#4986

Committed 15 Mar 2026 08:32AM UTC coverage: 37.305% (-31.3%) from 68.601%

Build # #4986

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travis-ci

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tomchon

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test: keep docs and unit test

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2.75

/source/dnode/mnode/impl/src/mndBnode.c

/*
 * 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/>.
 */

#define _DEFAULT_SOURCE
#include "mndBnode.h"
#include "mndDnode.h"
#include "mndPrivilege.h"
#include "mndShow.h"
#include "mndTrans.h"
#include "mndUser.h"

#define BNODE_VER_NUMBER   1
#define BNODE_RESERVE_SIZE 64

static SSdbRaw *mndBnodeActionEncode(SBnodeObj *pObj) {
  int32_t code = 0;
  int32_t lino = 0;

  terrno = TSDB_CODE_OUT_OF_MEMORY;

  SSdbRaw *pRaw = sdbAllocRaw(SDB_BNODE, BNODE_VER_NUMBER, sizeof(SBnodeObj) + BNODE_RESERVE_SIZE);
  if (pRaw == NULL) goto _OVER;

  int32_t dataPos = 0;
  SDB_SET_INT32(pRaw, dataPos, pObj->id, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pObj->proto, _OVER)
  SDB_SET_INT64(pRaw, dataPos, pObj->createdTime, _OVER)
  SDB_SET_INT64(pRaw, dataPos, pObj->updateTime, _OVER)
  SDB_SET_RESERVE(pRaw, dataPos, BNODE_RESERVE_SIZE, _OVER)

  terrno = 0;

_OVER:
  if (terrno != 0) {
    mError("bnode:%d, failed to encode to raw:%p since %s", pObj->id, pRaw, terrstr());
    sdbFreeRaw(pRaw);
    return NULL;
  }

  mTrace("bnode:%d, encode to raw:%p, row:%p", pObj->id, pRaw, pObj);
  return pRaw;
}

static SSdbRow *mndBnodeActionDecode(SSdbRaw *pRaw) {
  int32_t    code = 0;
  int32_t    lino = 0;
  SSdbRow   *pRow = NULL;
  SBnodeObj *pObj = NULL;
  int8_t     sver = 0;

  terrno = TSDB_CODE_OUT_OF_MEMORY;

  if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto _OVER;

  if (sver != BNODE_VER_NUMBER) {
    terrno = TSDB_CODE_SDB_INVALID_DATA_VER;
    goto _OVER;
  }

  pRow = sdbAllocRow(sizeof(SBnodeObj));
  if (pRow == NULL) goto _OVER;

  pObj = sdbGetRowObj(pRow);
  if (pObj == NULL) goto _OVER;

  int32_t dataPos = 0;
  SDB_GET_INT32(pRaw, dataPos, &pObj->id, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pObj->proto, _OVER)
  SDB_GET_INT64(pRaw, dataPos, &pObj->createdTime, _OVER)
  SDB_GET_INT64(pRaw, dataPos, &pObj->updateTime, _OVER)
  SDB_GET_RESERVE(pRaw, dataPos, BNODE_RESERVE_SIZE, _OVER)

  terrno = 0;

_OVER:
  if (terrno != 0) {
    mError("bnode:%d, failed to decode from raw:%p since %s", pObj == NULL ? 0 : pObj->id, pRaw, terrstr());
    taosMemoryFreeClear(pRow);
    return NULL;
  }

  mTrace("bnode:%d, decode from raw:%p, row:%p", pObj->id, pRaw, pObj);
  return pRow;
}

static int32_t mndBnodeActionInsert(SSdb *pSdb, SBnodeObj *pObj) {
  mTrace("bnode:%d, perform insert action, row:%p", pObj->id, pObj);
  pObj->pDnode = sdbAcquire(pSdb, SDB_DNODE, &pObj->id);
  if (pObj->pDnode == NULL) {
    terrno = TSDB_CODE_MND_DNODE_NOT_EXIST;
    mError("bnode:%d, failed to perform insert action since %s", pObj->id, terrstr());
    return -1;
  }

  return 0;
}

static int32_t mndBnodeActionDelete(SSdb *pSdb, SBnodeObj *pObj) {
  mTrace("bnode:%d, perform delete action, row:%p", pObj->id, pObj);
  if (pObj->pDnode != NULL) {
    sdbRelease(pSdb, pObj->pDnode);
    pObj->pDnode = NULL;
  }

  return 0;
}

static int32_t mndBnodeActionUpdate(SSdb *pSdb, SBnodeObj *pOld, SBnodeObj *pNew) {
  mTrace("bnode:%d, perform update action, old row:%p new row:%p", pOld->id, pOld, pNew);
  pOld->updateTime = pNew->updateTime;
  return 0;
}

static int32_t mndSetCreateBnodeRedoLogs(STrans *pTrans, SBnodeObj *pObj) {
  int32_t  code = 0;
  SSdbRaw *pRedoRaw = mndBnodeActionEncode(pObj);
  if (pRedoRaw == NULL) {
    code = TSDB_CODE_MND_RETURN_VALUE_NULL;
    if (terrno != 0) code = terrno;
    TAOS_RETURN(code);
  }
  TAOS_CHECK_RETURN(mndTransAppendRedolog(pTrans, pRedoRaw));
  TAOS_CHECK_RETURN(sdbSetRawStatus(pRedoRaw, SDB_STATUS_CREATING));
  TAOS_RETURN(code);
}

static int32_t mndSetCreateBnodeUndoLogs(STrans *pTrans, SBnodeObj *pObj) {
  int32_t  code = 0;
  SSdbRaw *pUndoRaw = mndBnodeActionEncode(pObj);
  if (pUndoRaw == NULL) {
    code = TSDB_CODE_MND_RETURN_VALUE_NULL;
    if (terrno != 0) code = terrno;
    TAOS_RETURN(code);
  }
  TAOS_CHECK_RETURN(mndTransAppendUndolog(pTrans, pUndoRaw));
  TAOS_CHECK_RETURN(sdbSetRawStatus(pUndoRaw, SDB_STATUS_DROPPED));
  TAOS_RETURN(code);
}

static int32_t mndSetCreateBnodeCommitLogs(STrans *pTrans, SBnodeObj *pObj) {
  int32_t  code = 0;
  SSdbRaw *pCommitRaw = mndBnodeActionEncode(pObj);
  if (pCommitRaw == NULL) {
    code = TSDB_CODE_MND_RETURN_VALUE_NULL;
    if (terrno != 0) code = terrno;
    TAOS_RETURN(code);
  }
  TAOS_CHECK_RETURN(mndTransAppendCommitlog(pTrans, pCommitRaw));
  TAOS_CHECK_RETURN(sdbSetRawStatus(pCommitRaw, SDB_STATUS_READY));
  TAOS_RETURN(code);
}

static int32_t mndSetCreateBnodeRedoActions(STrans *pTrans, SDnodeObj *pDnode, SBnodeObj *pObj) {
  int32_t          code = 0;
  SDCreateBnodeReq createReq = {0};
  createReq.dnodeId = pDnode->id;
  createReq.bnodeProto = pObj->proto;

  int32_t contLen = tSerializeSMCreateBnodeReq(NULL, 0, &createReq);
  void   *pReq = taosMemoryMalloc(contLen);
  if (pReq == NULL) {
    code = terrno;
    TAOS_RETURN(code);
  }
  code = tSerializeSMCreateBnodeReq(pReq, contLen, &createReq);
  if (code < 0) {
    mError("bnode:%d, failed to serialize create drop bnode request since %s", createReq.dnodeId, terrstr());

    taosMemoryFree(pReq);
    TAOS_RETURN(code);
  }

  STransAction action = {0};
  action.epSet = mndGetDnodeEpset(pDnode);
  action.pCont = pReq;
  action.contLen = contLen;
  action.msgType = TDMT_DND_CREATE_BNODE;
  action.acceptableCode = TSDB_CODE_BNODE_ALREADY_DEPLOYED;

  if ((code = mndTransAppendRedoAction(pTrans, &action)) != 0) {
    taosMemoryFree(pReq);
    TAOS_RETURN(code);
  }

  TAOS_RETURN(code);
}

static int32_t mndSetCreateBnodeUndoActions(STrans *pTrans, SDnodeObj *pDnode, SBnodeObj *pObj) {
  int32_t        code = 0;
  SDDropBnodeReq dropReq = {0};
  dropReq.dnodeId = pDnode->id;

  int32_t contLen = tSerializeSMDropBnodeReq(NULL, 0, &dropReq);
  void   *pReq = taosMemoryMalloc(contLen);
  if (pReq == NULL) {
    code = terrno;
    TAOS_RETURN(code);
  }
  code = tSerializeSMDropBnodeReq(pReq, contLen, &dropReq);
  if (code < 0) {
    mError("bnode:%d, failed to serialize create drop bnode request since %s", dropReq.dnodeId, terrstr());
  }

  STransAction action = {0};
  action.epSet = mndGetDnodeEpset(pDnode);
  action.pCont = pReq;
  action.contLen = contLen;
  action.msgType = TDMT_DND_DROP_BNODE;
  action.acceptableCode = TSDB_CODE_BNODE_NOT_DEPLOYED;

  if ((code = mndTransAppendUndoAction(pTrans, &action)) != 0) {
    taosMemoryFree(pReq);
    TAOS_RETURN(code);
  }

  TAOS_RETURN(code);
}

static int32_t mndCreateBnode(SMnode *pMnode, SRpcMsg *pReq, SDnodeObj *pDnode, SMCreateBnodeReq *pCreate) {
  int32_t code = -1;

  SBnodeObj bnodeObj = {0};
  bnodeObj.id = pDnode->id;
  bnodeObj.proto = pCreate->bnodeProto;
  bnodeObj.createdTime = taosGetTimestampMs();
  bnodeObj.updateTime = bnodeObj.createdTime;

  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_CONFLICT_NOTHING, pReq, "create-bnode");
  if (pTrans == NULL) {
    code = TSDB_CODE_MND_RETURN_VALUE_NULL;
    if (terrno != 0) code = terrno;
    goto _OVER;
  }
  mndTransSetSerial(pTrans);

  mInfo("trans:%d, to create bnode:%d %d", pTrans->id, pCreate->dnodeId, pCreate->bnodeProto);

  TAOS_CHECK_GOTO(mndSetCreateBnodeRedoLogs(pTrans, &bnodeObj), NULL, _OVER);
  TAOS_CHECK_GOTO(mndSetCreateBnodeUndoLogs(pTrans, &bnodeObj), NULL, _OVER);
  TAOS_CHECK_GOTO(mndSetCreateBnodeCommitLogs(pTrans, &bnodeObj), NULL, _OVER);
  TAOS_CHECK_GOTO(mndSetCreateBnodeRedoActions(pTrans, pDnode, &bnodeObj), NULL, _OVER);
  TAOS_CHECK_GOTO(mndSetCreateBnodeUndoActions(pTrans, pDnode, &bnodeObj), NULL, _OVER);
  TAOS_CHECK_GOTO(mndTransPrepare(pMnode, pTrans), NULL, _OVER);

  code = 0;

_OVER:
  mndTransDrop(pTrans);
  TAOS_RETURN(code);
}

static int32_t mndProcessCreateBnodeReq(SRpcMsg *pReq) {
  SMnode          *pMnode = pReq->info.node;
  int32_t          code = -1;
  SBnodeObj       *pObj = NULL;
  SDnodeObj       *pDnode = NULL;
  SMCreateBnodeReq createReq = {0};

  #ifdef LINUX

  TAOS_CHECK_GOTO(tDeserializeSMCreateBnodeReq(pReq->pCont, pReq->contLen, &createReq), NULL, _OVER);

  mInfo("bnode:%d, start to create", createReq.dnodeId);
  TAOS_CHECK_GOTO(mndCheckOperPrivilege(pMnode, RPC_MSG_USER(pReq), RPC_MSG_TOKEN(pReq), MND_OPER_CREATE_BNODE), NULL, _OVER);

  pObj = mndAcquireBnode(pMnode, createReq.dnodeId);
  if (pObj != NULL) {
    code = terrno = TSDB_CODE_MND_BNODE_ALREADY_EXIST;
    goto _OVER;
  } else if (terrno != TSDB_CODE_MND_BNODE_NOT_EXIST) {
    code = terrno;
    goto _OVER;
  }

  pDnode = mndAcquireDnode(pMnode, createReq.dnodeId);
  if (pDnode == NULL) {
    code = TSDB_CODE_MND_DNODE_NOT_EXIST;
    goto _OVER;
  }

  code = mndCreateBnode(pMnode, pReq, pDnode, &createReq);
  if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;

_OVER:
  if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {
    mError("bnode:%d, failed to create since %s", createReq.dnodeId, tstrerror(code));
    TAOS_RETURN(code);
  }

  //  mndReleaseBnode(pMnode, pObj);
  mndReleaseDnode(pMnode, pDnode);
  tFreeSMCreateBnodeReq(&createReq);

  #else

  code = TSDB_CODE_OPS_NOT_SUPPORT;

  #endif

  TAOS_RETURN(code);
}

static int32_t mndSetDropBnodeRedoLogs(STrans *pTrans, SBnodeObj *pObj) {
  int32_t code = 0, lino = 0;

  SSdbRaw *pRedoRaw = mndBnodeActionEncode(pObj);
  if (pRedoRaw == NULL) {
    code = TSDB_CODE_MND_RETURN_VALUE_NULL;
    if (terrno != 0) code = terrno;
    TAOS_RETURN(code);
  }
  TAOS_CHECK_GOTO(mndTransAppendGroupRedolog(pTrans, pRedoRaw, -1), &lino, _OVER);
  TAOS_CHECK_GOTO(sdbSetRawStatus(pRedoRaw, SDB_STATUS_DROPPING), &lino, _OVER);

_OVER:
  if (code != 0) {
    mError("bnode:%d, failed to drop bnode at line:%d since %s", pObj->id, lino, tstrerror(code));
  }

  TAOS_RETURN(code);
}

static int32_t mndSetDropBnodeCommitLogs(STrans *pTrans, SBnodeObj *pObj) {
  int32_t  code = 0;
  SSdbRaw *pCommitRaw = mndBnodeActionEncode(pObj);
  if (pCommitRaw == NULL) {
    code = TSDB_CODE_MND_RETURN_VALUE_NULL;
    if (terrno != 0) code = terrno;
    TAOS_RETURN(code);
  }
  TAOS_CHECK_RETURN(mndTransAppendCommitlog(pTrans, pCommitRaw));
  TAOS_CHECK_RETURN(sdbSetRawStatus(pCommitRaw, SDB_STATUS_DROPPED));
  TAOS_RETURN(code);
}

static int32_t mndSetDropBnodeRedoActions(STrans *pTrans, SDnodeObj *pDnode, SBnodeObj *pObj) {
  int32_t        code = 0;
  SDDropBnodeReq dropReq = {0};
  dropReq.dnodeId = pDnode->id;

  int32_t contLen = tSerializeSMDropBnodeReq(NULL, 0, &dropReq);
  void   *pReq = taosMemoryMalloc(contLen);
  if (pReq == NULL) {
    code = terrno;
    TAOS_RETURN(code);
  }
  code = tSerializeSMDropBnodeReq(pReq, contLen, &dropReq);
  if (code < 0) {
    mError("bnode:%d, failed to serialize create drop bnode request since %s", dropReq.dnodeId, terrstr());
  }

  STransAction action = {0};
  action.epSet = mndGetDnodeEpset(pDnode);
  action.pCont = pReq;
  action.contLen = contLen;
  action.msgType = TDMT_DND_DROP_BNODE;
  action.acceptableCode = TSDB_CODE_BNODE_NOT_DEPLOYED;

  if ((code = mndTransAppendRedoAction(pTrans, &action)) != 0) {
    taosMemoryFree(pReq);
    TAOS_RETURN(code);
  }

  TAOS_RETURN(code);
}

int32_t mndSetDropBnodeInfoToTrans(SMnode *pMnode, STrans *pTrans, SBnodeObj *pObj, bool force) {
  int32_t code = -1, lino = 0;

  if (pObj == NULL) return 0;
  TAOS_CHECK_GOTO(mndSetDropBnodeRedoLogs(pTrans, pObj), &lino, _OVER);
  TAOS_CHECK_GOTO(mndSetDropBnodeCommitLogs(pTrans, pObj), &lino, _OVER);
  if (!force) {
    TAOS_CHECK_GOTO(mndSetDropBnodeRedoActions(pTrans, pObj->pDnode, pObj), &lino, _OVER);
  }

_OVER:
  if (code != 0) {
    mError("bnode:%d, failed to drop bnode at line:%d since %s", pObj->id, lino, tstrerror(code));
  }

  return code;
}

static int32_t mndDropBnode(SMnode *pMnode, SRpcMsg *pReq, SBnodeObj *pObj) {
  int32_t code = -1;

  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_CONFLICT_NOTHING, pReq, "drop-bnode");
  if (pTrans == NULL) {
    code = TSDB_CODE_MND_RETURN_VALUE_NULL;
    if (terrno != 0) code = terrno;
    goto _OVER;
  }
  mndTransSetSerial(pTrans);

  mInfo("trans:%d, used to drop bnode:%d", pTrans->id, pObj->id);
  TAOS_CHECK_GOTO(mndSetDropBnodeInfoToTrans(pMnode, pTrans, pObj, false), NULL, _OVER);
  TAOS_CHECK_GOTO(mndTransPrepare(pMnode, pTrans), NULL, _OVER);

  code = 0;

_OVER:
  mndTransDrop(pTrans);
  TAOS_RETURN(code);
}

static int32_t mndProcessDropBnodeReq(SRpcMsg *pReq) {
  SMnode        *pMnode = pReq->info.node;
  int32_t        code = -1;
  SBnodeObj     *pObj = NULL;
  SDnodeObj     *pDnode = NULL;
  SMDropBnodeReq dropReq = {0};

  TAOS_CHECK_GOTO(tDeserializeSMDropBnodeReq(pReq->pCont, pReq->contLen, &dropReq), NULL, _OVER);

  mInfo("bnode:%d, start to drop", dropReq.dnodeId);
  TAOS_CHECK_GOTO(mndCheckOperPrivilege(pMnode, RPC_MSG_USER(pReq), RPC_MSG_TOKEN(pReq), MND_OPER_DROP_BNODE), NULL, _OVER);

  if (dropReq.dnodeId <= 0) {
    code = TSDB_CODE_INVALID_MSG;
    goto _OVER;
  }

  pDnode = mndAcquireDnode(pMnode, dropReq.dnodeId);
  if (pDnode == NULL) {
    code = TSDB_CODE_MND_DNODE_NOT_EXIST;
    goto _OVER;
  }

  if (!mndIsDnodeOnline(pDnode, taosGetTimestampMs())) {
    code = TSDB_CODE_DNODE_OFFLINE;
    goto _OVER;
  }

  pObj = mndAcquireBnode(pMnode, dropReq.dnodeId);
  if (pObj == NULL) {
    code = TSDB_CODE_MND_RETURN_VALUE_NULL;
    if (terrno != 0) code = terrno;
    goto _OVER;
  }

  // check deletable
  code = mndDropBnode(pMnode, pReq, pObj);
  if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;

_OVER:
  if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {
    mError("bnode:%d, failed to drop since %s", dropReq.dnodeId, tstrerror(code));
  }

  mndReleaseBnode(pMnode, pObj);
  mndReleaseDnode(pMnode, pDnode);
  tFreeSMDropBnodeReq(&dropReq);
  TAOS_RETURN(code);
}

static const char *mndBnodeProtoStr(int32_t proto) {
  switch (proto) {
    case TSDB_BNODE_OPT_PROTO_MQTT:
      return TSDB_BNODE_OPT_PROTO_STR_MQTT;
    default:
      break;
  }
  return "unknown";
}

static int32_t mndRetrieveBnodes(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows) {
  SMnode    *pMnode = pReq->info.node;
  SSdb      *pSdb = pMnode->pSdb;
  int32_t    numOfRows = 0;
  int32_t    cols = 0;
  SBnodeObj *pObj = NULL;
  char       buf[TSDB_EP_LEN + VARSTR_HEADER_SIZE];

  while (numOfRows < rows) {
    pShow->pIter = sdbFetch(pSdb, SDB_BNODE, pShow->pIter, (void **)&pObj);
    if (pShow->pIter == NULL) break;

    cols = 0;
    SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
    TAOS_CHECK_RETURN_WITH_RELEASE(colDataSetVal(pColInfo, numOfRows, (const char *)&pObj->id, false), pSdb, pObj);

    char mqtt_ep[TSDB_EP_LEN] = {0};
    char ep[TSDB_EP_LEN + VARSTR_HEADER_SIZE] = {0};

    TAOS_UNUSED(tsnprintf(mqtt_ep, TSDB_EP_LEN - 1, "%s:%hu", pObj->pDnode->fqdn, tsMqttPort));
    STR_WITH_MAXSIZE_TO_VARSTR(ep, mqtt_ep, pShow->pMeta->pSchemas[cols].bytes);

    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
    TAOS_CHECK_RETURN_WITH_RELEASE(colDataSetVal(pColInfo, numOfRows, (const char *)ep, false), pSdb, pObj);

    STR_TO_VARSTR(buf, mndBnodeProtoStr(pObj->proto));
    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
    TAOS_CHECK_RETURN_WITH_RELEASE(colDataSetVal(pColInfo, numOfRows, (const char *)buf, false), pSdb, pObj);

    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
    TAOS_CHECK_RETURN_WITH_RELEASE(colDataSetVal(pColInfo, numOfRows, (const char *)&pObj->createdTime, false), pSdb,
                                   pObj);

    numOfRows++;
    sdbRelease(pSdb, pObj);
  }

  pShow->numOfRows += numOfRows;

  return numOfRows;
}

static void mndCancelGetNextBnode(SMnode *pMnode, void *pIter) {
  SSdb *pSdb = pMnode->pSdb;
  sdbCancelFetchByType(pSdb, pIter, SDB_BNODE);
}

SEpSet mndAcquireEpFromBnode(SMnode *pMnode, const SBnodeObj *pBnode) {
  SEpSet epSet = {.numOfEps = 1, .inUse = 0};
  memcpy(epSet.eps[0].fqdn, pBnode->pDnode->fqdn, TSDB_FQDN_LEN);
  epSet.eps[0].port = pBnode->pDnode->port;
  return epSet;
}

SBnodeObj *mndAcquireBnode(SMnode *pMnode, int32_t dnodeId) {
  SBnodeObj *pObj = sdbAcquire(pMnode->pSdb, SDB_BNODE, &dnodeId);
  if (pObj == NULL && terrno == TSDB_CODE_SDB_OBJ_NOT_THERE) {
    terrno = TSDB_CODE_MND_BNODE_NOT_EXIST;
  }
  return pObj;
}

void mndReleaseBnode(SMnode *pMnode, SBnodeObj *pObj) {
  SSdb *pSdb = pMnode->pSdb;
  sdbRelease(pSdb, pObj);
}

int32_t mndInitBnode(SMnode *pMnode) {
  SSdbTable table = {
      .sdbType = SDB_BNODE,
      .keyType = SDB_KEY_INT32,
      .encodeFp = (SdbEncodeFp)mndBnodeActionEncode,
      .decodeFp = (SdbDecodeFp)mndBnodeActionDecode,
      .insertFp = (SdbInsertFp)mndBnodeActionInsert,
      .updateFp = (SdbUpdateFp)mndBnodeActionUpdate,
      .deleteFp = (SdbDeleteFp)mndBnodeActionDelete,
  };

  mndSetMsgHandle(pMnode, TDMT_MND_CREATE_BNODE, mndProcessCreateBnodeReq);
  mndSetMsgHandle(pMnode, TDMT_MND_DROP_BNODE, mndProcessDropBnodeReq);
  mndSetMsgHandle(pMnode, TDMT_DND_CREATE_BNODE_RSP, mndTransProcessRsp);
  mndSetMsgHandle(pMnode, TDMT_DND_DROP_BNODE_RSP, mndTransProcessRsp);

  mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_BNODE, mndRetrieveBnodes);
  mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_BNODE, mndCancelGetNextBnode);

  return sdbSetTable(pMnode->pSdb, table);
}

void mndCleanupBnode(SMnode *pMnode) {}

1	/*
2	* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
3	*
4	* This program is free software: you can use, redistribute, and/or modify
5	* it under the terms of the GNU Affero General Public License, version 3
6	* or later ("AGPL"), as published by the Free Software Foundation.
7	*
8	* This program is distributed in the hope that it will be useful, but WITHOUT
9	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10	* FITNESS FOR A PARTICULAR PURPOSE.
11	*
12	* You should have received a copy of the GNU Affero General Public License
13	* along with this program. If not, see <http://www.gnu.org/licenses/>.
14	*/
15
16	#define _DEFAULT_SOURCE
17	#include "mndBnode.h"
18	#include "mndDnode.h"
19	#include "mndPrivilege.h"
20	#include "mndShow.h"
21	#include "mndTrans.h"
22	#include "mndUser.h"
23
24	#define BNODE_VER_NUMBER 1
25	#define BNODE_RESERVE_SIZE 64
26
27	static SSdbRaw mndBnodeActionEncode(SBnodeObj pObj) {	×
28	int32_t code = 0;	×
29	int32_t lino = 0;	×
30
31	terrno = TSDB_CODE_OUT_OF_MEMORY;	×
32
33	SSdbRaw *pRaw = sdbAllocRaw(SDB_BNODE, BNODE_VER_NUMBER, sizeof(SBnodeObj) + BNODE_RESERVE_SIZE);	×
34	if (pRaw == NULL) goto _OVER;	×
35
36	int32_t dataPos = 0;	×
37	SDB_SET_INT32(pRaw, dataPos, pObj->id, _OVER)	×
38	SDB_SET_INT32(pRaw, dataPos, pObj->proto, _OVER)	×
39	SDB_SET_INT64(pRaw, dataPos, pObj->createdTime, _OVER)	×
40	SDB_SET_INT64(pRaw, dataPos, pObj->updateTime, _OVER)	×
41	SDB_SET_RESERVE(pRaw, dataPos, BNODE_RESERVE_SIZE, _OVER)	×
42
43	terrno = 0;	×
44
45	_OVER:	×
46	if (terrno != 0) {	×
47	mError("bnode:%d, failed to encode to raw:%p since %s", pObj->id, pRaw, terrstr());	×
48	sdbFreeRaw(pRaw);	×
49	return NULL;	×
50	}
51
52	mTrace("bnode:%d, encode to raw:%p, row:%p", pObj->id, pRaw, pObj);	×
53	return pRaw;	×
54	}
55
56	static SSdbRow mndBnodeActionDecode(SSdbRaw pRaw) {	×
57	int32_t code = 0;	×
58	int32_t lino = 0;	×
59	SSdbRow *pRow = NULL;	×
60	SBnodeObj *pObj = NULL;	×
61	int8_t sver = 0;	×
62
63	terrno = TSDB_CODE_OUT_OF_MEMORY;	×
64
65	if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto _OVER;	×
66
67	if (sver != BNODE_VER_NUMBER) {	×
68	terrno = TSDB_CODE_SDB_INVALID_DATA_VER;	×
69	goto _OVER;	×
70	}
71
72	pRow = sdbAllocRow(sizeof(SBnodeObj));	×
73	if (pRow == NULL) goto _OVER;	×
74
75	pObj = sdbGetRowObj(pRow);	×
76	if (pObj == NULL) goto _OVER;	×
77
78	int32_t dataPos = 0;	×
79	SDB_GET_INT32(pRaw, dataPos, &pObj->id, _OVER)	×
80	SDB_GET_INT32(pRaw, dataPos, &pObj->proto, _OVER)	×
81	SDB_GET_INT64(pRaw, dataPos, &pObj->createdTime, _OVER)	×
82	SDB_GET_INT64(pRaw, dataPos, &pObj->updateTime, _OVER)	×
83	SDB_GET_RESERVE(pRaw, dataPos, BNODE_RESERVE_SIZE, _OVER)	×
84
85	terrno = 0;	×
86
87	_OVER:	×
88	if (terrno != 0) {	×
89	mError("bnode:%d, failed to decode from raw:%p since %s", pObj == NULL ? 0 : pObj->id, pRaw, terrstr());	×
90	taosMemoryFreeClear(pRow);	×
91	return NULL;	×
92	}
93
94	mTrace("bnode:%d, decode from raw:%p, row:%p", pObj->id, pRaw, pObj);	×
95	return pRow;	×
96	}
97
98	static int32_t mndBnodeActionInsert(SSdb pSdb, SBnodeObj pObj) {	×
99	mTrace("bnode:%d, perform insert action, row:%p", pObj->id, pObj);	×
100	pObj->pDnode = sdbAcquire(pSdb, SDB_DNODE, &pObj->id);	×
101	if (pObj->pDnode == NULL) {	×
102	terrno = TSDB_CODE_MND_DNODE_NOT_EXIST;	×
103	mError("bnode:%d, failed to perform insert action since %s", pObj->id, terrstr());	×
104	return -1;	×
105	}
106
107	return 0;	×
108	}
109
110	static int32_t mndBnodeActionDelete(SSdb pSdb, SBnodeObj pObj) {	×
111	mTrace("bnode:%d, perform delete action, row:%p", pObj->id, pObj);	×
112	if (pObj->pDnode != NULL) {	×
113	sdbRelease(pSdb, pObj->pDnode);	×
114	pObj->pDnode = NULL;	×
115	}
116
117	return 0;	×
118	}
119
120	static int32_t mndBnodeActionUpdate(SSdb pSdb, SBnodeObj pOld, SBnodeObj *pNew) {	×
121	mTrace("bnode:%d, perform update action, old row:%p new row:%p", pOld->id, pOld, pNew);	×
122	pOld->updateTime = pNew->updateTime;	×
123	return 0;	×
124	}
125
126	static int32_t mndSetCreateBnodeRedoLogs(STrans pTrans, SBnodeObj pObj) {	×
127	int32_t code = 0;	×
128	SSdbRaw *pRedoRaw = mndBnodeActionEncode(pObj);	×
129	if (pRedoRaw == NULL) {	×
130	code = TSDB_CODE_MND_RETURN_VALUE_NULL;	×
131	if (terrno != 0) code = terrno;	×
132	TAOS_RETURN(code);	×
133	}
134	TAOS_CHECK_RETURN(mndTransAppendRedolog(pTrans, pRedoRaw));	×
135	TAOS_CHECK_RETURN(sdbSetRawStatus(pRedoRaw, SDB_STATUS_CREATING));	×
136	TAOS_RETURN(code);	×
137	}
138
139	static int32_t mndSetCreateBnodeUndoLogs(STrans pTrans, SBnodeObj pObj) {	×
140	int32_t code = 0;	×
141	SSdbRaw *pUndoRaw = mndBnodeActionEncode(pObj);	×
142	if (pUndoRaw == NULL) {	×
143	code = TSDB_CODE_MND_RETURN_VALUE_NULL;	×
144	if (terrno != 0) code = terrno;	×
145	TAOS_RETURN(code);	×
146	}
147	TAOS_CHECK_RETURN(mndTransAppendUndolog(pTrans, pUndoRaw));	×
148	TAOS_CHECK_RETURN(sdbSetRawStatus(pUndoRaw, SDB_STATUS_DROPPED));	×
149	TAOS_RETURN(code);	×
150	}
151
152	static int32_t mndSetCreateBnodeCommitLogs(STrans pTrans, SBnodeObj pObj) {	×
153	int32_t code = 0;	×
154	SSdbRaw *pCommitRaw = mndBnodeActionEncode(pObj);	×
155	if (pCommitRaw == NULL) {	×
156	code = TSDB_CODE_MND_RETURN_VALUE_NULL;	×
157	if (terrno != 0) code = terrno;	×
158	TAOS_RETURN(code);	×
159	}
160	TAOS_CHECK_RETURN(mndTransAppendCommitlog(pTrans, pCommitRaw));	×
161	TAOS_CHECK_RETURN(sdbSetRawStatus(pCommitRaw, SDB_STATUS_READY));	×
162	TAOS_RETURN(code);	×
163	}
164
165	static int32_t mndSetCreateBnodeRedoActions(STrans pTrans, SDnodeObj pDnode, SBnodeObj *pObj) {	×
166	int32_t code = 0;	×
167	SDCreateBnodeReq createReq = {0};	×
168	createReq.dnodeId = pDnode->id;	×
169	createReq.bnodeProto = pObj->proto;	×
170
171	int32_t contLen = tSerializeSMCreateBnodeReq(NULL, 0, &createReq);	×
172	void *pReq = taosMemoryMalloc(contLen);	×
173	if (pReq == NULL) {	×
174	code = terrno;	×
175	TAOS_RETURN(code);	×
176	}
177	code = tSerializeSMCreateBnodeReq(pReq, contLen, &createReq);	×
178	if (code < 0) {	×
179	mError("bnode:%d, failed to serialize create drop bnode request since %s", createReq.dnodeId, terrstr());	×
180
181	taosMemoryFree(pReq);	×
182	TAOS_RETURN(code);	×
183	}
184
185	STransAction action = {0};	×
186	action.epSet = mndGetDnodeEpset(pDnode);	×
187	action.pCont = pReq;	×
188	action.contLen = contLen;	×
189	action.msgType = TDMT_DND_CREATE_BNODE;	×
190	action.acceptableCode = TSDB_CODE_BNODE_ALREADY_DEPLOYED;	×
191
192	if ((code = mndTransAppendRedoAction(pTrans, &action)) != 0) {	×
193	taosMemoryFree(pReq);	×
194	TAOS_RETURN(code);	×
195	}
196
197	TAOS_RETURN(code);	×
198	}
199
200	static int32_t mndSetCreateBnodeUndoActions(STrans pTrans, SDnodeObj pDnode, SBnodeObj *pObj) {	×
201	int32_t code = 0;	×
202	SDDropBnodeReq dropReq = {0};	×
203	dropReq.dnodeId = pDnode->id;	×
204
205	int32_t contLen = tSerializeSMDropBnodeReq(NULL, 0, &dropReq);	×
206	void *pReq = taosMemoryMalloc(contLen);	×
207	if (pReq == NULL) {	×
208	code = terrno;	×
209	TAOS_RETURN(code);	×
210	}
211	code = tSerializeSMDropBnodeReq(pReq, contLen, &dropReq);	×
212	if (code < 0) {	×
213	mError("bnode:%d, failed to serialize create drop bnode request since %s", dropReq.dnodeId, terrstr());	×
214	}
215
216	STransAction action = {0};	×
217	action.epSet = mndGetDnodeEpset(pDnode);	×
218	action.pCont = pReq;	×
219	action.contLen = contLen;	×
220	action.msgType = TDMT_DND_DROP_BNODE;	×
221	action.acceptableCode = TSDB_CODE_BNODE_NOT_DEPLOYED;	×
222
223	if ((code = mndTransAppendUndoAction(pTrans, &action)) != 0) {	×
224	taosMemoryFree(pReq);	×
225	TAOS_RETURN(code);	×
226	}
227
228	TAOS_RETURN(code);	×
229	}
230
231	static int32_t mndCreateBnode(SMnode pMnode, SRpcMsg pReq, SDnodeObj pDnode, SMCreateBnodeReq pCreate) {	×
232	int32_t code = -1;	×
233
234	SBnodeObj bnodeObj = {0};	×
235	bnodeObj.id = pDnode->id;	×
236	bnodeObj.proto = pCreate->bnodeProto;	×
237	bnodeObj.createdTime = taosGetTimestampMs();	×
238	bnodeObj.updateTime = bnodeObj.createdTime;	×
239
240	STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_CONFLICT_NOTHING, pReq, "create-bnode");	×
241	if (pTrans == NULL) {	×
242	code = TSDB_CODE_MND_RETURN_VALUE_NULL;	×
243	if (terrno != 0) code = terrno;	×
244	goto _OVER;	×
245	}
246	mndTransSetSerial(pTrans);	×
247
248	mInfo("trans:%d, to create bnode:%d %d", pTrans->id, pCreate->dnodeId, pCreate->bnodeProto);	×
249
250	TAOS_CHECK_GOTO(mndSetCreateBnodeRedoLogs(pTrans, &bnodeObj), NULL, _OVER);	×
251	TAOS_CHECK_GOTO(mndSetCreateBnodeUndoLogs(pTrans, &bnodeObj), NULL, _OVER);	×
252	TAOS_CHECK_GOTO(mndSetCreateBnodeCommitLogs(pTrans, &bnodeObj), NULL, _OVER);	×
253	TAOS_CHECK_GOTO(mndSetCreateBnodeRedoActions(pTrans, pDnode, &bnodeObj), NULL, _OVER);	×
254	TAOS_CHECK_GOTO(mndSetCreateBnodeUndoActions(pTrans, pDnode, &bnodeObj), NULL, _OVER);	×
255	TAOS_CHECK_GOTO(mndTransPrepare(pMnode, pTrans), NULL, _OVER);	×
256
257	code = 0;	×
258
259	_OVER:	×
260	mndTransDrop(pTrans);	×
261	TAOS_RETURN(code);	×
262	}
263
264	static int32_t mndProcessCreateBnodeReq(SRpcMsg *pReq) {	×
265	SMnode *pMnode = pReq->info.node;	×
266	int32_t code = -1;	×
267	SBnodeObj *pObj = NULL;	×
268	SDnodeObj *pDnode = NULL;	×
269	SMCreateBnodeReq createReq = {0};	×
270
271	#ifdef LINUX
272
273	TAOS_CHECK_GOTO(tDeserializeSMCreateBnodeReq(pReq->pCont, pReq->contLen, &createReq), NULL, _OVER);	×
274
275	mInfo("bnode:%d, start to create", createReq.dnodeId);	×
276	TAOS_CHECK_GOTO(mndCheckOperPrivilege(pMnode, RPC_MSG_USER(pReq), RPC_MSG_TOKEN(pReq), MND_OPER_CREATE_BNODE), NULL, _OVER);	×
277
278	pObj = mndAcquireBnode(pMnode, createReq.dnodeId);	×
279	if (pObj != NULL) {	×
280	code = terrno = TSDB_CODE_MND_BNODE_ALREADY_EXIST;	×
281	goto _OVER;	×
282	} else if (terrno != TSDB_CODE_MND_BNODE_NOT_EXIST) {	×
283	code = terrno;	×
284	goto _OVER;	×
285	}
286
287	pDnode = mndAcquireDnode(pMnode, createReq.dnodeId);	×
288	if (pDnode == NULL) {	×
289	code = TSDB_CODE_MND_DNODE_NOT_EXIST;	×
290	goto _OVER;	×
291	}
292
293	code = mndCreateBnode(pMnode, pReq, pDnode, &createReq);	×
294	if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;	×
295
296	_OVER:	×
297	if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {	×
298	mError("bnode:%d, failed to create since %s", createReq.dnodeId, tstrerror(code));	×
299	TAOS_RETURN(code);	×
300	}
301
302	// mndReleaseBnode(pMnode, pObj);
303	mndReleaseDnode(pMnode, pDnode);	×
304	tFreeSMCreateBnodeReq(&createReq);	×
305
306	#else
307
308	code = TSDB_CODE_OPS_NOT_SUPPORT;
309
310	#endif
311
312	TAOS_RETURN(code);	×
313	}
314
315	static int32_t mndSetDropBnodeRedoLogs(STrans pTrans, SBnodeObj pObj) {	×
316	int32_t code = 0, lino = 0;	×
317
318	SSdbRaw *pRedoRaw = mndBnodeActionEncode(pObj);	×
319	if (pRedoRaw == NULL) {	×
320	code = TSDB_CODE_MND_RETURN_VALUE_NULL;	×
321	if (terrno != 0) code = terrno;	×
322	TAOS_RETURN(code);	×
323	}
324	TAOS_CHECK_GOTO(mndTransAppendGroupRedolog(pTrans, pRedoRaw, -1), &lino, _OVER);	×
325	TAOS_CHECK_GOTO(sdbSetRawStatus(pRedoRaw, SDB_STATUS_DROPPING), &lino, _OVER);	×
326
327	_OVER:	×
328	if (code != 0) {	×
329	mError("bnode:%d, failed to drop bnode at line:%d since %s", pObj->id, lino, tstrerror(code));	×
330	}
331
332	TAOS_RETURN(code);	×
333	}
334
335	static int32_t mndSetDropBnodeCommitLogs(STrans pTrans, SBnodeObj pObj) {	×
336	int32_t code = 0;	×
337	SSdbRaw *pCommitRaw = mndBnodeActionEncode(pObj);	×
338	if (pCommitRaw == NULL) {	×
339	code = TSDB_CODE_MND_RETURN_VALUE_NULL;	×
340	if (terrno != 0) code = terrno;	×
341	TAOS_RETURN(code);	×
342	}
343	TAOS_CHECK_RETURN(mndTransAppendCommitlog(pTrans, pCommitRaw));	×
344	TAOS_CHECK_RETURN(sdbSetRawStatus(pCommitRaw, SDB_STATUS_DROPPED));	×
345	TAOS_RETURN(code);	×
346	}
347
348	static int32_t mndSetDropBnodeRedoActions(STrans pTrans, SDnodeObj pDnode, SBnodeObj *pObj) {	×
349	int32_t code = 0;	×
350	SDDropBnodeReq dropReq = {0};	×
351	dropReq.dnodeId = pDnode->id;	×
352
353	int32_t contLen = tSerializeSMDropBnodeReq(NULL, 0, &dropReq);	×
354	void *pReq = taosMemoryMalloc(contLen);	×
355	if (pReq == NULL) {	×
356	code = terrno;	×
357	TAOS_RETURN(code);	×
358	}
359	code = tSerializeSMDropBnodeReq(pReq, contLen, &dropReq);	×
360	if (code < 0) {	×
361	mError("bnode:%d, failed to serialize create drop bnode request since %s", dropReq.dnodeId, terrstr());	×
362	}
363
364	STransAction action = {0};	×
365	action.epSet = mndGetDnodeEpset(pDnode);	×
366	action.pCont = pReq;	×
367	action.contLen = contLen;	×
368	action.msgType = TDMT_DND_DROP_BNODE;	×
369	action.acceptableCode = TSDB_CODE_BNODE_NOT_DEPLOYED;	×
370
371	if ((code = mndTransAppendRedoAction(pTrans, &action)) != 0) {	×
372	taosMemoryFree(pReq);	×
373	TAOS_RETURN(code);	×
374	}
375
376	TAOS_RETURN(code);	×
377	}
378
379	int32_t mndSetDropBnodeInfoToTrans(SMnode pMnode, STrans pTrans, SBnodeObj *pObj, bool force) {	×
380	int32_t code = -1, lino = 0;	×
381
382	if (pObj == NULL) return 0;	×
383	TAOS_CHECK_GOTO(mndSetDropBnodeRedoLogs(pTrans, pObj), &lino, _OVER);	×
384	TAOS_CHECK_GOTO(mndSetDropBnodeCommitLogs(pTrans, pObj), &lino, _OVER);	×
385	if (!force) {	×
386	TAOS_CHECK_GOTO(mndSetDropBnodeRedoActions(pTrans, pObj->pDnode, pObj), &lino, _OVER);	×
387	}
388
389	_OVER:	×
390	if (code != 0) {	×
391	mError("bnode:%d, failed to drop bnode at line:%d since %s", pObj->id, lino, tstrerror(code));	×
392	}
393
394	return code;	×
395	}
396
397	static int32_t mndDropBnode(SMnode pMnode, SRpcMsg pReq, SBnodeObj *pObj) {	×
398	int32_t code = -1;	×
399
400	STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_CONFLICT_NOTHING, pReq, "drop-bnode");	×
401	if (pTrans == NULL) {	×
402	code = TSDB_CODE_MND_RETURN_VALUE_NULL;	×
403	if (terrno != 0) code = terrno;	×
404	goto _OVER;	×
405	}
406	mndTransSetSerial(pTrans);	×
407
408	mInfo("trans:%d, used to drop bnode:%d", pTrans->id, pObj->id);	×
409	TAOS_CHECK_GOTO(mndSetDropBnodeInfoToTrans(pMnode, pTrans, pObj, false), NULL, _OVER);	×
410	TAOS_CHECK_GOTO(mndTransPrepare(pMnode, pTrans), NULL, _OVER);	×
411
412	code = 0;	×
413
414	_OVER:	×
415	mndTransDrop(pTrans);	×
416	TAOS_RETURN(code);	×
417	}
418
419	static int32_t mndProcessDropBnodeReq(SRpcMsg *pReq) {	×
420	SMnode *pMnode = pReq->info.node;	×
421	int32_t code = -1;	×
422	SBnodeObj *pObj = NULL;	×
423	SDnodeObj *pDnode = NULL;	×
424	SMDropBnodeReq dropReq = {0};	×
425
426	TAOS_CHECK_GOTO(tDeserializeSMDropBnodeReq(pReq->pCont, pReq->contLen, &dropReq), NULL, _OVER);	×
427
428	mInfo("bnode:%d, start to drop", dropReq.dnodeId);	×
429	TAOS_CHECK_GOTO(mndCheckOperPrivilege(pMnode, RPC_MSG_USER(pReq), RPC_MSG_TOKEN(pReq), MND_OPER_DROP_BNODE), NULL, _OVER);	×
430
431	if (dropReq.dnodeId <= 0) {	×
432	code = TSDB_CODE_INVALID_MSG;	×
433	goto _OVER;	×
434	}
435
436	pDnode = mndAcquireDnode(pMnode, dropReq.dnodeId);	×
437	if (pDnode == NULL) {	×
438	code = TSDB_CODE_MND_DNODE_NOT_EXIST;	×
439	goto _OVER;	×
440	}
441
442	if (!mndIsDnodeOnline(pDnode, taosGetTimestampMs())) {	×
443	code = TSDB_CODE_DNODE_OFFLINE;	×
444	goto _OVER;	×
445	}
446
447	pObj = mndAcquireBnode(pMnode, dropReq.dnodeId);	×
448	if (pObj == NULL) {	×
449	code = TSDB_CODE_MND_RETURN_VALUE_NULL;	×
450	if (terrno != 0) code = terrno;	×
451	goto _OVER;	×
452	}
453
454	// check deletable
455	code = mndDropBnode(pMnode, pReq, pObj);	×
456	if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;	×
457
458	_OVER:	×
459	if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {	×
460	mError("bnode:%d, failed to drop since %s", dropReq.dnodeId, tstrerror(code));	×
461	}
462
463	mndReleaseBnode(pMnode, pObj);	×
464	mndReleaseDnode(pMnode, pDnode);	×
465	tFreeSMDropBnodeReq(&dropReq);	×
466	TAOS_RETURN(code);	×
467	}
468
469	static const char *mndBnodeProtoStr(int32_t proto) {	×
470	switch (proto) {	×
471	case TSDB_BNODE_OPT_PROTO_MQTT:	×
472	return TSDB_BNODE_OPT_PROTO_STR_MQTT;	×
473	default:	×
474	break;	×
475	}
476	return "unknown";	×
477	}
478
479	static int32_t mndRetrieveBnodes(SRpcMsg pReq, SShowObj pShow, SSDataBlock *pBlock, int32_t rows) {	×
480	SMnode *pMnode = pReq->info.node;	×
481	SSdb *pSdb = pMnode->pSdb;	×
482	int32_t numOfRows = 0;	×
483	int32_t cols = 0;	×
484	SBnodeObj *pObj = NULL;	×
485	char buf[TSDB_EP_LEN + VARSTR_HEADER_SIZE];
486
487	while (numOfRows < rows) {	×
488	pShow->pIter = sdbFetch(pSdb, SDB_BNODE, pShow->pIter, (void **)&pObj);	×
489	if (pShow->pIter == NULL) break;	×
490
491	cols = 0;	×
492	SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);	×
493	TAOS_CHECK_RETURN_WITH_RELEASE(colDataSetVal(pColInfo, numOfRows, (const char *)&pObj->id, false), pSdb, pObj);	×
494
495	char mqtt_ep[TSDB_EP_LEN] = {0};	×
496	char ep[TSDB_EP_LEN + VARSTR_HEADER_SIZE] = {0};	×
497
498	TAOS_UNUSED(tsnprintf(mqtt_ep, TSDB_EP_LEN - 1, "%s:%hu", pObj->pDnode->fqdn, tsMqttPort));	×
499	STR_WITH_MAXSIZE_TO_VARSTR(ep, mqtt_ep, pShow->pMeta->pSchemas[cols].bytes);	×
500
501	pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);	×
502	TAOS_CHECK_RETURN_WITH_RELEASE(colDataSetVal(pColInfo, numOfRows, (const char *)ep, false), pSdb, pObj);	×
503
504	STR_TO_VARSTR(buf, mndBnodeProtoStr(pObj->proto));	×
505	pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);	×
506	TAOS_CHECK_RETURN_WITH_RELEASE(colDataSetVal(pColInfo, numOfRows, (const char *)buf, false), pSdb, pObj);	×
507
508	pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);	×
509	TAOS_CHECK_RETURN_WITH_RELEASE(colDataSetVal(pColInfo, numOfRows, (const char *)&pObj->createdTime, false), pSdb,	×
510	pObj);
511
512	numOfRows++;	×
513	sdbRelease(pSdb, pObj);	×
514	}
515
516	pShow->numOfRows += numOfRows;	×
517
518	return numOfRows;	×
519	}
520
521	static void mndCancelGetNextBnode(SMnode pMnode, void pIter) {	×
522	SSdb *pSdb = pMnode->pSdb;	×
523	sdbCancelFetchByType(pSdb, pIter, SDB_BNODE);	×
524	}	×
525
526	SEpSet mndAcquireEpFromBnode(SMnode pMnode, const SBnodeObj pBnode) {	×
527	SEpSet epSet = {.numOfEps = 1, .inUse = 0};	×
528	memcpy(epSet.eps[0].fqdn, pBnode->pDnode->fqdn, TSDB_FQDN_LEN);	×
529	epSet.eps[0].port = pBnode->pDnode->port;	×
530	return epSet;	×
531	}
532
533	SBnodeObj mndAcquireBnode(SMnode pMnode, int32_t dnodeId) {	×
534	SBnodeObj *pObj = sdbAcquire(pMnode->pSdb, SDB_BNODE, &dnodeId);	×
535	if (pObj == NULL && terrno == TSDB_CODE_SDB_OBJ_NOT_THERE) {	×
536	terrno = TSDB_CODE_MND_BNODE_NOT_EXIST;	×
537	}
538	return pObj;	×
539	}
540
541	void mndReleaseBnode(SMnode pMnode, SBnodeObj pObj) {	×
542	SSdb *pSdb = pMnode->pSdb;	×
543	sdbRelease(pSdb, pObj);	×
544	}	×
545
546	int32_t mndInitBnode(SMnode *pMnode) {	16✔
547	SSdbTable table = {	16✔
548	.sdbType = SDB_BNODE,
549	.keyType = SDB_KEY_INT32,
550	.encodeFp = (SdbEncodeFp)mndBnodeActionEncode,
551	.decodeFp = (SdbDecodeFp)mndBnodeActionDecode,
552	.insertFp = (SdbInsertFp)mndBnodeActionInsert,
553	.updateFp = (SdbUpdateFp)mndBnodeActionUpdate,
554	.deleteFp = (SdbDeleteFp)mndBnodeActionDelete,
555	};
556
557	mndSetMsgHandle(pMnode, TDMT_MND_CREATE_BNODE, mndProcessCreateBnodeReq);	16✔
558	mndSetMsgHandle(pMnode, TDMT_MND_DROP_BNODE, mndProcessDropBnodeReq);	16✔
559	mndSetMsgHandle(pMnode, TDMT_DND_CREATE_BNODE_RSP, mndTransProcessRsp);	16✔
560	mndSetMsgHandle(pMnode, TDMT_DND_DROP_BNODE_RSP, mndTransProcessRsp);	16✔
561
562	mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_BNODE, mndRetrieveBnodes);	16✔
563	mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_BNODE, mndCancelGetNextBnode);	16✔
564
565	return sdbSetTable(pMnode->pSdb, table);	16✔
566	}
567
568	void mndCleanupBnode(SMnode *pMnode) {}	16✔

taosdata / TDengine / #4986

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