dndTransport.c 18.1 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/>.
 */

/* this file is mainly responsible for the communication between DNODEs. Each
 * dnode works as both server and client. Dnode may send status, grant, config
 * messages to mnode, mnode may send create/alter/drop table/vnode messages
 * to dnode. All theses messages are handled from here
 */

#define _DEFAULT_SOURCE
#include "dndTransport.h"
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#include "dndMgmt.h"
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#include "dndMnode.h"
#include "dndVnodes.h"

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#define INTERNAL_USER   "_dnd"
#define INTERNAL_CKEY   "_key"
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#define INTERNAL_SECRET "_pwd"
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static void dndInitMsgFp(STransMgmt *pMgmt) {
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  // Requests handled by DNODE
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_MNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_MNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_ALTER_MNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_ALTER_MNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_MNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_MNODE_RSP)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_QNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_QNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_QNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_QNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_SNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_SNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_SNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_SNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_BNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_BNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_BNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_BNODE_RSP)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_VNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CREATE_VNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_ALTER_VNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_ALTER_VNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_VNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_DROP_VNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_SYNC_VNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_SYNC_VNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_COMPACT_VNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_COMPACT_VNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CONFIG_DNODE)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_CONFIG_DNODE_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_DND_NETWORK_TEST)] = dndProcessMgmtMsg;
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  // Requests handled by MNODE
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CONNECT)] = dndProcessMnodeReadMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_ACCT)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_ALTER_ACCT)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_ACCT)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_USER)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_ALTER_USER)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_USER)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_GET_USER_AUTH)] = dndProcessMnodeReadMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_DNODE)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CONFIG_DNODE)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_DNODE)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_MNODE)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_MNODE)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_QNODE)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_QNODE)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_SNODE)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_SNODE)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_BNODE)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_BNODE)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_DB)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_DB)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_USE_DB)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_ALTER_DB)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_SYNC_DB)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_COMPACT_DB)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_FUNC)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_RETRIEVE_FUNC)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_FUNC)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_STB)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_ALTER_STB)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_STB)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_STB_META)] = dndProcessMnodeReadMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_VGROUP_LIST)] = dndProcessMnodeReadMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_KILL_QUERY)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_KILL_CONN)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_HEARTBEAT)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_SHOW)] = dndProcessMnodeReadMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_SHOW_RETRIEVE)] = dndProcessMnodeReadMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_STATUS)] = dndProcessMnodeReadMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_STATUS_RSP)] = dndProcessMgmtMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_KILL_TRANS)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_GRANT)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_GRANT_RSP)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_AUTH)] = dndProcessMnodeReadMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_AUTH_RSP)] = dndProcessMgmtMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_CREATE_TOPIC)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_ALTER_TOPIC)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_DROP_TOPIC)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_SUBSCRIBE)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_MQ_COMMIT_OFFSET)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_SET_CONN_RSP)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_REB_RSP)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_MND_GET_SUB_EP)] = dndProcessMnodeReadMsg;
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  // Requests handled by VNODE
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_SUBMIT)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_QUERY)] = dndProcessVnodeQueryMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_QUERY_CONTINUE)] = dndProcessVnodeQueryMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_FETCH)] = dndProcessVnodeFetchMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_FETCH_RSP)] = dndProcessVnodeFetchMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_ALTER_TABLE)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_UPDATE_TAG_VAL)] = dndProcessVnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_TABLE_META)] = dndProcessVnodeFetchMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_TABLES_META)] = dndProcessVnodeFetchMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_CONSUME)] = dndProcessVnodeQueryMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_QUERY)] = dndProcessVnodeQueryMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_CONNECT)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_DISCONNECT)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_SET_CUR)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_RES_READY)] = dndProcessVnodeFetchMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_TASKS_STATUS)] = dndProcessVnodeFetchMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_CANCEL_TASK)] = dndProcessVnodeFetchMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_DROP_TASK)] = dndProcessVnodeFetchMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_CREATE_STB)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_CREATE_STB_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_ALTER_STB)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_ALTER_STB_RSP)] = dndProcessMnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_DROP_STB)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_DROP_STB_RSP)] = dndProcessMnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_CREATE_TABLE)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_ALTER_TABLE)] = dndProcessVnodeWriteMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_DROP_TABLE)] = dndProcessVnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_SHOW_TABLES)] = dndProcessVnodeFetchMsg;
  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_SHOW_TABLES_FETCH)] = dndProcessVnodeFetchMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_SET_CONN)] = dndProcessVnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_REB)] = dndProcessVnodeWriteMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_MQ_SET_CUR)] = dndProcessVnodeFetchMsg;
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  pMgmt->msgFp[TMSG_INDEX(TDMT_VND_CONSUME)] = dndProcessVnodeFetchMsg;
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}

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static void dndProcessResponse(void *parent, SRpcMsg *pRsp, SEpSet *pEpSet) {
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  SDnode     *pDnode = parent;
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  STransMgmt *pMgmt = &pDnode->tmgmt;
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  tmsg_t msgType = pRsp->msgType;
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  if (dndGetStat(pDnode) == DND_STAT_STOPPED) {
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    if (pRsp == NULL || pRsp->pCont == NULL) return;
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    dTrace("RPC %p, rsp:%s ignored since dnode exiting, app:%p", pRsp->handle, TMSG_INFO(msgType), pRsp->ahandle);
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    rpcFreeCont(pRsp->pCont);
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    return;
  }

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  DndMsgFp fp = pMgmt->msgFp[TMSG_INDEX(msgType)];
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  if (fp != NULL) {
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    dTrace("RPC %p, rsp:%s will be processed, code:0x%x app:%p", pRsp->handle, TMSG_INFO(msgType), pRsp->code & 0XFFFF,
           pRsp->ahandle);
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    (*fp)(pDnode, pRsp, pEpSet);
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  } else {
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    dError("RPC %p, rsp:%s not processed, app:%p", pRsp->handle, TMSG_INFO(msgType), pRsp->ahandle);
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    rpcFreeCont(pRsp->pCont);
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  }
}

static int32_t dndInitClient(SDnode *pDnode) {
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  STransMgmt *pMgmt = &pDnode->tmgmt;
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  SRpcInit rpcInit;
  memset(&rpcInit, 0, sizeof(rpcInit));
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  rpcInit.label = "D-C";
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  rpcInit.numOfThreads = 1;
  rpcInit.cfp = dndProcessResponse;
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  rpcInit.sessions = 1024;
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  rpcInit.connType = TAOS_CONN_CLIENT;
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  rpcInit.idleTime = pDnode->cfg.shellActivityTimer * 1000;
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  rpcInit.user = INTERNAL_USER;
  rpcInit.ckey = INTERNAL_CKEY;
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  rpcInit.spi = 1;
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  rpcInit.parent = pDnode;
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  rpcInit.noPool = true;
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  char pass[TSDB_PASSWORD_LEN + 1] = {0};
  taosEncryptPass_c((uint8_t *)(INTERNAL_SECRET), strlen(INTERNAL_SECRET), pass);
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  rpcInit.secret = pass;

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  pMgmt->clientRpc = rpcOpen(&rpcInit);
  if (pMgmt->clientRpc == NULL) {
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    dError("failed to init dnode rpc client");
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    return -1;
  }

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  dDebug("dnode rpc client is initialized");
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  return 0;
}

static void dndCleanupClient(SDnode *pDnode) {
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  STransMgmt *pMgmt = &pDnode->tmgmt;
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  if (pMgmt->clientRpc) {
    rpcClose(pMgmt->clientRpc);
    pMgmt->clientRpc = NULL;
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    dDebug("dnode rpc client is closed");
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  }
}

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static void dndProcessRequest(void *param, SRpcMsg *pReq, SEpSet *pEpSet) {
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  SDnode     *pDnode = param;
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  STransMgmt *pMgmt = &pDnode->tmgmt;
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  tmsg_t msgType = pReq->msgType;
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  if (msgType == TDMT_DND_NETWORK_TEST) {
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    dTrace("RPC %p, network test req will be processed, app:%p", pReq->handle, pReq->ahandle);
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    dndProcessStartupReq(pDnode, pReq);
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    return;
  }

  if (dndGetStat(pDnode) == DND_STAT_STOPPED) {
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    dError("RPC %p, req:%s ignored since dnode exiting, app:%p", pReq->handle, TMSG_INFO(msgType), pReq->ahandle);
    SRpcMsg rspMsg = {.handle = pReq->handle, .code = TSDB_CODE_DND_OFFLINE, .ahandle = pReq->ahandle};
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    rpcSendResponse(&rspMsg);
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    rpcFreeCont(pReq->pCont);
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    return;
  } else if (dndGetStat(pDnode) != DND_STAT_RUNNING) {
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    dError("RPC %p, req:%s ignored since dnode not running, app:%p", pReq->handle, TMSG_INFO(msgType), pReq->ahandle);
    SRpcMsg rspMsg = {.handle = pReq->handle, .code = TSDB_CODE_APP_NOT_READY, .ahandle = pReq->ahandle};
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    rpcSendResponse(&rspMsg);
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    rpcFreeCont(pReq->pCont);
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    return;
  }

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  if (pReq->pCont == NULL) {
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    dTrace("RPC %p, req:%s not processed since its empty, app:%p", pReq->handle, TMSG_INFO(msgType), pReq->ahandle);
    SRpcMsg rspMsg = {.handle = pReq->handle, .code = TSDB_CODE_DND_INVALID_MSG_LEN, .ahandle = pReq->ahandle};
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    rpcSendResponse(&rspMsg);
    return;
  }

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  DndMsgFp fp = pMgmt->msgFp[TMSG_INDEX(msgType)];
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  if (fp != NULL) {
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    dTrace("RPC %p, req:%s will be processed, app:%p", pReq->handle, TMSG_INFO(msgType), pReq->ahandle);
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    (*fp)(pDnode, pReq, pEpSet);
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  } else {
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    dError("RPC %p, req:%s not processed since no handle, app:%p", pReq->handle, TMSG_INFO(msgType), pReq->ahandle);
    SRpcMsg rspMsg = {.handle = pReq->handle, .code = TSDB_CODE_MSG_NOT_PROCESSED, .ahandle = pReq->ahandle};
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    rpcSendResponse(&rspMsg);
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    rpcFreeCont(pReq->pCont);
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  }
}

static void dndSendMsgToMnodeRecv(SDnode *pDnode, SRpcMsg *pRpcMsg, SRpcMsg *pRpcRsp) {
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  STransMgmt *pMgmt = &pDnode->tmgmt;
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  SEpSet epSet = {0};
  dndGetMnodeEpSet(pDnode, &epSet);
  rpcSendRecv(pMgmt->clientRpc, &epSet, pRpcMsg, pRpcRsp);
}

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static int32_t dndAuthInternalReq(SDnode *pDnode, char *user, char *spi, char *encrypt, char *secret, char *ckey) {
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  if (strcmp(user, INTERNAL_USER) == 0) {
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    char pass[TSDB_PASSWORD_LEN + 1] = {0};
    taosEncryptPass_c((uint8_t *)(INTERNAL_SECRET), strlen(INTERNAL_SECRET), pass);
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    memcpy(secret, pass, TSDB_PASSWORD_LEN);
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    *spi = 1;
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    *encrypt = 0;
    *ckey = 0;
    return 0;
  } else if (strcmp(user, TSDB_NETTEST_USER) == 0) {
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    char pass[TSDB_PASSWORD_LEN + 1] = {0};
    taosEncryptPass_c((uint8_t *)(TSDB_NETTEST_USER), strlen(TSDB_NETTEST_USER), pass);
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    memcpy(secret, pass, TSDB_PASSWORD_LEN);
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    *spi = 1;
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    *encrypt = 0;
    *ckey = 0;
    return 0;
  } else {
    return -1;
  }
}

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static int32_t dndRetrieveUserAuthInfo(void *parent, char *user, char *spi, char *encrypt, char *secret, char *ckey) {
  SDnode *pDnode = parent;

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  if (dndAuthInternalReq(parent, user, spi, encrypt, secret, ckey) == 0) {
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    dTrace("user:%s, get auth from mnode, spi:%d encrypt:%d", user, *spi, *encrypt);
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    return 0;
  }

  if (dndGetUserAuthFromMnode(pDnode, user, spi, encrypt, secret, ckey) == 0) {
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    dTrace("user:%s, get auth from mnode, spi:%d encrypt:%d", user, *spi, *encrypt);
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    return 0;
  }

  if (terrno != TSDB_CODE_APP_NOT_READY) {
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    dTrace("failed to get user auth from mnode since %s", terrstr());
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    return -1;
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  }

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  SAuthReq authReq = {0};
  tstrncpy(authReq.user, user, TSDB_USER_LEN);
  int32_t contLen = tSerializeSAuthReq(NULL, 0, &authReq);
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  void   *pReq = rpcMallocCont(contLen);
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  tSerializeSAuthReq(pReq, contLen, &authReq);
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  SRpcMsg rpcMsg = {.pCont = pReq, .contLen = contLen, .msgType = TDMT_MND_AUTH, .ahandle = (void *)9528};
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  SRpcMsg rpcRsp = {0};
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  dTrace("user:%s, send user auth req to other mnodes, spi:%d encrypt:%d", user, authReq.spi, authReq.encrypt);
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  dndSendMsgToMnodeRecv(pDnode, &rpcMsg, &rpcRsp);

  if (rpcRsp.code != 0) {
    terrno = rpcRsp.code;
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    dError("user:%s, failed to get user auth from other mnodes since %s", user, terrstr());
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  } else {
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    SAuthRsp authRsp = {0};
    tDeserializeSAuthReq(rpcRsp.pCont, rpcRsp.contLen, &authRsp);
    memcpy(secret, authRsp.secret, TSDB_PASSWORD_LEN);
    memcpy(ckey, authRsp.ckey, TSDB_PASSWORD_LEN);
    *spi = authRsp.spi;
    *encrypt = authRsp.encrypt;
    dTrace("user:%s, success to get user auth from other mnodes, spi:%d encrypt:%d", user, authRsp.spi,
           authRsp.encrypt);
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  }

  rpcFreeCont(rpcRsp.pCont);
  return rpcRsp.code;
}

static int32_t dndInitServer(SDnode *pDnode) {
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  STransMgmt *pMgmt = &pDnode->tmgmt;
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  dndInitMsgFp(pMgmt);

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  int32_t numOfThreads = (int32_t)((pDnode->env.numOfCores * pDnode->cfg.numOfThreadsPerCore) / 2.0);
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  if (numOfThreads < 1) {
    numOfThreads = 1;
  }

  SRpcInit rpcInit;
  memset(&rpcInit, 0, sizeof(rpcInit));
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  rpcInit.localPort = pDnode->cfg.serverPort;
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  rpcInit.label = "D-S";
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  rpcInit.numOfThreads = numOfThreads;
  rpcInit.cfp = dndProcessRequest;
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  rpcInit.sessions = pDnode->cfg.maxShellConns;
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  rpcInit.connType = TAOS_CONN_SERVER;
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  rpcInit.idleTime = pDnode->cfg.shellActivityTimer * 1000;
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  rpcInit.afp = dndRetrieveUserAuthInfo;
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  rpcInit.parent = pDnode;
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  pMgmt->serverRpc = rpcOpen(&rpcInit);
  if (pMgmt->serverRpc == NULL) {
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    dError("failed to init dnode rpc server");
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    return -1;
  }

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  dDebug("dnode rpc server is initialized");
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  return 0;
}

static void dndCleanupServer(SDnode *pDnode) {
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  STransMgmt *pMgmt = &pDnode->tmgmt;
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  if (pMgmt->serverRpc) {
    rpcClose(pMgmt->serverRpc);
    pMgmt->serverRpc = NULL;
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    dDebug("dnode rpc server is closed");
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  }
}

int32_t dndInitTrans(SDnode *pDnode) {
  if (dndInitClient(pDnode) != 0) {
    return -1;
  }

  if (dndInitServer(pDnode) != 0) {
    return -1;
  }

  dInfo("dnode-transport is initialized");
  return 0;
}

void dndCleanupTrans(SDnode *pDnode) {
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  dInfo("dnode-transport start to clean up");
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  dndCleanupServer(pDnode);
  dndCleanupClient(pDnode);
  dInfo("dnode-transport is cleaned up");
}

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int32_t dndSendReqToDnode(SDnode *pDnode, SEpSet *pEpSet, SRpcMsg *pReq) {
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  STransMgmt *pMgmt = &pDnode->tmgmt;
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  if (pMgmt->clientRpc == NULL) {
    terrno = TSDB_CODE_DND_OFFLINE;
    return -1;
  }

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  rpcSendRequest(pMgmt->clientRpc, pEpSet, pReq, NULL);
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  return 0;
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}

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int32_t dndSendReqToMnode(SDnode *pDnode, SRpcMsg *pReq) {
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  SEpSet epSet = {0};
  dndGetMnodeEpSet(pDnode, &epSet);
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  return dndSendReqToDnode(pDnode, &epSet, pReq);
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}