t8y2/dbx · error

connect RocketMQ endpoint %s: %w

Error message

connect RocketMQ endpoint %s: %w

What it means

Returned by dialRemote in the rocketmq proxy when dialing a remote broker endpoint (directly or via SOCKS5) failed for all candidate targets; the last error is wrapped with the endpoint address. It means the proxy listener accepted a client connection but could not reach the upstream broker.

Source

Thrown at agents/drivers/rocketmq/routing.go:212

				auth = &proxy.Auth{User: socks.Username, Password: socks.Password}
			}
			dialer, dialErr := proxy.SOCKS5("tcp", formatSocketAddress(socks.Host, fmt.Sprintf("%d", socks.Port)), auth, &net.Dialer{Timeout: endpoint.manager.config.ConnectTimeout})
			if dialErr != nil {
				lastErr = dialErr
				continue
			}
			conn, err = dialer.Dial("tcp", target)
		} else {
			ctx, cancel := context.WithTimeout(context.Background(), endpoint.manager.config.ConnectTimeout)
			conn, err = (&net.Dialer{}).DialContext(ctx, "tcp", target)
			cancel()
		}
		if err == nil {
			return conn, nil
		}
		lastErr = err
	}
	return nil, fmt.Errorf("connect RocketMQ endpoint %s: %w", endpoint.original, lastErr)
}

func (endpoint *proxyEndpoint) forward(source, destination net.Conn, response bool) error {
	for {
		frame, err := readRemotingFrame(source)
		if err != nil {
			return err
		}
		command, err := remoting.Decode(frame[4:])
		if err != nil {
			return err
		}
		if response {
			if err := endpoint.manager.rewriteResponse(command); err != nil {
				return err
			}
		} else {
			signCommand(command, endpoint.manager.config.AccessKey, endpoint.manager.config.SecretKey)

View on GitHub (pinned to c0390bff16)

Solutions

1. Check the wrapped error and endpoint address; verify the broker host:port is reachable from the agent
2. For SOCKS routes verify socks_proxy host/port and credentials
3. Check firewall/NAT rules between the agent and the private broker network
4. Retry — transient broker restarts or network blips can cause this

When it happens

Trigger: Thrown at agents/drivers/rocketmq/routing.go:212 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of t8y2/dbx@c0390bff16 (2026-09-05). Data as JSON: /api/errors/a4b2d1ac6b9f4e0e. Report an issue: GitHub.