diff --git a/Cargo.lock b/Cargo.lock
index 1964dd22c387..f99db871d305 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3429,6 +3429,7 @@ dependencies = [
  "futures 0.3.15",
  "grpcio",
  "grpcio-health",
+ "health_controller",
  "int-enum",
  "keys",
  "kvproto",
diff --git a/proxy_components/engine_store_ffi/src/core/common.rs b/proxy_components/engine_store_ffi/src/core/common.rs
index c12509cea56f..58f9d14bbc82 100644
--- a/proxy_components/engine_store_ffi/src/core/common.rs
+++ b/proxy_components/engine_store_ffi/src/core/common.rs
@@ -5,14 +5,13 @@ pub use std::{
     io::Write,
     ops::DerefMut,
     path::PathBuf,
-    str::FromStr,
     sync::{atomic::Ordering, mpsc, Arc, Mutex, RwLock},
     time::SystemTime,
 };
 
 pub use collections::HashMap;
 pub use engine_tiflash::{CachedRegionInfo, CachedRegionInfoManager};
-pub use engine_traits::{RaftEngine, RaftEngineDebug, SstMetaInfo, CF_LOCK, CF_RAFT};
+pub use engine_traits::{RaftEngine, SstMetaInfo, CF_LOCK, CF_RAFT};
 pub use kvproto::{
     metapb::Region,
     raft_cmdpb::{AdminCmdType, AdminRequest, AdminResponse, CmdType, RaftCmdRequest},
diff --git a/proxy_components/engine_store_ffi/src/core/fast_add_peer.rs b/proxy_components/engine_store_ffi/src/core/fast_add_peer.rs
index 2d87fc3e8561..aa19b838828e 100644
--- a/proxy_components/engine_store_ffi/src/core/fast_add_peer.rs
+++ b/proxy_components/engine_store_ffi/src/core/fast_add_peer.rs
@@ -436,15 +436,13 @@ impl<T: Transport + 'static, ER: RaftEngine> ProxyForwarder<T, ER> {
     ) -> RaftStoreResult<u64> {
         match self.raft_engine.get_entry(region_id, index)? {
             Some(entry) => Ok(entry.get_term()),
-            None => {
-                return Err(box_err!(
-                    "can't find entry for index {} of region {}, peer_id: {}, tag {}",
-                    index,
-                    region_id,
-                    peer_id,
-                    tag
-                ));
-            }
+            None => Err(box_err!(
+                "can't find entry for index {} of region {}, peer_id: {}, tag {}",
+                index,
+                region_id,
+                peer_id,
+                tag
+            )),
         }
     }
 
diff --git a/proxy_components/engine_store_ffi/src/core/forward_raft/mod.rs b/proxy_components/engine_store_ffi/src/core/forward_raft/mod.rs
index 728b4c2e3400..8da561aa0f87 100644
--- a/proxy_components/engine_store_ffi/src/core/forward_raft/mod.rs
+++ b/proxy_components/engine_store_ffi/src/core/forward_raft/mod.rs
@@ -7,5 +7,4 @@ mod snapshot;
 
 pub use command::*;
 pub use fap_snapshot::*;
-pub use region::*;
 pub use snapshot::*;
diff --git a/proxy_components/engine_tiflash/src/properties.rs b/proxy_components/engine_tiflash/src/properties.rs
index b9032e53f8fa..d9d5848ff019 100644
--- a/proxy_components/engine_tiflash/src/properties.rs
+++ b/proxy_components/engine_tiflash/src/properties.rs
@@ -1,4 +1,5 @@
 // Copyright 2017 TiKV Project Authors. Licensed under Apache-2.0.
+#![allow(clippy::redundant_closure)]
 
 use std::{
     cmp,
diff --git a/proxy_components/mock-engine-store/Cargo.toml b/proxy_components/mock-engine-store/Cargo.toml
index c12122ce4716..0b0530a3e067 100644
--- a/proxy_components/mock-engine-store/Cargo.toml
+++ b/proxy_components/mock-engine-store/Cargo.toml
@@ -64,6 +64,7 @@ proxy_server = { workspace = true }
 # proxy_test_raftstore_v2 = { workspace = true }
 raft = { version = "0.7.0", default-features = false, features = ["protobuf-codec"] }
 raft_log_engine = { workspace = true }
+health_controller = { workspace = true }
 raftstore = { workspace = true, default-features = false }
 raftstore-v2 = { workspace = true, default-features = false }
 rand = "0.8"
diff --git a/proxy_components/mock-engine-store/src/lib.rs b/proxy_components/mock-engine-store/src/lib.rs
index 7923e256a0c5..a79abef02a13 100644
--- a/proxy_components/mock-engine-store/src/lib.rs
+++ b/proxy_components/mock-engine-store/src/lib.rs
@@ -1,4 +1,5 @@
 // Copyright 2022 TiKV Project Authors. Licensed under Apache-2.0.
+#![allow(stable_features)]
 #![feature(vec_into_raw_parts)]
 #![feature(slice_take)]
 #![feature(return_position_impl_trait_in_trait)]
diff --git a/proxy_components/mock-engine-store/src/mock_cluster/test_utils.rs b/proxy_components/mock-engine-store/src/mock_cluster/test_utils.rs
index 650d9a96d36d..4ea89414f67f 100644
--- a/proxy_components/mock-engine-store/src/mock_cluster/test_utils.rs
+++ b/proxy_components/mock-engine-store/src/mock_cluster/test_utils.rs
@@ -501,7 +501,7 @@ pub fn get_valid_compact_index_by(
     states: &HashMap<u64, States>,
     use_nodes: Option<Vec<u64>>,
 ) -> (u64, u64) {
-    let set = use_nodes.map(|nodes| HashSet::from_iter(nodes.clone().into_iter()));
+    let set = use_nodes.map(|nodes| HashSet::from_iter(nodes.clone()));
     states
         .iter()
         .filter(|(k, _)| {
diff --git a/proxy_components/mock-engine-store/src/mock_cluster/v1/cluster_ext_v1.rs b/proxy_components/mock-engine-store/src/mock_cluster/v1/cluster_ext_v1.rs
index 8d8cef7491e8..c3fe03e97598 100644
--- a/proxy_components/mock-engine-store/src/mock_cluster/v1/cluster_ext_v1.rs
+++ b/proxy_components/mock-engine-store/src/mock_cluster/v1/cluster_ext_v1.rs
@@ -38,7 +38,7 @@ impl<T: Simulator<TiFlashEngine>> Cluster<T> {
         let mut node_ids: Vec<u64> = self.engines.iter().map(|(&id, _)| id).collect();
         // We force iterate engines in sorted order.
         node_ids.sort();
-        for (_, node_id) in node_ids.iter().enumerate() {
+        for node_id in node_ids.iter() {
             // Always at the front of the vector since iterate from 0.
             self.register_ffi_helper_set(Some(0), *node_id);
         }
diff --git a/proxy_components/mock-engine-store/src/mock_cluster/v1/common.rs b/proxy_components/mock-engine-store/src/mock_cluster/v1/common.rs
index 128da887d4a9..aba5e74105d6 100644
--- a/proxy_components/mock-engine-store/src/mock_cluster/v1/common.rs
+++ b/proxy_components/mock-engine-store/src/mock_cluster/v1/common.rs
@@ -1,6 +1,5 @@
 // Copyright 2022 TiKV Project Authors. Licensed under Apache-2.0.
 
 pub use crate::mock_cluster::{
-    cluster_ext::ClusterExt, common::*, config::MixedClusterConfig, init_global_ffi_helper_set,
-    FFIHelperSet,
+    cluster_ext::ClusterExt, common::*, config::MixedClusterConfig, FFIHelperSet,
 };
diff --git a/proxy_components/mock-engine-store/src/mock_cluster/v1/node.rs b/proxy_components/mock-engine-store/src/mock_cluster/v1/node.rs
index 275d093a0f2d..915b40d2f641 100644
--- a/proxy_components/mock-engine-store/src/mock_cluster/v1/node.rs
+++ b/proxy_components/mock-engine-store/src/mock_cluster/v1/node.rs
@@ -11,6 +11,7 @@ use encryption_export::DataKeyManager;
 use engine_rocks::RocksSnapshot;
 use engine_store_ffi::core::DebugStruct;
 use engine_traits::{Engines, MiscExt, Peekable, SnapshotContext};
+use health_controller::HealthController;
 use kvproto::{
     metapb,
     raft_cmdpb::*,
@@ -294,7 +295,7 @@ impl Simulator<TiFlashEngine> for NodeCluster {
             Arc::clone(&self.pd_client),
             Arc::default(),
             bg_worker.clone(),
-            None,
+            HealthController::new(),
             None,
         );
 
@@ -320,7 +321,7 @@ impl Simulator<TiFlashEngine> for NodeCluster {
             (snap_mgr, Some(tmp))
         } else {
             let trans = self.trans.core.lock().unwrap();
-            let &(ref snap_mgr, _) = &trans.snap_paths[&node_id];
+            let (snap_mgr, _) = &trans.snap_paths[&node_id];
             (snap_mgr.clone(), None)
         };
 
diff --git a/proxy_components/mock-engine-store/src/mock_cluster/v1/server.rs b/proxy_components/mock-engine-store/src/mock_cluster/v1/server.rs
index 1d305d9ac2b4..c2d2e4778ceb 100644
--- a/proxy_components/mock-engine-store/src/mock_cluster/v1/server.rs
+++ b/proxy_components/mock-engine-store/src/mock_cluster/v1/server.rs
@@ -1,4 +1,5 @@
 // Copyright 2016 TiKV Project Authors. Licensed under Apache-2.0.
+#![allow(clippy::arc_with_non_send_sync)]
 
 use std::{
     path::Path,
@@ -19,6 +20,7 @@ use engine_traits::{Engines, MiscExt, SnapshotContext};
 use futures::executor::block_on;
 use grpcio::{ChannelBuilder, EnvBuilder, Environment, Error as GrpcError, Service};
 use grpcio_health::HealthService;
+use health_controller::HealthController;
 use kvproto::{
     deadlock::create_deadlock,
     debugpb::DebugClient,
@@ -70,7 +72,7 @@ use tikv::{
 };
 use tikv_util::{
     box_err,
-    config::VersionTrack,
+    config::{ReadableSize, VersionTrack},
     quota_limiter::QuotaLimiter,
     sys::thread::ThreadBuildWrapper,
     thd_name,
@@ -298,8 +300,15 @@ impl ServerCluster {
         );
 
         // Create coprocessor.
+        let enable_region_stats_mgr_cb: Arc<dyn Fn() -> bool + Send + Sync> =
+            if cfg.region_cache_memory_limit != ReadableSize(0) {
+                Arc::new(|| true)
+            } else {
+                Arc::new(|| false)
+            };
         let mut coprocessor_host = CoprocessorHost::new(router.clone(), cfg.coprocessor.clone());
-        let region_info_accessor = RegionInfoAccessor::new(&mut coprocessor_host);
+        let region_info_accessor =
+            RegionInfoAccessor::new(&mut coprocessor_host, enable_region_stats_mgr_cb);
 
         let raft_router = ServerRaftStoreRouter::new(router.clone(), local_reader);
         let sim_router = SimulateTransport::new(raft_router.clone());
@@ -489,6 +498,7 @@ impl ServerCluster {
             )
             .unwrap();
         let health_service = HealthService::default();
+        let health_controller = HealthController::new();
         let mut node = Node::new(
             system,
             &server_cfg.value().clone(),
@@ -497,7 +507,7 @@ impl ServerCluster {
             Arc::clone(&self.pd_client),
             state,
             bg_worker.clone(),
-            Some(health_service.clone()),
+            health_controller.clone(),
             None,
         );
         node.try_bootstrap_store(engines.clone())?;
@@ -518,7 +528,7 @@ impl ServerCluster {
                 self.env.clone(),
                 None,
                 debug_thread_pool.clone(),
-                health_service.clone(),
+                health_controller.clone(),
                 None,
             )
             .unwrap();
diff --git a/proxy_components/mock-engine-store/src/mock_store/common.rs b/proxy_components/mock-engine-store/src/mock_store/common.rs
index 68c9a57d9b03..7225ede62396 100644
--- a/proxy_components/mock-engine-store/src/mock_store/common.rs
+++ b/proxy_components/mock-engine-store/src/mock_store/common.rs
@@ -1,19 +1,15 @@
 // Copyright 2022 TiKV Project Authors. Licensed under Apache-2.0.
 pub use collections::{HashMap, HashSet};
-pub use engine_store_ffi::{
-    ffi::{
-        interfaces_ffi,
-        interfaces_ffi::{EngineStoreServerHelper, RaftStoreProxyFFIHelper, RawCppPtr, RawVoidPtr},
-        UnwrapExternCFunc,
-    },
-    TiFlashEngine,
+pub use engine_store_ffi::ffi::{
+    interfaces_ffi,
+    interfaces_ffi::{EngineStoreServerHelper, RaftStoreProxyFFIHelper, RawCppPtr, RawVoidPtr},
+    UnwrapExternCFunc,
 };
 pub use engine_traits::{
     Engines, Iterable, KvEngine, Mutable, Peekable, RaftEngine, RaftEngineReadOnly, RaftLogBatch,
     SyncMutable, WriteBatch, CF_DEFAULT, CF_LOCK, CF_RAFT, CF_WRITE,
 };
 pub use kvproto::{
-    metapb,
     raft_cmdpb::AdminCmdType,
     raft_serverpb::{PeerState, RaftApplyState, RaftLocalState, RegionLocalState},
 };
diff --git a/proxy_components/mock-engine-store/src/mock_store/mock_engine_store_server.rs b/proxy_components/mock-engine-store/src/mock_store/mock_engine_store_server.rs
index 969c28af0338..d9176d4baf03 100644
--- a/proxy_components/mock-engine-store/src/mock_store/mock_engine_store_server.rs
+++ b/proxy_components/mock-engine-store/src/mock_store/mock_engine_store_server.rs
@@ -566,7 +566,7 @@ unsafe extern "C" fn ffi_atomic_update_proxy(
     arg2: *mut interfaces_ffi::RaftStoreProxyFFIHelper,
 ) {
     let store = into_engine_store_server_wrap(arg1);
-    store.maybe_proxy_helper = Some(&mut *(arg2 as *mut RaftStoreProxyFFIHelper));
+    store.maybe_proxy_helper = Some(arg2);
 }
 
 unsafe extern "C" fn ffi_handle_destroy(
diff --git a/proxy_components/mock-engine-store/src/mock_store/mock_page_storage.rs b/proxy_components/mock-engine-store/src/mock_store/mock_page_storage.rs
index 566e30ad7431..437425d4b437 100644
--- a/proxy_components/mock-engine-store/src/mock_store/mock_page_storage.rs
+++ b/proxy_components/mock-engine-store/src/mock_store/mock_page_storage.rs
@@ -111,23 +111,23 @@ pub unsafe extern "C" fn ffi_mockps_wb_del_page(wb: RawVoidPtr, page_id: BaseBuf
 }
 
 pub unsafe extern "C" fn ffi_mockps_get_wb_size(wb: RawVoidPtr) -> u64 {
-    let wb: _ = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(wb);
+    let wb = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(wb);
     wb.data.len() as u64
 }
 
 pub unsafe extern "C" fn ffi_mockps_is_wb_empty(wb: RawVoidPtr) -> u8 {
-    let wb: _ = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(wb);
+    let wb = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(wb);
     u8::from(wb.data.is_empty())
 }
 
 pub unsafe extern "C" fn ffi_mockps_handle_merge_wb(lwb: RawVoidPtr, rwb: RawVoidPtr) {
-    let lwb: _ = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(lwb);
-    let rwb: _ = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(rwb);
+    let lwb = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(lwb);
+    let rwb = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(rwb);
     lwb.data.append(&mut rwb.data);
 }
 
 pub unsafe extern "C" fn ffi_mockps_handle_clear_wb(wb: RawVoidPtr) {
-    let wb: _ = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(wb);
+    let wb = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(wb);
     wb.data.clear();
 }
 
@@ -136,7 +136,7 @@ pub unsafe extern "C" fn ffi_mockps_handle_consume_wb(
     wb: RawVoidPtr,
 ) {
     let store = into_engine_store_server_wrap(wrap);
-    let wb: _ = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(wb);
+    let wb = <&mut MockPSWriteBatch as From<RawVoidPtr>>::from(wb);
     let mut guard = (*store.engine_store_server)
         .page_storage
         .data
diff --git a/proxy_components/proxy_ffi/src/jemalloc_utils.rs b/proxy_components/proxy_ffi/src/jemalloc_utils.rs
index 33875908b0c6..3c0654f706ac 100644
--- a/proxy_components/proxy_ffi/src/jemalloc_utils.rs
+++ b/proxy_components/proxy_ffi/src/jemalloc_utils.rs
@@ -23,56 +23,58 @@ extern "C" {
 #[allow(unused_variables)]
 #[allow(unused_mut)]
 #[allow(unused_unsafe)]
-fn issue_mallctl(command: &str) -> u64 {
-    type PtrUnderlying = u64;
-    let mut ptr: PtrUnderlying = 0;
-    let mut size = std::mem::size_of::<PtrUnderlying>() as u64;
-    let c_str = std::ffi::CString::new(command).unwrap();
-    let c_ptr: *const ::std::os::raw::c_char = c_str.as_ptr() as *const ::std::os::raw::c_char;
+pub fn issue_mallctl_args(
+    command: &str,
+    oldptr: *mut ::std::os::raw::c_void,
+    oldsize: *mut u64,
+    newptr: *mut ::std::os::raw::c_void,
+    newsize: u64,
+) -> ::std::os::raw::c_int {
     unsafe {
+        let c_str = std::ffi::CString::new(command).unwrap();
+        let c_ptr: *const ::std::os::raw::c_char = c_str.as_ptr() as *const ::std::os::raw::c_char;
         // See unprefixed_malloc_on_supported_platforms in tikv-jemalloc-sys.
         #[cfg(any(test, feature = "testexport"))]
         {
-            #[cfg(any(feature = "jemalloc"))]
+            // Test part
+            #[cfg(feature = "jemalloc")]
             {
                 // See NO_UNPREFIXED_MALLOC
                 #[cfg(any(target_os = "android", target_os = "dragonfly", target_os = "macos"))]
-                _rjem_mallctl(
-                    c_ptr,
-                    &mut ptr as *mut _ as *mut ::std::os::raw::c_void,
-                    &mut size as *mut u64,
-                    std::ptr::null_mut(),
-                    0,
-                );
+                return _rjem_mallctl(c_ptr, oldptr, oldsize, newptr, newsize);
                 #[cfg(not(any(
                     target_os = "android",
                     target_os = "dragonfly",
                     target_os = "macos"
                 )))]
-                mallctl(
-                    c_ptr,
-                    &mut ptr as *mut _ as *mut ::std::os::raw::c_void,
-                    &mut size as *mut u64,
-                    std::ptr::null_mut(),
-                    0,
-                );
+                return mallctl(c_ptr, oldptr, oldsize, newptr, newsize);
             }
+            0
         }
 
         #[cfg(not(any(test, feature = "testexport")))]
         {
-            // Must linked to tiflash.
+            // No test part
             #[cfg(feature = "external-jemalloc")]
-            mallctl(
-                c_ptr,
-                &mut ptr as *mut _ as *mut ::std::os::raw::c_void,
-                &mut size as *mut u64,
-                std::ptr::null_mut(),
-                0,
-            );
+            {
+                // Must linked to tiflash.
+                return mallctl(c_ptr, oldptr, oldsize, newptr, newsize);
+            }
+            #[cfg(not(feature = "external-jemalloc"))]
+            {
+                // Happens only with `raftstore-proxy-main`
+                #[cfg(not(any(
+                    target_os = "android",
+                    target_os = "dragonfly",
+                    target_os = "macos"
+                )))]
+                {
+                    return mallctl(c_ptr, oldptr, oldsize, newptr, newsize);
+                }
+                0
+            }
         }
     }
-    ptr
 }
 
 pub fn get_allocatep_on_thread_start() -> u64 {
diff --git a/proxy_components/proxy_ffi/src/raftstore_proxy.rs b/proxy_components/proxy_ffi/src/raftstore_proxy.rs
index 55f2be1a0852..125ed0342ff6 100644
--- a/proxy_components/proxy_ffi/src/raftstore_proxy.rs
+++ b/proxy_components/proxy_ffi/src/raftstore_proxy.rs
@@ -176,7 +176,7 @@ impl RaftStoreProxy {
                 break;
             }
             let sel = futures::future::select_all(pending);
-            let (resp, _completed_idx, remaining) = rt.block_on(async { sel.await });
+            let (resp, _completed_idx, remaining) = rt.block_on(sel);
 
             let (res, need_retry) = parse_response(&rt, resp.unwrap());
             has_need_retry |= need_retry;
diff --git a/proxy_components/proxy_ffi/src/raftstore_proxy_helper_impls.rs b/proxy_components/proxy_ffi/src/raftstore_proxy_helper_impls.rs
index 1ae277abe955..bb975cfde823 100644
--- a/proxy_components/proxy_ffi/src/raftstore_proxy_helper_impls.rs
+++ b/proxy_components/proxy_ffi/src/raftstore_proxy_helper_impls.rs
@@ -31,9 +31,7 @@ use super::{
 
 impl Clone for RaftStoreProxyPtr {
     fn clone(&self) -> RaftStoreProxyPtr {
-        RaftStoreProxyPtr {
-            inner: self.inner.clone(),
-        }
+        *self
     }
 }
 
diff --git a/proxy_components/proxy_server/src/run.rs b/proxy_components/proxy_server/src/run.rs
index ba08159f0fd4..c22a17f0174a 100644
--- a/proxy_components/proxy_server/src/run.rs
+++ b/proxy_components/proxy_server/src/run.rs
@@ -42,7 +42,6 @@ use error_code::ErrorCodeExt;
 use file_system::{get_io_rate_limiter, BytesFetcher, MetricsManager as IOMetricsManager};
 use futures::executor::block_on;
 use grpcio::{EnvBuilder, Environment};
-use grpcio_health::HealthService;
 use health_controller::HealthController;
 use kvproto::{
     debugpb::create_debug, diagnosticspb::create_diagnostics, import_sstpb::create_import_sst,
@@ -274,6 +273,7 @@ pub fn run_impl<CER: ConfiguredRaftEngine, F: KvFormat>(
 }
 
 #[inline]
+#[allow(clippy::extra_unused_type_parameters)]
 fn run_impl_only_for_decryption<CER: ConfiguredRaftEngine, F: KvFormat>(
     config: TikvConfig,
     proxy_config: ProxyConfig,
@@ -1134,7 +1134,6 @@ impl<ER: RaftEngine, F: KvFormat> TiKvServer<ER, F> {
             )
             .unwrap_or_else(|e| fatal!("failed to validate raftstore config {}", e));
         let raft_store = Arc::new(VersionTrack::new(self.core.config.raft_store.clone()));
-        let health_service = HealthService::default();
         let mut default_store = kvproto::metapb::Store::default();
 
         if !self.proxy_config.server.engine_store_version.is_empty() {
@@ -1540,6 +1539,7 @@ impl<ER: RaftEngine, F: KvFormat> TiKvServer<ER, F> {
                     .unwrap()
                     .join(Path::new(file_system::SPACE_PLACEHOLDER_FILE));
 
+                #[allow(clippy::needless_borrows_for_generic_args)]
                 let placeholder_size: u64 =
                     file_system::get_file_size(&placeholer_file_path).unwrap_or(0);