vnodeSvr.c 24.4 KB
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/*
 * 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/>.
 */

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#include "vnd.h"
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static int vnodeProcessCreateStbReq(SVnode *pVnode, int64_t version, void *pReq, int len, SRpcMsg *pRsp);
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static int vnodeProcessAlterStbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp);
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static int vnodeProcessDropStbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp);
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static int vnodeProcessCreateTbReq(SVnode *pVnode, int64_t version, void *pReq, int len, SRpcMsg *pRsp);
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static int vnodeProcessAlterTbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp);
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static int vnodeProcessDropTbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp);
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static int vnodeProcessSubmitReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp);
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static int vnodeProcessCreateTSmaReq(SVnode *pVnode, int64_t version, void *pReq, int len, SRpcMsg *pRsp);
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int32_t vnodePreprocessReq(SVnode *pVnode, SRpcMsg *pMsg) {
  SDecoder dc = {0};
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  switch (pMsg->msgType) {
    case TDMT_VND_CREATE_TABLE: {
      int64_t ctime = taosGetTimestampMs();
      int32_t nReqs;

      tDecoderInit(&dc, (uint8_t *)pMsg->pCont + sizeof(SMsgHead), pMsg->contLen - sizeof(SMsgHead));
      tStartDecode(&dc);

      tDecodeI32v(&dc, &nReqs);
      for (int32_t iReq = 0; iReq < nReqs; iReq++) {
        tb_uid_t uid = tGenIdPI64();
        tStartDecode(&dc);

        tDecodeI32v(&dc, NULL);
        *(int64_t *)(dc.data + dc.pos) = uid;
        *(int64_t *)(dc.data + dc.pos + 8) = ctime;

        tEndDecode(&dc);
      }

      tEndDecode(&dc);
      tDecoderClear(&dc);
    } break;
    case TDMT_VND_SUBMIT: {
      SSubmitMsgIter msgIter = {0};
      SSubmitReq    *pSubmitReq = (SSubmitReq *)pMsg->pCont;
      SSubmitBlk    *pBlock = NULL;
      int64_t        ctime = taosGetTimestampMs();
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      tb_uid_t       uid;
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      tInitSubmitMsgIter(pSubmitReq, &msgIter);

      for (;;) {
        tGetSubmitMsgNext(&msgIter, &pBlock);
        if (pBlock == NULL) break;

        if (msgIter.schemaLen > 0) {
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          uid = tGenIdPI64();

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          tDecoderInit(&dc, pBlock->data, msgIter.schemaLen);
          tStartDecode(&dc);

          tDecodeI32v(&dc, NULL);
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          *(int64_t *)(dc.data + dc.pos) = uid;
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          *(int64_t *)(dc.data + dc.pos + 8) = ctime;
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          pBlock->uid = htobe64(uid);
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          tEndDecode(&dc);
          tDecoderClear(&dc);
        }
      }

    } break;
    default:
      break;
  }
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  return 0;
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}

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int vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg *pRsp) {
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  void *ptr = NULL;
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  void *pReq;
  int   len;
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  int   ret;
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  vTrace("vgId:%d start to process write request %s, version %" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType),
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         version);
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  pVnode->state.applied = version;

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  // skip header
  pReq = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
  len = pMsg->contLen - sizeof(SMsgHead);
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  switch (pMsg->msgType) {
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    /* META */
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    case TDMT_VND_CREATE_STB:
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      if (vnodeProcessCreateStbReq(pVnode, version, pReq, len, pRsp) < 0) goto _err;
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      break;
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    case TDMT_VND_ALTER_STB:
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      if (vnodeProcessAlterStbReq(pVnode, version, pReq, len, pRsp) < 0) goto _err;
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      break;
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    case TDMT_VND_DROP_STB:
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      if (vnodeProcessDropStbReq(pVnode, version, pReq, len, pRsp) < 0) goto _err;
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      break;
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    case TDMT_VND_CREATE_TABLE:
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      if (vnodeProcessCreateTbReq(pVnode, version, pReq, len, pRsp) < 0) goto _err;
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      break;
    case TDMT_VND_ALTER_TABLE:
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      if (vnodeProcessAlterTbReq(pVnode, version, pReq, len, pRsp) < 0) goto _err;
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      break;
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    case TDMT_VND_DROP_TABLE:
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      if (vnodeProcessDropTbReq(pVnode, version, pReq, len, pRsp) < 0) goto _err;
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      break;
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    case TDMT_VND_CREATE_SMA: {
      if (vnodeProcessCreateTSmaReq(pVnode, version, pReq, len, pRsp) < 0) goto _err;
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    } break;
    /* TSDB */
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    case TDMT_VND_SUBMIT:
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      if (vnodeProcessSubmitReq(pVnode, version, pMsg->pCont, pMsg->contLen, pRsp) < 0) goto _err;
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      break;
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    /* TQ */
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    case TDMT_VND_MQ_VG_CHANGE:
      if (tqProcessVgChangeReq(pVnode->pTq, POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead)),
                               pMsg->contLen - sizeof(SMsgHead)) < 0) {
        // TODO: handle error
      }
      break;
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    case TDMT_VND_MQ_VG_DELETE:
      if (tqProcessVgDeleteReq(pVnode->pTq, pMsg->pCont, pMsg->contLen) < 0) {
        // TODO: handle error
      }
      break;
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    case TDMT_VND_TASK_DEPLOY: {
      if (tqProcessTaskDeploy(pVnode->pTq, POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead)),
                              pMsg->contLen - sizeof(SMsgHead)) < 0) {
      }
    } break;
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    case TDMT_VND_ALTER_VNODE:
      break;
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    default:
      ASSERT(0);
      break;
  }

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  vDebug("vgId:%d process %s request success, version: %" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType), version);
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  if (tqPushMsg(pVnode->pTq, pMsg->pCont, pMsg->contLen, pMsg->msgType, version) < 0) {
    vError("vgId:%d failed to push msg to TQ since %s", TD_VID(pVnode), tstrerror(terrno));
    return -1;
  }

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  // commit if need
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  if (vnodeShouldCommit(pVnode)) {
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    vInfo("vgId:%d commit at version %" PRId64, TD_VID(pVnode), version);
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    // commit current change
    vnodeCommit(pVnode);

    // start a new one
    vnodeBegin(pVnode);
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  }

  return 0;
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_err:
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  vDebug("vgId:%d process %s request failed since %s, version: %" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType),
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         tstrerror(terrno), version);
  return -1;
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}

int vnodeProcessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg) {
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  vTrace("message in vnode query queue is processing");
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  SReadHandle handle = {.meta = pVnode->pMeta, .config = &pVnode->config, .vnode = pVnode, .pMsgCb = &pVnode->msgCb};
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  switch (pMsg->msgType) {
    case TDMT_VND_QUERY:
      return qWorkerProcessQueryMsg(&handle, pVnode->pQuery, pMsg);
    case TDMT_VND_QUERY_CONTINUE:
      return qWorkerProcessCQueryMsg(&handle, pVnode->pQuery, pMsg);
    default:
      vError("unknown msg type:%d in query queue", pMsg->msgType);
      return TSDB_CODE_VND_APP_ERROR;
  }
}

int vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo) {
  vTrace("message in fetch queue is processing");
  char   *msgstr = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
  int32_t msgLen = pMsg->contLen - sizeof(SMsgHead);
  switch (pMsg->msgType) {
    case TDMT_VND_FETCH:
      return qWorkerProcessFetchMsg(pVnode, pVnode->pQuery, pMsg);
    case TDMT_VND_FETCH_RSP:
      return qWorkerProcessFetchRsp(pVnode, pVnode->pQuery, pMsg);
    case TDMT_VND_RES_READY:
      return qWorkerProcessReadyMsg(pVnode, pVnode->pQuery, pMsg);
    case TDMT_VND_TASKS_STATUS:
      return qWorkerProcessStatusMsg(pVnode, pVnode->pQuery, pMsg);
    case TDMT_VND_CANCEL_TASK:
      return qWorkerProcessCancelMsg(pVnode, pVnode->pQuery, pMsg);
    case TDMT_VND_DROP_TASK:
      return qWorkerProcessDropMsg(pVnode, pVnode->pQuery, pMsg);
    case TDMT_VND_TABLE_META:
      return vnodeGetTableMeta(pVnode, pMsg);
    case TDMT_VND_CONSUME:
      return tqProcessPollReq(pVnode->pTq, pMsg, pInfo->workerId);
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    case TDMT_VND_TASK_RUN: {
      int32_t code = tqProcessTaskRunReq(pVnode->pTq, pMsg);
      pMsg->pCont = NULL;
      return code;
    }
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    case TDMT_VND_TASK_DISPATCH:
      return tqProcessTaskDispatchReq(pVnode->pTq, pMsg);
    case TDMT_VND_TASK_RECOVER:
      return tqProcessTaskRecoverReq(pVnode->pTq, pMsg);
    case TDMT_VND_TASK_DISPATCH_RSP:
      return tqProcessTaskDispatchRsp(pVnode->pTq, pMsg);
    case TDMT_VND_TASK_RECOVER_RSP:
      return tqProcessTaskRecoverRsp(pVnode->pTq, pMsg);

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    case TDMT_VND_QUERY_HEARTBEAT:
      return qWorkerProcessHbMsg(pVnode, pVnode->pQuery, pMsg);
    default:
      vError("unknown msg type:%d in fetch queue", pMsg->msgType);
      return TSDB_CODE_VND_APP_ERROR;
  }
}

// TODO: remove the function
void smaHandleRes(void *pVnode, int64_t smaId, const SArray *data) {
  // TODO

  // blockDebugShowData(data);
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  tdProcessTSmaInsert(((SVnode *)pVnode)->pSma, smaId, (const char *)data);
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}

int vnodeProcessSyncReq(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
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  int32_t ret = TAOS_SYNC_PROPOSE_OTHER_ERROR;
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  if (syncEnvIsStart()) {
    SSyncNode *pSyncNode = syncNodeAcquire(pVnode->sync);
    assert(pSyncNode != NULL);
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    ESyncState state = syncGetMyRole(pVnode->sync);
    SyncTerm   currentTerm = syncGetMyTerm(pVnode->sync);
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    SMsgHead *pHead = pMsg->pCont;
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    char  logBuf[512];
    char *syncNodeStr = sync2SimpleStr(pVnode->sync);
    snprintf(logBuf, sizeof(logBuf), "==vnodeProcessSyncReq== msgType:%d, syncNode: %s", pMsg->msgType, syncNodeStr);
    syncRpcMsgLog2(logBuf, pMsg);
    taosMemoryFree(syncNodeStr);
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    SRpcMsg *pRpcMsg = pMsg;
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    if (pRpcMsg->msgType == TDMT_VND_SYNC_TIMEOUT) {
      SyncTimeout *pSyncMsg = syncTimeoutFromRpcMsg2(pRpcMsg);
      assert(pSyncMsg != NULL);
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      ret = syncNodeOnTimeoutCb(pSyncNode, pSyncMsg);
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      syncTimeoutDestroy(pSyncMsg);
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    } else if (pRpcMsg->msgType == TDMT_VND_SYNC_PING) {
      SyncPing *pSyncMsg = syncPingFromRpcMsg2(pRpcMsg);
      assert(pSyncMsg != NULL);
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      ret = syncNodeOnPingCb(pSyncNode, pSyncMsg);
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      syncPingDestroy(pSyncMsg);
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    } else if (pRpcMsg->msgType == TDMT_VND_SYNC_PING_REPLY) {
      SyncPingReply *pSyncMsg = syncPingReplyFromRpcMsg2(pRpcMsg);
      assert(pSyncMsg != NULL);
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      ret = syncNodeOnPingReplyCb(pSyncNode, pSyncMsg);
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      syncPingReplyDestroy(pSyncMsg);
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    } else if (pRpcMsg->msgType == TDMT_VND_SYNC_CLIENT_REQUEST) {
      SyncClientRequest *pSyncMsg = syncClientRequestFromRpcMsg2(pRpcMsg);
      assert(pSyncMsg != NULL);
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      ret = syncNodeOnClientRequestCb(pSyncNode, pSyncMsg);
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      syncClientRequestDestroy(pSyncMsg);
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    } else if (pRpcMsg->msgType == TDMT_VND_SYNC_REQUEST_VOTE) {
      SyncRequestVote *pSyncMsg = syncRequestVoteFromRpcMsg2(pRpcMsg);
      assert(pSyncMsg != NULL);
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      ret = syncNodeOnRequestVoteCb(pSyncNode, pSyncMsg);
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      syncRequestVoteDestroy(pSyncMsg);
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    } else if (pRpcMsg->msgType == TDMT_VND_SYNC_REQUEST_VOTE_REPLY) {
      SyncRequestVoteReply *pSyncMsg = syncRequestVoteReplyFromRpcMsg2(pRpcMsg);
      assert(pSyncMsg != NULL);
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      ret = syncNodeOnRequestVoteReplyCb(pSyncNode, pSyncMsg);
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      syncRequestVoteReplyDestroy(pSyncMsg);
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    } else if (pRpcMsg->msgType == TDMT_VND_SYNC_APPEND_ENTRIES) {
      SyncAppendEntries *pSyncMsg = syncAppendEntriesFromRpcMsg2(pRpcMsg);
      assert(pSyncMsg != NULL);
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      ret = syncNodeOnAppendEntriesCb(pSyncNode, pSyncMsg);
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      syncAppendEntriesDestroy(pSyncMsg);
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    } else if (pRpcMsg->msgType == TDMT_VND_SYNC_APPEND_ENTRIES_REPLY) {
      SyncAppendEntriesReply *pSyncMsg = syncAppendEntriesReplyFromRpcMsg2(pRpcMsg);
      assert(pSyncMsg != NULL);

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      ret = syncNodeOnAppendEntriesReplyCb(pSyncNode, pSyncMsg);
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      syncAppendEntriesReplyDestroy(pSyncMsg);
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    } else {
      vError("==vnodeProcessSyncReq== error msg type:%d", pRpcMsg->msgType);
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      ret = TAOS_SYNC_PROPOSE_OTHER_ERROR;
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    }
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    syncNodeRelease(pSyncNode);
  } else {
    vError("==vnodeProcessSyncReq== error syncEnv stop");
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    ret = TAOS_SYNC_PROPOSE_OTHER_ERROR;
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  }
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  return ret;
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}

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static int vnodeProcessCreateStbReq(SVnode *pVnode, int64_t version, void *pReq, int len, SRpcMsg *pRsp) {
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  SVCreateStbReq req = {0};
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  SDecoder       coder;
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  pRsp->msgType = TDMT_VND_CREATE_STB_RSP;
  pRsp->code = TSDB_CODE_SUCCESS;
  pRsp->pCont = NULL;
  pRsp->contLen = 0;

  // decode and process req
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  tDecoderInit(&coder, pReq, len);
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  if (tDecodeSVCreateStbReq(&coder, &req) < 0) {
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    pRsp->code = terrno;
    goto _err;
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  }

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  if (metaCreateSTable(pVnode->pMeta, version, &req) < 0) {
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    pRsp->code = terrno;
    goto _err;
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  }

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  tdProcessRSmaCreate(pVnode->pSma, pVnode->pMeta, &req, &pVnode->msgCb);
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  tDecoderClear(&coder);
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  return 0;
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_err:
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  tDecoderClear(&coder);
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  return -1;
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}

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static int vnodeProcessCreateTbReq(SVnode *pVnode, int64_t version, void *pReq, int len, SRpcMsg *pRsp) {
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  SDecoder           decoder = {0};
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  int                rcode = 0;
  SVCreateTbBatchReq req = {0};
  SVCreateTbReq     *pCreateReq;
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  SVCreateTbBatchRsp rsp = {0};
  SVCreateTbRsp      cRsp = {0};
  char               tbName[TSDB_TABLE_FNAME_LEN];
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  STbUidStore       *pStore = NULL;
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  SArray            *tbUids = NULL;
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  pRsp->msgType = TDMT_VND_CREATE_TABLE_RSP;
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  pRsp->code = TSDB_CODE_SUCCESS;
  pRsp->pCont = NULL;
  pRsp->contLen = 0;
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  // decode
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  tDecoderInit(&decoder, pReq, len);
  if (tDecodeSVCreateTbBatchReq(&decoder, &req) < 0) {
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    rcode = -1;
    terrno = TSDB_CODE_INVALID_MSG;
    goto _exit;
  }
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  rsp.pArray = taosArrayInit(req.nReqs, sizeof(cRsp));
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  tbUids = taosArrayInit(req.nReqs, sizeof(int64_t));
  if (rsp.pArray == NULL || tbUids == NULL) {
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    rcode = -1;
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    goto _exit;
  }

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  // loop to create table
  for (int iReq = 0; iReq < req.nReqs; iReq++) {
    pCreateReq = req.pReqs + iReq;
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    // validate hash
    sprintf(tbName, "%s.%s", pVnode->config.dbname, pCreateReq->name);
    if (vnodeValidateTableHash(pVnode, tbName) < 0) {
      cRsp.code = TSDB_CODE_VND_HASH_MISMATCH;
      taosArrayPush(rsp.pArray, &cRsp);
      continue;
    }

    // do create table
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    if (metaCreateTable(pVnode->pMeta, version, pCreateReq) < 0) {
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      if (pCreateReq->flags & TD_CREATE_IF_NOT_EXISTS && terrno == TSDB_CODE_TDB_TABLE_ALREADY_EXIST) {
        cRsp.code = TSDB_CODE_SUCCESS;
      } else {
        cRsp.code = terrno;
      }
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    } else {
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      cRsp.code = TSDB_CODE_SUCCESS;
422
      tdFetchTbUidList(pVnode->pSma, &pStore, pCreateReq->ctb.suid, pCreateReq->uid);
423
      taosArrayPush(tbUids, &pCreateReq->uid);
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    }
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    taosArrayPush(rsp.pArray, &cRsp);
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  }

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  tDecoderClear(&decoder);
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431
  tqUpdateTbUidList(pVnode->pTq, tbUids, true);
432 433
  tdUpdateTbUidList(pVnode->pSma, pStore);
  tdUidStoreFree(pStore);
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  // prepare rsp
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  SEncoder encoder = {0};
  int32_t  ret = 0;
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  tEncodeSize(tEncodeSVCreateTbBatchRsp, &rsp, pRsp->contLen, ret);
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  pRsp->pCont = rpcMallocCont(pRsp->contLen);
  if (pRsp->pCont == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    rcode = -1;
    goto _exit;
  }
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  tEncoderInit(&encoder, pRsp->pCont, pRsp->contLen);
  tEncodeSVCreateTbBatchRsp(&encoder, &rsp);
  tEncoderClear(&encoder);
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_exit:
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  taosArrayDestroy(rsp.pArray);
451
  taosArrayDestroy(tbUids);
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  tDecoderClear(&decoder);
  tEncoderClear(&encoder);
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  return rcode;
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}

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static int vnodeProcessAlterStbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp) {
  SVCreateStbReq req = {0};
  SDecoder       dc = {0};

  pRsp->msgType = TDMT_VND_ALTER_STB_RSP;
  pRsp->code = TSDB_CODE_SUCCESS;
  pRsp->pCont = NULL;
  pRsp->contLen = 0;

  tDecoderInit(&dc, pReq, len);

  // decode req
  if (tDecodeSVCreateStbReq(&dc, &req) < 0) {
    terrno = TSDB_CODE_INVALID_MSG;
    tDecoderClear(&dc);
    return -1;
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  }
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  if (metaAlterSTable(pVnode->pMeta, version, &req) < 0) {
    pRsp->code = terrno;
    tDecoderClear(&dc);
    return -1;
  }

  tDecoderClear(&dc);

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  return 0;
}

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static int vnodeProcessDropStbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp) {
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  SVDropStbReq req = {0};
  int          rcode = TSDB_CODE_SUCCESS;
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  SDecoder     decoder = {0};
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  pRsp->msgType = TDMT_VND_CREATE_STB_RSP;
  pRsp->pCont = NULL;
  pRsp->contLen = 0;

  // decode request
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  tDecoderInit(&decoder, pReq, len);
  if (tDecodeSVDropStbReq(&decoder, &req) < 0) {
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    rcode = TSDB_CODE_INVALID_MSG;
    goto _exit;
  }

  // process request
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  // if (metaDropSTable(pVnode->pMeta, version, &req) < 0) {
  //   rcode = terrno;
  //   goto _exit;
  // }
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  // return rsp
_exit:
  pRsp->code = rcode;
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  tDecoderClear(&decoder);
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  return 0;
}

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static int vnodeProcessAlterTbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp) {
  SVAlterTbReq vAlterTbReq = {0};
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  SVAlterTbRsp vAlterTbRsp = {0};
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  SDecoder     dc = {0};
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  int          rcode = 0;
  int          ret;
  SEncoder     ec = {0};
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  pRsp->msgType = TDMT_VND_ALTER_TABLE_RSP;
  pRsp->pCont = NULL;
  pRsp->contLen = 0;
  pRsp->code = TSDB_CODE_SUCCESS;

  tDecoderInit(&dc, pReq, len);

  // decode
  if (tDecodeSVAlterTbReq(&dc, &vAlterTbReq) < 0) {
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    vAlterTbRsp.code = TSDB_CODE_INVALID_MSG;
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    tDecoderClear(&dc);
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    rcode = -1;
    goto _exit;
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  }

  // process
  if (metaAlterTable(pVnode->pMeta, version, &vAlterTbReq) < 0) {
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    vAlterTbRsp.code = TSDB_CODE_INVALID_MSG;
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    tDecoderClear(&dc);
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    rcode = -1;
    goto _exit;
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  }
  tDecoderClear(&dc);
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_exit:
  tEncodeSize(tEncodeSVAlterTbRsp, &vAlterTbRsp, pRsp->contLen, ret);
  pRsp->pCont = rpcMallocCont(pRsp->contLen);
  tEncoderInit(&ec, pRsp->pCont, pRsp->contLen);
  tEncodeSVAlterTbRsp(&ec, &vAlterTbRsp);
  tEncoderClear(&ec);
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  return 0;
}

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static int vnodeProcessDropTbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp) {
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  SVDropTbBatchReq req = {0};
  SVDropTbBatchRsp rsp = {0};
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  SDecoder         decoder = {0};
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  SEncoder         encoder = {0};
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  int              ret;
562
  SArray          *tbUids = NULL;
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  pRsp->msgType = TDMT_VND_DROP_TABLE_RSP;
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  pRsp->pCont = NULL;
  pRsp->contLen = 0;
  pRsp->code = TSDB_CODE_SUCCESS;
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  // decode req
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  tDecoderInit(&decoder, pReq, len);
  ret = tDecodeSVDropTbBatchReq(&decoder, &req);
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  if (ret < 0) {
    terrno = TSDB_CODE_INVALID_MSG;
    pRsp->code = terrno;
    goto _exit;
  }
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  // process req
579
  tbUids = taosArrayInit(req.nReqs, sizeof(int64_t));
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  rsp.pArray = taosArrayInit(req.nReqs, sizeof(SVDropTbRsp));
581 582
  if (tbUids == NULL || rsp.pArray == NULL) goto _exit;

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  for (int iReq = 0; iReq < req.nReqs; iReq++) {
    SVDropTbReq *pDropTbReq = req.pReqs + iReq;
    SVDropTbRsp  dropTbRsp = {0};
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    /* code */
588
    ret = metaDropTable(pVnode->pMeta, version, pDropTbReq, tbUids);
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    if (ret < 0) {
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      if (pDropTbReq->igNotExists && terrno == TSDB_CODE_VND_TABLE_NOT_EXIST) {
        dropTbRsp.code = TSDB_CODE_SUCCESS;
      } else {
        dropTbRsp.code = terrno;
      }
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    } else {
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      dropTbRsp.code = TSDB_CODE_SUCCESS;
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    }

    taosArrayPush(rsp.pArray, &dropTbRsp);
  }

602 603
  tqUpdateTbUidList(pVnode->pTq, tbUids, false);

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_exit:
605
  taosArrayDestroy(tbUids);
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  tDecoderClear(&decoder);
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  tEncodeSize(tEncodeSVDropTbBatchRsp, &rsp, pRsp->contLen, ret);
  pRsp->pCont = rpcMallocCont(pRsp->contLen);
  tEncoderInit(&encoder, pRsp->pCont, pRsp->contLen);
  tEncodeSVDropTbBatchRsp(&encoder, &rsp);
  tEncoderClear(&encoder);
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  return 0;
}

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static int vnodeDebugPrintSingleSubmitMsg(SMeta *pMeta, SSubmitBlk *pBlock, SSubmitMsgIter *msgIter, const char *tags) {
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  SSubmitBlkIter blkIter = {0};
  STSchema      *pSchema = NULL;
  tb_uid_t       suid = 0;
  STSRow        *row = NULL;
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  int32_t        rv = -1;
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  tInitSubmitBlkIter(msgIter, pBlock, &blkIter);
  if (blkIter.row == NULL) return 0;
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  if (!pSchema || (suid != msgIter->suid) || rv != TD_ROW_SVER(blkIter.row)) {
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    if (pSchema) {
      taosMemoryFreeClear(pSchema);
    }
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    pSchema = metaGetTbTSchema(pMeta, msgIter->suid, TD_ROW_SVER(blkIter.row));  // TODO: use the real schema
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    if (pSchema) {
      suid = msgIter->suid;
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      rv = TD_ROW_SVER(blkIter.row);
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    }
  }
  if (!pSchema) {
    printf("%s:%d no valid schema\n", tags, __LINE__);
    return -1;
  }
  char __tags[128] = {0};
  snprintf(__tags, 128, "%s: uid %" PRIi64 " ", tags, msgIter->uid);
  while ((row = tGetSubmitBlkNext(&blkIter))) {
    tdSRowPrint(row, pSchema, __tags);
  }

  taosMemoryFreeClear(pSchema);

  return TSDB_CODE_SUCCESS;
}

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static int vnodeDebugPrintSubmitMsg(SVnode *pVnode, SSubmitReq *pMsg, const char *tags) {
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  ASSERT(pMsg != NULL);
  SSubmitMsgIter msgIter = {0};
  SMeta         *pMeta = pVnode->pMeta;
  SSubmitBlk    *pBlock = NULL;

  if (tInitSubmitMsgIter(pMsg, &msgIter) < 0) return -1;
  while (true) {
    if (tGetSubmitMsgNext(&msgIter, &pBlock) < 0) return -1;
    if (pBlock == NULL) break;
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    vnodeDebugPrintSingleSubmitMsg(pMeta, pBlock, &msgIter, tags);
  }
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  return 0;
}

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static int vnodeProcessSubmitReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp) {
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  SSubmitReq    *pSubmitReq = (SSubmitReq *)pReq;
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  SSubmitRsp     submitRsp = {0};
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  SSubmitMsgIter msgIter = {0};
  SSubmitBlk    *pBlock;
  SSubmitRsp     rsp = {0};
  SVCreateTbReq  createTbReq = {0};
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  SDecoder       decoder = {0};
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  int32_t        nRows;
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  int32_t        tsize, ret;
  SEncoder       encoder = {0};
677
  terrno = TSDB_CODE_SUCCESS;
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  pRsp->code = 0;
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#ifdef TD_DEBUG_PRINT_ROW
  vnodeDebugPrintSubmitMsg(pVnode, pReq, __func__);
#endif

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  if (tsdbScanAndConvertSubmitMsg(pVnode->pTsdb, pSubmitReq) < 0) {
    pRsp->code = terrno;
    goto _exit;
  }

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  // handle the request
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  if (tInitSubmitMsgIter(pSubmitReq, &msgIter) < 0) {
    pRsp->code = TSDB_CODE_INVALID_MSG;
    goto _exit;
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  }

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  submitRsp.pArray = taosArrayInit(pSubmitReq->numOfBlocks, sizeof(SSubmitBlkRsp));
697 698 699 700 701
  if (!submitRsp.pArray) {
    pRsp->code = TSDB_CODE_OUT_OF_MEMORY;
    goto _exit;
  }

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  for (;;) {
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    tGetSubmitMsgNext(&msgIter, &pBlock);
    if (pBlock == NULL) break;

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    SSubmitBlkRsp submitBlkRsp = {0};

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    // create table for auto create table mode
    if (msgIter.schemaLen > 0) {
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      submitBlkRsp.hashMeta = 1;

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      tDecoderInit(&decoder, pBlock->data, msgIter.schemaLen);
      if (tDecodeSVCreateTbReq(&decoder, &createTbReq) < 0) {
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        pRsp->code = TSDB_CODE_INVALID_MSG;
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        tDecoderClear(&decoder);
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        goto _exit;
      }

      if (metaCreateTable(pVnode->pMeta, version, &createTbReq) < 0) {
        if (terrno != TSDB_CODE_TDB_TABLE_ALREADY_EXIST) {
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          submitBlkRsp.code = terrno;
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          tDecoderClear(&decoder);
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          goto _exit;
        }
      }

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      submitBlkRsp.uid = createTbReq.uid;
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      submitBlkRsp.tblFName = taosMemoryMalloc(strlen(pVnode->config.dbname) + strlen(createTbReq.name) + 2);
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      sprintf(submitBlkRsp.tblFName, "%s.", pVnode->config.dbname);
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      msgIter.uid = createTbReq.uid;
      if (createTbReq.type == TSDB_CHILD_TABLE) {
        msgIter.suid = createTbReq.ctb.suid;
      } else {
        msgIter.suid = 0;
      }

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      vnodeDebugPrintSingleSubmitMsg(pVnode->pMeta, pBlock, &msgIter, "real uid");
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      tDecoderClear(&decoder);
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    } else {
      submitBlkRsp.tblFName = taosMemoryMalloc(TSDB_TABLE_FNAME_LEN);
      sprintf(submitBlkRsp.tblFName, "%s.", pVnode->config.dbname);
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    }

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    if (tsdbInsertTableData(pVnode->pTsdb, &msgIter, pBlock, &submitBlkRsp) < 0) {
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      submitBlkRsp.code = terrno;
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    }

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    submitRsp.numOfRows += submitBlkRsp.numOfRows;
    submitRsp.affectedRows += submitBlkRsp.affectedRows;
    taosArrayPush(submitRsp.pArray, &submitBlkRsp);
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  }
753

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_exit:
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  tEncodeSize(tEncodeSSubmitRsp, &submitRsp, tsize, ret);
  pRsp->pCont = rpcMallocCont(tsize);
  pRsp->contLen = tsize;
  tEncoderInit(&encoder, pRsp->pCont, tsize);
  tEncodeSSubmitRsp(&encoder, &submitRsp);
  tEncoderClear(&encoder);

  for (int32_t i = 0; i < taosArrayGetSize(submitRsp.pArray); i++) {
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    taosMemoryFree(((SSubmitBlkRsp *)taosArrayGet(submitRsp.pArray, i))[0].tblFName);
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  }

  taosArrayDestroy(submitRsp.pArray);
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768 769 770 771
  // TODO: the partial success scenario and the error case
  // TODO: refactor
  if ((terrno == TSDB_CODE_SUCCESS || terrno == TSDB_CODE_TDB_TABLE_ALREADY_EXIST) &&
      (pRsp->code == TSDB_CODE_SUCCESS)) {
772
    tdProcessRSmaSubmit(pVnode->pSma, pReq, STREAM_DATA_TYPE_SUBMIT_BLOCK);
773
  }
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  return 0;
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}
777 778 779

static int vnodeProcessCreateTSmaReq(SVnode *pVnode, int64_t version, void *pReq, int len, SRpcMsg *pRsp) {
  SVCreateTSmaReq req = {0};
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  SDecoder        coder;
781 782 783 784 785 786 787 788 789 790 791 792

  pRsp->msgType = TDMT_VND_CREATE_SMA_RSP;
  pRsp->code = TSDB_CODE_SUCCESS;
  pRsp->pCont = NULL;
  pRsp->contLen = 0;

  // decode and process req
  tDecoderInit(&coder, pReq, len);

  if (tDecodeSVCreateTSmaReq(&coder, &req) < 0) {
    pRsp->code = terrno;
    goto _err;
793
  }
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  // record current timezone of server side
  req.timezoneInt = tsTimezone;

  if (tdProcessTSmaCreate(pVnode->pSma, version, (const char *)&req) < 0) {
799 800
    pRsp->code = terrno;
    goto _err;
801
  }
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803
  tDecoderClear(&coder);
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  vDebug("vgId:%d success to create tsma %s:%" PRIi64 " for table %" PRIi64, TD_VID(pVnode), req.indexName,
         req.indexUid, req.tableUid);
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  return 0;
807 808 809

_err:
  tDecoderClear(&coder);
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  vError("vgId:%d failed to create tsma %s:%" PRIi64 " for table %" PRIi64 " since %s", TD_VID(pVnode), req.indexName,
         req.indexUid, req.tableUid, terrstr(terrno));
812
  return -1;
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}