diff --git a/src/storage/blocksstable/ob_tmp_file_cache.cpp b/src/storage/blocksstable/ob_tmp_file_cache.cpp
index b7f3624f27038aecf9576e5d4481afd9241521e5..03dec1b293e23094a756733289758e2eebbba84f 100644
--- a/src/storage/blocksstable/ob_tmp_file_cache.cpp
+++ b/src/storage/blocksstable/ob_tmp_file_cache.cpp
@@ -168,6 +168,9 @@ int ObTmpPageCache::prefetch(
         }
       }
     }
+    if (OB_FAIL(ret) && OB_NOT_NULL(buf)) {
+      allocator_.free(buf);
+    }
   }
   return ret;
 }
@@ -732,6 +735,8 @@ int ObTmpTenantMemBlockManager::free_macro_block(const int64_t block_id)
     STORAGE_LOG(WARN, "invalid argument", K(ret), K(block_id));
   } else if (OB_FAIL(t_mblk_map_.erase_refactored(block_id))) {
     STORAGE_LOG(WARN, "fail to erase tmp macro block", K(ret));
+  } else {
+    free_page_nums_ -= mblk_page_nums_;
   }
   return ret;
 }
@@ -959,12 +964,10 @@ int ObTmpTenantMemBlockManager::wash_with_no_wait(const uint64_t tenant_id, ObTm
   } else if (NULL == wash_block) {
     STORAGE_LOG(WARN, "The washing block is null", K(ret));
   } else {
-    int64_t free_page_nums = wash_block->get_free_page_nums();
     bool is_all_close = false;
     if (OB_FAIL(wash_block->close(is_all_close))) {
       STORAGE_LOG(WARN, "fail to close the wash block", K(ret));
     } else if (is_all_close) {
-      free_page_nums_ = free_page_nums_ + wash_block->get_free_page_nums() - free_page_nums;
       if (wash_block->is_empty()) {
         // this block don't need to wash.
         if (OB_FAIL(refresh_dir_to_blk_map(wash_block->get_dir_id(), wash_block))) {
diff --git a/src/storage/blocksstable/ob_tmp_file_store.cpp b/src/storage/blocksstable/ob_tmp_file_store.cpp
index ca88cc5c70f66c1ca0565194b7a9044fde0e5ca7..93753685778becafd98b3d51d84a1a1535d501ab 100644
--- a/src/storage/blocksstable/ob_tmp_file_store.cpp
+++ b/src/storage/blocksstable/ob_tmp_file_store.cpp
@@ -564,11 +564,11 @@ int ObTmpTenantMacroBlockManager::alloc_macro_block(
   if (OB_FAIL(ret)) {
     if (NULL != t_mblk) {
       int tmp_ret = OB_SUCCESS;
-      t_mblk->~ObTmpMacroBlock();
-      allocator_->free(block_buf);
       if (OB_SUCCESS != (tmp_ret = blocks_.erase_refactored(t_mblk->get_block_id()))) {
         STORAGE_LOG(WARN, "fail to erase from tmp macro block map", K(tmp_ret), K(t_mblk));
       }
+      t_mblk->~ObTmpMacroBlock();
+      allocator_->free(block_buf);
     }
   }
   return ret;
@@ -953,6 +953,7 @@ int ObTmpTenantFileStore::free_macro_block(ObTmpMacroBlock*& t_mblk)
 int ObTmpTenantFileStore::alloc_macro_block(const int64_t dir_id, const uint64_t tenant_id, ObTmpMacroBlock*& t_mblk)
 {
   int ret = OB_SUCCESS;
+  t_mblk = nullptr;
   if (OB_UNLIKELY(!is_inited_)) {
     ret = OB_NOT_INIT;
     STORAGE_LOG(WARN, "ObTmpMacroBlockManager has not been inited", K(ret));
@@ -973,7 +974,11 @@ int ObTmpTenantFileStore::alloc_macro_block(const int64_t dir_id, const uint64_t
         t_mblk->give_back_buf_into_cache();
       }
     }
+    if (OB_FAIL(ret) && OB_NOT_NULL(t_mblk)) {
+      allocator_.free(t_mblk);
+    }
   }
+
   return ret;
 }
 
@@ -1266,7 +1271,7 @@ int ObTmpFileStore::free_tenant_file_store(const uint64_t tenant_id)
     }
   } else if (OB_ISNULL(store)) {
     ret = OB_ERR_UNEXPECTED;
-    STORAGE_LOG(WARN, "unexcepted error, store is null", K(ret));
+    STORAGE_LOG(WARN, "unexpected error, store is null", K(ret));
   } else {
     store->~ObTmpTenantFileStore();
     allocator_.free(store);