diff --git a/include/dnode/vnode/tq/tq.h b/include/dnode/vnode/tq/tq.h
index b8bfd72efa41f00a6b97275f9353b3321dd85470..60a8c252c0b511e145e611814827626a48ed86bd 100644
--- a/include/dnode/vnode/tq/tq.h
+++ b/include/dnode/vnode/tq/tq.h
@@ -16,8 +16,11 @@
 #ifndef _TD_TQ_H_
 #define _TD_TQ_H_
 
+#include "common.h"
 #include "mallocator.h"
 #include "os.h"
+#include "taoserror.h"
+#include "taosmsg.h"
 #include "tlist.h"
 #include "tutil.h"
 
@@ -97,10 +100,9 @@ typedef struct STqTopicVhandle {
 
 typedef struct STqExec {
   void* runtimeEnv;
-  // return type will be SSDataBlock
-  void* (*exec)(void* runtimeEnv);
-  // inputData type will be submitblk
-  void* (*assign)(void* runtimeEnv, void* inputData);
+  SSDataBlock* (*exec)(void* runtimeEnv);
+  void* (*assign)(void* runtimeEnv, SSubmitBlk* inputData);
+  void (*clear)(void* runtimeEnv);
   char* (*serialize)(struct STqExec*);
   struct STqExec* (*deserialize)(char*);
 } STqExec;
@@ -133,22 +135,17 @@ typedef struct STqListHandle {
 } STqList;
 
 typedef struct STqGroup {
-  int64_t  cId;
+  int64_t  clientId;
   int64_t  cgId;
   void*    ahandle;
   int32_t  topicNum;
   STqList* head;
   SList*   topicList;  // SList<STqTopic>
+  void*    returnMsg;  // SVReadMsg
 } STqGroup;
 
-typedef struct STqQueryExec {
-  void*       src;
-  STqMsgItem* dest;
-  void*       executor;
-} STqQueryExec;
-
 typedef struct STqQueryMsg {
-  STqQueryExec*       exec;
+  STqMsgItem*         item;
   struct STqQueryMsg* next;
 } STqQueryMsg;
 
@@ -258,12 +255,10 @@ typedef struct STQ {
   STqLogReader* tqLogReader;
   STqMemRef     tqMemRef;
   STqMetaStore* tqMeta;
-  STqExec*      tqExec;
 } STQ;
 
 // open in each vnode
-STQ* tqOpen(const char* path, STqCfg* tqConfig, STqLogReader* tqLogReader, SMemAllocatorFactory* allocFac,
-            STqExec* tqExec);
+STQ* tqOpen(const char* path, STqCfg* tqConfig, STqLogReader* tqLogReader, SMemAllocatorFactory* allocFac);
 void tqClose(STQ*);
 
 // void* will be replace by a msg type
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 4f1ef7da7b6fa0a93fdb2d3cb20bf9f45c57ae91..f15e4c1c975996926b8995f767c3ca45b351b2ba 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -353,6 +353,20 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_SYN_INVALID_MSGLEN            TAOS_DEF_ERROR_CODE(0, 0x0909)  //"Invalid msg length")
 #define TSDB_CODE_SYN_INVALID_MSGTYPE           TAOS_DEF_ERROR_CODE(0, 0x090A)  //"Invalid msg type")
 
+// tq
+#define TSDB_CODE_TQ_INVALID_CONFIG             TAOS_DEF_ERROR_CODE(0, 0x0A00)  //"Invalid configuration")
+#define TSDB_CODE_TQ_INIT_FAILED                TAOS_DEF_ERROR_CODE(0, 0x0A01)  //"Tq init failed")
+#define TSDB_CODE_TQ_NO_DISKSPACE               TAOS_DEF_ERROR_CODE(0, 0x0A02)  //"No diskspace for tq")
+#define TSDB_CODE_TQ_NO_DISK_PERMISSIONS        TAOS_DEF_ERROR_CODE(0, 0x0A03)  //"No permission for disk files")
+#define TSDB_CODE_TQ_FILE_CORRUPTED             TAOS_DEF_ERROR_CODE(0, 0x0A04)  //"Data file(s) corrupted")
+#define TSDB_CODE_TQ_OUT_OF_MEMORY              TAOS_DEF_ERROR_CODE(0, 0x0A05)  //"Out of memory")
+#define TSDB_CODE_TQ_FILE_ALREADY_EXISTS        TAOS_DEF_ERROR_CODE(0, 0x0A06)  //"File already exists")
+#define TSDB_CODE_TQ_FAILED_TO_CREATE_DIR       TAOS_DEF_ERROR_CODE(0, 0x0A07)  //"Failed to create dir")
+#define TSDB_CODE_TQ_META_NO_SUCH_KEY           TAOS_DEF_ERROR_CODE(0, 0x0A08)  //"Target key not found")
+#define TSDB_CODE_TQ_META_KEY_NOT_IN_TXN        TAOS_DEF_ERROR_CODE(0, 0x0A09)  //"Target key not in transaction")
+#define TSDB_CODE_TQ_META_KEY_DUP_IN_TXN        TAOS_DEF_ERROR_CODE(0, 0x0A0A)  //"Target key duplicated in transaction")
+#define TSDB_CODE_TQ_GROUP_NOT_SET              TAOS_DEF_ERROR_CODE(0, 0x0A0B)  //"Group of corresponding client is not set by mnode")
+
 // wal
 #define TSDB_CODE_WAL_APP_ERROR                 TAOS_DEF_ERROR_CODE(0, 0x1000)  //"Unexpected generic error in wal")
 #define TSDB_CODE_WAL_FILE_CORRUPTED            TAOS_DEF_ERROR_CODE(0, 0x1001)  //"WAL file is corrupted")
diff --git a/include/util/tlog.h b/include/util/tlog.h
index 5e6604598dd22ad7755e4af51921fa3ee80a6abe..5c91398cdcf952046406d55e15911109a4c66435 100644
--- a/include/util/tlog.h
+++ b/include/util/tlog.h
@@ -42,11 +42,11 @@ extern int32_t qDebugFlag;
 extern int32_t wDebugFlag;
 extern int32_t sDebugFlag;
 extern int32_t tsdbDebugFlag;
+extern int32_t tqDebugFlag;
 extern int32_t cqDebugFlag;
 extern int32_t debugFlag;
 extern int32_t ctgDebugFlag;
 
-
 #define DEBUG_FATAL 1U
 #define DEBUG_ERROR DEBUG_FATAL
 #define DEBUG_WARN 2U
diff --git a/source/dnode/vnode/tq/CMakeLists.txt b/source/dnode/vnode/tq/CMakeLists.txt
index 536e97d5f79b58442b2d0a6af5758bb4ec854fc1..8d59c7b07a9c3935187ba6b644d7f95f88179776 100644
--- a/source/dnode/vnode/tq/CMakeLists.txt
+++ b/source/dnode/vnode/tq/CMakeLists.txt
@@ -11,6 +11,7 @@ target_link_libraries(
     PUBLIC wal
     PUBLIC os
     PUBLIC util
+    PUBLIC common
 )
 
 if(${BUILD_TEST})
diff --git a/source/dnode/vnode/tq/inc/tqInt.h b/source/dnode/vnode/tq/inc/tqInt.h
index 022b5998162b907382643d1e01a8cf0b05596696..5685a29d03e7dc15a974d9728d0c6ec07d4cceb3 100644
--- a/source/dnode/vnode/tq/inc/tqInt.h
+++ b/source/dnode/vnode/tq/inc/tqInt.h
@@ -17,11 +17,20 @@
 #define _TD_TQ_INT_H_
 
 #include "tq.h"
-
+#include "tlog.h"
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+extern int32_t tqDebugFlag;
+
+#define tqFatal(...) { if (tqDebugFlag & DEBUG_FATAL) { taosPrintLog("TQ  FATAL ", 255, __VA_ARGS__); }}
+#define tqError(...) { if (tqDebugFlag & DEBUG_ERROR) { taosPrintLog("TQ  ERROR ", 255, __VA_ARGS__); }}
+#define tqWarn(...)  { if (tqDebugFlag & DEBUG_WARN)  { taosPrintLog("TQ  WARN ", 255, __VA_ARGS__); }}
+#define tqInfo(...)  { if (tqDebugFlag & DEBUG_INFO)  { taosPrintLog("TQ  ", 255, __VA_ARGS__); }}
+#define tqDebug(...) { if (tqDebugFlag & DEBUG_DEBUG) { taosPrintLog("TQ  ", tqDebugFlag, __VA_ARGS__); }}
+#define tqTrace(...) { if (tqDebugFlag & DEBUG_TRACE) { taosPrintLog("TQ  ", tqDebugFlag, __VA_ARGS__); }}
+
 // create persistent storage for meta info such as consuming offset
 // return value > 0: cgId
 // return value <= 0: error code
diff --git a/source/dnode/vnode/tq/inc/tqMetaStore.h b/source/dnode/vnode/tq/inc/tqMetaStore.h
index 5bcedaed748d7d0668181183d09de7470ff630e2..ef71d8bf145ae535edf7740e864661e576078814 100644
--- a/source/dnode/vnode/tq/inc/tqMetaStore.h
+++ b/source/dnode/vnode/tq/inc/tqMetaStore.h
@@ -17,7 +17,7 @@
 #define _TQ_META_STORE_H_
 
 #include "os.h"
-#include "tq.h"
+#include "tqInt.h"
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/source/dnode/vnode/tq/src/tq.c b/source/dnode/vnode/tq/src/tq.c
index 7beab8a983267b4fb61493cc4a0f5ec90657da79..5c8578fa67608cd813b2208e6e30b81d28b81489 100644
--- a/source/dnode/vnode/tq/src/tq.c
+++ b/source/dnode/vnode/tq/src/tq.c
@@ -35,11 +35,10 @@ void* tqSerializeItem(STqMsgItem* pItem, void* ptr);
 const void* tqDeserializeTopic(const void* pBytes, STqTopic* pTopic);
 const void* tqDeserializeItem(const void* pBytes, STqMsgItem* pItem);
 
-STQ* tqOpen(const char* path, STqCfg* tqConfig, STqLogReader* tqLogReader, SMemAllocatorFactory* allocFac,
-            STqExec* tqExec) {
+STQ* tqOpen(const char* path, STqCfg* tqConfig, STqLogReader* tqLogReader, SMemAllocatorFactory* allocFac) {
   STQ* pTq = malloc(sizeof(STQ));
   if (pTq == NULL) {
-    // TODO: memory error
+    terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
     return NULL;
   }
   pTq->path = strdup(path);
@@ -48,14 +47,13 @@ STQ* tqOpen(const char* path, STqCfg* tqConfig, STqLogReader* tqLogReader, SMemA
   pTq->tqMemRef.pAlloctorFactory = allocFac;
   pTq->tqMemRef.pAllocator = allocFac->create(allocFac);
   if (pTq->tqMemRef.pAllocator == NULL) {
-    // TODO
+    // TODO: error code of buffer pool
   }
   pTq->tqMeta = tqStoreOpen(path, (FTqSerialize)tqSerializeGroup, (FTqDeserialize)tqDeserializeGroup, free, 0);
   if (pTq->tqMeta == NULL) {
     // TODO: free STQ
     return NULL;
   }
-  pTq->tqExec = tqExec;
   return pTq;
 }
 
@@ -70,16 +68,16 @@ static int tqAckOneTopic(STqTopic* pTopic, STqOneAck* pAck, STqQueryMsg** ppQuer
   if (1 /* TODO: need to launch new query */) {
     STqQueryMsg* pNewQuery = malloc(sizeof(STqQueryMsg));
     if (pNewQuery == NULL) {
-      // TODO: memory insufficient
+      terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
       return -1;
     }
     // TODO: lock executor
-    pNewQuery->exec->executor = pTopic->buffer[idx].executor;
     // TODO: read from wal and assign to src
-    pNewQuery->exec->src = 0;
-    pNewQuery->exec->dest = &pTopic->buffer[idx];
-    pNewQuery->next = *ppQuery;
-    *ppQuery = pNewQuery;
+    /*pNewQuery->exec->executor = pTopic->buffer[idx].executor;*/
+    /*pNewQuery->exec->src = 0;*/
+    /*pNewQuery->exec->dest = &pTopic->buffer[idx];*/
+    /*pNewQuery->next = *ppQuery;*/
+    /**ppQuery = pNewQuery;*/
   }
   return 0;
 }
@@ -134,10 +132,10 @@ STqGroup* tqOpenGroup(STQ* pTq, int64_t topicId, int64_t cgId, int64_t cId) {
       // TODO
       return NULL;
     }
+    tqHandleMovePut(pTq->tqMeta, cId, pGroup);
   }
+  ASSERT(pGroup);
 
-  // create
-  // open
   return pGroup;
 }
 
@@ -272,6 +270,33 @@ int tqSetCursor(STQ* pTq, STqSetCurReq* pMsg) {
   return 0;
 }
 
+int tqConsume(STQ* pTq, STqConsumeReq* pMsg) {
+  int64_t   clientId = pMsg->head.clientId;
+  STqGroup* pGroup = tqGetGroup(pTq, clientId);
+  if (pGroup == NULL) {
+    terrno = TSDB_CODE_TQ_GROUP_NOT_SET;
+    return -1;
+  }
+
+  STqConsumeRsp* pRsp = (STqConsumeRsp*)pMsg;
+  int            numOfMsgs = tqFetch(pGroup, (void**)&pRsp->msgs);
+  if (numOfMsgs < 0) {
+    return -1;
+  }
+  if (numOfMsgs == 0) {
+    // most recent data has been fetched
+
+    // enable timer for blocking wait
+    // once new data written during wait time
+    // launch query and response
+  }
+
+  // fetched a num of msgs, rpc response
+
+  return 0;
+}
+
+#if 0
 int tqConsume(STQ* pTq, STqConsumeReq* pMsg) {
   if (!tqProtoCheck((STqMsgHead*)pMsg)) {
     // proto version invalid
@@ -304,6 +329,7 @@ int tqConsume(STQ* pTq, STqConsumeReq* pMsg) {
   /*}*/
   return 0;
 }
+#endif
 
 int tqSerializeGroup(const STqGroup* pGroup, STqSerializedHead** ppHead) {
   // calculate size
@@ -320,7 +346,7 @@ int tqSerializeGroup(const STqGroup* pGroup, STqSerializedHead** ppHead) {
   }
   void* ptr = (*ppHead)->content;
   // do serialization
-  *(int64_t*)ptr = pGroup->cId;
+  *(int64_t*)ptr = pGroup->clientId;
   ptr = POINTER_SHIFT(ptr, sizeof(int64_t));
   *(int64_t*)ptr = pGroup->cgId;
   ptr = POINTER_SHIFT(ptr, sizeof(int64_t));
@@ -366,7 +392,7 @@ void* tqSerializeItem(STqMsgItem* bufItem, void* ptr) {
 const void* tqDeserializeGroup(const STqSerializedHead* pHead, STqGroup** ppGroup) {
   STqGroup*   gHandle = *ppGroup;
   const void* ptr = pHead->content;
-  gHandle->cId = *(int64_t*)ptr;
+  gHandle->clientId = *(int64_t*)ptr;
   ptr = POINTER_SHIFT(ptr, sizeof(int64_t));
   gHandle->cgId = *(int64_t*)ptr;
   ptr = POINTER_SHIFT(ptr, sizeof(int64_t));
diff --git a/source/dnode/vnode/tq/src/tqMetaStore.c b/source/dnode/vnode/tq/src/tqMetaStore.c
index 5a88e2176f03d87a2ed5b44abe8b7cb026797981..57e20010e3b12b615875e1ecaba1eddd05161562 100644
--- a/source/dnode/vnode/tq/src/tqMetaStore.c
+++ b/source/dnode/vnode/tq/src/tqMetaStore.c
@@ -56,6 +56,7 @@ static inline int tqReadLastPage(int fd, STqIdxPageBuf* pBuf) {
   int offset = tqSeekLastPage(fd);
   int nBytes;
   if ((nBytes = read(fd, pBuf, TQ_PAGE_SIZE)) == -1) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
     return -1;
   }
   if (nBytes == 0) {
@@ -71,7 +72,7 @@ STqMetaStore* tqStoreOpen(const char* path, FTqSerialize serializer, FTqDeserial
                           int32_t tqConfigFlag) {
   STqMetaStore* pMeta = malloc(sizeof(STqMetaStore));
   if (pMeta == NULL) {
-    // close
+    terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
     return NULL;
   }
   memset(pMeta, 0, sizeof(STqMetaStore));
@@ -79,8 +80,9 @@ STqMetaStore* tqStoreOpen(const char* path, FTqSerialize serializer, FTqDeserial
   // concat data file name and index file name
   size_t pathLen = strlen(path);
   pMeta->dirPath = malloc(pathLen + 1);
-  if (pMeta->dirPath != NULL) {
-    // TODO: memory insufficient
+  if (pMeta->dirPath == NULL) {
+    terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
+    return NULL;
   }
   strcpy(pMeta->dirPath, path);
 
@@ -88,13 +90,14 @@ STqMetaStore* tqStoreOpen(const char* path, FTqSerialize serializer, FTqDeserial
 
   strcpy(name, path);
   if (taosDirExist(name) != 0 && taosMkDir(name) != 0) {
-    ASSERT(false);
+    terrno = TSDB_CODE_TQ_FAILED_TO_CREATE_DIR;
+    tqError("failed to create dir:%s since %s ", name, terrstr());
   }
   strcat(name, "/" TQ_IDX_NAME);
   int idxFd = open(name, O_RDWR | O_CREAT, 0755);
   if (idxFd < 0) {
-    ASSERT(false);
-    // close file
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    tqError("failed to open file:%s since %s ", name, terrstr());
     // free memory
     return NULL;
   }
@@ -102,9 +105,7 @@ STqMetaStore* tqStoreOpen(const char* path, FTqSerialize serializer, FTqDeserial
   pMeta->idxFd = idxFd;
   pMeta->unpersistHead = malloc(sizeof(STqMetaList));
   if (pMeta->unpersistHead == NULL) {
-    ASSERT(false);
-    // close file
-    // free memory
+    terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
     return NULL;
   }
   memset(pMeta->unpersistHead, 0, sizeof(STqMetaList));
@@ -114,7 +115,8 @@ STqMetaStore* tqStoreOpen(const char* path, FTqSerialize serializer, FTqDeserial
   strcat(name, "/" TQ_META_NAME);
   int fileFd = open(name, O_RDWR | O_CREAT, 0755);
   if (fileFd < 0) {
-    ASSERT(false);
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    tqError("failed to open file:%s since %s", name, terrstr());
     return NULL;
   }
 
@@ -129,7 +131,7 @@ STqMetaStore* tqStoreOpen(const char* path, FTqSerialize serializer, FTqDeserial
   STqIdxPageBuf      idxBuf;
   STqSerializedHead* serializedObj = malloc(TQ_PAGE_SIZE);
   if (serializedObj == NULL) {
-    // TODO:memory insufficient
+    terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
   }
   int  idxRead;
   int  allocated = TQ_PAGE_SIZE;
@@ -137,14 +139,16 @@ STqMetaStore* tqStoreOpen(const char* path, FTqSerialize serializer, FTqDeserial
   while ((idxRead = read(idxFd, &idxBuf, TQ_PAGE_SIZE))) {
     if (idxRead == -1) {
       // TODO: handle error
-      ASSERT(false);
+      terrno = TAOS_SYSTEM_ERROR(errno);
+      tqError("failed to read tq index file since %s", terrstr());
     }
     ASSERT(idxBuf.head.writeOffset == idxRead);
     // loop read every entry
     for (int i = 0; i < idxBuf.head.writeOffset - TQ_IDX_PAGE_HEAD_SIZE; i += TQ_IDX_SIZE) {
       STqMetaList* pNode = malloc(sizeof(STqMetaList));
       if (pNode == NULL) {
-        // TODO: free memory and return error
+        terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
+        // TODO: free memory
       }
       memset(pNode, 0, sizeof(STqMetaList));
       memcpy(&pNode->handle, &idxBuf.buffer[i], TQ_IDX_SIZE);
@@ -153,7 +157,8 @@ STqMetaStore* tqStoreOpen(const char* path, FTqSerialize serializer, FTqDeserial
       if (allocated < pNode->handle.serializedSize) {
         void* ptr = realloc(serializedObj, pNode->handle.serializedSize);
         if (ptr == NULL) {
-          // TODO: memory insufficient
+          terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
+          // TODO: free memory
         }
         serializedObj = ptr;
         allocated = pNode->handle.serializedSize;
@@ -292,7 +297,7 @@ int32_t tqStorePersist(STqMetaStore* pMeta) {
   STqMetaList*       pNode = pHead->unpersistNext;
   STqSerializedHead* pSHead = malloc(sizeof(STqSerializedHead));
   if (pSHead == NULL) {
-    // TODO: memory error
+    terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
     return -1;
   }
   pSHead->ver = TQ_SVER;
@@ -403,7 +408,6 @@ static int32_t tqHandlePutCommitted(STqMetaStore* pMeta, int64_t key, void* valu
   STqMetaList* pNode = pMeta->bucket[bucketKey];
   while (pNode) {
     if (pNode->handle.key == key) {
-      // TODO: think about thread safety
       if (pNode->handle.valueInUse && pNode->handle.valueInUse != TQ_DELETE_TOKEN) {
         pMeta->pDeleter(pNode->handle.valueInUse);
       }
@@ -416,7 +420,7 @@ static int32_t tqHandlePutCommitted(STqMetaStore* pMeta, int64_t key, void* valu
   }
   STqMetaList* pNewNode = malloc(sizeof(STqMetaList));
   if (pNewNode == NULL) {
-    // TODO: memory error
+    terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
     return -1;
   }
   memset(pNewNode, 0, sizeof(STqMetaList));
@@ -470,10 +474,10 @@ static inline int32_t tqHandlePutImpl(STqMetaStore* pMeta, int64_t key, void* va
   STqMetaList* pNode = pMeta->bucket[bucketKey];
   while (pNode) {
     if (pNode->handle.key == key) {
-      // TODO: think about thread safety
       if (pNode->handle.valueInTxn) {
         if (tqDupIntxnReject(pMeta->tqConfigFlag)) {
-          return -2;
+          terrno = TSDB_CODE_TQ_META_KEY_DUP_IN_TXN;
+          return -1;
         }
         if (pNode->handle.valueInTxn != TQ_DELETE_TOKEN) {
           pMeta->pDeleter(pNode->handle.valueInTxn);
@@ -488,7 +492,7 @@ static inline int32_t tqHandlePutImpl(STqMetaStore* pMeta, int64_t key, void* va
   }
   STqMetaList* pNewNode = malloc(sizeof(STqMetaList));
   if (pNewNode == NULL) {
-    // TODO: memory error
+    terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
     return -1;
   }
   memset(pNewNode, 0, sizeof(STqMetaList));
@@ -505,7 +509,7 @@ int32_t tqHandleMovePut(STqMetaStore* pMeta, int64_t key, void* value) { return
 int32_t tqHandleCopyPut(STqMetaStore* pMeta, int64_t key, void* value, size_t vsize) {
   void* vmem = malloc(vsize);
   if (vmem == NULL) {
-    // TODO: memory error
+    terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
     return -1;
   }
   memcpy(vmem, value, vsize);
@@ -535,6 +539,7 @@ int32_t tqHandleCommit(STqMetaStore* pMeta, int64_t key) {
   while (pNode) {
     if (pNode->handle.key == key) {
       if (pNode->handle.valueInTxn == NULL) {
+        terrno = TSDB_CODE_TQ_META_KEY_NOT_IN_TXN;
         return -1;
       }
       if (pNode->handle.valueInUse && pNode->handle.valueInUse != TQ_DELETE_TOKEN) {
@@ -548,7 +553,8 @@ int32_t tqHandleCommit(STqMetaStore* pMeta, int64_t key) {
       pNode = pNode->next;
     }
   }
-  return -2;
+  terrno = TSDB_CODE_TQ_META_NO_SUCH_KEY;
+  return -1;
 }
 
 int32_t tqHandleAbort(STqMetaStore* pMeta, int64_t key) {
@@ -564,12 +570,14 @@ int32_t tqHandleAbort(STqMetaStore* pMeta, int64_t key) {
         tqLinkUnpersist(pMeta, pNode);
         return 0;
       }
+      terrno = TSDB_CODE_TQ_META_KEY_NOT_IN_TXN;
       return -1;
     } else {
       pNode = pNode->next;
     }
   }
-  return -2;
+  terrno = TSDB_CODE_TQ_META_NO_SUCH_KEY;
+  return -1;
 }
 
 int32_t tqHandleDel(STqMetaStore* pMeta, int64_t key) {
@@ -588,7 +596,7 @@ int32_t tqHandleDel(STqMetaStore* pMeta, int64_t key) {
       pNode = pNode->next;
     }
   }
-  // no such key
+  terrno = TSDB_CODE_TQ_META_NO_SUCH_KEY;
   return -1;
 }