diff --git a/deps/oblib/src/lib/container/ob_vector.ipp b/deps/oblib/src/lib/container/ob_vector.ipp
index f5c03d7de..27160ab8c 100644
--- a/deps/oblib/src/lib/container/ob_vector.ipp
+++ b/deps/oblib/src/lib/container/ob_vector.ipp
@@ -145,7 +145,7 @@ int ObVector<T, Allocator>::expand(int64_t size)
         copy(new_mem, mem_begin_, mem_end_);
       }
 
-      // deallocate old memeory
+      // deallocate old memory
       destroy();
 
       mem_begin_ = new_mem;
diff --git a/deps/oblib/src/lib/thread_local/thread_buffer.cpp b/deps/oblib/src/lib/thread_local/thread_buffer.cpp
index 8b2429734..142225339 100644
--- a/deps/oblib/src/lib/thread_local/thread_buffer.cpp
+++ b/deps/oblib/src/lib/thread_local/thread_buffer.cpp
@@ -80,7 +80,7 @@ ThreadSpecificBuffer::Buffer *ThreadSpecificBuffer::get_buffer() const
       ptr = ob_malloc(size_ + sizeof(Buffer), ObModIds::OB_THREAD_BUFFER);
       if (NULL == ptr) {
         // malloc failed;
-        _OB_LOG_RET(ERROR, OB_ALLOCATE_MEMORY_FAILED, "malloc thread specific memeory failed.");
+        _OB_LOG_RET(ERROR, OB_ALLOCATE_MEMORY_FAILED, "malloc thread specific memory failed.");
       } else {
         int ret = pthread_setspecific(key_, ptr);
         if (0 != ret) {
diff --git a/src/sql/rewrite/ob_query_range.cpp b/src/sql/rewrite/ob_query_range.cpp
index 295476712..f5ec77b68 100644
--- a/src/sql/rewrite/ob_query_range.cpp
+++ b/src/sql/rewrite/ob_query_range.cpp
@@ -196,7 +196,7 @@ int ObQueryRange::init_query_range_ctx(ObIAllocator &allocator,
         LOG_WARN("expr result type is null", K(ret));
       } else if (OB_ISNULL(ptr = allocator.alloc(sizeof(ObKeyPartPos)))) {
         ret = OB_ALLOCATE_MEMORY_FAILED;
-        LOG_WARN("failed to allocate memeory for ObKeyPartPos", K(ret));
+        LOG_WARN("failed to allocate memory for ObKeyPartPos", K(ret));
       } else {
         ObExprResType tmp_expr_type = *expr_res_type;
         if (tmp_expr_type.is_lob_locator()) {
diff --git a/unittest/storage/mockcontainer/mock_ob_iterator.cpp b/unittest/storage/mockcontainer/mock_ob_iterator.cpp
index 97c0e542b..420f81775 100644
--- a/unittest/storage/mockcontainer/mock_ob_iterator.cpp
+++ b/unittest/storage/mockcontainer/mock_ob_iterator.cpp
@@ -859,7 +859,7 @@ int ObMockIteratorBuilder::static_init()
       && OB_SUCCESS != (ret = str_to_flag_.create(
                                   cal_next_prime(FLAG_NUM * 2),
                                   ObModIds::OB_HASH_BUCKET))) {
-    STORAGE_LOG(WARN, "out of memeory");
+    STORAGE_LOG(WARN, "out of memory");
   } else if (OB_SUCCESS != str_to_flag_.set_refactored(
                  ObString::make_string("RF_ROW_DOES_NOT_EXIST"),
                  ObDmlFlag::DF_NOT_EXIST)
@@ -894,7 +894,7 @@ int ObMockIteratorBuilder::static_init()
       && OB_SUCCESS != (ret = str_to_dml_.create(
                                   cal_next_prime(DML_NUM * 2),
                                   ObModIds::OB_HASH_BUCKET))) {
-    STORAGE_LOG(WARN, "out of memeory");
+    STORAGE_LOG(WARN, "out of memory");
   } else if (OB_SUCCESS != str_to_dml_.set_refactored(
                  ObString::make_string("INSERT"), DF_INSERT)
              || OB_SUCCESS != str_to_dml_.set_refactored(
@@ -913,7 +913,7 @@ int ObMockIteratorBuilder::static_init()
       && OB_SUCCESS != (ret = str_to_base_.create(
                                   cal_next_prime(BASE_NUM * 2),
                                   ObModIds::OB_HASH_BUCKET))) {
-    STORAGE_LOG(WARN, "out of memeory");
+    STORAGE_LOG(WARN, "out of memory");
   } else if (OB_SUCCESS != str_to_base_.set_refactored(
                  ObString::make_string("TRUE"), true)
              || OB_SUCCESS != str_to_base_.set_refactored(
@@ -928,7 +928,7 @@ int ObMockIteratorBuilder::static_init()
       && OB_SUCCESS != (ret = str_to_is_get_.create(
                                   cal_next_prime(BASE_NUM * 2),
                                   ObModIds::OB_HASH_BUCKET))) {
-    STORAGE_LOG(WARN, "out of memeory");
+    STORAGE_LOG(WARN, "out of memory");
   } else if (OB_SUCCESS != str_to_is_get_.set_refactored(
                  ObString::make_string("TRUE"), true)
              || OB_SUCCESS != str_to_is_get_.set_refactored(
@@ -943,7 +943,7 @@ int ObMockIteratorBuilder::static_init()
       && OB_SUCCESS != (ret = str_to_trans_id_.create(
                                   cal_next_prime(BASE_NUM * 3),
                                   ObModIds::OB_HASH_BUCKET))) {
-    STORAGE_LOG(WARN, "out of memeory");
+    STORAGE_LOG(WARN, "out of memory");
   } else if (OB_SUCCESS != str_to_trans_id_.set_refactored(
           ObString::make_string("trans_id_1"), trans_id_list_[0])
       || OB_SUCCESS != str_to_trans_id_.set_refactored(
@@ -981,7 +981,7 @@ int ObMockIteratorBuilder::static_init()
   if (ret == OB_SUCCESS
       && OB_SUCCESS != (ret = str_to_multi_version_row_flag_.create(
       cal_next_prime(MULTI_VERSION_ROW_FLAG_NUM * 2), ObModIds::OB_HASH_BUCKET))) {
-    STORAGE_LOG(WARN, "out of memeory");
+    STORAGE_LOG(WARN, "out of memory");
   } else if (OB_SUCCESS != str_to_multi_version_row_flag_.set_refactored(ObString::make_string("N"), 0)
       || OB_SUCCESS != str_to_multi_version_row_flag_.set_refactored(ObString::make_string("C"), 8)
       || OB_SUCCESS != str_to_multi_version_row_flag_.set_refactored(ObString::make_string("L"), 32)