diff --git a/src/storage/blocksstable/ob_block_manager.cpp b/src/storage/blocksstable/ob_block_manager.cpp
index a1fc41ac50..c532407e09 100644
--- a/src/storage/blocksstable/ob_block_manager.cpp
+++ b/src/storage/blocksstable/ob_block_manager.cpp
@@ -1552,6 +1552,8 @@ int ObBlockManager::extend_file_size_if_need()
   int64_t reserved_size = 4 * 1024 * 1024 * 1024L; //default RESERVED_DISK_SIZE -> 4G
 
   if (OB_ISNULL(io_device_)) {
+    ret = OB_NOT_INIT;
+    LOG_WARN("block manager hasn't inited", K(ret), KP(io_device_));
   } else if (OB_FAIL(SLOGGERMGR.get_reserved_size(reserved_size))) {
     LOG_WARN("Fail to get reserved size", K(ret));
   } else if (!check_can_be_extend(reserved_size)) {
diff --git a/src/storage/blocksstable/ob_index_block_builder.cpp b/src/storage/blocksstable/ob_index_block_builder.cpp
index d769e6b301..bff6c0464a 100644
--- a/src/storage/blocksstable/ob_index_block_builder.cpp
+++ b/src/storage/blocksstable/ob_index_block_builder.cpp
@@ -984,7 +984,7 @@ int ObSSTableIndexBuilder::parse_macro_header(
   if (OB_UNLIKELY(buf_size <= 0) || OB_ISNULL(buf)) {
     ret = OB_INVALID_ARGUMENT;
     STORAGE_LOG(WARN, "the argument is invalid", K(ret), K(buf_size), KP(buf));
-  } else if (common_header.deserialize(buf, buf_size, pos)) {
+  } else if (OB_FAIL(common_header.deserialize(buf, buf_size, pos))) {
     STORAGE_LOG(WARN, "fail to deserialize common header", K(ret), K(buf_size), KP(buf), K(pos));
   } else if (OB_FAIL(macro_header.deserialize(buf, buf_size, pos))) {
     STORAGE_LOG(WARN, "fail to deserialize macro header", K(ret), KP(buf), K(buf_size), K(pos));
diff --git a/src/storage/blocksstable/ob_sstable.cpp b/src/storage/blocksstable/ob_sstable.cpp
index 9fb1bf7286..cd9e949876 100644
--- a/src/storage/blocksstable/ob_sstable.cpp
+++ b/src/storage/blocksstable/ob_sstable.cpp
@@ -1152,7 +1152,7 @@ void ObSSTable::dec_macro_ref() const
       }
     }
     iterator.reset();
-    if (OB_FAIL(meta_handle.get_sstable_meta().get_macro_info().get_linked_block_iter(iterator))) {
+    if (OB_FAIL(meta_handle.get_sstable_meta().get_macro_info().get_linked_block_iter(iterator))) { // ignore ret
       LOG_ERROR("fail to get linked block iterator", K(ret), KPC(this));
     } else {
       while (OB_SUCC(iterator.get_next_macro_id(macro_id))) {
diff --git a/src/storage/blocksstable/ob_tmp_file_cache.cpp b/src/storage/blocksstable/ob_tmp_file_cache.cpp
index 5c3adfc132..298757fa39 100644
--- a/src/storage/blocksstable/ob_tmp_file_cache.cpp
+++ b/src/storage/blocksstable/ob_tmp_file_cache.cpp
@@ -1483,7 +1483,7 @@ int ObTmpTenantMemBlockManager::exec_wait()
               OB_TMP_FILE_STORE.dec_block_cache_num(tenant_id_, 1);
               ObTaskController::get().allow_next_syslog();
               STORAGE_LOG(INFO, "succeed to wash a block", K(block_id), K(macro_id),
-                  "free_page_nums:", free_page_nums, K(t_mblk_map_.size()));
+                  K(free_page_nums), K(t_mblk_map_.size()));
             }
           }
         }
diff --git a/src/storage/ls/ob_ls_tablet_service.cpp b/src/storage/ls/ob_ls_tablet_service.cpp
index 42196146a1..28c238beed 100755
--- a/src/storage/ls/ob_ls_tablet_service.cpp
+++ b/src/storage/ls/ob_ls_tablet_service.cpp
@@ -3671,7 +3671,8 @@ int ObLSTabletService::check_old_row_legitimacy(
       if (OB_TMP_FAIL(check_real_leader_for_4377_(run_ctx.store_ctx_.ls_id_))) {
         ret = tmp_ret;
         LOG_WARN("check real leader for 4377 found exception", K(ret), K(old_row), K(data_table));
-      } else if (OB_TMP_FAIL(check_need_rollback_in_transfer_for_4377_(run_ctx.store_ctx_.mvcc_acc_ctx_.tx_desc_,
+      } else if (nullptr != run_ctx.store_ctx_.mvcc_acc_ctx_.tx_desc_
+          && OB_TMP_FAIL(check_need_rollback_in_transfer_for_4377_(run_ctx.store_ctx_.mvcc_acc_ctx_.tx_desc_,
                                                                        data_tablet_handle))) {
         ret = tmp_ret;
         LOG_WARN("check need rollback in transfer for 4377 found exception", K(ret), K(old_row), K(data_table));
@@ -6267,6 +6268,7 @@ int ObLSTabletService::check_need_rollback_in_transfer_for_4377_(const transacti
   bool unused_committed_flag = false;
 
   if (OB_ISNULL(tx_desc)) {
+    ret = OB_ERR_UNEXPECTED;
     LOG_WARN("tx_desc is null when check 4377", K(ret));
   } else if (OB_FAIL(data_tablet_handle.get_obj()->ObITabletMdsInterface::get_latest_tablet_status(
                user_data, unused_committed_flag))) {
diff --git a/src/storage/meta_mem/ob_tenant_meta_mem_mgr.cpp b/src/storage/meta_mem/ob_tenant_meta_mem_mgr.cpp
index 99398841bd..d059b00ca8 100755
--- a/src/storage/meta_mem/ob_tenant_meta_mem_mgr.cpp
+++ b/src/storage/meta_mem/ob_tenant_meta_mem_mgr.cpp
@@ -1235,7 +1235,9 @@ int ObTenantMetaMemMgr::acquire_tablet_from_pool(
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid argument", K(ret), K(key), K(type));
   } else if (OB_FAIL(acquire_tablet(type, tablet_handle))) {
-    LOG_WARN("fail to acquire tablet", K(ret), K(type));
+    if (OB_ALLOCATE_MEMORY_FAILED != ret) {
+      LOG_WARN("fail to acquire tablet", K(ret), K(type));
+    }
   } else {
     tablet_handle.set_wash_priority(priority);
     LOG_DEBUG("acquire tablet from pool", K(tablet_handle));
@@ -1283,7 +1285,9 @@ int ObTenantMetaMemMgr::acquire_tablet(
     LOG_WARN("not supported to wash", K(ret), K(type));
   }
   if (FAILEDx(meta_obj.pool_->alloc_obj(buf))) {
-    LOG_WARN("fail to acquire tablet buffer", K(ret));
+    if (OB_ALLOCATE_MEMORY_FAILED != ret) {
+      LOG_WARN("fail to acquire tablet buffer", K(ret));
+    }
   } else if (OB_ISNULL(buf)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("tablet buffer is nullptr", K(ret), KP(buf));
@@ -2172,7 +2176,9 @@ int ObTenantMetaMemMgr::try_wash_tablet(const std::type_info &type_info, void *&
     SpinWLockGuard guard(wash_lock_);
     time_guard.click("wait_lock");
     if (OB_FAIL(get_wash_tablet_candidate(type_info, info))) {
-      LOG_WARN("fail to get candidate tablet for wash", K(ret));
+      if (OB_ITER_END != ret) {
+        LOG_WARN("fail to get candidate tablet for wash", K(ret));
+      }
     } else {
       time_guard.click("get_candidate_cost");
       if (OB_FAIL(do_wash_candidate_tablet(info, tablet_handle, free_obj))) {
@@ -2183,7 +2189,7 @@ int ObTenantMetaMemMgr::try_wash_tablet(const std::type_info &type_info, void *&
       time_guard.click("wash_tablet");
     }
   }
-  if (OB_SUCC(ret)) {
+  if (OB_SUCC(ret) || OB_ITER_END == ret) {
     if (OB_ISNULL(free_obj)) {
       LOG_WARN("no object can be washed", K(ret), K(is_large),
           "tablet count", tablet_map_.count(), K(tablet_buffer_pool_), K(large_tablet_buffer_pool_),
diff --git a/src/storage/meta_mem/ob_tenant_meta_obj_pool.h b/src/storage/meta_mem/ob_tenant_meta_obj_pool.h
index e67551c349..9786f4f18b 100644
--- a/src/storage/meta_mem/ob_tenant_meta_obj_pool.h
+++ b/src/storage/meta_mem/ob_tenant_meta_obj_pool.h
@@ -231,14 +231,18 @@ int ObTenantMetaObjPool<T>::acquire(T *&t)
       ob_usleep(1);
       void *free_obj = nullptr;
       if (OB_FAIL((*wash_func_)(typeid(T), free_obj))) {
-        STORAGE_LOG(WARN, "wash function fail", K(ret));
+        if (OB_ITER_END != ret) {
+          STORAGE_LOG(WARN, "wash function fail", K(ret));
+        }
       } else {
         t = static_cast<T *>(free_obj);
       }
     }
-    if (OB_ISNULL(t)) {
-      ret = OB_ALLOCATE_MEMORY_FAILED;
-      STORAGE_LOG(WARN, "no object could be acquired", K(ret));
+    if (OB_SUCC(ret) || OB_ITER_END == ret) {
+      if (OB_ISNULL(t)) {
+        ret = OB_ALLOCATE_MEMORY_FAILED;
+        STORAGE_LOG(DEBUG, "no object could be acquired", K(ret));
+      }
     }
   }
   return ret;