytes` takes longer than UPLOAD_TIMEOUT: huge trace archives, very slow/broken network connections, or a stalled connection that never completes.","commonSituations":"Uploading large session bundles over slow corporate VPN; network drop mid-transfer causing a hang until timeout; proxy/firewall silently dropping long-lived connections; GCS slow under load.","solutions":["Retry `grok trace <session-id>` on a faster/more reliable connection","Reduce archive size (trim session trace data) so uploads fit the timeout","Check proxy/MTU/firewall issues that stall long uploads","If timeouts are chronic for large traces, request a larger UPLOAD_TIMEOUT in the code/config"],"exampleFix":"// before: repeated timeouts on slow link\n// after: shrink what is uploaded\nlet archive = build_archive(&session, /* include_payloads: */ false)?; // smaller bundle, fits timeout","handlingStrategy":"retry","validationCode":"// estimate upload feasibility: archive size vs expected throughput within UPLOAD_TIMEOUT\nlet size_mb = archive.len() as f64 / 1e6;\nif size_mb > 100.0 { eprintln!(\"archive is {size_mb}MB; may exceed upload timeout on slow links\"); }","typeGuard":null,"tryCatchPattern":"match upload_with_retries(...).await {\n    Err(e) if e.to_string().contains(\"Upload timed out\") => {\n        eprintln!(\"upload exceeded timeout; check connection speed or shrink the archive, then retry\");\n    }\n    other => other?,\n}","preventionTips":["Upload traces on stable/fast connections, not throttled VPN links","Keep trace bundles small by trimming unnecessary payloads","Avoid pausing/suspending the machine mid-upload"],"tags":["timeout","upload","network","gcs"],"backgroundTag":"upload-timeout","analyzedSha":"bc7f02eddd3d84085849dc19ed216f11c23b0571","analyzedAt":"2026-08-31T04:59:42.031Z","schemaVersion":2},"datasetVersion":"2026-08-31T09:17:48.483Z"}