Received exit notification before a shutdown request

Error message

Received exit notification before a shutdown request

What it means

Error "Received exit notification before a shutdown request" thrown in astral-sh/ruff.

Source

Thrown at crates/ruff_server/src/server/main_loop.rs:66

                                    "Received request after server shutdown was requested, discarding"
                                );
                                client.respond_err(
                                    req.id,
                                    lsp_server::ResponseError {
                                        code: lsp_server::ErrorCode::InvalidRequest as i32,
                                        message: "Shutdown already requested".to_owned(),
                                        data: None,
                                    },
                                )?;
                                continue;
                            }

                            api::request(req)
                        }
                        Message::Notification(notification) => {
                            if notification.method == lsp_types::ExitNotification::METHOD.as_str() {
                                if !self.session.is_shutdown_requested() {
                                    return Err(anyhow!(
                                        "Received exit notification before a shutdown request"
                                    ));
                                }

                                tracing::debug!("Received exit notification, exiting");
                                return Ok(());
                            }

                            api::notification(notification)
                        }

                        // Handle the response from the client to a server request
                        Message::Response(response) => {
                            if let Some(handler) = self
                                .session
                                .request_queue_mut()
                                .outgoing_mut()
                                .complete(&response.id)

View on GitHub (pinned to 672bb4edf0)

When it happens

Trigger: Thrown at crates/ruff_server/src/server/main_loop.rs:66 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of astral-sh/ruff@672bb4edf0 (2026-08-16). Data as JSON: /api/errors/e94d6838b11a04fa. Report an issue: GitHub.