raftstore/hibernate: wake up on proposal (tikv#6736)

Signed-off-by: Jay Lee <BusyJayLee@gmail.com>

src/raftstore/store/peer.rs

@@ -1612,6 +1612,7 @@ impl Peer {
                     // possible.
                     self.raft_group.skip_bcast_commit(false);
                 }
+                self.should_wake_up = true;
                 let meta = ProposalMeta {
                     index: idx,
                     term: self.term(),
@@ -1980,6 +1981,7 @@ impl Peer {
 
         let read = ReadIndexRequest::with_command(id, req, cb, renew_lease_time);
         self.pending_reads.push_back(read, self.is_leader());
+        self.should_wake_up = true;
 
         debug!(
             "request to get a read index";

tests/integrations/raftstore/test_hibernate.rs

@@ -4,11 +4,104 @@ use std::sync::*;
 use std::thread;
 use std::time::*;
 
-use raft::eraftpb::MessageType;
-
+use futures::Future;
+use pd_client::PdClient;
+use raft::eraftpb::{ConfChangeType, MessageType};
 use test_raftstore::*;
 use tikv_util::HandyRwLock;
 
+#[test]
+fn test_proposal_prevent_sleep() {
+    let mut cluster = new_node_cluster(0, 3);
+    configure_for_hibernate(&mut cluster);
+    cluster.run();
+    cluster.must_transfer_leader(1, new_peer(1, 1));
+    cluster.must_put(b"k1", b"v1");
+    must_get_equal(&cluster.get_engine(3), b"k1", b"v1");
+
+    // Wait till leader peer goes to sleep.
+    thread::sleep(
+        cluster.cfg.raft_store.raft_base_tick_interval.0
+            * 2
+            * cluster.cfg.raft_store.raft_election_timeout_ticks as u32,
+    );
+
+    cluster.add_send_filter(CloneFilterFactory(
+        RegionPacketFilter::new(1, 1).direction(Direction::Send),
+    ));
+    let region = cluster
+        .pd_client
+        .get_region_by_id(1)
+        .wait()
+        .unwrap()
+        .unwrap();
+
+    let put = new_put_cmd(b"k2", b"v2");
+    let mut req = new_request(1, region.get_region_epoch().clone(), vec![put], true);
+    req.mut_header().set_peer(new_peer(1, 1));
+    // ignore error, we just want to send this command to peer (1, 1),
+    // and the command can't be executed because we have only one peer,
+    // so here will return timeout error, we should ignore it.
+    let _ = cluster.call_command(req, Duration::from_millis(10));
+    cluster.clear_send_filters();
+    must_get_equal(&cluster.get_engine(3), b"k2", b"v2");
+    assert_eq!(cluster.leader_of_region(1), Some(new_peer(1, 1)));
+
+    // Wait till leader peer goes to sleep.
+    thread::sleep(
+        cluster.cfg.raft_store.raft_base_tick_interval.0
+            * 2
+            * cluster.cfg.raft_store.raft_election_timeout_ticks as u32,
+    );
+    cluster.add_send_filter(CloneFilterFactory(
+        RegionPacketFilter::new(1, 1).direction(Direction::Send),
+    ));
+    let mut request = new_request(
+        region.get_id(),
+        region.get_region_epoch().clone(),
+        vec![new_read_index_cmd()],
+        true,
+    );
+    request.mut_header().set_peer(new_peer(1, 1));
+    let (cb, rx) = make_cb(&request);
+    // send to peer 2
+    cluster
+        .sim
+        .rl()
+        .async_command_on_node(1, request, cb)
+        .unwrap();
+    thread::sleep(Duration::from_millis(10));
+    cluster.clear_send_filters();
+    let resp = rx.recv_timeout(Duration::from_secs(5)).unwrap();
+    assert!(
+        !resp.get_header().has_error(),
+        "{:?}",
+        resp.get_header().get_error()
+    );
+
+    // Wait till leader peer goes to sleep.
+    thread::sleep(
+        cluster.cfg.raft_store.raft_base_tick_interval.0
+            * 2
+            * cluster.cfg.raft_store.raft_election_timeout_ticks as u32,
+    );
+    cluster.add_send_filter(CloneFilterFactory(
+        RegionPacketFilter::new(1, 1).direction(Direction::Send),
+    ));
+    let conf_change = new_change_peer_request(ConfChangeType::RemoveNode, new_peer(3, 3));
+    let mut admin_req = new_admin_request(1, &region.get_region_epoch(), conf_change);
+    admin_req.mut_header().set_peer(new_peer(1, 1));
+    let (cb, _rx) = make_cb(&admin_req);
+    cluster
+        .sim
+        .rl()
+        .async_command_on_node(1, admin_req, cb)
+        .unwrap();
+    thread::sleep(Duration::from_millis(10));
+    cluster.clear_send_filters();
+    cluster.pd_client.must_none_peer(1, new_peer(3, 3));
+}
+
 /// Tests whether single voter still replicates log to learner after restart.
 ///
 /// A voter will become leader in a single tick. The case check if the role