diff --git a/src/storage/transaction/ob_trans_sche_ctx.h b/src/storage/transaction/ob_trans_sche_ctx.h
index 07de9145c4..66143cff24 100644
--- a/src/storage/transaction/ob_trans_sche_ctx.h
+++ b/src/storage/transaction/ob_trans_sche_ctx.h
@@ -35,6 +35,8 @@ typedef common::ObList<common::ObPartitionKey, ObArenaAllocator> ObPartitionList
 
 struct ObXABranchInfo {
   ObXABranchInfo()
+      : xid_(), state_(ObXATransState::UNKNOWN), timeout_seconds_(-1), abs_expired_time_(-1),
+        addr_(), unrespond_msg_cnt_(-1), last_hb_ts_(-1)
   {}
   virtual ~ObXABranchInfo()
   {}
diff --git a/src/storage/transaction/ob_xa_rpc.h b/src/storage/transaction/ob_xa_rpc.h
index 40fa5b8bcd..7ece2af7f7 100644
--- a/src/storage/transaction/ob_xa_rpc.h
+++ b/src/storage/transaction/ob_xa_rpc.h
@@ -35,6 +35,7 @@ class ObXAPrepareRPCRequest {
 
 public:
   ObXAPrepareRPCRequest()
+      : trans_id_(), xid_(), stmt_timeout_(-1)
   {}
   ~ObXAPrepareRPCRequest()
   {}
@@ -68,6 +69,7 @@ class ObXAEndTransRPCRequest {
 
 public:
   ObXAEndTransRPCRequest()
+      : trans_id_(), xid_(), is_rollback_(false), is_terminated_(false)
   {}
   ~ObXAEndTransRPCRequest()
   {}
@@ -112,6 +114,8 @@ class ObXASyncStatusRPCRequest {
 
 public:
   ObXASyncStatusRPCRequest()
+      : trans_id_(), xid_(), sender_(), is_new_branch_(false), is_stmt_pull_(false), is_tightly_coupled_(false),
+        pull_trans_desc_(false), timeout_seconds_(-1)
   {}
   ~ObXASyncStatusRPCRequest()
   {}
@@ -177,6 +181,7 @@ class ObXASyncStatusRPCResponse {
 
 public:
   ObXASyncStatusRPCResponse()
+      : trans_desc_(), is_stmt_pull_(false)
   {}
   ~ObXASyncStatusRPCResponse()
   {}
@@ -205,6 +210,7 @@ class ObXAMergeStatusRPCRequest {
 
 public:
   ObXAMergeStatusRPCRequest()
+      : trans_desc_(), is_stmt_push_(false), is_tightly_coupled_(false), xid_(), seq_no_(-1)
   {}
   ~ObXAMergeStatusRPCRequest()
   {}
@@ -249,6 +255,7 @@ class ObXAHbRequest {
 
 public:
   ObXAHbRequest()
+      : trans_id_(), xid_(), sender_()
   {}
   ~ObXAHbRequest()
   {}
diff --git a/src/storage/transaction/ob_xa_trans_heartbeat_worker.h b/src/storage/transaction/ob_xa_trans_heartbeat_worker.h
index b59df89fe2..bf534b97d1 100644
--- a/src/storage/transaction/ob_xa_trans_heartbeat_worker.h
+++ b/src/storage/transaction/ob_xa_trans_heartbeat_worker.h
@@ -22,7 +22,7 @@ class ObTransService;
 
 class ObXATransHeartbeatWorker : public share::ObThreadPool {
 public:
-  ObXATransHeartbeatWorker() : is_inited_(false), is_running_(false)
+  ObXATransHeartbeatWorker() : is_inited_(false), is_running_(false), trans_service_(NULL)
   {}
   ~ObXATransHeartbeatWorker()
   {
diff --git a/src/storage/transaction/ob_xa_trans_service.cpp b/src/storage/transaction/ob_xa_trans_service.cpp
index e3843b4bbd..4cbf1a2b78 100644
--- a/src/storage/transaction/ob_xa_trans_service.cpp
+++ b/src/storage/transaction/ob_xa_trans_service.cpp
@@ -2444,7 +2444,6 @@ int ObTransService::insert_xa_lock(
   char trans_id_buf[512];
   trans_id.to_string(trans_id_buf, 512);
   char scheduler_ip_buf[128];
-  self_.ip_to_string(scheduler_ip_buf, 128);
   char gtrid_str[128];
   int64_t gtrid_len = 0;
   char bqual_str[128];
@@ -2455,6 +2454,9 @@ int ObTransService::insert_xa_lock(
   if (!is_valid_tenant_id(tenant_id) || xid.empty() || !trans_id.is_valid()) {
     ret = OB_INVALID_ARGUMENT;
     TRANS_LOG(WARN, "invalid argument", K(ret), K(tenant_id), K(xid), K(trans_id));
+  } else if (!self_.ip_to_string(scheduler_ip_buf, 128)) {
+    ret = OB_ERR_UNEXPECTED;
+    TRANS_LOG(WARN, "fail to get string of self address", K(ret), K_(self));
   } else if (OB_FAIL(hex_print(xid.get_gtrid_str().ptr(), xid.get_gtrid_str().length(), gtrid_str, 128, gtrid_len))) {
     TRANS_LOG(WARN, "fail to convert gtrid to hex", K(ret), K(tenant_id), K(xid));
   } else if (OB_FAIL(sql.assign_fmt(INSERT_XA_LOCK_SQL,
@@ -2508,7 +2510,6 @@ int ObTransService::insert_xa_record(const uint64_t tenant_id, const ObXATransID
   char trans_id_buf[512];
   trans_id.to_string(trans_id_buf, 512);
   char scheduler_ip_buf[128];
-  sche_addr.ip_to_string(scheduler_ip_buf, 128);
   char gtrid_str[128];
   int64_t gtrid_len = 0;
   char bqual_str[128];
@@ -2519,6 +2520,9 @@ int ObTransService::insert_xa_record(const uint64_t tenant_id, const ObXATransID
   if (!is_valid_tenant_id(tenant_id) || xid.empty() || !trans_id.is_valid()) {
     ret = OB_INVALID_ARGUMENT;
     TRANS_LOG(WARN, "invalid argument", K(ret), K(tenant_id), K(xid), K(trans_id));
+  } else if (!self_.ip_to_string(scheduler_ip_buf, 128)) {
+    ret = OB_ERR_UNEXPECTED;
+    TRANS_LOG(WARN, "fail to get string of self address", K(ret), K_(self));
   } else if (OB_FAIL(hex_print(xid.get_gtrid_str().ptr(), xid.get_gtrid_str().length(), gtrid_str, 128, gtrid_len))) {
     TRANS_LOG(WARN, "fail to convert gtrid to hex", K(ret), K(tenant_id), K(xid));
   } else if (OB_FAIL(hex_print(xid.get_bqual_str().ptr(), xid.get_bqual_str().length(), bqual_str, 128, bqual_len))) {