risingwave_frontend/handler/
kill_process.rs

1// Copyright 2025 RisingWave Labs
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use pgwire::pg_response::{PgResponse, StatementType};
16
17use crate::error::{ErrorCode, Result};
18use crate::handler::{HandlerArgs, RwPgResponse};
19
20pub(super) async fn handle_kill(
21    handler_args: HandlerArgs,
22    process_id: i32,
23) -> Result<RwPgResponse> {
24    // Process id and secret key in session id are the same in RisingWave.
25    let session_id = (process_id, process_id);
26    tracing::trace!("kill query in session: {:?}", session_id);
27    let session = handler_args.session;
28    // TODO: cancel queries with await.
29    let mut session_exists = session.env().cancel_queries_in_session(session_id);
30    session_exists |= session.env().cancel_creating_jobs_in_session(session_id);
31
32    if session_exists {
33        Ok(PgResponse::empty_result(StatementType::KILL))
34    } else {
35        Err(ErrorCode::SessionNotFound.into())
36    }
37}
risingwave_frontend/handler/kill_process.rs

risingwave_frontend/handler/
kill_process.rs
