diff --git a/source/libs/executor/src/dataSinkMgt.c b/source/libs/executor/src/dataSinkMgt.c
index 997397314fc253d55530d9729c3961cc1357950b..64206fc10aac0ab9835d65333322657a0ccaecbf 100644
--- a/source/libs/executor/src/dataSinkMgt.c
+++ b/source/libs/executor/src/dataSinkMgt.c
@@ -60,4 +60,5 @@ void dsScheduleProcess(void* ahandle, void* pItem) {
 void dsDestroyDataSinker(DataSinkHandle handle) {
   SDataSinkHandle* pHandleImpl = (SDataSinkHandle*)handle;
   pHandleImpl->fDestroy(pHandleImpl);
+  taosMemoryFree(pHandleImpl);
 }
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index a237eb0e7d886e1634be068f883d574f7f93a989..10d5e717bd4c25af10d4d7f668a5fe21930ba024 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -2826,6 +2826,7 @@ void relocateColumnData(SSDataBlock* pBlock, const SArray* pColMatchInfo, SArray
     }
 
     if (p->info.colId == pmInfo->colId) {
+      colDataDestroy(taosArrayGet(pBlock->pDataBlock, pmInfo->targetSlotId));
       taosArraySet(pBlock->pDataBlock, pmInfo->targetSlotId, p);
       i++;
       j++;
@@ -4687,7 +4688,7 @@ static SExecTaskInfo* createExecTaskInfo(uint64_t queryId, uint64_t taskId, EOPT
 
   char* p = taosMemoryCalloc(1, 128);
   snprintf(p, 128, "TID:0x%" PRIx64 " QID:0x%" PRIx64, taskId, queryId);
-  pTaskInfo->id.str = strdup(p);
+  pTaskInfo->id.str = p;
 
   return pTaskInfo;
 }
@@ -5300,6 +5301,7 @@ void doDestroyTask(SExecTaskInfo* pTaskInfo) {
   //  taosArrayDestroy(pTaskInfo->summary.queryProfEvents);
   //  taosHashCleanup(pTaskInfo->summary.operatorProfResults);
 
+  destroyOperatorInfo(pTaskInfo->pRoot);
   taosMemoryFreeClear(pTaskInfo->sql);
   taosMemoryFreeClear(pTaskInfo->id.str);
   taosMemoryFreeClear(pTaskInfo);
diff --git a/source/libs/qworker/inc/qworkerInt.h b/source/libs/qworker/inc/qworkerInt.h
index ca471262ff747b2466159a93571ac77120b3b9ac..3ecf9878119be9891e74e56e4d59afc23bb99b34 100644
--- a/source/libs/qworker/inc/qworkerInt.h
+++ b/source/libs/qworker/inc/qworkerInt.h
@@ -25,6 +25,7 @@ extern "C" {
 #include "tlockfree.h"
 #include "ttimer.h"
 #include "tref.h"
+#include "plannodes.h"
 
 #define QW_DEFAULT_SCHEDULER_NUMBER 10000
 #define QW_DEFAULT_TASK_NUMBER      10000
@@ -131,8 +132,9 @@ typedef struct SQWTaskCtx {
 
   int8_t events[QW_EVENT_MAX];
 
-  void *taskHandle;
-  void *sinkHandle;
+  void     *taskHandle;
+  void     *sinkHandle;
+  SSubplan *plan;
 } SQWTaskCtx;
 
 typedef struct SQWSchStatus {
diff --git a/source/libs/qworker/src/qworker.c b/source/libs/qworker/src/qworker.c
index bd7ee6321aa067357d36d6739ea252ce9e00fdc1..717958c033c491304ed9c7ceba909a49b1f03e3f 100644
--- a/source/libs/qworker/src/qworker.c
+++ b/source/libs/qworker/src/qworker.c
@@ -424,6 +424,11 @@ void qwFreeTask(QW_FPARAMS_DEF, SQWTaskCtx *ctx) {
     dsDestroyDataSinker(ctx->sinkHandle);
     ctx->sinkHandle = NULL;
   }
+
+  if (ctx->plan) {
+    nodesDestroyNode(ctx->plan);
+    ctx->plan = NULL;
+  }
 }
 
 int32_t qwDropTaskCtx(QW_FPARAMS_DEF) {
@@ -440,6 +445,7 @@ int32_t qwDropTaskCtx(QW_FPARAMS_DEF) {
 
   atomic_store_ptr(&ctx->taskHandle, NULL);
   atomic_store_ptr(&ctx->sinkHandle, NULL);
+  atomic_store_ptr(&ctx->plan, NULL);
 
   QW_SET_EVENT_PROCESSED(ctx, QW_EVENT_DROP);
 
@@ -922,7 +928,7 @@ _return:
 int32_t qwProcessQuery(QW_FPARAMS_DEF, SQWMsg *qwMsg, int8_t taskType, int8_t explain) {
   int32_t          code = 0;
   bool             queryRsped = false;
-  struct SSubplan *plan = NULL;
+  SSubplan*        plan = NULL;
   SQWPhaseInput    input = {0};
   qTaskInfo_t      pTaskInfo = NULL;
   DataSinkHandle   sinkHandle = NULL;
@@ -950,6 +956,8 @@ int32_t qwProcessQuery(QW_FPARAMS_DEF, SQWMsg *qwMsg, int8_t taskType, int8_t ex
     QW_ERR_JRET(code);
   }
 
+  ctx->plan = plan;
+
   code = qCreateExecTask(qwMsg->node, mgmt->nodeId, tId, plan, &pTaskInfo, &sinkHandle, OPTR_EXEC_MODEL_BATCH);
   if (code) {
     QW_TASK_ELOG("qCreateExecTask failed, code:%x - %s", code, tstrerror(code));
@@ -1428,6 +1436,10 @@ void qwCloseRef(void) {
   taosWUnLockLatch(&gQwMgmt.lock);
 }
 
+void qwDestroySchStatus(SQWSchStatus *pStatus) {
+  taosHashCleanup(pStatus->tasksHash);
+}
+
 void qwDestroyImpl(void *pMgmt) {
   SQWorker *mgmt = (SQWorker *)pMgmt;
 
@@ -1439,6 +1451,13 @@ void qwDestroyImpl(void *pMgmt) {
   // TODO FREE ALL
 
   taosHashCleanup(mgmt->ctxHash);
+
+  void *pIter = taosHashIterate(mgmt->schHash, NULL);
+  while (pIter) {
+    SQWSchStatus *sch = (SQWSchStatus *)pIter;
+    qwDestroySchStatus(sch);
+    pIter = taosHashIterate(mgmt->schHash, pIter);
+  }  
   taosHashCleanup(mgmt->schHash);
 
   taosMemoryFree(mgmt);
diff --git a/source/libs/transport/src/transSrv.c b/source/libs/transport/src/transSrv.c
index ad3f5202106805084dcf3eaa88418cc55ee6b2d3..c0d8ca44eea9b6a4f048f2a99f1b751c029eb6b7 100644
--- a/source/libs/transport/src/transSrv.c
+++ b/source/libs/transport/src/transSrv.c
@@ -786,6 +786,10 @@ static void uvDestroyConn(uv_handle_t* handle) {
   transQueueDestroy(&conn->srvMsgs);
   QUEUE_REMOVE(&conn->queue);
   taosMemoryFree(conn->pTcp);
+  if (conn->regArg.init == 1) {
+    transFreeMsg(conn->regArg.msg.pCont);
+    conn->regArg.init = 0;
+  }
   taosMemoryFree(conn);
 
   if (thrd->quit && QUEUE_IS_EMPTY(&thrd->conn)) {