refactor: stream meta ref count

include/libs/stream/tstream.h

@@ -338,7 +338,7 @@ typedef struct SStreamTask {
   int32_t recoverWaitingUpstream;
   int64_t checkReqId;
   SArray* checkReqIds;  // shuffle
-
+  int32_t refCnt;
 } SStreamTask;
 
 int32_t tEncodeStreamEpInfo(SEncoder* pEncoder, const SStreamChildEpInfo* pInfo);
@@ -565,6 +565,7 @@ typedef struct SStreamMeta {
   TXN          txn;
   FTaskExpand* expandFunc;
   int32_t      vgId;
+  SRWLatch     lock;
 } SStreamMeta;
 
 SStreamMeta* streamMetaOpen(const char* path, void* ahandle, FTaskExpand expandFunc, int32_t vgId);
@@ -575,6 +576,10 @@ int32_t      streamMetaAddSerializedTask(SStreamMeta* pMeta, int64_t startVer, c
 int32_t      streamMetaRemoveTask(SStreamMeta* pMeta, int32_t taskId);
 SStreamTask* streamMetaGetTask(SStreamMeta* pMeta, int32_t taskId);
 
+SStreamTask* streamMetaAcquireTask(SStreamMeta* pMeta, int32_t taskId);
+void         streamMetaReleaseTask(SStreamMeta* pMeta, SStreamTask* pTask);
+void         streamMetaRemoveTask1(SStreamMeta* pMeta, int32_t taskId);
+
 int32_t streamMetaBegin(SStreamMeta* pMeta);
 int32_t streamMetaCommit(SStreamMeta* pMeta);
 int32_t streamMetaRollBack(SStreamMeta* pMeta);

source/dnode/mnode/impl/src/mndStream.c

@@ -738,6 +738,7 @@ static int32_t mndProcessDropStreamReq(SRpcMsg *pReq) {
   }
 
   sdbRelease(pMnode->pSdb, pStream);
+  mndTransDrop(pTrans);
 
   return TSDB_CODE_ACTION_IN_PROGRESS;
 }

source/dnode/snode/src/snode.c

@@ -36,13 +36,14 @@ void sndEnqueueStreamDispatch(SSnode *pSnode, SRpcMsg *pMsg) {
 
   int32_t taskId = req.taskId;
 
-  SStreamTask *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  SStreamTask *pTask = streamMetaAcquireTask(pSnode->pMeta, taskId);
   if (pTask) {
     SRpcMsg rsp = {
         .info = pMsg->info,
         .code = 0,
     };
     streamProcessDispatchReq(pTask, &req, &rsp, false);
+    streamMetaReleaseTask(pSnode->pMeta, pTask);
     rpcFreeCont(pMsg->pCont);
     taosFreeQitem(pMsg);
     return;
@@ -63,6 +64,7 @@ int32_t sndExpandTask(SSnode *pSnode, SStreamTask *pTask, int64_t ver) {
   ASSERT(pTask->taskLevel == TASK_LEVEL__AGG);
   ASSERT(taosArrayGetSize(pTask->childEpInfo) != 0);
 
+  pTask->refCnt = 1;
   pTask->schedStatus = TASK_SCHED_STATUS__INACTIVE;
   pTask->inputQueue = streamQueueOpen();
   pTask->outputQueue = streamQueueOpen();
@@ -166,15 +168,17 @@ int32_t sndProcessTaskDeployReq(SSnode *pSnode, char *msg, int32_t msgLen) {
 
 int32_t sndProcessTaskDropReq(SSnode *pSnode, char *msg, int32_t msgLen) {
   SVDropStreamTaskReq *pReq = (SVDropStreamTaskReq *)msg;
-  return streamMetaRemoveTask(pSnode->pMeta, pReq->taskId);
+  streamMetaRemoveTask1(pSnode->pMeta, pReq->taskId);
+  return 0;
 }
 
 int32_t sndProcessTaskRunReq(SSnode *pSnode, SRpcMsg *pMsg) {
   SStreamTaskRunReq *pReq = pMsg->pCont;
   int32_t            taskId = pReq->taskId;
-  SStreamTask       *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  SStreamTask       *pTask = streamMetaAcquireTask(pSnode->pMeta, taskId);
   if (pTask) {
     streamProcessRunReq(pTask);
+    streamMetaReleaseTask(pSnode->pMeta, pTask);
     return 0;
   } else {
     return -1;
@@ -191,13 +195,14 @@ int32_t sndProcessTaskDispatchReq(SSnode *pSnode, SRpcMsg *pMsg, bool exec) {
   tDecodeStreamDispatchReq(&decoder, &req);
   int32_t taskId = req.taskId;
 
-  SStreamTask *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  SStreamTask *pTask = streamMetaAcquireTask(pSnode->pMeta, taskId);
   if (pTask) {
     SRpcMsg rsp = {
         .info = pMsg->info,
         .code = 0,
     };
     streamProcessDispatchReq(pTask, &req, &rsp, exec);
+    streamMetaReleaseTask(pSnode->pMeta, pTask);
     return 0;
   } else {
     return -1;
@@ -215,13 +220,14 @@ int32_t sndProcessTaskRetrieveReq(SSnode *pSnode, SRpcMsg *pMsg) {
   tDecodeStreamRetrieveReq(&decoder, &req);
   tDecoderClear(&decoder);
   int32_t      taskId = req.dstTaskId;
-  SStreamTask *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  SStreamTask *pTask = streamMetaAcquireTask(pSnode->pMeta, taskId);
   if (pTask) {
     SRpcMsg rsp = {
         .info = pMsg->info,
         .code = 0,
     };
     streamProcessRetrieveReq(pTask, &req, &rsp);
+    streamMetaReleaseTask(pSnode->pMeta, pTask);
     tDeleteStreamRetrieveReq(&req);
     return 0;
   } else {
@@ -232,9 +238,10 @@ int32_t sndProcessTaskRetrieveReq(SSnode *pSnode, SRpcMsg *pMsg) {
 int32_t sndProcessTaskDispatchRsp(SSnode *pSnode, SRpcMsg *pMsg) {
   SStreamDispatchRsp *pRsp = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
   int32_t             taskId = ntohl(pRsp->upstreamTaskId);
-  SStreamTask        *pTask = streamMetaGetTask(pSnode->pMeta, taskId);
+  SStreamTask        *pTask = streamMetaAcquireTask(pSnode->pMeta, taskId);
   if (pTask) {
     streamProcessDispatchRsp(pTask, pRsp, pMsg->code);
+    streamMetaReleaseTask(pSnode->pMeta, pTask);
     return 0;
   } else {
     return -1;
@@ -274,15 +281,17 @@ int32_t sndProcessTaskRecoverFinishReq(SSnode *pSnode, SRpcMsg *pMsg) {
   tDecoderClear(&decoder);
 
   // find task
-  SStreamTask *pTask = streamMetaGetTask(pSnode->pMeta, req.taskId);
+  SStreamTask *pTask = streamMetaAcquireTask(pSnode->pMeta, req.taskId);
   if (pTask == NULL) {
     return -1;
   }
   // do process request
   if (streamProcessRecoverFinishReq(pTask, req.childId) < 0) {
+    streamMetaReleaseTask(pSnode->pMeta, pTask);
     return -1;
   }
 
+  streamMetaReleaseTask(pSnode->pMeta, pTask);
   return 0;
 }
 

source/dnode/vnode/src/tq/tq.c

@@ -882,6 +882,7 @@ int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask, int64_t ver) {
     ASSERT(taosArrayGetSize(pTask->childEpInfo) != 0);
   }
 
+  pTask->refCnt = 1;
   pTask->schedStatus = TASK_SCHED_STATUS__INACTIVE;
 
   pTask->inputQueue = streamQueueOpen();
@@ -975,13 +976,15 @@ int32_t tqProcessStreamTaskCheckReq(STQ* pTq, SRpcMsg* pMsg) {
       .upstreamNodeId = req.upstreamNodeId,
       .upstreamTaskId = req.upstreamTaskId,
   };
-  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  SStreamTask* pTask = streamMetaAcquireTask(pTq->pStreamMeta, taskId);
   if (pTask && atomic_load_8(&pTask->taskStatus) == TASK_STATUS__NORMAL) {
     rsp.status = 1;
   } else {
     rsp.status = 0;
   }
 
+  streamMetaReleaseTask(pTq->pStreamMeta, pTask);
+
   tqDebug("tq recv task check req(reqId: %" PRId64 ") %d at node %d check req from task %d at node %d, status %d",
           rsp.reqId, rsp.downstreamTaskId, rsp.downstreamNodeId, rsp.upstreamTaskId, rsp.upstreamNodeId, rsp.status);
 
@@ -1027,12 +1030,14 @@ int32_t tqProcessStreamTaskCheckRsp(STQ* pTq, int64_t version, char* msg, int32_
   tqDebug("tq recv task check rsp(reqId: %" PRId64 ") %d at node %d check req from task %d at node %d, status %d",
           rsp.reqId, rsp.downstreamTaskId, rsp.downstreamNodeId, rsp.upstreamTaskId, rsp.upstreamNodeId, rsp.status);
 
-  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, rsp.upstreamTaskId);
+  SStreamTask* pTask = streamMetaAcquireTask(pTq->pStreamMeta, rsp.upstreamTaskId);
   if (pTask == NULL) {
     return -1;
   }
 
-  return streamProcessTaskCheckRsp(pTask, &rsp, version);
+  code = streamProcessTaskCheckRsp(pTask, &rsp, version);
+  streamMetaReleaseTask(pTq->pStreamMeta, pTask);
+  return code;
 }
 
 int32_t tqProcessTaskDeployReq(STQ* pTq, int64_t version, char* msg, int32_t msgLen) {
@@ -1077,15 +1082,17 @@ int32_t tqProcessTaskRecover1Req(STQ* pTq, SRpcMsg* pMsg) {
   int32_t msgLen = pMsg->contLen;
 
   SStreamRecoverStep1Req* pReq = (SStreamRecoverStep1Req*)msg;
-  SStreamTask*            pTask = streamMetaGetTask(pTq->pStreamMeta, pReq->taskId);
+  SStreamTask*            pTask = streamMetaAcquireTask(pTq->pStreamMeta, pReq->taskId);
   if (pTask == NULL) {
     return -1;
   }
+  ASSERT(pReq->taskId == pTask->taskId);
 
   // check param
   int64_t fillVer1 = pTask->startVer;
   if (fillVer1 <= 0) {
     ASSERT(0);
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return -1;
   }
 
@@ -1096,10 +1103,11 @@ int32_t tqProcessTaskRecover1Req(STQ* pTq, SRpcMsg* pMsg) {
   SStreamRecoverStep2Req req;
   code = streamBuildSourceRecover2Req(pTask, &req);
   if (code < 0) {
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return -1;
   }
 
-  ASSERT(pReq->taskId == pTask->taskId);
+  streamMetaReleaseTask(pTq->pStreamMeta, pTask);
 
   // serialize msg
   int32_t len = sizeof(SStreamRecoverStep1Req);
@@ -1127,7 +1135,7 @@ int32_t tqProcessTaskRecover1Req(STQ* pTq, SRpcMsg* pMsg) {
 int32_t tqProcessTaskRecover2Req(STQ* pTq, int64_t version, char* msg, int32_t msgLen) {
   int32_t                 code;
   SStreamRecoverStep2Req* pReq = (SStreamRecoverStep2Req*)msg;
-  SStreamTask*            pTask = streamMetaGetTask(pTq->pStreamMeta, pReq->taskId);
+  SStreamTask*            pTask = streamMetaAcquireTask(pTq->pStreamMeta, pReq->taskId);
   if (pTask == NULL) {
     return -1;
   }
@@ -1135,27 +1143,33 @@ int32_t tqProcessTaskRecover2Req(STQ* pTq, int64_t version, char* msg, int32_t m
   // do recovery step 2
   code = streamSourceRecoverScanStep2(pTask, version);
   if (code < 0) {
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return -1;
   }
 
   // restore param
   code = streamRestoreParam(pTask);
   if (code < 0) {
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return -1;
   }
 
   // set status normal
   code = streamSetStatusNormal(pTask);
   if (code < 0) {
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return -1;
   }
 
   // dispatch recover finish req to all related downstream task
   code = streamDispatchRecoverFinishReq(pTask);
   if (code < 0) {
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return -1;
   }
 
+  streamMetaReleaseTask(pTq->pStreamMeta, pTask);
+
   return 0;
 }
 
@@ -1172,15 +1186,17 @@ int32_t tqProcessTaskRecoverFinishReq(STQ* pTq, SRpcMsg* pMsg) {
   tDecoderClear(&decoder);
 
   // find task
-  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, req.taskId);
+  SStreamTask* pTask = streamMetaAcquireTask(pTq->pStreamMeta, req.taskId);
   if (pTask == NULL) {
     return -1;
   }
   // do process request
   if (streamProcessRecoverFinishReq(pTask, req.childId) < 0) {
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return -1;
   }
 
+  streamMetaReleaseTask(pTq->pStreamMeta, pTask);
   return 0;
 }
 
@@ -1354,9 +1370,10 @@ int32_t tqProcessSubmitReq(STQ* pTq, SSubmitReq* pReq, int64_t ver) {
 int32_t tqProcessTaskRunReq(STQ* pTq, SRpcMsg* pMsg) {
   SStreamTaskRunReq* pReq = pMsg->pCont;
   int32_t            taskId = pReq->taskId;
-  SStreamTask*       pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  SStreamTask*       pTask = streamMetaAcquireTask(pTq->pStreamMeta, taskId);
   if (pTask) {
     streamProcessRunReq(pTask);
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return 0;
   } else {
     return -1;
@@ -1373,13 +1390,14 @@ int32_t tqProcessTaskDispatchReq(STQ* pTq, SRpcMsg* pMsg, bool exec) {
   tDecodeStreamDispatchReq(&decoder, &req);
   int32_t taskId = req.taskId;
 
-  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  SStreamTask* pTask = streamMetaAcquireTask(pTq->pStreamMeta, taskId);
   if (pTask) {
     SRpcMsg rsp = {
         .info = pMsg->info,
         .code = 0,
     };
     streamProcessDispatchReq(pTask, &req, &rsp, exec);
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return 0;
   } else {
     return -1;
@@ -1389,10 +1407,11 @@ int32_t tqProcessTaskDispatchReq(STQ* pTq, SRpcMsg* pMsg, bool exec) {
 int32_t tqProcessTaskDispatchRsp(STQ* pTq, SRpcMsg* pMsg) {
   SStreamDispatchRsp* pRsp = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
   int32_t             taskId = ntohl(pRsp->upstreamTaskId);
-  SStreamTask*        pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  SStreamTask*        pTask = streamMetaAcquireTask(pTq->pStreamMeta, taskId);
   tqDebug("recv dispatch rsp, code: %x", pMsg->code);
   if (pTask) {
     streamProcessDispatchRsp(pTask, pRsp, pMsg->code);
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     return 0;
   } else {
     return -1;
@@ -1401,7 +1420,8 @@ int32_t tqProcessTaskDispatchRsp(STQ* pTq, SRpcMsg* pMsg) {
 
 int32_t tqProcessTaskDropReq(STQ* pTq, int64_t version, char* msg, int32_t msgLen) {
   SVDropStreamTaskReq* pReq = (SVDropStreamTaskReq*)msg;
-  return streamMetaRemoveTask(pTq->pStreamMeta, pReq->taskId);
+  streamMetaRemoveTask1(pTq->pStreamMeta, pReq->taskId);
+  return 0;
 }
 
 int32_t tqProcessTaskRetrieveReq(STQ* pTq, SRpcMsg* pMsg) {
@@ -1414,13 +1434,14 @@ int32_t tqProcessTaskRetrieveReq(STQ* pTq, SRpcMsg* pMsg) {
   tDecodeStreamRetrieveReq(&decoder, &req);
   tDecoderClear(&decoder);
   int32_t      taskId = req.dstTaskId;
-  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  SStreamTask* pTask = streamMetaAcquireTask(pTq->pStreamMeta, taskId);
   if (pTask) {
     SRpcMsg rsp = {
         .info = pMsg->info,
         .code = 0,
     };
     streamProcessRetrieveReq(pTask, &req, &rsp);
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     tDeleteStreamRetrieveReq(&req);
     return 0;
   } else {
@@ -1452,13 +1473,14 @@ int32_t vnodeEnqueueStreamMsg(SVnode* pVnode, SRpcMsg* pMsg) {
 
   int32_t taskId = req.taskId;
 
-  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  SStreamTask* pTask = streamMetaAcquireTask(pTq->pStreamMeta, taskId);
   if (pTask) {
     SRpcMsg rsp = {
         .info = pMsg->info,
         .code = 0,
     };
     streamProcessDispatchReq(pTask, &req, &rsp, false);
+    streamMetaReleaseTask(pTq->pStreamMeta, pTask);
     rpcFreeCont(pMsg->pCont);
     taosFreeQitem(pMsg);
     return 0;

source/libs/executor/src/scanoperator.c

@@ -2385,6 +2385,8 @@ static void destroyStreamScanOperatorInfo(void* param) {
     taosMemoryFree(pStreamScan->pPseudoExpr);
   }
 
+  cleanupExprSupp(&pStreamScan->tbnameCalSup);
+
   updateInfoDestroy(pStreamScan->pUpdateInfo);
   blockDataDestroy(pStreamScan->pRes);
   blockDataDestroy(pStreamScan->pUpdateRes);

source/libs/stream/src/streamMeta.c

@@ -169,6 +169,47 @@ SStreamTask* streamMetaGetTask(SStreamMeta* pMeta, int32_t taskId) {
   }
 }
 
+SStreamTask* streamMetaAcquireTask(SStreamMeta* pMeta, int32_t taskId) {
+  taosRLockLatch(&pMeta->lock);
+
+  SStreamTask** ppTask = (SStreamTask**)taosHashGet(pMeta->pTasks, &taskId, sizeof(int32_t));
+  if (ppTask) {
+    SStreamTask* pTask = *ppTask;
+    if (atomic_load_8(&pTask->taskStatus) != TASK_STATUS__DROPPING) {
+      atomic_add_fetch_32(&pTask->refCnt, 1);
+      taosRUnLockLatch(&pMeta->lock);
+      return pTask;
+    } else {
+      taosRUnLockLatch(&pMeta->lock);
+      return NULL;
+    }
+  }
+  taosRUnLockLatch(&pMeta->lock);
+  return NULL;
+}
+
+void streamMetaReleaseTask(SStreamMeta* pMeta, SStreamTask* pTask) {
+  int32_t left = atomic_sub_fetch_32(&pTask->refCnt, 1);
+  ASSERT(left >= 0);
+  if (left == 0) {
+    ASSERT(atomic_load_8(&pTask->taskStatus) == TASK_STATUS__DROPPING);
+    tFreeSStreamTask(pTask);
+  }
+}
+
+void streamMetaRemoveTask1(SStreamMeta* pMeta, int32_t taskId) {
+  SStreamTask** ppTask = (SStreamTask**)taosHashGet(pMeta->pTasks, &taskId, sizeof(int32_t));
+  if (ppTask) {
+    SStreamTask* pTask = *ppTask;
+    taosHashRemove(pMeta->pTasks, &taskId, sizeof(int32_t));
+    atomic_store_8(&pTask->taskStatus, TASK_STATUS__DROPPING);
+
+    taosWLockLatch(&pMeta->lock);
+    streamMetaReleaseTask(pMeta, pTask);
+    taosWUnLockLatch(&pMeta->lock);
+  }
+}
+
 int32_t streamMetaRemoveTask(SStreamMeta* pMeta, int32_t taskId) {
   SStreamTask** ppTask = (SStreamTask**)taosHashGet(pMeta->pTasks, &taskId, sizeof(int32_t));
   if (ppTask) {

source/libs/wal/src/walRef.c

@@ -32,7 +32,7 @@ SWalRef *walOpenRef(SWal *pWal) {
   return pRef;
 }
 
-#if 0
+#if 1
 void walCloseRef(SWal *pWal, int64_t refId) {
   SWalRef **ppRef = taosHashGet(pWal->pRefHash, &refId, sizeof(int64_t));
   if (ppRef == NULL) return;
@@ -67,7 +67,7 @@ int32_t walRefVer(SWalRef *pRef, int64_t ver) {
   return 0;
 }
 
-#if 0
+#if 1
 void walUnrefVer(SWalRef *pRef) {
   pRef->refId = -1;
   pRef->refFile = -1;