xai-org/grok-build · error

{} failed: {}

Error message

{} failed: {}

What it means

This is the terminal error of the retry loop in storage_client's network-retrying operations: when a request fails and attempts have exceeded retry_config.max_retries, the client gives up and wraps the last error as "{operation} failed: {e}". It signals all retries for the named operation (e.g. upload) were exhausted due to persistent network/transport failures.

Source

Thrown at crates/codegen/xai-file-utils/src/storage_client.rs:1248

                    let check = ResponseCheck::from_response(response, &operation).await;
                    if check.is_retryable && attempt < self.retry_config.max_retries {
                        check.wait_for_retry(&self.retry_config, attempt).await;
                        attempt += 1;
                        continue;
                    }
                    return Err(HttpUploadError {
                        status_code: check.status_code,
                        message: check.message,
                    }
                    .into());
                }
                Err(e) => {
                    if attempt < self.retry_config.max_retries {
                        wait_for_network_retry(&self.retry_config, &operation, attempt, &e).await;
                        attempt += 1;
                        continue;
                    }
                    return Err(anyhow::anyhow!("{} failed: {}", operation, e));
                }
            }
        }
    }

    /// Uploads a file to GCS with retry logic for transient failures.
    ///
    /// This is more memory-efficient than `upload()` as it streams the file content
    /// without loading it entirely into memory. Unlike `upload_stream()`, this method
    /// supports automatic retries by re-reading from the file on each attempt.
    ///
    /// Retries on 429 (rate limit), 500, 502, 503, 504 errors with configurable
    /// exponential backoff and jitter. Respects `Retry-After` headers from 429 responses.
    ///
    /// # Arguments
    /// * `dest_path` - The destination path in the bucket (e.g., "uploads/file.txt")
    /// * `file_path` - Path to the local file to upload
    /// * `content_type` - MIME type of the content (e.g., "application/gzip")

View on GitHub (pinned to bc7f02eddd)

Solutions

  1. Inspect the wrapped inner error to find the root transport failure (timeout, refused, DNS).
  2. Confirm network reachability of the storage endpoint (curl the health/base URL).
  3. Increase retry_config.max_retries or backoff if failures are intermittent.
  4. Correct endpoint/DNS/proxy configuration pointing to the storage service.

Example fix

// before
let retry_config = RetryConfig { max_retries: 2, .. };

// after
let retry_config = RetryConfig { max_retries: 5, .. };
Defensive patterns

Strategy: retry

Validate before calling

// Check reachability before entering retry-heavy operations
let reachable = tokio::net::TcpStream::connect((host, port)).await.is_ok();
if !reachable {
    anyhow::bail!("storage endpoint {host}:{port} unreachable; fix network first");
}

Try / catch

// Detect retry exhaustion by suffix and apply backoff at the caller
if let Some(rest) = e.to_string().strip_suffix(" failed") {
    // message format: "{operation} failed: {inner}"
    tracing::error!("operation {rest} exhausted retries: {e:#}");
    // re-run with larger max_retries or alert
}

Prevention

When it happens

Trigger: Repeated reqwest send() failures (connection refused, DNS failure, timeouts) across max_retries attempts for the operation named in the message; non-retryable transport error immediately failing on every attempt.

Common situations: Storage endpoint unreachable (VPN off, firewall, wrong host/port); DNS misconfiguration; server outage lasting longer than the retry window; excessively low max_retries combined with flaky connectivity.

Related errors

AI-assisted analysis of xai-org/grok-build@bc7f02eddd (2026-08-31). Data as JSON: /api/errors/07d9e7390fd5a175. Report an issue: GitHub.