hashicorp/terraform · error

HTTP remote state internal server error

Error message

HTTP remote state internal server error

What it means

During Get(), the state server returned 500 Internal Server Error. The backend treats this as a hard failure (not retried here because the retryablehttp client only retries on connection errors and a configurable set of status codes by default; 500 surfaces immediately). It means the state endpoint itself is broken — server-side exception, upstream store down, or application bug.

Source

Thrown at internal/backend/remote-state/http/client.go:166

	if err != nil {
		return nil, diags.Append(err)
	}
	defer resp.Body.Close()

	// Handle the common status codes
	switch resp.StatusCode {
	case http.StatusOK:
		// Handled after
	case http.StatusNoContent:
		return nil, diags
	case http.StatusNotFound:
		return nil, diags
	case http.StatusUnauthorized:
		return nil, diags.Append(fmt.Errorf("HTTP remote state endpoint requires auth"))
	case http.StatusForbidden:
		return nil, diags.Append(fmt.Errorf("HTTP remote state endpoint invalid auth"))
	case http.StatusInternalServerError:
		return nil, diags.Append(fmt.Errorf("HTTP remote state internal server error"))
	default:
		return nil, diags.Append(fmt.Errorf("Unexpected HTTP response code %d", resp.StatusCode))
	}

	// Read in the body
	buf := bytes.NewBuffer(nil)
	if _, err := io.Copy(buf, resp.Body); err != nil {
		return nil, diags.Append(fmt.Errorf("Failed to read remote state: %s", err))
	}

	// Create the payload
	payload := &remote.Payload{
		Data: buf.Bytes(),
	}

	// If there was no data, then return nil
	if len(payload.Data) == 0 {
		return nil, diags

View on GitHub (pinned to c9def3e214)

Solutions

1. Check the state server's logs for the exception behind the 500.
2. Confirm backing storage connectivity from the state server host.
3. Retry once the server team confirms recovery; raise retry_max/retry_wait_max only if the server is known to be flaky.
4. If persistent, fall back to a known-good state snapshot and engage the state server maintainers.

func isServer500(err error) bool {
  return err != nil && strings.Contains(err.Error(), "HTTP remote state internal server error")
}

for attempt := 0; attempt < 3; attempt++ {
  err = runTerraform()
  if err == nil { break }
  if isServer500(err) && attempt < 2 { backoff(); continue }
  return err
}

When it happens

Trigger: State server bug processing the GET; backing storage (S3/database) unreachable from the state server; reverse proxy returning 500 because the upstream crashed. Fires at state read time.

Common situations: State server misconfigured or out of disk/memory; backing store outage; deployment of a broken state server build; schema migration mid-flight.

Understand the failure class

• HTTP status errors: handling 4xx and 5xx responses — how to handle 4xx and 5xx responses properly.

Related errors

• Failed to make %s HTTP request: %s
• HTTP remote state endpoint requires auth
• HTTP remote state already locked, failed to read body
• HTTP remote state already locked, failed to unmarshal body
• Unexpected HTTP response code %d

AI-assisted analysis of hashicorp/terraform@c9def3e214 (2026-08-07). Data as JSON: /api/errors/25feee23e02df3f1. Report an issue: GitHub.