fix:send data batch if consume wal where subscribe db

source/dnode/vnode/src/inc/tq.h

@@ -144,8 +144,7 @@ int32_t tqScanData(STQ* pTq, const STqHandle* pHandle, SMqDataRsp* pRsp, STqOffs
 int32_t tqFetchLog(STQ* pTq, STqHandle* pHandle, int64_t* fetchOffset, SWalCkHead** pHeadWithCkSum, uint64_t reqId);
 
 // tqExec
-int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxRsp* pRsp);
-// int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SSubmitReq* pReq, STaosxRsp* pRsp);
+int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxRsp* pRsp, int32_t* totalRows);
 int32_t tqAddBlockDataToRsp(const SSDataBlock* pBlock, SMqDataRsp* pRsp, int32_t numOfCols, int8_t precision);
 int32_t tqSendDataRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqDataRsp* pRsp, int32_t type);
 int32_t tqPushDataRsp(STQ* pTq, STqPushEntry* pPushEntry);

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

@@ -596,8 +596,6 @@ static int32_t extractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq*
   }
 
   if (offset.type == TMQ_OFFSET__LOG) {
-
-//  if (offset.type == TMQ_OFFSET__LOG) {
     int64_t fetchVer = offset.version + 1;
     pCkHead = taosMemoryMalloc(sizeof(SWalCkHead) + 2048);
     if (pCkHead == NULL) {
@@ -605,9 +603,8 @@ static int32_t extractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq*
       terrno = TSDB_CODE_OUT_OF_MEMORY;
       return -1;
     }
-
     walSetReaderCapacity(pHandle->pWalReader, 2048);
-
+    int totalRows = 0;
     while (1) {
       // todo refactor: this is not correct.
       int32_t savedEpoch = atomic_load_32(&pHandle->epoch);
@@ -630,20 +627,39 @@ static int32_t extractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq*
       tqDebug("tmq poll: consumer:0x%" PRIx64 " (epoch %d) iter log, vgId:%d offset %" PRId64 " msgType %d", consumerId,
               pRequest->epoch, vgId, fetchVer, pHead->msgType);
 
-      if (pHead->msgType == TDMT_VND_SUBMIT) {
+      // process meta
+      if (pHead->msgType != TDMT_VND_SUBMIT) {
+        tqDebug("fetch meta msg, ver:%" PRId64 ", type:%s", pHead->version, TMSG_INFO(pHead->msgType));
+        tqOffsetResetToLog(&metaRsp.rspOffset, fetchVer);
+        metaRsp.resMsgType = pHead->msgType;
+        metaRsp.metaRspLen = pHead->bodyLen;
+        metaRsp.metaRsp = pHead->body;
+        if (tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp) < 0) {
+          code = -1;
+          taosMemoryFreeClear(pCkHead);
+          tDeleteSTaosxRsp(&taosxRsp);
+          return code;
+        }
+        code = 0;
+        taosMemoryFreeClear(pCkHead);
+        tDeleteSTaosxRsp(&taosxRsp);
+        return code;
+      }
+
+      // process data
       SPackedData submit = {
           .msgStr = POINTER_SHIFT(pHead->body, sizeof(SSubmitReq2Msg)),
           .msgLen = pHead->bodyLen - sizeof(SSubmitReq2Msg),
           .ver = pHead->version,
       };
 
-        if (tqTaosxScanLog(pTq, pHandle, submit, &taosxRsp) < 0) {
+      if (tqTaosxScanLog(pTq, pHandle, submit, &taosxRsp, &totalRows) < 0) {
         tqError("tmq poll: tqTaosxScanLog error %" PRId64 ", in vgId:%d, subkey %s", consumerId, vgId,
                 pRequest->subKey);
         return -1;
       }
 
-        if (taosxRsp.blockNum > 0) {
+      if (totalRows >= 4096 || taosxRsp.createTableNum > 0) {
         tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
         code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
         tDeleteSTaosxRsp(&taosxRsp);
@@ -652,26 +668,6 @@ static int32_t extractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq*
       } else {
         fetchVer++;
       }
-
-      } else {
-        /*A(pHandle->fetchMeta);*/
-        /*A(IS_META_MSG(pHead->msgType));*/
-        tqDebug("fetch meta msg, ver:%" PRId64 ", type:%s", pHead->version, TMSG_INFO(pHead->msgType));
-        tqOffsetResetToLog(&metaRsp.rspOffset, fetchVer);
-        metaRsp.resMsgType = pHead->msgType;
-        metaRsp.metaRspLen = pHead->bodyLen;
-        metaRsp.metaRsp = pHead->body;
-        if (tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp) < 0) {
-          code = -1;
-          taosMemoryFreeClear(pCkHead);
-          tDeleteSTaosxRsp(&taosxRsp);
-          return code;
-        }
-        code = 0;
-        taosMemoryFreeClear(pCkHead);
-        tDeleteSTaosxRsp(&taosxRsp);
-        return code;
-      }
     }
   }
 

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

@@ -230,23 +230,15 @@ int32_t tqScanTaosx(STQ* pTq, const STqHandle* pHandle, STaosxRsp* pRsp, SMqMeta
   return 0;
 }
 
-int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxRsp* pRsp) {
+int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxRsp* pRsp, int32_t* totalRows) {
   STqExecHandle* pExec = &pHandle->execHandle;
-  /*A(pExec->subType != TOPIC_SUB_TYPE__COLUMN);*/
-
   SArray* pBlocks = taosArrayInit(0, sizeof(SSDataBlock));
   SArray* pSchemas = taosArrayInit(0, sizeof(void*));
 
   if (pExec->subType == TOPIC_SUB_TYPE__TABLE) {
     STqReader* pReader = pExec->pExecReader;
-    /*tqReaderSetDataMsg(pReader, pReq, 0);*/
     tqReaderSetSubmitReq2(pReader, submit.msgStr, submit.msgLen, submit.ver);
     while (tqNextDataBlock2(pReader)) {
-      /*SSDataBlock block = {0};*/
-      /*if (tqRetrieveDataBlock(&block, pReader) < 0) {*/
-      /*if (terrno == TSDB_CODE_TQ_TABLE_SCHEMA_NOT_FOUND) continue;*/
-      /*}*/
-
       taosArrayClear(pBlocks);
       taosArrayClear(pSchemas);
       SSubmitTbData* pSubmitTbDataRet = NULL;
@@ -254,7 +246,6 @@ int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxR
         if (terrno == TSDB_CODE_TQ_TABLE_SCHEMA_NOT_FOUND) continue;
       }
       if (pRsp->withTbName) {
-        /*int64_t uid = pExec->pExecReader->msgIter.uid;*/
         int64_t uid = pExec->pExecReader->lastBlkUid;
         if (tqAddTbNameToRsp(pTq, uid, pRsp, taosArrayGetSize(pBlocks)) < 0) {
           taosArrayDestroyEx(pBlocks, (FDelete)blockDataFreeRes);
@@ -296,6 +287,7 @@ int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxR
         SSDataBlock* pBlock = taosArrayGet(pBlocks, i);
         tqAddBlockDataToRsp(pBlock, (SMqDataRsp*)pRsp, taosArrayGetSize(pBlock->pDataBlock),
                             pTq->pVnode->config.tsdbCfg.precision);
+        totalRows += pBlock->info.rows;
         blockDataFreeRes(pBlock);
         SSchemaWrapper* pSW = taosArrayGetP(pSchemas, i);
         taosArrayPush(pRsp->blockSchema, &pSW);
@@ -304,13 +296,8 @@ int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxR
     }
   } else if (pExec->subType == TOPIC_SUB_TYPE__DB) {
     STqReader* pReader = pExec->pExecReader;
-    /*tqReaderSetDataMsg(pReader, pReq, 0);*/
     tqReaderSetSubmitReq2(pReader, submit.msgStr, submit.msgLen, submit.ver);
     while (tqNextDataBlockFilterOut2(pReader, pExec->execDb.pFilterOutTbUid)) {
-      /*SSDataBlock block = {0};*/
-      /*if (tqRetrieveDataBlock(&block, pReader) < 0) {*/
-      /*if (terrno == TSDB_CODE_TQ_TABLE_SCHEMA_NOT_FOUND) continue;*/
-      /*}*/
       taosArrayClear(pBlocks);
       taosArrayClear(pSchemas);
       SSubmitTbData* pSubmitTbDataRet = NULL;
@@ -355,15 +342,11 @@ int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxR
 
         tEncoderClear(&encoder);
       }
-      /*tqAddBlockDataToRsp(&block, (SMqDataRsp*)pRsp, taosArrayGetSize(block.pDataBlock),*/
-      /*pTq->pVnode->config.tsdbCfg.precision);*/
-      /*blockDataFreeRes(&block);*/
-      /*tqAddBlockSchemaToRsp(pExec, (SMqDataRsp*)pRsp);*/
-      /*pRsp->blockNum++;*/
       for (int32_t i = 0; i < taosArrayGetSize(pBlocks); i++) {
         SSDataBlock* pBlock = taosArrayGet(pBlocks, i);
         tqAddBlockDataToRsp(pBlock, (SMqDataRsp*)pRsp, taosArrayGetSize(pBlock->pDataBlock),
                             pTq->pVnode->config.tsdbCfg.precision);
+        totalRows += pBlock->info.rows;
         blockDataFreeRes(pBlock);
         SSchemaWrapper* pSW = taosArrayGetP(pSchemas, i);
         taosArrayPush(pRsp->blockSchema, &pSW);
@@ -373,9 +356,5 @@ int32_t tqTaosxScanLog(STQ* pTq, STqHandle* pHandle, SPackedData submit, STaosxR
   }
   taosArrayDestroy(pBlocks);
   taosArrayDestroy(pSchemas);
-//  if (pRsp->blockNum == 0) {
-//    return -1;
-//  }
-
   return 0;
 }