prestodb/presto · error · IOException

Request to %s failed: %s [Error: %s]

Error message

Request to %s failed: %s [Error: %s]

What it means

executePoll builds this message when the external authentication token-poll endpoint did not return HTTP 200 with a valid token body — the OAuth2 device-flow server rejected or failed the poll (e.g. pending, denied, or server error).

Source

Thrown at presto-client/src/main/java/com/facebook/presto/client/auth/external/HttpTokenPoller.java:145

        return new Request.Builder()
                .url(url)
                .addHeader(USER_AGENT, USER_AGENT_VALUE);
    }

    private TokenPollResult executePoll(Request request)
            throws IOException
    {
        JsonResponse<TokenPollRepresentation> response = executeRequest(request);

        if ((response.getStatusCode() == HTTP_OK) && response.hasValue()) {
            return response.getValue().toResult();
        }

        Optional<String> responseBody = Optional.ofNullable(response.getResponseBody());
        String message = format("Request to %s failed: %s [Error: %s]", request.url(), response, responseBody.orElse("<Response Too Large>"));

        if (response.getStatusCode() == HTTP_UNAVAILABLE) {
            throw new IOException(message);
        }

        return TokenPollResult.failed(message);
    }

    private JsonResponse<TokenPollRepresentation> executeRequest(Request request)
            throws IOException
    {
        try {
            return execute(TOKEN_POLL_CODEC, client.get(), request);
        }
        catch (UncheckedIOException e) {
            throw e.getCause();
        }
    }

    public static class TokenPollRepresentation
    {

View on GitHub (pinned to 55bb57d202)

Solutions

1. Check the external authenticator service health and URL
2. Retry the CLI authentication flow to start a fresh poll
3. Verify the redirected token from the browser was pasted/issued correctly

When it happens

Trigger: Thrown at presto-client/src/main/java/com/facebook/presto/client/auth/external/HttpTokenPoller.java:145 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of prestodb/presto@55bb57d202 (2026-09-04). Data as JSON: /api/errors/939bb0775caf1248. Report an issue: GitHub.