diff --git a/source/libs/sync/inc/syncMessage.h b/source/libs/sync/inc/syncMessage.h
index 902a6cbe1dbea5ffb028e6c0db7c7f39d214ae93..a3b7517bdcbb4e9a6cf96fde50aae6001194e497 100644
--- a/source/libs/sync/inc/syncMessage.h
+++ b/source/libs/sync/inc/syncMessage.h
@@ -60,17 +60,27 @@ typedef struct SyncTimeout {
   ESyncTimeoutType timeoutType;
   uint64_t         logicClock;
   int32_t          timerMS;
-  void*            data;
+  void*            data;  // need optimized
 } SyncTimeout;
 
 SyncTimeout* syncTimeoutBuild();
+SyncTimeout* syncTimeoutBuild2(ESyncTimeoutType timeoutType, uint64_t logicClock, int32_t timerMS, void* data);
 void         syncTimeoutDestroy(SyncTimeout* pMsg);
 void         syncTimeoutSerialize(const SyncTimeout* pMsg, char* buf, uint32_t bufLen);
 void         syncTimeoutDeserialize(const char* buf, uint32_t len, SyncTimeout* pMsg);
+char*        syncTimeoutSerialize2(const SyncTimeout* pMsg, uint32_t* len);  //
+SyncTimeout* syncTimeoutDeserialize2(const char* buf, uint32_t len);         //
 void         syncTimeout2RpcMsg(const SyncTimeout* pMsg, SRpcMsg* pRpcMsg);
 void         syncTimeoutFromRpcMsg(const SRpcMsg* pRpcMsg, SyncTimeout* pMsg);
+SyncTimeout* syncTimeoutFromRpcMsg2(const SRpcMsg* pRpcMsg);  //
 cJSON*       syncTimeout2Json(const SyncTimeout* pMsg);
-SyncTimeout* syncTimeoutBuild2(ESyncTimeoutType timeoutType, uint64_t logicClock, int32_t timerMS, void* data);
+char*        syncTimeout2Str(const SyncTimeout* pMsg);  //
+
+// for debug ----------------------
+void syncTimeoutPrint(const SyncTimeout* pMsg);
+void syncTimeoutPrint2(char* s, const SyncTimeout* pMsg);
+void syncTimeoutLog(const SyncTimeout* pMsg);
+void syncTimeoutLog2(char* s, const SyncTimeout* pMsg);
 
 // ---------------------------------------------
 typedef struct SyncPing {
@@ -129,13 +139,23 @@ typedef struct SyncClientRequest {
 } SyncClientRequest;
 
 SyncClientRequest* syncClientRequestBuild(uint32_t dataLen);
+SyncClientRequest* syncClientRequestBuild2(const SRpcMsg* pOriginalRpcMsg, uint64_t seqNum, bool isWeak);
 void               syncClientRequestDestroy(SyncClientRequest* pMsg);
 void               syncClientRequestSerialize(const SyncClientRequest* pMsg, char* buf, uint32_t bufLen);
 void               syncClientRequestDeserialize(const char* buf, uint32_t len, SyncClientRequest* pMsg);
+char*              syncClientRequestSerialize2(const SyncClientRequest* pMsg, uint32_t* len);
+SyncClientRequest* syncClientRequestDeserialize2(const char* buf, uint32_t len);
 void               syncClientRequest2RpcMsg(const SyncClientRequest* pMsg, SRpcMsg* pRpcMsg);
 void               syncClientRequestFromRpcMsg(const SRpcMsg* pRpcMsg, SyncClientRequest* pMsg);
+SyncClientRequest* syncClientRequestFromRpcMsg2(const SRpcMsg* pRpcMsg);
 cJSON*             syncClientRequest2Json(const SyncClientRequest* pMsg);
-SyncClientRequest* syncClientRequestBuild2(const SRpcMsg* pOriginalRpcMsg, uint64_t seqNum, bool isWeak);
+char*              syncClientRequest2Str(const SyncClientRequest* pMsg);
+
+// for debug ----------------------
+void syncClientRequestPrint(const SyncClientRequest* pMsg);
+void syncClientRequestPrint2(char* s, const SyncClientRequest* pMsg);
+void syncClientRequestLog(const SyncClientRequest* pMsg);
+void syncClientRequestLog2(char* s, const SyncClientRequest* pMsg);
 
 // ---------------------------------------------
 typedef struct SyncClientRequestReply {
diff --git a/source/libs/sync/src/syncMessage.c b/source/libs/sync/src/syncMessage.c
index 49b3c020abafe41814d4ab2e00268e2c90bc5022..3d5d302559fdd8c20464eccc1f9446d101561bdb 100644
--- a/source/libs/sync/src/syncMessage.c
+++ b/source/libs/sync/src/syncMessage.c
@@ -93,6 +93,15 @@ SyncTimeout* syncTimeoutBuild() {
   return pMsg;
 }
 
+SyncTimeout* syncTimeoutBuild2(ESyncTimeoutType timeoutType, uint64_t logicClock, int32_t timerMS, void* data) {
+  SyncTimeout* pMsg = syncTimeoutBuild();
+  pMsg->timeoutType = timeoutType;
+  pMsg->logicClock = logicClock;
+  pMsg->timerMS = timerMS;
+  pMsg->data = data;
+  return pMsg;
+}
+
 void syncTimeoutDestroy(SyncTimeout* pMsg) {
   if (pMsg != NULL) {
     free(pMsg);
@@ -109,6 +118,25 @@ void syncTimeoutDeserialize(const char* buf, uint32_t len, SyncTimeout* pMsg) {
   assert(len == pMsg->bytes);
 }
 
+char* syncTimeoutSerialize2(const SyncTimeout* pMsg, uint32_t* len) {
+  char* buf = malloc(pMsg->bytes);
+  assert(buf != NULL);
+  syncTimeoutSerialize(pMsg, buf, pMsg->bytes);
+  if (len != NULL) {
+    *len = pMsg->bytes;
+  }
+  return buf;
+}
+
+SyncTimeout* syncTimeoutDeserialize2(const char* buf, uint32_t len) {
+  uint32_t     bytes = *((uint32_t*)buf);
+  SyncTimeout* pMsg = malloc(bytes);
+  assert(pMsg != NULL);
+  syncTimeoutDeserialize(buf, len, pMsg);
+  assert(len == pMsg->bytes);
+  return pMsg;
+}
+
 void syncTimeout2RpcMsg(const SyncTimeout* pMsg, SRpcMsg* pRpcMsg) {
   memset(pRpcMsg, 0, sizeof(*pRpcMsg));
   pRpcMsg->msgType = pMsg->msgType;
@@ -121,6 +149,11 @@ void syncTimeoutFromRpcMsg(const SRpcMsg* pRpcMsg, SyncTimeout* pMsg) {
   syncTimeoutDeserialize(pRpcMsg->pCont, pRpcMsg->contLen, pMsg);
 }
 
+SyncTimeout* syncTimeoutFromRpcMsg2(const SRpcMsg* pRpcMsg) {
+  SyncTimeout* pMsg = syncTimeoutDeserialize2(pRpcMsg->pCont, pRpcMsg->contLen);
+  return pMsg;
+}
+
 cJSON* syncTimeout2Json(const SyncTimeout* pMsg) {
   char u64buf[128];
 
@@ -139,13 +172,38 @@ cJSON* syncTimeout2Json(const SyncTimeout* pMsg) {
   return pJson;
 }
 
-SyncTimeout* syncTimeoutBuild2(ESyncTimeoutType timeoutType, uint64_t logicClock, int32_t timerMS, void* data) {
-  SyncTimeout* pMsg = syncTimeoutBuild();
-  pMsg->timeoutType = timeoutType;
-  pMsg->logicClock = logicClock;
-  pMsg->timerMS = timerMS;
-  pMsg->data = data;
-  return pMsg;
+char* syncTimeout2Str(const SyncTimeout* pMsg) {
+  cJSON* pJson = syncTimeout2Json(pMsg);
+  char*  serialized = cJSON_Print(pJson);
+  cJSON_Delete(pJson);
+  return serialized;
+}
+
+// for debug ----------------------
+void syncTimeoutPrint(const SyncTimeout* pMsg) {
+  char* serialized = syncTimeout2Str(pMsg);
+  printf("syncTimeoutPrint | len:%lu | %s \n", strlen(serialized), serialized);
+  fflush(NULL);
+  free(serialized);
+}
+
+void syncTimeoutPrint2(char* s, const SyncTimeout* pMsg) {
+  char* serialized = syncTimeout2Str(pMsg);
+  printf("syncTimeoutPrint2 | len:%lu | %s | %s \n", strlen(serialized), s, serialized);
+  fflush(NULL);
+  free(serialized);
+}
+
+void syncTimeoutLog(const SyncTimeout* pMsg) {
+  char* serialized = syncTimeout2Str(pMsg);
+  sTrace("syncTimeoutLog | len:%lu | %s", strlen(serialized), serialized);
+  free(serialized);
+}
+
+void syncTimeoutLog2(char* s, const SyncTimeout* pMsg) {
+  char* serialized = syncTimeout2Str(pMsg);
+  sTrace("syncTimeoutLog2 | len:%lu | %s | %s", strlen(serialized), s, serialized);
+  free(serialized);
 }
 
 // ---- message process SyncPing----
@@ -359,6 +417,15 @@ SyncClientRequest* syncClientRequestBuild(uint32_t dataLen) {
   return pMsg;
 }
 
+SyncClientRequest* syncClientRequestBuild2(const SRpcMsg* pOriginalRpcMsg, uint64_t seqNum, bool isWeak) {
+  SyncClientRequest* pMsg = syncClientRequestBuild(pOriginalRpcMsg->contLen);
+  pMsg->originalRpcType = pOriginalRpcMsg->msgType;
+  pMsg->seqNum = seqNum;
+  pMsg->isWeak = isWeak;
+  memcpy(pMsg->data, pOriginalRpcMsg->pCont, pOriginalRpcMsg->contLen);
+  return pMsg;
+}
+
 void syncClientRequestDestroy(SyncClientRequest* pMsg) {
   if (pMsg != NULL) {
     free(pMsg);
@@ -375,6 +442,25 @@ void syncClientRequestDeserialize(const char* buf, uint32_t len, SyncClientReque
   assert(len == pMsg->bytes);
 }
 
+char* syncClientRequestSerialize2(const SyncClientRequest* pMsg, uint32_t* len) {
+  char* buf = malloc(pMsg->bytes);
+  assert(buf != NULL);
+  syncClientRequestSerialize(pMsg, buf, pMsg->bytes);
+  if (len != NULL) {
+    *len = pMsg->bytes;
+  }
+  return buf;
+}
+
+SyncClientRequest* syncClientRequestDeserialize2(const char* buf, uint32_t len) {
+  uint32_t           bytes = *((uint32_t*)buf);
+  SyncClientRequest* pMsg = malloc(bytes);
+  assert(pMsg != NULL);
+  syncClientRequestDeserialize(buf, len, pMsg);
+  assert(len == pMsg->bytes);
+  return pMsg;
+}
+
 void syncClientRequest2RpcMsg(const SyncClientRequest* pMsg, SRpcMsg* pRpcMsg) {
   memset(pRpcMsg, 0, sizeof(*pRpcMsg));
   pRpcMsg->msgType = pMsg->msgType;
@@ -387,6 +473,11 @@ void syncClientRequestFromRpcMsg(const SRpcMsg* pRpcMsg, SyncClientRequest* pMsg
   syncClientRequestDeserialize(pRpcMsg->pCont, pRpcMsg->contLen, pMsg);
 }
 
+SyncClientRequest* syncClientRequestFromRpcMsg2(const SRpcMsg* pRpcMsg) {
+  SyncClientRequest* pMsg = syncClientRequestDeserialize2(pRpcMsg->pCont, pRpcMsg->contLen);
+  return pMsg;
+}
+
 cJSON* syncClientRequest2Json(const SyncClientRequest* pMsg) {
   char u64buf[128];
 
@@ -399,18 +490,51 @@ cJSON* syncClientRequest2Json(const SyncClientRequest* pMsg) {
   cJSON_AddNumberToObject(pRoot, "isWeak", pMsg->isWeak);
   cJSON_AddNumberToObject(pRoot, "dataLen", pMsg->dataLen);
 
+  char* s;
+  s = syncUtilprintBin((char*)(pMsg->data), pMsg->dataLen);
+  cJSON_AddStringToObject(pRoot, "data", s);
+  free(s);
+  s = syncUtilprintBin2((char*)(pMsg->data), pMsg->dataLen);
+  cJSON_AddStringToObject(pRoot, "data2", s);
+  free(s);
+
   cJSON* pJson = cJSON_CreateObject();
   cJSON_AddItemToObject(pJson, "SyncClientRequest", pRoot);
   return pJson;
 }
 
-SyncClientRequest* syncClientRequestBuild2(const SRpcMsg* pOriginalRpcMsg, uint64_t seqNum, bool isWeak) {
-  SyncClientRequest* pMsg = syncClientRequestBuild(pOriginalRpcMsg->contLen);
-  pMsg->originalRpcType = pOriginalRpcMsg->msgType;
-  pMsg->seqNum = seqNum;
-  pMsg->isWeak = isWeak;
-  memcpy(pMsg->data, pOriginalRpcMsg->pCont, pOriginalRpcMsg->contLen);
-  return pMsg;
+char* syncClientRequest2Str(const SyncClientRequest* pMsg) {
+  cJSON* pJson = syncClientRequest2Json(pMsg);
+  char*  serialized = cJSON_Print(pJson);
+  cJSON_Delete(pJson);
+  return serialized;
+}
+
+// for debug ----------------------
+void syncClientRequestPrint(const SyncClientRequest* pMsg) {
+  char* serialized = syncClientRequest2Str(pMsg);
+  printf("syncClientRequestPrint | len:%lu | %s \n", strlen(serialized), serialized);
+  fflush(NULL);
+  free(serialized);
+}
+
+void syncClientRequestPrint2(char* s, const SyncClientRequest* pMsg) {
+  char* serialized = syncClientRequest2Str(pMsg);
+  printf("syncClientRequestPrint2 | len:%lu | %s | %s \n", strlen(serialized), s, serialized);
+  fflush(NULL);
+  free(serialized);
+}
+
+void syncClientRequestLog(const SyncClientRequest* pMsg) {
+  char* serialized = syncClientRequest2Str(pMsg);
+  sTrace("syncClientRequestLog | len:%lu | %s", strlen(serialized), serialized);
+  free(serialized);
+}
+
+void syncClientRequestLog2(char* s, const SyncClientRequest* pMsg) {
+  char* serialized = syncClientRequest2Str(pMsg);
+  sTrace("syncClientRequestLog2 | len:%lu | %s | %s", strlen(serialized), s, serialized);
+  free(serialized);
 }
 
 // ---- message process SyncRequestVote----
diff --git a/source/libs/sync/test/CMakeLists.txt b/source/libs/sync/test/CMakeLists.txt
index 8d25c357a30b750d0aba50b711371a6b75c52c4e..2ed4799467ef08ef30eca3096df4fe0f2de3b289 100644
--- a/source/libs/sync/test/CMakeLists.txt
+++ b/source/libs/sync/test/CMakeLists.txt
@@ -21,6 +21,8 @@ add_executable(syncRequestVoteTest "")
 add_executable(syncRequestVoteReplyTest "")
 add_executable(syncAppendEntriesTest "")
 add_executable(syncAppendEntriesReplyTest "")
+add_executable(syncClientRequestTest "")
+add_executable(syncTimeoutTest "")
 
 
 target_sources(syncTest
@@ -115,6 +117,14 @@ target_sources(syncAppendEntriesReplyTest
     PRIVATE
     "syncAppendEntriesReplyTest.cpp"
 )
+target_sources(syncClientRequestTest
+    PRIVATE
+    "syncClientRequestTest.cpp"
+)
+target_sources(syncTimeoutTest
+    PRIVATE
+    "syncTimeoutTest.cpp"
+)
 
 
 target_include_directories(syncTest
@@ -232,6 +242,16 @@ target_include_directories(syncAppendEntriesReplyTest
     "${CMAKE_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
+target_include_directories(syncClientRequestTest
+    PUBLIC
+    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
+)
+target_include_directories(syncTimeoutTest
+    PUBLIC
+    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
+)
 
 
 target_link_libraries(syncTest
@@ -326,6 +346,14 @@ target_link_libraries(syncAppendEntriesReplyTest
     sync
     gtest_main
 )
+target_link_libraries(syncClientRequestTest
+    sync
+    gtest_main
+)
+target_link_libraries(syncTimeoutTest
+    sync
+    gtest_main
+)
 
 
 enable_testing()
diff --git a/source/libs/sync/test/syncAppendEntriesReplyTest.cpp b/source/libs/sync/test/syncAppendEntriesReplyTest.cpp
index c802350ae59082cebad7b7e183e6211079c766cd..c883ab941acaa518d31c05a146226d180a76d261 100644
--- a/source/libs/sync/test/syncAppendEntriesReplyTest.cpp
+++ b/source/libs/sync/test/syncAppendEntriesReplyTest.cpp
@@ -32,12 +32,13 @@ void test1() {
 
 void test2() {
   SyncAppendEntriesReply *pMsg = createMsg();
-  uint32_t              len = pMsg->bytes;
-  char *                serialized = (char *)malloc(len);
+  uint32_t                len = pMsg->bytes;
+  char *                  serialized = (char *)malloc(len);
   syncAppendEntriesReplySerialize(pMsg, serialized, len);
   SyncAppendEntriesReply *pMsg2 = syncAppendEntriesReplyBuild();
   syncAppendEntriesReplyDeserialize(serialized, len, pMsg2);
-  syncAppendEntriesReplyPrint2((char *)"test2: syncAppendEntriesReplySerialize -> syncAppendEntriesReplyDeserialize ", pMsg2);
+  syncAppendEntriesReplyPrint2((char *)"test2: syncAppendEntriesReplySerialize -> syncAppendEntriesReplyDeserialize ",
+                               pMsg2);
 
   free(serialized);
   syncAppendEntriesReplyDestroy(pMsg);
@@ -46,11 +47,11 @@ void test2() {
 
 void test3() {
   SyncAppendEntriesReply *pMsg = createMsg();
-  uint32_t              len;
-  char *                serialized = syncAppendEntriesReplySerialize2(pMsg, &len);
+  uint32_t                len;
+  char *                  serialized = syncAppendEntriesReplySerialize2(pMsg, &len);
   SyncAppendEntriesReply *pMsg2 = syncAppendEntriesReplyDeserialize2(serialized, len);
   syncAppendEntriesReplyPrint2((char *)"test3: syncAppendEntriesReplySerialize3 -> syncAppendEntriesReplyDeserialize2 ",
-                             pMsg2);
+                               pMsg2);
 
   free(serialized);
   syncAppendEntriesReplyDestroy(pMsg);
@@ -59,11 +60,12 @@ void test3() {
 
 void test4() {
   SyncAppendEntriesReply *pMsg = createMsg();
-  SRpcMsg               rpcMsg;
+  SRpcMsg                 rpcMsg;
   syncAppendEntriesReply2RpcMsg(pMsg, &rpcMsg);
   SyncAppendEntriesReply *pMsg2 = syncAppendEntriesReplyBuild();
   syncAppendEntriesReplyFromRpcMsg(&rpcMsg, pMsg2);
-  syncAppendEntriesReplyPrint2((char *)"test4: syncAppendEntriesReply2RpcMsg -> syncAppendEntriesReplyFromRpcMsg ", pMsg2);
+  syncAppendEntriesReplyPrint2((char *)"test4: syncAppendEntriesReply2RpcMsg -> syncAppendEntriesReplyFromRpcMsg ",
+                               pMsg2);
 
   syncAppendEntriesReplyDestroy(pMsg);
   syncAppendEntriesReplyDestroy(pMsg2);
@@ -71,10 +73,11 @@ void test4() {
 
 void test5() {
   SyncAppendEntriesReply *pMsg = createMsg();
-  SRpcMsg               rpcMsg;
+  SRpcMsg                 rpcMsg;
   syncAppendEntriesReply2RpcMsg(pMsg, &rpcMsg);
   SyncAppendEntriesReply *pMsg2 = syncAppendEntriesReplyFromRpcMsg2(&rpcMsg);
-  syncAppendEntriesReplyPrint2((char *)"test5: syncAppendEntriesReply2RpcMsg -> syncAppendEntriesReplyFromRpcMsg2 ", pMsg2);
+  syncAppendEntriesReplyPrint2((char *)"test5: syncAppendEntriesReply2RpcMsg -> syncAppendEntriesReplyFromRpcMsg2 ",
+                               pMsg2);
 
   syncAppendEntriesReplyDestroy(pMsg);
   syncAppendEntriesReplyDestroy(pMsg2);
diff --git a/source/libs/sync/test/syncClientRequestTest.cpp b/source/libs/sync/test/syncClientRequestTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..311a7e5fa36663eecff312ec55de3a583df48082
--- /dev/null
+++ b/source/libs/sync/test/syncClientRequestTest.cpp
@@ -0,0 +1,96 @@
+#include <gtest/gtest.h>
+#include <stdio.h>
+#include "syncIO.h"
+#include "syncInt.h"
+#include "syncMessage.h"
+#include "syncUtil.h"
+
+void logTest() {
+  sTrace("--- sync log test: trace");
+  sDebug("--- sync log test: debug");
+  sInfo("--- sync log test: info");
+  sWarn("--- sync log test: warn");
+  sError("--- sync log test: error");
+  sFatal("--- sync log test: fatal");
+}
+
+SyncClientRequest *createMsg() {
+  SRpcMsg rpcMsg;
+  memset(&rpcMsg, 0, sizeof(rpcMsg));
+  rpcMsg.msgType = 12345;
+  rpcMsg.contLen = 20;
+  rpcMsg.pCont = rpcMallocCont(rpcMsg.contLen);
+  strcpy((char*)rpcMsg.pCont, "hello rpc");
+  SyncClientRequest *pMsg = syncClientRequestBuild2(&rpcMsg, 123, true);
+  return pMsg;
+}
+
+void test1() {
+  SyncClientRequest *pMsg = createMsg();
+  syncClientRequestPrint2((char *)"test1:", pMsg);
+  syncClientRequestDestroy(pMsg);
+}
+
+void test2() {
+  SyncClientRequest *pMsg = createMsg();
+  uint32_t           len = pMsg->bytes;
+  char *             serialized = (char *)malloc(len);
+  syncClientRequestSerialize(pMsg, serialized, len);
+  SyncClientRequest *pMsg2 = syncClientRequestBuild(pMsg2->dataLen);
+  syncClientRequestDeserialize(serialized, len, pMsg2);
+  syncClientRequestPrint2((char *)"test2: syncClientRequestSerialize -> syncClientRequestDeserialize ", pMsg2);
+
+  free(serialized);
+  syncClientRequestDestroy(pMsg);
+  syncClientRequestDestroy(pMsg2);
+}
+
+void test3() {
+  SyncClientRequest *pMsg = createMsg();
+  uint32_t           len;
+  char *             serialized = syncClientRequestSerialize2(pMsg, &len);
+  SyncClientRequest *pMsg2 = syncClientRequestDeserialize2(serialized, len);
+  syncClientRequestPrint2((char *)"test3: syncClientRequestSerialize3 -> syncClientRequestDeserialize2 ", pMsg2);
+
+  free(serialized);
+  syncClientRequestDestroy(pMsg);
+  syncClientRequestDestroy(pMsg2);
+}
+
+void test4() {
+  SyncClientRequest *pMsg = createMsg();
+  SRpcMsg            rpcMsg;
+  syncClientRequest2RpcMsg(pMsg, &rpcMsg);
+  SyncClientRequest *pMsg2 = (SyncClientRequest *)malloc(rpcMsg.contLen);
+  syncClientRequestFromRpcMsg(&rpcMsg, pMsg2);
+  syncClientRequestPrint2((char *)"test4: syncClientRequest2RpcMsg -> syncClientRequestFromRpcMsg ", pMsg2);
+
+  syncClientRequestDestroy(pMsg);
+  syncClientRequestDestroy(pMsg2);
+}
+
+void test5() {
+  SyncClientRequest *pMsg = createMsg();
+  SRpcMsg            rpcMsg;
+  syncClientRequest2RpcMsg(pMsg, &rpcMsg);
+  SyncClientRequest *pMsg2 = syncClientRequestFromRpcMsg2(&rpcMsg);
+  syncClientRequestPrint2((char *)"test5: syncClientRequest2RpcMsg -> syncClientRequestFromRpcMsg2 ", pMsg2);
+
+  syncClientRequestDestroy(pMsg);
+  syncClientRequestDestroy(pMsg2);
+}
+
+int main() {
+  // taosInitLog((char *)"syncTest.log", 100000, 10);
+  tsAsyncLog = 0;
+  sDebugFlag = 143 + 64;
+  logTest();
+
+  test1();
+  test2();
+  test3();
+  test4();
+  test5();
+
+  return 0;
+}
diff --git a/source/libs/sync/test/syncTimeoutTest.cpp b/source/libs/sync/test/syncTimeoutTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..4d2da97a000e5165b6a20d59e14134f18d8ba30d
--- /dev/null
+++ b/source/libs/sync/test/syncTimeoutTest.cpp
@@ -0,0 +1,92 @@
+#include <gtest/gtest.h>
+#include <stdio.h>
+#include "syncIO.h"
+#include "syncInt.h"
+#include "syncMessage.h"
+#include "syncUtil.h"
+
+void logTest() {
+  sTrace("--- sync log test: trace");
+  sDebug("--- sync log test: debug");
+  sInfo("--- sync log test: info");
+  sWarn("--- sync log test: warn");
+  sError("--- sync log test: error");
+  sFatal("--- sync log test: fatal");
+}
+
+int gg = 0;
+
+SyncTimeout *createMsg() {
+  SyncTimeout *pMsg = syncTimeoutBuild2(SYNC_TIMEOUT_PING, 999, 333, &gg);
+  return pMsg;
+}
+
+void test1() {
+  SyncTimeout *pMsg = createMsg();
+  syncTimeoutPrint2((char *)"test1:", pMsg);
+  syncTimeoutDestroy(pMsg);
+}
+
+void test2() {
+  SyncTimeout *pMsg = createMsg();
+  uint32_t           len = pMsg->bytes;
+  char *             serialized = (char *)malloc(len);
+  syncTimeoutSerialize(pMsg, serialized, len);
+  SyncTimeout *pMsg2 = syncTimeoutBuild();
+  syncTimeoutDeserialize(serialized, len, pMsg2);
+  syncTimeoutPrint2((char *)"test2: syncTimeoutSerialize -> syncTimeoutDeserialize ", pMsg2);
+
+  free(serialized);
+  syncTimeoutDestroy(pMsg);
+  syncTimeoutDestroy(pMsg2);
+}
+
+void test3() {
+  SyncTimeout *pMsg = createMsg();
+  uint32_t           len;
+  char *             serialized = syncTimeoutSerialize2(pMsg, &len);
+  SyncTimeout *pMsg2 = syncTimeoutDeserialize2(serialized, len);
+  syncTimeoutPrint2((char *)"test3: syncTimeoutSerialize3 -> syncTimeoutDeserialize2 ", pMsg2);
+
+  free(serialized);
+  syncTimeoutDestroy(pMsg);
+  syncTimeoutDestroy(pMsg2);
+}
+
+void test4() {
+  SyncTimeout *pMsg = createMsg();
+  SRpcMsg            rpcMsg;
+  syncTimeout2RpcMsg(pMsg, &rpcMsg);
+  SyncTimeout *pMsg2 = (SyncTimeout *)malloc(rpcMsg.contLen);
+  syncTimeoutFromRpcMsg(&rpcMsg, pMsg2);
+  syncTimeoutPrint2((char *)"test4: syncTimeout2RpcMsg -> syncTimeoutFromRpcMsg ", pMsg2);
+
+  syncTimeoutDestroy(pMsg);
+  syncTimeoutDestroy(pMsg2);
+}
+
+void test5() {
+  SyncTimeout *pMsg = createMsg();
+  SRpcMsg            rpcMsg;
+  syncTimeout2RpcMsg(pMsg, &rpcMsg);
+  SyncTimeout *pMsg2 = syncTimeoutFromRpcMsg2(&rpcMsg);
+  syncTimeoutPrint2((char *)"test5: syncTimeout2RpcMsg -> syncTimeoutFromRpcMsg2 ", pMsg2);
+
+  syncTimeoutDestroy(pMsg);
+  syncTimeoutDestroy(pMsg2);
+}
+
+int main() {
+  // taosInitLog((char *)"syncTest.log", 100000, 10);
+  tsAsyncLog = 0;
+  sDebugFlag = 143 + 64;
+  logTest();
+
+  test1();
+  test2();
+  test3();
+  test4();
+  test5();
+
+  return 0;
+}