/*
 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "trpc.h"
#include "query.h"
#include "tname.h"
#include "catalogInt.h"
#include "systable.h"
#include "tref.h"

int32_t ctgHandleBatchRsp(SCtgJob* pJob, SCtgTaskCallbackParam* cbParam, SDataBuf *pMsg, int32_t rspCode) {
  int32_t code = 0;
  SArray* pTaskId = cbParam->taskId;
  SCatalog* pCtg = pJob->pCtg;
  int32_t taskNum = taosArrayGetSize(pTaskId);
  SDataBuf taskMsg = *pMsg;
  int32_t offset = 0;
  int32_t msgNum = (TSDB_CODE_SUCCESS == rspCode && pMsg->pData && (pMsg->len > 0)) ? ntohl(*(int32_t*)pMsg->pData) : 0;
  ASSERT(taskNum == msgNum || 0 == msgNum);

  ctgDebug("QID:0x%" PRIx64 " ctg got batch %d rsp %s", pJob->queryId, cbParam->batchId, TMSG_INFO(cbParam->reqType + 1));

  offset += sizeof(msgNum);
  SBatchRsp rsp = {0};
  SHashObj* pBatchs = taosHashInit(taskNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), false, HASH_NO_LOCK);
  if (NULL == pBatchs) {
    ctgError("taosHashInit %d batch failed", taskNum);
    CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
  }
  
  for (int32_t i = 0; i < taskNum; ++i) {
    int32_t* taskId = taosArrayGet(pTaskId, i);
    SCtgTask *pTask = taosArrayGet(pJob->pTasks, *taskId);
    if (msgNum > 0) {
      rsp.reqType = ntohl(*(int32_t*)((char*)pMsg->pData + offset));
      offset += sizeof(rsp.reqType);
      rsp.msgLen = ntohl(*(int32_t*)((char*)pMsg->pData + offset));
      offset += sizeof(rsp.msgLen);
      rsp.rspCode = ntohl(*(int32_t*)((char*)pMsg->pData + offset));
      offset += sizeof(rsp.rspCode);
      rsp.msg = ((char*)pMsg->pData) + offset;
      offset += rsp.msgLen;
      
      taskMsg.msgType = rsp.reqType;
      taskMsg.pData = rsp.msg;
      taskMsg.len = rsp.msgLen;
    } else {
      rsp.reqType = -1;
      taskMsg.msgType = -1;
      taskMsg.pData = NULL;
      taskMsg.len = 0;
    }

    pTask->pBatchs = pBatchs;
    
    ctgDebug("QID:0x%" PRIx64 " ctg task %d start to handle rsp %s", pJob->queryId, pTask->taskId, TMSG_INFO(taskMsg.msgType + 1));
    
    (*gCtgAsyncFps[pTask->type].handleRspFp)(pTask, rsp.reqType, &taskMsg, (rsp.rspCode ? rsp.rspCode : rspCode));
  }

  CTG_ERR_JRET(ctgLaunchBatchs(pJob->pCtg, pJob, pBatchs));

_return:

  ctgFreeBatchs(pBatchs);
  CTG_RET(code);
}


int32_t ctgProcessRspMsg(void* out, int32_t reqType, char* msg, int32_t msgSize, int32_t rspCode, char* target) {
  int32_t code = 0;
  
  switch (reqType) {
    case TDMT_MND_QNODE_LIST: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for qnode list, error:%s", tstrerror(rspCode));
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process qnode list rsp failed, error:%s", tstrerror(rspCode));
        CTG_ERR_RET(code);
      }
      
      qDebug("Got qnode list from mnode, listNum:%d", (int32_t)taosArrayGetSize(out));
      break;
    }
    case TDMT_MND_DNODE_LIST: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for dnode list, error:%s", tstrerror(rspCode));
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process dnode list rsp failed, error:%s", tstrerror(rspCode));
        CTG_ERR_RET(code);
      }
      
      qDebug("Got dnode list from mnode, listNum:%d", (int32_t)taosArrayGetSize(*(SArray**)out));
      break;
    }
    case TDMT_MND_USE_DB: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for use db, error:%s, dbFName:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process use db rsp failed, error:%s, dbFName:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got db vgInfo from mnode, dbFName:%s", target);
      break;
    }
    case TDMT_MND_GET_DB_CFG: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for get db cfg, error:%s, db:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process get db cfg rsp failed, error:%s, db:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got db cfg from mnode, dbFName:%s", target);
      break;
    }
    case TDMT_MND_GET_INDEX: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for get index, error:%s, indexName:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process get index rsp failed, error:%s, indexName:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got index from mnode, indexName:%s", target);
      break;
    }
    case TDMT_MND_GET_TABLE_INDEX: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for get table index, error:%s, tbFName:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process get table index rsp failed, error:%s, tbFName:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got table index from mnode, tbFName:%s", target);
      break;
    }
    case TDMT_MND_RETRIEVE_FUNC: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for get udf, error:%s, funcName:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process get udf rsp failed, error:%s, funcName:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got udf from mnode, funcName:%s", target);
      break;
    }
    case TDMT_MND_GET_USER_AUTH: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for get user auth, error:%s, user:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process get user auth rsp failed, error:%s, user:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got user auth from mnode, user:%s", target);
      break;
    }
    case TDMT_MND_TABLE_META: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        if (CTG_TABLE_NOT_EXIST(rspCode)) {
          SET_META_TYPE_NULL(((STableMetaOutput*)out)->metaType);
          qDebug("stablemeta not exist in mnode, tbFName:%s", target);
          return TSDB_CODE_SUCCESS;
        }
        
        qError("error rsp for stablemeta from mnode, error:%s, tbFName:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process mnode stablemeta rsp failed, error:%s, tbFName:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got table meta from mnode, tbFName:%s", target);
      break;
    }
    case TDMT_VND_TABLE_META: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        if (CTG_TABLE_NOT_EXIST(rspCode)) {
          SET_META_TYPE_NULL(((STableMetaOutput*)out)->metaType);
          qDebug("tablemeta not exist in vnode, tbFName:%s", target);
          return TSDB_CODE_SUCCESS;
        }
      
        qError("error rsp for table meta from vnode, code:%s, tbFName:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process vnode tablemeta rsp failed, code:%s, tbFName:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got table meta from vnode, tbFName:%s", target);
      break;
    }
    case TDMT_VND_TABLE_CFG: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for table cfg from vnode, code:%s, tbFName:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process vnode tb cfg rsp failed, code:%s, tbFName:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got table cfg from vnode, tbFName:%s", target);
      break;
    }
    case TDMT_MND_TABLE_CFG: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for stb cfg from mnode, error:%s, tbFName:%s", tstrerror(rspCode), target);
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process mnode stb cfg rsp failed, error:%s, tbFName:%s", tstrerror(code), target);
        CTG_ERR_RET(code);
      }
      
      qDebug("Got stb cfg from mnode, tbFName:%s", target);
      break;
    }    
    case TDMT_MND_SERVER_VERSION: {
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("error rsp for svr ver from mnode, error:%s", tstrerror(rspCode));
        CTG_ERR_RET(rspCode);
      }
      
      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
      if (code) {
        qError("Process svr ver rsp failed, error:%s", tstrerror(code));
        CTG_ERR_RET(code);
      }
      
      qDebug("Got svr ver from mnode");
      break;
    }
    default:
      if (TSDB_CODE_SUCCESS != rspCode) {
        qError("Got error rsp, error:%s", tstrerror(rspCode));
        CTG_ERR_RET(rspCode);
      }
    
      qError("invalid req type %s", TMSG_INFO(reqType));
      return TSDB_CODE_APP_ERROR;
  }

  return TSDB_CODE_SUCCESS;
}


int32_t ctgHandleMsgCallback(void *param, SDataBuf *pMsg, int32_t rspCode) {
  SCtgTaskCallbackParam* cbParam = (SCtgTaskCallbackParam*)param;
  int32_t code = 0;
  SCtgJob* pJob = NULL;
  
  CTG_API_JENTER();

  pJob = taosAcquireRef(gCtgMgmt.jobPool, cbParam->refId);
  if (NULL == pJob) {
    qDebug("ctg job refId 0x%" PRIx64 " already dropped", cbParam->refId);
    goto _return;
  }

  SCatalog* pCtg = pJob->pCtg;

  if (TDMT_VND_BATCH_META == cbParam->reqType || TDMT_MND_BATCH_META == cbParam->reqType) {
    CTG_ERR_JRET(ctgHandleBatchRsp(pJob, cbParam, pMsg, rspCode));
  } else {
    int32_t *taskId = taosArrayGet(cbParam->taskId, 0);
    SCtgTask *pTask = taosArrayGet(pJob->pTasks, *taskId);

    qDebug("QID:0x%" PRIx64 " ctg task %d start to handle rsp %s", pJob->queryId, pTask->taskId, TMSG_INFO(cbParam->reqType + 1));

#if CTG_BATCH_FETCH
    SHashObj* pBatchs = taosHashInit(CTG_DEFAULT_BATCH_NUM, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), false, HASH_NO_LOCK);
    if (NULL == pBatchs) {
      ctgError("taosHashInit %d batch failed", CTG_DEFAULT_BATCH_NUM);
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    pTask->pBatchs = pBatchs;
#endif

    CTG_ERR_JRET((*gCtgAsyncFps[pTask->type].handleRspFp)(pTask, cbParam->reqType, pMsg, rspCode));

#if CTG_BATCH_FETCH
    CTG_ERR_JRET(ctgLaunchBatchs(pJob->pCtg, pJob, pBatchs));    
#endif    
  }
  
_return:

  taosMemoryFree(pMsg->pData);

  if (pJob) {
    taosReleaseRef(gCtgMgmt.jobPool, cbParam->refId);
  }

  CTG_API_LEAVE(code);
}


int32_t ctgMakeMsgSendInfo(SCtgJob* pJob, SArray* pTaskId, int32_t batchId, int32_t msgType, SMsgSendInfo **pMsgSendInfo) {
  int32_t       code = 0;
  SMsgSendInfo *msgSendInfo = taosMemoryCalloc(1, sizeof(SMsgSendInfo));
  if (NULL == msgSendInfo) {
    qError("calloc %d failed", (int32_t)sizeof(SMsgSendInfo));
    CTG_ERR_JRET(TSDB_CODE_QRY_OUT_OF_MEMORY);
  }

  SCtgTaskCallbackParam *param = taosMemoryCalloc(1, sizeof(SCtgTaskCallbackParam));
  if (NULL == param) {
    qError("calloc %d failed", (int32_t)sizeof(SCtgTaskCallbackParam));
    CTG_ERR_JRET(TSDB_CODE_QRY_OUT_OF_MEMORY);
  }

  param->reqType = msgType;
  param->queryId = pJob->queryId;
  param->refId = pJob->refId;
  param->taskId = pTaskId;
  param->batchId = batchId;

  msgSendInfo->param = param;
  msgSendInfo->paramFreeFp = ctgFreeMsgSendParam;
  msgSendInfo->fp = ctgHandleMsgCallback;

  *pMsgSendInfo = msgSendInfo;

  return TSDB_CODE_SUCCESS;

_return:

  taosArrayDestroy(pTaskId);
  destroySendMsgInfo(msgSendInfo);

  CTG_RET(code);
}

int32_t ctgAsyncSendMsg(SCatalog* pCtg, SRequestConnInfo *pConn, SCtgJob* pJob, SArray* pTaskId, 
                             int32_t batchId, char* dbFName, int32_t vgId, int32_t msgType, void *msg, uint32_t msgSize) {
  int32_t code = 0;
  SMsgSendInfo *pMsgSendInfo = NULL;
  CTG_ERR_JRET(ctgMakeMsgSendInfo(pJob, pTaskId, batchId, msgType, &pMsgSendInfo));

  ctgUpdateSendTargetInfo(pMsgSendInfo, msgType, dbFName, vgId);

  pMsgSendInfo->requestId = pConn->requestId;
  pMsgSendInfo->requestObjRefId = pConn->requestObjRefId;
  pMsgSendInfo->msgInfo.pData = msg;
  pMsgSendInfo->msgInfo.len = msgSize;
  pMsgSendInfo->msgInfo.handle = NULL;
  pMsgSendInfo->msgType = msgType;

  int64_t transporterId = 0;
  code = asyncSendMsgToServer(pConn->pTrans, &pConn->mgmtEps, &transporterId, pMsgSendInfo);
  pMsgSendInfo = NULL;
  if (code) {
    ctgError("asyncSendMsgToSever failed, error: %s", tstrerror(code));
    CTG_ERR_JRET(code);
  }

  ctgDebug("ctg req msg sent, reqId:0x%" PRIx64 ", msg type:%d, %s", pJob->queryId, msgType, TMSG_INFO(msgType));
  return TSDB_CODE_SUCCESS;

_return:

  if (pMsgSendInfo) {
    destroySendMsgInfo(pMsgSendInfo);
  }

  CTG_RET(code);
}

int32_t ctgAddBatch(SCatalog* pCtg, int32_t vgId, SRequestConnInfo *pConn, SCtgTask* pTask, int32_t msgType, void *msg, uint32_t msgSize) {
  int32_t code = 0;
  SHashObj* pBatchs = pTask->pBatchs;
  SCtgJob* pJob = pTask->pJob;
  SCtgBatch* pBatch = taosHashGet(pBatchs, &vgId, sizeof(vgId));
  int32_t taskNum = taosArrayGetSize(pTask->pJob->pTasks);
  SCtgBatch newBatch = {0};
  SBatchMsg req = {0};
  
  if (NULL == pBatch) {
    newBatch.pMsgs = taosArrayInit(taskNum, sizeof(SBatchMsg));
    newBatch.pTaskIds = taosArrayInit(taskNum, sizeof(int32_t));
    if (NULL == newBatch.pMsgs || NULL == newBatch.pTaskIds) {
      CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
    }
    
    newBatch.conn = *pConn;

    req.msgType = msgType;
    req.msgLen = msgSize;
    req.msg = msg;
    if (NULL == taosArrayPush(newBatch.pMsgs, &req)) {
      CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
    }
    if (NULL == taosArrayPush(newBatch.pTaskIds, &pTask->taskId)) {
      CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
    }
    newBatch.msgSize = sizeof(SBatchReq) + sizeof(req) + msgSize - POINTER_BYTES;

    if (vgId > 0) {
      if (TDMT_VND_TABLE_CFG == msgType) {
        SCtgTbCfgCtx* ctx = (SCtgTbCfgCtx*)pTask->taskCtx;
        tNameGetFullDbName(ctx->pName, newBatch.dbFName);
      } else if (TDMT_VND_TABLE_META == msgType) {
        SCtgTbMetaCtx* ctx = (SCtgTbMetaCtx*)pTask->taskCtx;
        tNameGetFullDbName(ctx->pName, newBatch.dbFName);
      } else {
        ctgError("invalid vnode msgType %d", msgType);
        CTG_ERR_JRET(TSDB_CODE_APP_ERROR);
      }
    }

    newBatch.msgType = (vgId > 0) ? TDMT_VND_BATCH_META : TDMT_MND_BATCH_META;
    newBatch.batchId = atomic_add_fetch_32(&pJob->batchId, 1);

    if (0 != taosHashPut(pBatchs, &vgId, sizeof(vgId), &newBatch, sizeof(newBatch))) {
      CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
    }

    ctgDebug("task %d %s req added to batch %d, target vgId %d", pTask->taskId, TMSG_INFO(msgType), newBatch.batchId, vgId);

    return TSDB_CODE_SUCCESS;
  }

  req.msgType = msgType;
  req.msgLen = msgSize;
  req.msg = msg;
  if (NULL == taosArrayPush(pBatch->pMsgs, &req)) {
    CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
  }
  if (NULL == taosArrayPush(pBatch->pTaskIds, &pTask->taskId)) {
    CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
  }
  pBatch->msgSize += sizeof(req) + msgSize - POINTER_BYTES;

  if (vgId > 0) {
    if (TDMT_VND_TABLE_CFG == msgType) {
      SCtgTbCfgCtx* ctx = (SCtgTbCfgCtx*)pTask->taskCtx;
      tNameGetFullDbName(ctx->pName, newBatch.dbFName);
    } else if (TDMT_VND_TABLE_META == msgType) {
      SCtgTbMetaCtx* ctx = (SCtgTbMetaCtx*)pTask->taskCtx;
      tNameGetFullDbName(ctx->pName, newBatch.dbFName);
    } else {
      ctgError("invalid vnode msgType %d", msgType);
      CTG_ERR_JRET(TSDB_CODE_APP_ERROR);
    }
  }

  ctgDebug("task %d %s req added to batch %d, target vgId %d", pTask->taskId, TMSG_INFO(msgType), pBatch->batchId, vgId);

  return TSDB_CODE_SUCCESS;

_return:

  ctgFreeBatch(&newBatch);
  taosMemoryFree(msg);
  
  return code;
}

int32_t ctgBuildBatchReqMsg(SCtgBatch* pBatch, int32_t vgId, void** msg) {
  *msg = taosMemoryMalloc(pBatch->msgSize);
  if (NULL == (*msg)) {
    CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
  }

  int32_t offset = 0;
  int32_t num = taosArrayGetSize(pBatch->pMsgs);
  SBatchReq *pBatchReq = (SBatchReq*)(*msg);

  pBatchReq->header.vgId = htonl(vgId);
  pBatchReq->msgNum = htonl(num);
  offset += sizeof(SBatchReq);
  
  for (int32_t i = 0; i < num; ++i) {
    SBatchMsg* pReq = taosArrayGet(pBatch->pMsgs, i);
    *(int32_t*)((char*)(*msg) + offset) = htonl(pReq->msgType);
    offset += sizeof(pReq->msgType);
    *(int32_t*)((char*)(*msg) + offset) = htonl(pReq->msgLen);
    offset += sizeof(pReq->msgLen);
    memcpy((char*)(*msg) + offset, pReq->msg, pReq->msgLen);
    offset += pReq->msgLen;
  }

  ASSERT(pBatch->msgSize == offset);

  qDebug("batch req %d to vg %d msg built with %d meta reqs", pBatch->batchId, vgId, num);

  return TSDB_CODE_SUCCESS;
}

int32_t ctgLaunchBatchs(SCatalog* pCtg, SCtgJob *pJob, SHashObj* pBatchs) {
  int32_t code = 0;
  void* msg = NULL;
  void* p = taosHashIterate(pBatchs, NULL);
  while (NULL != p) {
    size_t len = 0;
    int32_t* vgId = taosHashGetKey(p, &len);
    SCtgBatch* pBatch = (SCtgBatch*)p;

    ctgDebug("QID:0x%" PRIx64 " ctg start to launch batch %d", pJob->queryId, pBatch->batchId);
    
    CTG_ERR_JRET(ctgBuildBatchReqMsg(pBatch, *vgId, &msg));
    code = ctgAsyncSendMsg(pCtg, &pBatch->conn, pJob, pBatch->pTaskIds, pBatch->batchId, 
                           pBatch->dbFName, *vgId, pBatch->msgType, msg, pBatch->msgSize);
    pBatch->pTaskIds = NULL;
    CTG_ERR_JRET(code);
    
    p = taosHashIterate(pBatchs, p);
  }

  return TSDB_CODE_SUCCESS;

_return:

  if (p) {
    taosHashCancelIterate(pBatchs, p);
  }
  taosMemoryFree(msg);
  
  CTG_RET(code);
}


int32_t ctgGetQnodeListFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, SArray *out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_QNODE_LIST;
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  ctgDebug("try to get qnode list from mnode, mgmtEpInUse:%d", pConn->mgmtEps.inUse);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](NULL, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build qnode list msg failed, error:%s", tstrerror(code));
    CTG_ERR_RET(code);
  }

  if (pTask) {
    void* pOut = taosArrayInit(4, sizeof(SQueryNodeLoad));
    if (NULL == pOut) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, pOut, NULL));

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, NULL));

  rpcFreeCont(rpcRsp.pCont);

  return TSDB_CODE_SUCCESS;
}

int32_t ctgGetDnodeListFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, SArray **out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_DNODE_LIST;
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  ctgDebug("try to get dnode list from mnode, mgmtEpInUse:%d", pConn->mgmtEps.inUse);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](NULL, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build dnode list msg failed, error:%s", tstrerror(code));
    CTG_ERR_RET(code);
  }

  if (pTask) {
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, NULL, NULL));

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, NULL));

  rpcFreeCont(rpcRsp.pCont);

  return TSDB_CODE_SUCCESS;
}


int32_t ctgGetDBVgInfoFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, SBuildUseDBInput *input, SUseDbOutput *out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_USE_DB;
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  ctgDebug("try to get db vgInfo from mnode, dbFName:%s", input->db);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](input, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build use db msg failed, code:%x, db:%s", code, input->db);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    void* pOut = taosMemoryCalloc(1, sizeof(SUseDbOutput));
    if (NULL == pOut) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, pOut, input->db));

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, input->db));
  
  rpcFreeCont(rpcRsp.pCont);
  
  return TSDB_CODE_SUCCESS;
}

int32_t ctgGetDBCfgFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const char *dbFName, SDbCfgInfo *out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_GET_DB_CFG;
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  ctgDebug("try to get db cfg from mnode, dbFName:%s", dbFName);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)]((void *)dbFName, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build get db cfg msg failed, code:%x, db:%s", code, dbFName);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    void* pOut = taosMemoryCalloc(1, sizeof(SDbCfgInfo));
    if (NULL == pOut) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, pOut, (char*)dbFName));

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = TDMT_MND_GET_DB_CFG,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, (char*)dbFName));

  rpcFreeCont(rpcRsp.pCont);

  return TSDB_CODE_SUCCESS;
}

int32_t ctgGetIndexInfoFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const char *indexName, SIndexInfo *out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_GET_INDEX;
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  ctgDebug("try to get index from mnode, indexName:%s", indexName);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)]((void *)indexName, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build get index msg failed, code:%x, db:%s", code, indexName);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    void* pOut = taosMemoryCalloc(1, sizeof(SIndexInfo));
    if (NULL == pOut) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, pOut, (char*)indexName));

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else    
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, (char*)indexName));

  rpcFreeCont(rpcRsp.pCont);
  
  return TSDB_CODE_SUCCESS;
}

int32_t ctgGetTbIndexFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, SName *name, STableIndex* out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_GET_TABLE_INDEX;
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;
  char tbFName[TSDB_TABLE_FNAME_LEN];
  tNameExtractFullName(name, tbFName);

  ctgDebug("try to get tb index from mnode, tbFName:%s", tbFName);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)]((void *)tbFName, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build get index msg failed, code:%s, tbFName:%s", tstrerror(code), tbFName);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    void* pOut = taosMemoryCalloc(1, sizeof(STableIndex));
    if (NULL == pOut) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, pOut, (char*)tbFName));

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else        
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, (char*)tbFName));

  rpcFreeCont(rpcRsp.pCont);
  
  return TSDB_CODE_SUCCESS;
}

int32_t ctgGetUdfInfoFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const char *funcName, SFuncInfo *out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_RETRIEVE_FUNC;
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  ctgDebug("try to get udf info from mnode, funcName:%s", funcName);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)]((void *)funcName, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build get udf msg failed, code:%x, db:%s", code, funcName);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    void* pOut = taosMemoryCalloc(1, sizeof(SFuncInfo));
    if (NULL == pOut) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, pOut, (char*)funcName));

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, (char*)funcName));

  rpcFreeCont(rpcRsp.pCont);

  return TSDB_CODE_SUCCESS;
}

int32_t ctgGetUserDbAuthFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const char *user, SGetUserAuthRsp *out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_GET_USER_AUTH;
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  ctgDebug("try to get user auth from mnode, user:%s", user);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)]((void *)user, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build get user auth msg failed, code:%x, db:%s", code, user);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    void* pOut = taosMemoryCalloc(1, sizeof(SGetUserAuthRsp));
    if (NULL == pOut) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, pOut, (char*)user));

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else    
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, (char*)user));

  rpcFreeCont(rpcRsp.pCont);
  
  return TSDB_CODE_SUCCESS;
}


int32_t ctgGetTbMetaFromMnodeImpl(SCatalog* pCtg, SRequestConnInfo *pConn, char *dbFName, char* tbName, STableMetaOutput* out, SCtgTask* pTask) {
  SBuildTableInput bInput = {.vgId = 0, .dbFName = dbFName, .tbName = tbName};
  char *msg = NULL;
  SEpSet *pVnodeEpSet = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_TABLE_META;
  char tbFName[TSDB_TABLE_FNAME_LEN];
  sprintf(tbFName, "%s.%s", dbFName, tbName);
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  ctgDebug("try to get table meta from mnode, tbFName:%s", tbFName);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](&bInput, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build mnode stablemeta msg failed, code:%x", code);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    void* pOut = taosMemoryCalloc(1, sizeof(STableMetaOutput));
    if (NULL == pOut) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, pOut, tbFName));
#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else    
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }

  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);
  
  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, tbFName));

  rpcFreeCont(rpcRsp.pCont);

  return TSDB_CODE_SUCCESS;
}

int32_t ctgGetTbMetaFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, STableMetaOutput* out, SCtgTask* pTask) {
  char dbFName[TSDB_DB_FNAME_LEN];
  tNameGetFullDbName(pTableName, dbFName);

  return ctgGetTbMetaFromMnodeImpl(pCtg, pConn, dbFName, (char *)pTableName->tname, out, pTask);
}

int32_t ctgGetTbMetaFromVnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, SVgroupInfo *vgroupInfo, STableMetaOutput* out, SCtgTask* pTask) {
  char dbFName[TSDB_DB_FNAME_LEN];
  tNameGetFullDbName(pTableName, dbFName);
  int32_t reqType = TDMT_VND_TABLE_META;
  char tbFName[TSDB_TABLE_FNAME_LEN];
  sprintf(tbFName, "%s.%s", dbFName, pTableName->tname);
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  SEp* pEp = &vgroupInfo->epSet.eps[vgroupInfo->epSet.inUse];
  ctgDebug("try to get table meta from vnode, vgId:%d, ep num:%d, ep %s:%d, tbFName:%s", 
           vgroupInfo->vgId, vgroupInfo->epSet.numOfEps, pEp->fqdn, pEp->port, tbFName);

  SBuildTableInput bInput = {.vgId = vgroupInfo->vgId, .dbFName = dbFName, .tbName = (char *)tNameGetTableName(pTableName)};
  char *msg = NULL;
  int32_t msgLen = 0;

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](&bInput, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build vnode tablemeta msg failed, code:%x, tbFName:%s", code, tbFName);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    void* pOut = taosMemoryCalloc(1, sizeof(STableMetaOutput));
    if (NULL == pOut) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, pOut, tbFName));

    SRequestConnInfo vConn = {.pTrans = pConn->pTrans, 
                             .requestId = pConn->requestId,
                             .requestObjRefId = pConn->requestObjRefId,
                             .mgmtEps = vgroupInfo->epSet};

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, vgroupInfo->vgId, &vConn, pTask, reqType, msg, msgLen));
#else      
    SCtgTbMetaCtx* ctx = (SCtgTbMetaCtx*)pTask->taskCtx;
    char dbFName[TSDB_DB_FNAME_LEN];
    tNameGetFullDbName(ctx->pName, dbFName);
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);

    CTG_RET(ctgAsyncSendMsg(pCtg, &vConn, pTask->pJob, pTaskId, -1, dbFName, ctx->vgId, reqType, msg, msgLen));    
#endif    
  }

  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &vgroupInfo->epSet, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, tbFName));  

  rpcFreeCont(rpcRsp.pCont);

  return TSDB_CODE_SUCCESS;
}

int32_t ctgGetTableCfgFromVnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, SVgroupInfo *vgroupInfo, STableCfg **out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_VND_TABLE_CFG;
  char tbFName[TSDB_TABLE_FNAME_LEN];
  tNameExtractFullName(pTableName, tbFName);
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;
  char dbFName[TSDB_DB_FNAME_LEN];
  tNameGetFullDbName(pTableName, dbFName);
  SBuildTableInput bInput = {.vgId = vgroupInfo->vgId, .dbFName = dbFName, .tbName = (char*)pTableName->tname};

  SEp* pEp = &vgroupInfo->epSet.eps[vgroupInfo->epSet.inUse];
  ctgDebug("try to get table cfg from vnode, vgId:%d, ep num:%d, ep %s:%d, tbFName:%s", 
           vgroupInfo->vgId, vgroupInfo->epSet.numOfEps, pEp->fqdn, pEp->port, tbFName);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](&bInput, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build get tb cfg msg failed, code:%s, tbFName:%s", tstrerror(code), tbFName);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, NULL, (char*)tbFName));

    SRequestConnInfo vConn = {.pTrans = pConn->pTrans, 
                             .requestId = pConn->requestId,
                             .requestObjRefId = pConn->requestObjRefId,
                             .mgmtEps = vgroupInfo->epSet};    
#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, vgroupInfo->vgId, &vConn, pTask, reqType, msg, msgLen));
#else
    SCtgTbCfgCtx* ctx = (SCtgTbCfgCtx*)pTask->taskCtx;
    char dbFName[TSDB_DB_FNAME_LEN];
    tNameGetFullDbName(ctx->pName, dbFName);
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, &vConn, pTask->pJob, pTaskId, -1, dbFName, ctx->pVgInfo->vgId, reqType, msg, msgLen));
#endif    
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &vgroupInfo->epSet, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, (char*)tbFName));

  rpcFreeCont(rpcRsp.pCont);
  
  return TSDB_CODE_SUCCESS;
}


int32_t ctgGetTableCfgFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, STableCfg **out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_TABLE_CFG;
  char tbFName[TSDB_TABLE_FNAME_LEN];
  tNameExtractFullName(pTableName, tbFName);
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;
  char dbFName[TSDB_DB_FNAME_LEN];
  tNameGetFullDbName(pTableName, dbFName);
  SBuildTableInput bInput = {.vgId = 0, .dbFName = dbFName, .tbName = (char*)pTableName->tname};

  ctgDebug("try to get table cfg from mnode, tbFName:%s", tbFName);

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](&bInput, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build get tb cfg msg failed, code:%s, tbFName:%s", tstrerror(code), tbFName);
    CTG_ERR_RET(code);
  }

  if (pTask) {
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, NULL, (char*)tbFName));
#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else    
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, (char*)tbFName));

  rpcFreeCont(rpcRsp.pCont);
  
  return TSDB_CODE_SUCCESS;
}

int32_t ctgGetSvrVerFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, char **out, SCtgTask* pTask) {
  char *msg = NULL;
  int32_t msgLen = 0;
  int32_t reqType = TDMT_MND_SERVER_VERSION;
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

  qDebug("try to get svr ver from mnode");

  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](NULL, &msg, 0, &msgLen, mallocFp);
  if (code) {
    ctgError("Build get svr ver msg failed, code:%s", tstrerror(code));
    CTG_ERR_RET(code);
  }

  if (pTask) {
    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, NULL, NULL));

#if CTG_BATCH_FETCH
    CTG_RET(ctgAddBatch(pCtg, 0, pConn, pTask, reqType, msg, msgLen));
#else    
    SArray* pTaskId = taosArrayInit(1, sizeof(int32_t));
    if (NULL == pTaskId) {
      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
    }
    taosArrayPush(pTaskId, &pTask->taskId);
    
    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask->pJob, pTaskId, -1, NULL, 0, reqType, msg, msgLen));
#endif
  }
  
  SRpcMsg rpcMsg = {
      .msgType = reqType,
      .pCont   = msg,
      .contLen = msgLen,
  };

  SRpcMsg rpcRsp = {0};
  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);

  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, NULL));

  rpcFreeCont(rpcRsp.pCont);
  
  return TSDB_CODE_SUCCESS;
}


