diff --git a/src/observer/dbms_job/ob_dbms_job_master.cpp b/src/observer/dbms_job/ob_dbms_job_master.cpp
index 233afc656d..8c84f2d6b8 100644
--- a/src/observer/dbms_job/ob_dbms_job_master.cpp
+++ b/src/observer/dbms_job/ob_dbms_job_master.cpp
@@ -416,7 +416,7 @@ int ObDBMSJobMaster::scheduler_job(ObDBMSJobKey *job_key, bool is_retry)
     } else {
       int tmp = alive_jobs_.erase_refactored(job_info.get_job_id_with_tenant());
       if (tmp != OB_SUCCESS) {
-        LOG_ERROR("failed delete valid job from hash set", K(ret), K(job_info));
+        LOG_INFO("failed delete valid job from hash set", K(ret), K(job_info));
       }
       allocator_.free(job_key); // job deleted!
     }
diff --git a/src/pl/ob_pl_user_type.cpp b/src/pl/ob_pl_user_type.cpp
index 5f37b29619..be4646c924 100644
--- a/src/pl/ob_pl_user_type.cpp
+++ b/src/pl/ob_pl_user_type.cpp
@@ -1391,7 +1391,10 @@ int ObPLComposite::deep_copy(ObPLComposite &src,
     if (NULL == dest) {
       dest = reinterpret_cast<ObPLComposite*>(allocator.alloc(src.get_init_size()));
       composite = static_cast<ObPLRecord*>(dest);
-      CK (OB_NOT_NULL(composite));
+      if (OB_ISNULL(composite)) {
+        ret = OB_ALLOCATE_MEMORY_FAILED;
+        LOG_WARN("allocate composite memory failed", K(ret));
+      }
       LOG_INFO("src size is: ", K(src.get_init_size()), K(src));
       OX (new(composite)ObPLRecord(src.get_id(), static_cast<ObPLRecord&>(src).get_count()));
     } else {
@@ -2095,7 +2098,10 @@ int ObPLCollection::set_row(const ObIArray<ObObj> &row, int64_t idx, bool deep_c
         if (element_.is_record_type()) {
           ObPLRecord *new_record = reinterpret_cast<ObPLRecord*>(
               allocator_->alloc(ObRecordType::get_init_size(element_.get_field_count())));
-          CK (OB_NOT_NULL(new_record));
+          if (OB_ISNULL(new_record)) {
+            ret = OB_ALLOCATE_MEMORY_FAILED;
+            LOG_WARN("allocate composite memory failed", K(ret));
+          }
           OX (new (new_record)ObPLRecord(element_.get_udt_id(), element_.get_field_count()));
           OX (new_record->set_data(row));
           OX (data_obj.set_extend(reinterpret_cast<int64_t>(new_record),
diff --git a/src/sql/resolver/ob_resolver_utils.cpp b/src/sql/resolver/ob_resolver_utils.cpp
index 730fe1d4e7..02531aa988 100644
--- a/src/sql/resolver/ob_resolver_utils.cpp
+++ b/src/sql/resolver/ob_resolver_utils.cpp
@@ -399,7 +399,7 @@ int ObResolverUtils::get_candidate_routines(ObSchemaChecker &schema_checker,
   }
 
 #define TRY_SYNONYM(synonym_name)             \
-if (OB_FAIL(ret) || 0 == routines.count()) {  \
+if ((OB_FAIL(ret) && OB_ALLOCATE_MEMORY_FAILED != ret) || 0 == routines.count()) {  \
   ret = OB_SUCCESS;                           \
   bool exist = false;                         \
   ObSynonymChecker synonym_checker;           \