diff --git a/src/storage/slog_ckpt/ob_tenant_checkpoint_slog_handler.cpp b/src/storage/slog_ckpt/ob_tenant_checkpoint_slog_handler.cpp
index 3f8af5d1d1..00c76f6da8 100755
--- a/src/storage/slog_ckpt/ob_tenant_checkpoint_slog_handler.cpp
+++ b/src/storage/slog_ckpt/ob_tenant_checkpoint_slog_handler.cpp
@@ -234,7 +234,7 @@ ObTenantCheckpointSlogHandler::ObTenantCheckpointSlogHandler()
     finished_replay_tablet_cnt_(0),
     replay_create_tablet_errcode_(OB_SUCCESS),
     lock_(common::ObLatchIds::SLOG_CKPT_LOCK),
-    mutex_(),
+    slog_check_lock_(common::ObLatchIds::SLOG_CKPT_LOCK),
     tablet_key_set_(),
     is_copying_tablets_(false),
     ckpt_cursor_(),
@@ -587,7 +587,7 @@ int ObTenantCheckpointSlogHandler::read_from_share_blk(
   int ret = OB_SUCCESS;
   ObSharedBlockReadHandle read_handle;
   ObSharedBlockReadInfo read_info;
-  read_info.io_desc_.set_wait_event(ObWaitEventIds::SLOG_CKPT_LOCK_WAIT);
+  read_info.io_desc_.set_wait_event(ObWaitEventIds::DB_FILE_DATA_READ);
   read_info.addr_ = addr;
   if (OB_FAIL(shared_block_rwriter_.async_read(read_info, read_handle))) {
     LOG_WARN("fail to read tablet from macro block", K(ret), K(read_info));
@@ -852,7 +852,7 @@ int ObTenantCheckpointSlogHandler::report_slog(
     int64_t file_id;
     int64_t offset;
     int64_t size;
-    lib::ObMutexGuard guard(mutex_);
+    TCRLockGuard guard(slog_check_lock_);
     if (is_copying_tablets_) {
       if (OB_UNLIKELY(!ckpt_cursor_.is_valid())) {
         LOG_WARN("checkpoint cursor is invalid", K(ret), K(ckpt_cursor_));
@@ -880,7 +880,6 @@ int ObTenantCheckpointSlogHandler::check_slog(const ObTabletMapKey &tablet_key,
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("tablet key is invalid", K(ret), K(tablet_key));
   } else {
-    lib::ObMutexGuard guard(mutex_);
     int tmp_ret = tablet_key_set_.exist_refactored(tablet_key);
     if (OB_HASH_EXIST == tmp_ret) {
       has_slog = true;
@@ -996,7 +995,7 @@ int ObTenantCheckpointSlogHandler::write_checkpoint(bool is_force)
 int ObTenantCheckpointSlogHandler::get_cur_cursor()
 {
   int ret = OB_SUCCESS;
-  lib::ObMutexGuard guard(mutex_);
+  TCWLockGuard guard(slog_check_lock_);
   tablet_key_set_.destroy();
   if (OB_FAIL(MTL(ObStorageLogger *)->get_active_cursor(ckpt_cursor_))) {
     LOG_WARN("fail to get current cursor", K(ret));
@@ -1010,7 +1009,7 @@ int ObTenantCheckpointSlogHandler::get_cur_cursor()
 
 void ObTenantCheckpointSlogHandler::clean_copy_status()
 {
-  lib::ObMutexGuard guard(mutex_);
+  TCWLockGuard guard(slog_check_lock_);
   is_copying_tablets_ = false;
   tablet_key_set_.destroy();
 }
diff --git a/src/storage/slog_ckpt/ob_tenant_checkpoint_slog_handler.h b/src/storage/slog_ckpt/ob_tenant_checkpoint_slog_handler.h
index 7d0a0f905f..3d7333ed1f 100644
--- a/src/storage/slog_ckpt/ob_tenant_checkpoint_slog_handler.h
+++ b/src/storage/slog_ckpt/ob_tenant_checkpoint_slog_handler.h
@@ -225,7 +225,7 @@ private:
   int64_t finished_replay_tablet_cnt_;
   int replay_create_tablet_errcode_;
   common::TCRWLock lock_;  // protect block_handle
-  lib::ObMutex mutex_;
+  common::TCRWLock slog_check_lock_; // protect is_copying_tablets_
   common::hash::ObHashSet<ObTabletMapKey> tablet_key_set_;
   bool is_copying_tablets_;
   ObLogCursor ckpt_cursor_;
diff --git a/src/storage/slog_ckpt/ob_tenant_storage_checkpoint_writer.cpp b/src/storage/slog_ckpt/ob_tenant_storage_checkpoint_writer.cpp
index 434c7a64a9..514cdb8019 100755
--- a/src/storage/slog_ckpt/ob_tenant_storage_checkpoint_writer.cpp
+++ b/src/storage/slog_ckpt/ob_tenant_storage_checkpoint_writer.cpp
@@ -421,7 +421,7 @@ int ObTenantStorageCheckpointWriter::do_rollback(
   char *buf = nullptr;
   int64_t pos = 0;
   read_info.addr_ = load_addr;
-  read_info.io_desc_.set_wait_event(ObWaitEventIds::SLOG_CKPT_LOCK_WAIT);
+  read_info.io_desc_.set_wait_event(ObWaitEventIds::DB_FILE_DATA_READ);
 
   if (OB_FAIL(ObSharedBlockReaderWriter::async_read(read_info, block_handle))) {
     LOG_WARN("fail to read tablet buf from macro block", K(ret), K(read_info));
@@ -451,7 +451,7 @@ int ObTenantStorageCheckpointWriter::get_tablet_with_addr(
   char *buf = nullptr;
   int64_t pos = 0;
   read_info.addr_ = addr_info.new_addr_;
-  read_info.io_desc_.set_wait_event(ObWaitEventIds::SLOG_CKPT_LOCK_WAIT);
+  read_info.io_desc_.set_wait_event(ObWaitEventIds::DB_FILE_DATA_READ);
 
   do {
     ObArenaAllocator allocator("SlogCkptWriter");