diff --git a/src/rootserver/freeze/ob_checksum_validator.cpp b/src/rootserver/freeze/ob_checksum_validator.cpp
index 742b47a93e65a0e785ee8dee9723b8c84de28453..519b4fe987e69a9ad5b53a7d49055714578616ce 100644
--- a/src/rootserver/freeze/ob_checksum_validator.cpp
+++ b/src/rootserver/freeze/ob_checksum_validator.cpp
@@ -322,8 +322,8 @@ int ObIndexChecksumValidator::do_check(const ObSimpleFrozenStatus &frozen_status
         if (FAILEDx(ObTabletReplicaChecksumOperator::check_column_checksum(tenant_id_, *data_table_schema,
             *index_table_schema, frozen_status.frozen_scn_, *sql_proxy_))) {
           if (OB_CHECKSUM_ERROR == ret) {
-            LOG_ERROR("ERROR! ERROR! ERROR! checksum error in index checksum", KR(ret), K(*data_table_schema), K(*index_table_schema), 
-              K_(tenant_id), K(frozen_status));
+            LOG_ERROR("ERROR! ERROR! ERROR! checksum error in index checksum", KR(ret), K_(tenant_id),
+              K(frozen_status), K(*data_table_schema), K(*index_table_schema));
             check_ret = OB_CHECKSUM_ERROR;
             ret = OB_SUCCESS; // continue checking next checksum
           } else if (OB_EAGAIN != ret) {
diff --git a/src/rootserver/freeze/ob_major_merge_scheduler.cpp b/src/rootserver/freeze/ob_major_merge_scheduler.cpp
index 8f4a34abb18bd72f44336dc648301b046507f236..903c07fbe91e1cc76fe351d361200c66628ba2fa 100644
--- a/src/rootserver/freeze/ob_major_merge_scheduler.cpp
+++ b/src/rootserver/freeze/ob_major_merge_scheduler.cpp
@@ -631,7 +631,6 @@ int ObMajorMergeScheduler::update_merge_status(const int64_t expected_epoch)
               }
             }
           }
-
         }
       }
     }
diff --git a/src/share/ob_column_checksum_error_operator.cpp b/src/share/ob_column_checksum_error_operator.cpp
index cce46018bfee6f8f92950b7e1e01850877287c48..ae5433cc9bcb1276a4b1ca0facfef3f0509bf394 100644
--- a/src/share/ob_column_checksum_error_operator.cpp
+++ b/src/share/ob_column_checksum_error_operator.cpp
@@ -87,9 +87,12 @@ int ObColumnChecksumErrorOperator::insert_column_checksum_err_info_(
     LOG_WARN("fail to add pk column", KR(ret), K(tenant_id), K(info));
   } else if (OB_FAIL(exec.exec_insert_update(OB_ALL_COLUMN_CHECKSUM_ERROR_INFO_TNAME, dml, affected_rows))) {
     LOG_WARN("fail to splice exec_insert_update", KR(ret), K(meta_tenant_id), K(info));
-  } else if (!is_single_row(affected_rows)) {
+  } else if (affected_rows < 0 || affected_rows > 2) {
+    // one ckm_error info may insert multi-times due to verifying checksum multi-times. if re-insert, cuz we
+    // use 'on duplicate key update', the 'affected_rows' may be 0(not pk_column values unchanged)
+    // or 2(not pk_column values changed)
     ret = OB_ERR_UNEXPECTED;
-    LOG_ERROR("unexpected affected rows", KR(ret), K(affected_rows), K(meta_tenant_id), K(info));
+    LOG_WARN("unexpected affected rows", KR(ret), K(affected_rows));
   }
   return ret;
 }
diff --git a/src/share/ob_tablet_replica_checksum_operator.cpp b/src/share/ob_tablet_replica_checksum_operator.cpp
index 76c67ed34d0026e383790381c75c6116a0bdb79d..0d7853533347b672b1a68cc191eac22fcd483f76 100644
--- a/src/share/ob_tablet_replica_checksum_operator.cpp
+++ b/src/share/ob_tablet_replica_checksum_operator.cpp
@@ -879,14 +879,12 @@ int ObTabletReplicaChecksumOperator::check_column_checksum(
     if (is_global_index) {
       if (OB_FAIL(check_global_index_column_checksum(tenant_id, data_table_schema, index_table_schema,
           global_snapshot_version, sql_proxy))) {
-        LOG_WARN("fail to check global index column checksum", KR(ret), K(data_table_schema), 
-          K(index_table_schema), K(global_snapshot_version));
+        LOG_WARN("fail to check global index column checksum", KR(ret), K(tenant_id), K(global_snapshot_version));
       }
     } else {
       if (OB_FAIL(check_local_index_column_checksum(tenant_id, data_table_schema, index_table_schema,
           global_snapshot_version, sql_proxy))) {
-        LOG_WARN("fail to check local index column checksum", KR(ret), K(data_table_schema), 
-          K(index_table_schema), K(global_snapshot_version));
+        LOG_WARN("fail to check local index column checksum", KR(ret), K(tenant_id), K(global_snapshot_version));
       }
     }
   }