fix:error in tmq for snapshot

examples/c/tmq_taosx.c

@@ -84,7 +84,7 @@ int32_t init_env() {
   }
   taos_free_result(pRes);
 
-  pRes = taos_query(pConn, "create database if not exists db_taosx vgroups 4");
+  pRes = taos_query(pConn, "create database if not exists db_taosx vgroups 1");
   if (taos_errno(pRes) != 0) {
     printf("error in create db_taosx, reason:%s\n", taos_errstr(pRes));
     return -1;
@@ -98,7 +98,7 @@ int32_t init_env() {
   }
   taos_free_result(pRes);
 
-  pRes = taos_query(pConn, "create database if not exists abc1 vgroups 3");
+  pRes = taos_query(pConn, "create database if not exists abc1 vgroups 1");
   if (taos_errno(pRes) != 0) {
     printf("error in create db, reason:%s\n", taos_errstr(pRes));
     return -1;

include/libs/executor/executor.h

@@ -43,7 +43,6 @@ typedef struct SReadHandle {
   int32_t numOfVgroups;
 
   void*   sContext;      // SSnapContext*
-  void*   pWalReader;
   SHashObj *pFilterOutTbUid;
 
 } SReadHandle;

source/common/src/tdatablock.c

@@ -1228,6 +1228,7 @@ void blockDataFreeRes(SSDataBlock* pBlock) {
   }
 
   taosArrayDestroy(pBlock->pDataBlock);
+  pBlock->pDataBlock = NULL;
   taosMemoryFreeClear(pBlock->pBlockAgg);
   memset(&pBlock->info, 0, sizeof(SDataBlockInfo));
 }

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

@@ -385,11 +385,17 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
     if (tqSendMetaPollRsp(pTq, pMsg, pReq, &metaRsp) < 0) {
       code = -1;
     }
+    taosMemoryFree(metaRsp.metaRsp);
     goto OVER;
   }
 
   tqDebug("tmq poll: consumer %ld, subkey %s, vg %d, no data", consumerId, pHandle->subKey,
           TD_VID(pTq->pVnode));
+
+  tqOffsetResetToLog(&dataRsp.rspOffset, metaRsp.rspOffset.version);
+  if (tqSendDataRsp(pTq, pMsg, pReq, &dataRsp) < 0) {
+    code = -1;
+  }
 OVER:
 
   // TODO wrap in destroy func
@@ -404,8 +410,6 @@ OVER:
     taosArrayDestroyP(dataRsp.blockTbName, (FDelete)taosMemoryFree);
   }
 
-  taosMemoryFreeClear(metaRsp.metaRsp);
-
   return code;
 }
 
@@ -497,7 +501,6 @@ int32_t tqProcessVgChangeReq(STQ* pTq, char* msg, int32_t msgLen) {
           taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_NO_LOCK);
       buildSnapContext(handle.meta, handle.version, 0, pHandle->execHandle.subType, pHandle->fetchMeta, (SSnapContext **)(&handle.sContext));
       handle.tqReader = pHandle->execHandle.pExecReader;
-      handle.pWalReader = ((STqReader*)handle.tqReader)->pWalReader;
       handle.pFilterOutTbUid = pHandle->execHandle.execDb.pFilterOutTbUid;
 
       pHandle->execHandle.task =
@@ -516,7 +519,6 @@ int32_t tqProcessVgChangeReq(STQ* pTq, char* msg, int32_t msgLen) {
 
       buildSnapContext(handle.meta, handle.version, req.suid, pHandle->execHandle.subType, pHandle->fetchMeta, (SSnapContext **)(&handle.sContext));
       handle.tqReader = pHandle->execHandle.pExecReader;
-      handle.pWalReader = ((STqReader*)handle.tqReader)->pWalReader;
       pHandle->execHandle.task =
           qCreateQueueExecTaskInfo(NULL, &handle, NULL, NULL);
     }

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

@@ -124,6 +124,7 @@ int64_t tqScan(STQ* pTq, const STqHandle* pHandle, SMqDataRsp* pRsp, SMqMetaRsp*
 
     if (pRsp->blockNum > 0){
       qStreamExtractOffset(task, &pRsp->rspOffset);
+      tqDebug("task exec exited, get data");
       break;
     }
 
@@ -131,11 +132,12 @@ int64_t tqScan(STQ* pTq, const STqHandle* pHandle, SMqDataRsp* pRsp, SMqMetaRsp*
     if(tmp->rspOffset.type == TMQ_OFFSET__SNAPSHOT_DATA){
       qStreamPrepareScan(task, &tmp->rspOffset, pHandle->execHandle.subType);
       tmp->rspOffset.type = TMQ_OFFSET__SNAPSHOT_META;
+      tqDebug("task exec change to get meta");
       continue;
     }
 
     *pMetaRsp = *tmp;
-    tqDebug("task exec exited");
+    tqDebug("task exec exited, get meta");
     break;
   }
 

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

@@ -92,7 +92,6 @@ int32_t tqMetaRestoreHandle(STQ* pTq) {
 
       handle.execHandle.pExecReader = tqOpenReader(pTq->pVnode);
       buildSnapContext(reader.meta, reader.version, 0, handle.execHandle.subType, handle.fetchMeta, (SSnapContext **)(&reader.sContext));
-      reader.pWalReader = walOpenReader(pTq->pVnode->pWal, NULL);
       reader.tqReader = handle.execHandle.pExecReader;
       reader.pFilterOutTbUid = handle.execHandle.execDb.pFilterOutTbUid;
 

source/libs/executor/inc/executorimpl.h

@@ -498,13 +498,15 @@ typedef struct SStreamRawScanInfo{
 //  int64_t   snapVersion;
 //  void     *metaInfo;
 //  void     *dataInfo;
-
+  SVnode*         vnode;
   SWalCkHead*     pCkHead;
-  SReadHandle*    readHandle;
+  bool            needFetchLog;
+  bool            hasDataInOneFetchVer;
   SSDataBlock     pRes;         // result SSDataBlock
-  uint64_t        groupId;
   STsdbReader*    dataReader;
   SSnapContext*   sContext;
+  STqReader*      tqReader;
+  SHashObj*       pFilterOutTbUid;
 }SStreamRawScanInfo;
 
 typedef struct SSysTableScanInfo {

source/libs/executor/src/executor.c

@@ -768,7 +768,7 @@ int32_t qStreamPrepareScan(qTaskInfo_t tinfo, STqOffsetVal* pOffset, int8_t subT
     pTaskInfo->streamInfo.tableCond.twindows.skey = pOffset->ts;
     pTaskInfo->tableqinfoList.pTableList = taosArrayInit(1, sizeof(STableKeyInfo));
     taosArrayPush(pTaskInfo->tableqinfoList.pTableList, &(STableKeyInfo){.uid = mtInfo.uid, .groupId = 0});
-    tsdbReaderOpen(pInfo->readHandle->vnode, &pTaskInfo->streamInfo.tableCond, pTaskInfo->tableqinfoList.pTableList, &pInfo->dataReader, NULL);
+    tsdbReaderOpen(pInfo->vnode, &pTaskInfo->streamInfo.tableCond, pTaskInfo->tableqinfoList.pTableList, &pInfo->dataReader, NULL);
 
     qDebug("tsdb reader snapshot change to uid %ld ts %ld", pOffset->uid, pOffset->ts);
   }else if(pOffset->type == TMQ_OFFSET__SNAPSHOT_META){

source/libs/executor/src/scanoperator.c

@@ -1464,6 +1464,7 @@ static SSDataBlock* doRawScan(SOperatorInfo* pOperator) {
   SExecTaskInfo*   pTaskInfo = pOperator->pTaskInfo;
   SStreamRawScanInfo* pInfo = pOperator->info;
   pTaskInfo->streamInfo.metaRsp.metaRspLen = 0;   // use metaRspLen !=0 to judge if data is meta
+  pTaskInfo->streamInfo.metaRsp.metaRsp = NULL;
 
   qDebug("stream scan called");
   if(pTaskInfo->streamInfo.prepareStatus.type == TMQ_OFFSET__SNAPSHOT_DATA){
@@ -1529,29 +1530,49 @@ static SSDataBlock* doRawScan(SOperatorInfo* pOperator) {
 
     return NULL;
   }else if (pTaskInfo->streamInfo.prepareStatus.type == TMQ_OFFSET__LOG) {
-    if(pInfo->pCkHead == NULL){
-      pInfo->pCkHead = taosMemoryCalloc(1, sizeof(SWalCkHead) + 2048);
-      if (pInfo->pCkHead == NULL) {
-
-      }
-      walSetReaderCapacity(pInfo->readHandle->pWalReader, 2048);
-    }
-
     int64_t fetchVer = pTaskInfo->streamInfo.prepareStatus.version;
 
-    SWalCont* pHead = &pInfo->pCkHead->head;
+    while(1){
-    if(pHead->msgType != TDMT_VND_SUBMIT){
+      if(pInfo->needFetchLog){
-      fetchVer++;
+        fetchVer++;
-      if (tqFetchLog(pInfo->readHandle->pWalReader, pInfo->sContext->withMeta, &fetchVer, &pInfo->pCkHead) < 0) {
+        if (tqFetchLog(pInfo->tqReader->pWalReader, pInfo->sContext->withMeta, &fetchVer, &pInfo->pCkHead) < 0) {
-        return NULL;
+          qDebug("tmq poll: consumer log end. offset %" PRId64, fetchVer);
-      }
+          pTaskInfo->streamInfo.metaRsp.rspOffset.version = fetchVer;
-      qDebug("tmq poll: consumer log offset %" PRId64 " msgType %d", fetchVer, pHead->msgType);
+          pTaskInfo->streamInfo.metaRsp.rspOffset.type = TMQ_OFFSET__LOG;
-      pHead = &pInfo->pCkHead->head;
+          return NULL;
+        }
+        SWalCont* pHead = &pInfo->pCkHead->head;
+        qDebug("tmq poll: consumer log offset %" PRId64 " msgType %d", fetchVer, pHead->msgType);
 
-      if(pHead->msgType == TDMT_VND_SUBMIT){
+        if (pHead->msgType == TDMT_VND_SUBMIT) {
-        SSubmitReq* pCont = (SSubmitReq*)&pHead->body;
+          SSubmitReq* pCont = (SSubmitReq*)&pHead->body;
-        tqReaderSetDataMsg(pInfo->readHandle->tqReader, pCont, 0);
+          tqReaderSetDataMsg(pInfo->tqReader, pCont, 0);
-      }else if(pInfo->sContext->withMeta){
+          pTaskInfo->streamInfo.lastStatus.type = TMQ_OFFSET__LOG;
+          pTaskInfo->streamInfo.lastStatus.version = fetchVer;
+          pInfo->hasDataInOneFetchVer = false;
+        }
+      }
+
+      SWalCont* pHead = &pInfo->pCkHead->head;
+
+      if (pHead->msgType == TDMT_VND_SUBMIT) {
+        blockDataFreeRes(&pInfo->pRes);
+        SSDataBlock* block = tqLogScanExec(pInfo->sContext->subType, pInfo->tqReader, pInfo->pFilterOutTbUid, &pInfo->pRes);
+        if(block){
+          qDebug("fetch data msg, ver:%" PRId64 ", type:%d", pHead->version, pHead->msgType);
+          pInfo->needFetchLog = false;
+          pInfo->hasDataInOneFetchVer = true;
+          return block;
+        }else{
+          pInfo->needFetchLog = true;
+
+          if(pInfo->hasDataInOneFetchVer){
+            return block;
+          }else{
+            continue;
+          }
+        }
+      } else if(pInfo->sContext->withMeta){
         ASSERT(IS_META_MSG(pHead->msgType));
         qDebug("fetch meta msg, ver:%" PRId64 ", type:%d", pHead->version, pHead->msgType);
         pTaskInfo->streamInfo.metaRsp.rspOffset.version = fetchVer;
@@ -1562,23 +1583,8 @@ static SSDataBlock* doRawScan(SOperatorInfo* pOperator) {
         memcpy(pTaskInfo->streamInfo.metaRsp.metaRsp, pHead->body, pHead->bodyLen);
         return NULL;
       }
-    }
 
-    if (pHead->msgType == TDMT_VND_SUBMIT) {
+      pInfo->needFetchLog = true;
-      while(1){
-        blockDataFreeRes(&pInfo->pRes);
-        SSDataBlock* block = tqLogScanExec(pInfo->sContext->subType, pInfo->readHandle->tqReader, pInfo->readHandle->pFilterOutTbUid, &pInfo->pRes);
-        if(!block){
-          fetchVer++;
-          if (tqFetchLog(pInfo->readHandle->pWalReader, pInfo->sContext->withMeta, &fetchVer, &pInfo->pCkHead) < 0) {
-            return NULL;
-          }
-          pHead = &pInfo->pCkHead->head;
-          SSubmitReq* pCont = (SSubmitReq*)&pHead->body;
-          tqReaderSetDataMsg(pInfo->readHandle->tqReader, pCont, 0);
-        }
-        return block;
-      }
     }
   }
   return NULL;
@@ -1587,13 +1593,13 @@ static SSDataBlock* doRawScan(SOperatorInfo* pOperator) {
 static void destroyRawScanOperatorInfo(void* param, int32_t numOfOutput) {
   SStreamRawScanInfo* pRawScan = (SStreamRawScanInfo*)param;
   taosMemoryFreeClear(pRawScan->pCkHead);
-  if (pRawScan->readHandle->tqReader) {
+  if (pRawScan->tqReader) {
-    tqCloseReader(pRawScan->readHandle->tqReader);
+    tqCloseReader(pRawScan->tqReader);
   }
   blockDataFreeRes(&pRawScan->pRes);
   tsdbReaderClose(pRawScan->dataReader);
   destroySnapContext(pRawScan->sContext);
-  taosHashCleanup(pRawScan->readHandle->pFilterOutTbUid);
+  taosHashCleanup(pRawScan->pFilterOutTbUid);
   taosMemoryFree(pRawScan);
 }
 
@@ -1613,7 +1619,19 @@ SOperatorInfo* createRawScanOperatorInfo(SReadHandle* pHandle, SExecTaskInfo* pT
     return NULL;
   }
 
-  pInfo->readHandle = pHandle;
+  pInfo->pCkHead = taosMemoryCalloc(1, sizeof(SWalCkHead) + 2048);
+  if (pInfo->pCkHead == NULL) {
+    terrno = TSDB_CODE_QRY_OUT_OF_MEMORY;
+    return NULL;
+  }
+  pInfo->needFetchLog = true;
+  pInfo->hasDataInOneFetchVer = false;
+
+  pInfo->vnode = pHandle->vnode;
+  pInfo->pFilterOutTbUid = pHandle->pFilterOutTbUid;
+  pInfo->tqReader = pHandle->tqReader;
+  walSetReaderCapacity(pInfo->tqReader->pWalReader, 2048);
+
   pInfo->sContext = pHandle->sContext;
   pOperator->name = "RawStreamScanOperator";
 //  pOperator->blocking = false;

tests/test/c/tmq_taosx_ci.c

@@ -501,7 +501,8 @@ int main(int argc, char* argv[]) {
   if(argc == 3 && strcmp(argv[1], "-c") == 0) {
     strcpy(dir, argv[2]);
   }else{
-    strcpy(dir, "../../../sim/psim/cfg");
+//    strcpy(dir, "../../../sim/psim/cfg");
+    strcpy(dir, "/var/log");
   }
 
   printf("env init\n");