1168 lines
38 KiB
C
1168 lines
38 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define _DEFAULT_SOURCE
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#include "mndVgroup.h"
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#include "mndAuth.h"
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#include "mndDb.h"
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#include "mndDnode.h"
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#include "mndMnode.h"
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#include "mndShow.h"
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#include "mndTrans.h"
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#include "mndUser.h"
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#define VGROUP_VER_NUMBER 1
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#define VGROUP_RESERVE_SIZE 64
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static SSdbRow *mndVgroupActionDecode(SSdbRaw *pRaw);
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static int32_t mndVgroupActionInsert(SSdb *pSdb, SVgObj *pVgroup);
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static int32_t mndVgroupActionDelete(SSdb *pSdb, SVgObj *pVgroup);
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static int32_t mndVgroupActionUpdate(SSdb *pSdb, SVgObj *pOld, SVgObj *pNew);
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static int32_t mndRetrieveVgroups(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows);
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static void mndCancelGetNextVgroup(SMnode *pMnode, void *pIter);
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static int32_t mndRetrieveVnodes(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows);
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static void mndCancelGetNextVnode(SMnode *pMnode, void *pIter);
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static int32_t mndProcessRedistributeVgroupMsg(SRpcMsg *pReq);
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static int32_t mndProcessSplitVgroupMsg(SRpcMsg *pReq);
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int32_t mndInitVgroup(SMnode *pMnode) {
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SSdbTable table = {
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.sdbType = SDB_VGROUP,
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.keyType = SDB_KEY_INT32,
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.encodeFp = (SdbEncodeFp)mndVgroupActionEncode,
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.decodeFp = (SdbDecodeFp)mndVgroupActionDecode,
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.insertFp = (SdbInsertFp)mndVgroupActionInsert,
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.updateFp = (SdbUpdateFp)mndVgroupActionUpdate,
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.deleteFp = (SdbDeleteFp)mndVgroupActionDelete,
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};
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mndSetMsgHandle(pMnode, TDMT_DND_CREATE_VNODE_RSP, mndTransProcessRsp);
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mndSetMsgHandle(pMnode, TDMT_VND_ALTER_REPLICA_RSP, mndTransProcessRsp);
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mndSetMsgHandle(pMnode, TDMT_VND_ALTER_CONFIG_RSP, mndTransProcessRsp);
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mndSetMsgHandle(pMnode, TDMT_VND_ALTER_CONFIRM_RSP, mndTransProcessRsp);
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mndSetMsgHandle(pMnode, TDMT_DND_DROP_VNODE_RSP, mndTransProcessRsp);
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mndSetMsgHandle(pMnode, TDMT_VND_COMPACT_RSP, mndTransProcessRsp);
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mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_VGROUP, mndRetrieveVgroups);
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mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_VGROUP, mndCancelGetNextVgroup);
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mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_VNODES, mndRetrieveVnodes);
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mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_VNODES, mndCancelGetNextVnode);
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return sdbSetTable(pMnode->pSdb, table);
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}
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void mndCleanupVgroup(SMnode *pMnode) {}
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SSdbRaw *mndVgroupActionEncode(SVgObj *pVgroup) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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SSdbRaw *pRaw = sdbAllocRaw(SDB_VGROUP, VGROUP_VER_NUMBER, sizeof(SVgObj) + VGROUP_RESERVE_SIZE);
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if (pRaw == NULL) goto _OVER;
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int32_t dataPos = 0;
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SDB_SET_INT32(pRaw, dataPos, pVgroup->vgId, _OVER)
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SDB_SET_INT64(pRaw, dataPos, pVgroup->createdTime, _OVER)
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SDB_SET_INT64(pRaw, dataPos, pVgroup->updateTime, _OVER)
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SDB_SET_INT32(pRaw, dataPos, pVgroup->version, _OVER)
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SDB_SET_INT32(pRaw, dataPos, pVgroup->hashBegin, _OVER)
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SDB_SET_INT32(pRaw, dataPos, pVgroup->hashEnd, _OVER)
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SDB_SET_BINARY(pRaw, dataPos, pVgroup->dbName, TSDB_DB_FNAME_LEN, _OVER)
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SDB_SET_INT64(pRaw, dataPos, pVgroup->dbUid, _OVER)
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SDB_SET_INT8(pRaw, dataPos, pVgroup->isTsma, _OVER)
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SDB_SET_INT8(pRaw, dataPos, pVgroup->replica, _OVER)
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for (int8_t i = 0; i < pVgroup->replica; ++i) {
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SVnodeGid *pVgid = &pVgroup->vnodeGid[i];
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SDB_SET_INT32(pRaw, dataPos, pVgid->dnodeId, _OVER)
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}
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SDB_SET_RESERVE(pRaw, dataPos, VGROUP_RESERVE_SIZE, _OVER)
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SDB_SET_DATALEN(pRaw, dataPos, _OVER)
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terrno = 0;
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_OVER:
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if (terrno != 0) {
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mError("vgId:%d, failed to encode to raw:%p since %s", pVgroup->vgId, pRaw, terrstr());
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sdbFreeRaw(pRaw);
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return NULL;
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}
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mTrace("vgId:%d, encode to raw:%p, row:%p", pVgroup->vgId, pRaw, pVgroup);
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return pRaw;
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}
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SSdbRow *mndVgroupActionDecode(SSdbRaw *pRaw) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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int8_t sver = 0;
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if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto _OVER;
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if (sver != VGROUP_VER_NUMBER) {
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terrno = TSDB_CODE_SDB_INVALID_DATA_VER;
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goto _OVER;
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}
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SSdbRow *pRow = sdbAllocRow(sizeof(SVgObj));
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if (pRow == NULL) goto _OVER;
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SVgObj *pVgroup = sdbGetRowObj(pRow);
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if (pVgroup == NULL) goto _OVER;
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int32_t dataPos = 0;
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SDB_GET_INT32(pRaw, dataPos, &pVgroup->vgId, _OVER)
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SDB_GET_INT64(pRaw, dataPos, &pVgroup->createdTime, _OVER)
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SDB_GET_INT64(pRaw, dataPos, &pVgroup->updateTime, _OVER)
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SDB_GET_INT32(pRaw, dataPos, &pVgroup->version, _OVER)
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SDB_GET_INT32(pRaw, dataPos, &pVgroup->hashBegin, _OVER)
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SDB_GET_INT32(pRaw, dataPos, &pVgroup->hashEnd, _OVER)
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SDB_GET_BINARY(pRaw, dataPos, pVgroup->dbName, TSDB_DB_FNAME_LEN, _OVER)
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SDB_GET_INT64(pRaw, dataPos, &pVgroup->dbUid, _OVER)
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SDB_GET_INT8(pRaw, dataPos, &pVgroup->isTsma, _OVER)
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SDB_GET_INT8(pRaw, dataPos, &pVgroup->replica, _OVER)
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for (int8_t i = 0; i < pVgroup->replica; ++i) {
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SVnodeGid *pVgid = &pVgroup->vnodeGid[i];
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SDB_GET_INT32(pRaw, dataPos, &pVgid->dnodeId, _OVER)
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if (pVgroup->replica == 1) {
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pVgid->role = TAOS_SYNC_STATE_LEADER;
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}
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}
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SDB_GET_RESERVE(pRaw, dataPos, VGROUP_RESERVE_SIZE, _OVER)
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terrno = 0;
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_OVER:
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if (terrno != 0) {
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mError("vgId:%d, failed to decode from raw:%p since %s", pVgroup->vgId, pRaw, terrstr());
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taosMemoryFreeClear(pRow);
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return NULL;
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}
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mTrace("vgId:%d, decode from raw:%p, row:%p", pVgroup->vgId, pRaw, pVgroup);
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return pRow;
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}
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static int32_t mndVgroupActionInsert(SSdb *pSdb, SVgObj *pVgroup) {
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mTrace("vgId:%d, perform insert action, row:%p", pVgroup->vgId, pVgroup);
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return 0;
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}
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static int32_t mndVgroupActionDelete(SSdb *pSdb, SVgObj *pVgroup) {
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mTrace("vgId:%d, perform delete action, row:%p", pVgroup->vgId, pVgroup);
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return 0;
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}
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static int32_t mndVgroupActionUpdate(SSdb *pSdb, SVgObj *pOld, SVgObj *pNew) {
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mTrace("vgId:%d, perform update action, old row:%p new row:%p", pOld->vgId, pOld, pNew);
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pOld->updateTime = pNew->updateTime;
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pOld->version = pNew->version;
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pOld->hashBegin = pNew->hashBegin;
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pOld->hashEnd = pNew->hashEnd;
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pOld->replica = pNew->replica;
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pOld->isTsma = pNew->isTsma;
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memcpy(pOld->vnodeGid, pNew->vnodeGid, TSDB_MAX_REPLICA * sizeof(SVnodeGid));
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return 0;
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}
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SVgObj *mndAcquireVgroup(SMnode *pMnode, int32_t vgId) {
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SSdb *pSdb = pMnode->pSdb;
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SVgObj *pVgroup = sdbAcquire(pSdb, SDB_VGROUP, &vgId);
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if (pVgroup == NULL && terrno == TSDB_CODE_SDB_OBJ_NOT_THERE) {
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terrno = TSDB_CODE_MND_VGROUP_NOT_EXIST;
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}
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return pVgroup;
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}
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void mndReleaseVgroup(SMnode *pMnode, SVgObj *pVgroup) {
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SSdb *pSdb = pMnode->pSdb;
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sdbRelease(pSdb, pVgroup);
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}
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void *mndBuildCreateVnodeReq(SMnode *pMnode, SDnodeObj *pDnode, SDbObj *pDb, SVgObj *pVgroup, int32_t *pContLen,
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bool standby) {
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SCreateVnodeReq createReq = {0};
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createReq.vgId = pVgroup->vgId;
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memcpy(createReq.db, pDb->name, TSDB_DB_FNAME_LEN);
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createReq.dbUid = pDb->uid;
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createReq.vgVersion = pVgroup->version;
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createReq.numOfStables = pDb->cfg.numOfStables;
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createReq.buffer = pDb->cfg.buffer;
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createReq.pageSize = pDb->cfg.pageSize;
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createReq.pages = pDb->cfg.pages;
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createReq.daysPerFile = pDb->cfg.daysPerFile;
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createReq.daysToKeep0 = pDb->cfg.daysToKeep0;
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createReq.daysToKeep1 = pDb->cfg.daysToKeep1;
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createReq.daysToKeep2 = pDb->cfg.daysToKeep2;
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createReq.minRows = pDb->cfg.minRows;
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createReq.maxRows = pDb->cfg.maxRows;
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createReq.fsyncPeriod = pDb->cfg.fsyncPeriod;
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createReq.walLevel = pDb->cfg.walLevel;
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createReq.precision = pDb->cfg.precision;
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createReq.compression = pDb->cfg.compression;
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createReq.strict = pDb->cfg.strict;
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createReq.cacheLastRow = pDb->cfg.cacheLastRow;
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createReq.replica = pVgroup->replica;
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createReq.selfIndex = -1;
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createReq.hashBegin = pVgroup->hashBegin;
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createReq.hashEnd = pVgroup->hashEnd;
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createReq.hashMethod = pDb->cfg.hashMethod;
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createReq.numOfRetensions = pDb->cfg.numOfRetensions;
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createReq.pRetensions = pDb->cfg.pRetensions;
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createReq.standby = standby;
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createReq.isTsma = pVgroup->isTsma;
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createReq.pTsma = pVgroup->pTsma;
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for (int32_t v = 0; v < pVgroup->replica; ++v) {
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SReplica *pReplica = &createReq.replicas[v];
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SVnodeGid *pVgid = &pVgroup->vnodeGid[v];
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SDnodeObj *pVgidDnode = mndAcquireDnode(pMnode, pVgid->dnodeId);
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if (pVgidDnode == NULL) {
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return NULL;
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}
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pReplica->id = pVgidDnode->id;
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pReplica->port = pVgidDnode->port;
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memcpy(pReplica->fqdn, pVgidDnode->fqdn, TSDB_FQDN_LEN);
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mndReleaseDnode(pMnode, pVgidDnode);
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if (pDnode->id == pVgid->dnodeId) {
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createReq.selfIndex = v;
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}
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}
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if (createReq.selfIndex == -1) {
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terrno = TSDB_CODE_MND_APP_ERROR;
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return NULL;
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}
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int32_t contLen = tSerializeSCreateVnodeReq(NULL, 0, &createReq);
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if (contLen < 0) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return NULL;
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}
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void *pReq = taosMemoryMalloc(contLen);
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if (pReq == NULL) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return NULL;
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}
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tSerializeSCreateVnodeReq(pReq, contLen, &createReq);
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*pContLen = contLen;
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return pReq;
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}
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void *mndBuildAlterVnodeReq(SMnode *pMnode, SDbObj *pDb, SVgObj *pVgroup, int32_t *pContLen) {
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SAlterVnodeReq alterReq = {0};
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alterReq.vgVersion = pVgroup->version;
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alterReq.buffer = pDb->cfg.buffer;
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alterReq.pages = pDb->cfg.pages;
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alterReq.pageSize = pDb->cfg.pageSize;
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alterReq.daysPerFile = pDb->cfg.daysPerFile;
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alterReq.daysToKeep0 = pDb->cfg.daysToKeep0;
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alterReq.daysToKeep1 = pDb->cfg.daysToKeep1;
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alterReq.daysToKeep2 = pDb->cfg.daysToKeep2;
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alterReq.fsyncPeriod = pDb->cfg.fsyncPeriod;
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alterReq.walLevel = pDb->cfg.walLevel;
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alterReq.strict = pDb->cfg.strict;
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alterReq.cacheLastRow = pDb->cfg.cacheLastRow;
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alterReq.replica = pVgroup->replica;
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for (int32_t v = 0; v < pVgroup->replica; ++v) {
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SReplica *pReplica = &alterReq.replicas[v];
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SVnodeGid *pVgid = &pVgroup->vnodeGid[v];
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SDnodeObj *pVgidDnode = mndAcquireDnode(pMnode, pVgid->dnodeId);
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if (pVgidDnode == NULL) {
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return NULL;
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}
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pReplica->id = pVgidDnode->id;
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pReplica->port = pVgidDnode->port;
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memcpy(pReplica->fqdn, pVgidDnode->fqdn, TSDB_FQDN_LEN);
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mndReleaseDnode(pMnode, pVgidDnode);
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}
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int32_t contLen = tSerializeSAlterVnodeReq(NULL, 0, &alterReq);
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if (contLen < 0) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return NULL;
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}
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contLen += +sizeof(SMsgHead);
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void *pReq = taosMemoryMalloc(contLen);
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if (pReq == NULL) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return NULL;
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}
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SMsgHead *pHead = pReq;
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pHead->contLen = htonl(contLen);
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pHead->vgId = htonl(pVgroup->vgId);
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tSerializeSAlterVnodeReq((char *)pReq + sizeof(SMsgHead), contLen, &alterReq);
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*pContLen = contLen;
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return pReq;
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}
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void *mndBuildDropVnodeReq(SMnode *pMnode, SDnodeObj *pDnode, SDbObj *pDb, SVgObj *pVgroup, int32_t *pContLen) {
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SDropVnodeReq dropReq = {0};
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dropReq.dnodeId = pDnode->id;
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dropReq.vgId = pVgroup->vgId;
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memcpy(dropReq.db, pDb->name, TSDB_DB_FNAME_LEN);
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dropReq.dbUid = pDb->uid;
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int32_t contLen = tSerializeSDropVnodeReq(NULL, 0, &dropReq);
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if (contLen < 0) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return NULL;
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}
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void *pReq = taosMemoryMalloc(contLen);
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if (pReq == NULL) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return NULL;
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}
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tSerializeSDropVnodeReq(pReq, contLen, &dropReq);
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*pContLen = contLen;
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return pReq;
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}
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static bool mndResetDnodesArrayFp(SMnode *pMnode, void *pObj, void *p1, void *p2, void *p3) {
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SDnodeObj *pDnode = pObj;
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pDnode->numOfVnodes = 0;
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return true;
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}
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static bool mndBuildDnodesArrayFp(SMnode *pMnode, void *pObj, void *p1, void *p2, void *p3) {
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SDnodeObj *pDnode = pObj;
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SArray *pArray = p1;
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int32_t exceptDnodeId = *(int32_t *)p2;
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if (exceptDnodeId == pDnode->id) {
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return true;
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}
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int64_t curMs = taosGetTimestampMs();
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bool online = mndIsDnodeOnline(pDnode, curMs);
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bool isMnode = mndIsMnode(pMnode, pDnode->id);
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pDnode->numOfVnodes = mndGetVnodesNum(pMnode, pDnode->id);
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mDebug("dnode:%d, vnodes:%d support_vnodes:%d is_mnode:%d online:%d", pDnode->id, pDnode->numOfVnodes,
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pDnode->numOfSupportVnodes, isMnode, online);
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if (isMnode) {
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pDnode->numOfVnodes++;
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}
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if (online && pDnode->numOfSupportVnodes > 0) {
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taosArrayPush(pArray, pDnode);
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}
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return true;
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}
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SArray *mndBuildDnodesArray(SMnode *pMnode, int32_t exceptDnodeId) {
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SSdb *pSdb = pMnode->pSdb;
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int32_t numOfDnodes = mndGetDnodeSize(pMnode);
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SArray *pArray = taosArrayInit(numOfDnodes, sizeof(SDnodeObj));
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if (pArray == NULL) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return NULL;
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}
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sdbTraverse(pSdb, SDB_DNODE, mndResetDnodesArrayFp, NULL, NULL, NULL);
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sdbTraverse(pSdb, SDB_DNODE, mndBuildDnodesArrayFp, pArray, &exceptDnodeId, NULL);
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return pArray;
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}
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static int32_t mndCompareDnodeVnodes(SDnodeObj *pDnode1, SDnodeObj *pDnode2) {
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float d1Score = (float)pDnode1->numOfVnodes / pDnode1->numOfSupportVnodes;
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float d2Score = (float)pDnode2->numOfVnodes / pDnode2->numOfSupportVnodes;
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return d1Score >= d2Score ? 1 : 0;
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}
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|
|
static int32_t mndGetAvailableDnode(SMnode *pMnode, SVgObj *pVgroup, SArray *pArray) {
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
int32_t allocedVnodes = 0;
|
|
void *pIter = NULL;
|
|
|
|
taosArraySort(pArray, (__compar_fn_t)mndCompareDnodeVnodes);
|
|
|
|
int32_t size = taosArrayGetSize(pArray);
|
|
if (size < pVgroup->replica) {
|
|
mError("db:%s, vgId:%d, no enough online dnodes:%d to alloc %d replica", pVgroup->dbName, pVgroup->vgId, size,
|
|
pVgroup->replica);
|
|
terrno = TSDB_CODE_MND_NO_ENOUGH_DNODES;
|
|
return -1;
|
|
}
|
|
|
|
for (int32_t v = 0; v < pVgroup->replica; ++v) {
|
|
SVnodeGid *pVgid = &pVgroup->vnodeGid[v];
|
|
SDnodeObj *pDnode = taosArrayGet(pArray, v);
|
|
if (pDnode == NULL || pDnode->numOfVnodes > pDnode->numOfSupportVnodes) {
|
|
terrno = TSDB_CODE_MND_NO_ENOUGH_DNODES;
|
|
return -1;
|
|
}
|
|
|
|
pVgid->dnodeId = pDnode->id;
|
|
if (pVgroup->replica == 1) {
|
|
pVgid->role = TAOS_SYNC_STATE_LEADER;
|
|
} else {
|
|
pVgid->role = TAOS_SYNC_STATE_FOLLOWER;
|
|
}
|
|
|
|
mInfo("db:%s, vgId:%d, vn:%d dnode:%d is alloced", pVgroup->dbName, pVgroup->vgId, v, pVgid->dnodeId);
|
|
pDnode->numOfVnodes++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t mndAllocSmaVgroup(SMnode *pMnode, SDbObj *pDb, SVgObj *pVgroup) {
|
|
SArray *pArray = mndBuildDnodesArray(pMnode, 0);
|
|
if (pArray == NULL) return -1;
|
|
|
|
pVgroup->vgId = sdbGetMaxId(pMnode->pSdb, SDB_VGROUP);
|
|
pVgroup->isTsma = 1;
|
|
pVgroup->createdTime = taosGetTimestampMs();
|
|
pVgroup->updateTime = pVgroup->createdTime;
|
|
pVgroup->version = 1;
|
|
memcpy(pVgroup->dbName, pDb->name, TSDB_DB_FNAME_LEN);
|
|
pVgroup->dbUid = pDb->uid;
|
|
pVgroup->replica = 1;
|
|
|
|
if (mndGetAvailableDnode(pMnode, pVgroup, pArray) != 0) return -1;
|
|
|
|
mInfo("db:%s, sma vgId:%d is alloced", pDb->name, pVgroup->vgId);
|
|
return 0;
|
|
}
|
|
|
|
int32_t mndAllocVgroup(SMnode *pMnode, SDbObj *pDb, SVgObj **ppVgroups) {
|
|
int32_t code = -1;
|
|
SArray *pArray = NULL;
|
|
SVgObj *pVgroups = NULL;
|
|
|
|
pVgroups = taosMemoryCalloc(pDb->cfg.numOfVgroups, sizeof(SVgObj));
|
|
if (pVgroups == NULL) {
|
|
terrno = TSDB_CODE_OUT_OF_MEMORY;
|
|
goto _OVER;
|
|
}
|
|
|
|
pArray = mndBuildDnodesArray(pMnode, 0);
|
|
if (pArray == NULL) goto _OVER;
|
|
|
|
mInfo("db:%s, total %d dnodes used to create %d vgroups (%d vnodes)", pDb->name, (int32_t)taosArrayGetSize(pArray),
|
|
pDb->cfg.numOfVgroups, pDb->cfg.numOfVgroups * pDb->cfg.replications);
|
|
|
|
int32_t allocedVgroups = 0;
|
|
int32_t maxVgId = sdbGetMaxId(pMnode->pSdb, SDB_VGROUP);
|
|
uint32_t hashMin = 0;
|
|
uint32_t hashMax = UINT32_MAX;
|
|
uint32_t hashInterval = (hashMax - hashMin) / pDb->cfg.numOfVgroups;
|
|
|
|
if (maxVgId < 2) maxVgId = 2;
|
|
|
|
for (uint32_t v = 0; v < pDb->cfg.numOfVgroups; v++) {
|
|
SVgObj *pVgroup = &pVgroups[v];
|
|
pVgroup->vgId = maxVgId++;
|
|
pVgroup->createdTime = taosGetTimestampMs();
|
|
pVgroup->updateTime = pVgroups->createdTime;
|
|
pVgroup->version = 1;
|
|
pVgroup->hashBegin = hashMin + hashInterval * v;
|
|
if (v == pDb->cfg.numOfVgroups - 1) {
|
|
pVgroup->hashEnd = hashMax;
|
|
} else {
|
|
pVgroup->hashEnd = hashMin + hashInterval * (v + 1) - 1;
|
|
}
|
|
|
|
memcpy(pVgroup->dbName, pDb->name, TSDB_DB_FNAME_LEN);
|
|
pVgroup->dbUid = pDb->uid;
|
|
pVgroup->replica = pDb->cfg.replications;
|
|
|
|
if (mndGetAvailableDnode(pMnode, pVgroup, pArray) != 0) {
|
|
terrno = TSDB_CODE_MND_NO_ENOUGH_DNODES;
|
|
goto _OVER;
|
|
}
|
|
|
|
allocedVgroups++;
|
|
}
|
|
|
|
*ppVgroups = pVgroups;
|
|
code = 0;
|
|
|
|
mInfo("db:%s, total %d vgroups is alloced, replica:%d", pDb->name, pDb->cfg.numOfVgroups, pDb->cfg.replications);
|
|
|
|
_OVER:
|
|
if (code != 0) taosMemoryFree(pVgroups);
|
|
taosArrayDestroy(pArray);
|
|
return code;
|
|
}
|
|
|
|
SEpSet mndGetVgroupEpset(SMnode *pMnode, const SVgObj *pVgroup) {
|
|
SEpSet epset = {0};
|
|
|
|
for (int32_t v = 0; v < pVgroup->replica; ++v) {
|
|
const SVnodeGid *pVgid = &pVgroup->vnodeGid[v];
|
|
SDnodeObj *pDnode = mndAcquireDnode(pMnode, pVgid->dnodeId);
|
|
if (pDnode == NULL) continue;
|
|
|
|
if (pVgid->role == TAOS_SYNC_STATE_LEADER) {
|
|
epset.inUse = epset.numOfEps;
|
|
}
|
|
|
|
addEpIntoEpSet(&epset, pDnode->fqdn, pDnode->port);
|
|
mndReleaseDnode(pMnode, pDnode);
|
|
}
|
|
|
|
return epset;
|
|
}
|
|
|
|
static bool mndGetVgroupMaxReplicaFp(SMnode *pMnode, void *pObj, void *p1, void *p2, void *p3) {
|
|
SVgObj *pVgroup = pObj;
|
|
int64_t uid = *(int64_t *)p1;
|
|
int8_t *pReplica = p2;
|
|
int32_t *pNumOfVgroups = p3;
|
|
|
|
if (pVgroup->dbUid == uid) {
|
|
*pReplica = TMAX(*pReplica, pVgroup->replica);
|
|
(*pNumOfVgroups)++;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static int32_t mndGetVgroupMaxReplica(SMnode *pMnode, char *dbName, int8_t *pReplica, int32_t *pNumOfVgroups) {
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
SDbObj *pDb = mndAcquireDb(pMnode, dbName);
|
|
if (pDb == NULL) {
|
|
terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
|
|
return -1;
|
|
}
|
|
|
|
*pReplica = 1;
|
|
*pNumOfVgroups = 0;
|
|
sdbTraverse(pSdb, SDB_VGROUP, mndGetVgroupMaxReplicaFp, &pDb->uid, pReplica, pNumOfVgroups);
|
|
mndReleaseDb(pMnode, pDb);
|
|
return 0;
|
|
}
|
|
|
|
static int32_t mndRetrieveVgroups(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows) {
|
|
SMnode *pMnode = pReq->info.node;
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
int32_t numOfRows = 0;
|
|
SVgObj *pVgroup = NULL;
|
|
int32_t cols = 0;
|
|
int64_t curMs = taosGetTimestampMs();
|
|
|
|
SDbObj *pDb = NULL;
|
|
if (strlen(pShow->db) > 0) {
|
|
pDb = mndAcquireDb(pMnode, pShow->db);
|
|
if (pDb == NULL) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
while (numOfRows < rows) {
|
|
pShow->pIter = sdbFetch(pSdb, SDB_VGROUP, pShow->pIter, (void **)&pVgroup);
|
|
if (pShow->pIter == NULL) break;
|
|
|
|
if (pDb != NULL && pVgroup->dbUid != pDb->uid) {
|
|
continue;
|
|
}
|
|
|
|
cols = 0;
|
|
SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)&pVgroup->vgId, false);
|
|
|
|
SName name = {0};
|
|
char db[TSDB_DB_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
|
|
tNameFromString(&name, pVgroup->dbName, T_NAME_ACCT | T_NAME_DB);
|
|
tNameGetDbName(&name, varDataVal(db));
|
|
varDataSetLen(db, strlen(varDataVal(db)));
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)db, false);
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)&pVgroup->numOfTables, false);
|
|
|
|
// default 3 replica
|
|
for (int32_t i = 0; i < 3; ++i) {
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
if (i < pVgroup->replica) {
|
|
colDataAppend(pColInfo, numOfRows, (const char *)&pVgroup->vnodeGid[i].dnodeId, false);
|
|
|
|
bool online = false;
|
|
SDnodeObj *pDnode = mndAcquireDnode(pMnode, pVgroup->vnodeGid[i].dnodeId);
|
|
if (pDnode != NULL) {
|
|
online = mndIsDnodeOnline(pDnode, curMs);
|
|
mndReleaseDnode(pMnode, pDnode);
|
|
}
|
|
|
|
char buf1[20] = {0};
|
|
const char *role = online ? syncStr(pVgroup->vnodeGid[i].role) : "offline";
|
|
STR_WITH_MAXSIZE_TO_VARSTR(buf1, role, pShow->pMeta->pSchemas[cols].bytes);
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)buf1, false);
|
|
} else {
|
|
colDataAppendNULL(pColInfo, numOfRows);
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppendNULL(pColInfo, numOfRows);
|
|
}
|
|
}
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppendNULL(pColInfo, numOfRows);
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppendNULL(pColInfo, numOfRows);
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppendNULL(pColInfo, numOfRows);
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)&pVgroup->isTsma, false);
|
|
|
|
numOfRows++;
|
|
sdbRelease(pSdb, pVgroup);
|
|
}
|
|
|
|
if (pDb != NULL) {
|
|
mndReleaseDb(pMnode, pDb);
|
|
}
|
|
|
|
pShow->numOfRows += numOfRows;
|
|
return numOfRows;
|
|
}
|
|
|
|
static void mndCancelGetNextVgroup(SMnode *pMnode, void *pIter) {
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
sdbCancelFetch(pSdb, pIter);
|
|
}
|
|
|
|
static bool mndGetVnodesNumFp(SMnode *pMnode, void *pObj, void *p1, void *p2, void *p3) {
|
|
SVgObj *pVgroup = pObj;
|
|
int32_t dnodeId = *(int32_t *)p1;
|
|
int32_t *pNumOfVnodes = (int32_t *)p2;
|
|
|
|
for (int32_t v = 0; v < pVgroup->replica; ++v) {
|
|
if (pVgroup->vnodeGid[v].dnodeId == dnodeId) {
|
|
(*pNumOfVnodes)++;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
int32_t mndGetVnodesNum(SMnode *pMnode, int32_t dnodeId) {
|
|
int32_t numOfVnodes = 0;
|
|
sdbTraverse(pMnode->pSdb, SDB_VGROUP, mndGetVnodesNumFp, &dnodeId, &numOfVnodes, NULL);
|
|
return numOfVnodes;
|
|
}
|
|
|
|
static int32_t mndRetrieveVnodes(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows) {
|
|
SMnode *pMnode = pReq->info.node;
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
int32_t numOfRows = 0;
|
|
SVgObj *pVgroup = NULL;
|
|
int32_t cols = 0;
|
|
|
|
while (numOfRows < rows) {
|
|
pShow->pIter = sdbFetch(pSdb, SDB_VGROUP, pShow->pIter, (void **)&pVgroup);
|
|
if (pShow->pIter == NULL) break;
|
|
|
|
for (int32_t i = 0; i < pVgroup->replica && numOfRows < rows; ++i) {
|
|
SVnodeGid *pVgid = &pVgroup->vnodeGid[i];
|
|
cols = 0;
|
|
|
|
SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)&pVgroup->vgId, false);
|
|
|
|
SName name = {0};
|
|
char db[TSDB_DB_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
|
|
tNameFromString(&name, pVgroup->dbName, T_NAME_ACCT | T_NAME_DB);
|
|
tNameGetDbName(&name, varDataVal(db));
|
|
varDataSetLen(db, strlen(varDataVal(db)));
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)db, false);
|
|
|
|
uint32_t val = 0;
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)&val, false);
|
|
|
|
char buf[20] = {0};
|
|
STR_TO_VARSTR(buf, syncStr(pVgid->role));
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)buf, false);
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
colDataAppend(pColInfo, numOfRows, (const char *)&pVgroup->replica, false); // onlines
|
|
|
|
numOfRows++;
|
|
}
|
|
|
|
sdbRelease(pSdb, pVgroup);
|
|
}
|
|
|
|
pShow->numOfRows += numOfRows;
|
|
return numOfRows;
|
|
}
|
|
|
|
static void mndCancelGetNextVnode(SMnode *pMnode, void *pIter) {
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
sdbCancelFetch(pSdb, pIter);
|
|
}
|
|
|
|
int32_t mndAddVnodeToVgroup(SMnode *pMnode, SVgObj *pVgroup, SArray *pArray) {
|
|
taosArraySort(pArray, (__compar_fn_t)mndCompareDnodeVnodes);
|
|
for (int32_t i = 0; i < taosArrayGetSize(pArray); ++i) {
|
|
SDnodeObj *pDnode = taosArrayGet(pArray, i);
|
|
mDebug("dnode:%d, equivalent vnodes:%d", pDnode->id, pDnode->numOfVnodes);
|
|
}
|
|
|
|
SVnodeGid *pVgid = &pVgroup->vnodeGid[pVgroup->replica];
|
|
for (int32_t d = 0; d < taosArrayGetSize(pArray); ++d) {
|
|
SDnodeObj *pDnode = taosArrayGet(pArray, d);
|
|
|
|
bool used = false;
|
|
for (int32_t vn = 0; vn < pVgroup->replica; ++vn) {
|
|
if (pDnode->id == pVgroup->vnodeGid[vn].dnodeId) {
|
|
used = true;
|
|
break;
|
|
}
|
|
}
|
|
if (used) continue;
|
|
|
|
if (pDnode == NULL || pDnode->numOfVnodes > pDnode->numOfSupportVnodes) {
|
|
terrno = TSDB_CODE_MND_NO_ENOUGH_DNODES;
|
|
return -1;
|
|
}
|
|
|
|
pVgid->dnodeId = pDnode->id;
|
|
pVgid->role = TAOS_SYNC_STATE_ERROR;
|
|
mInfo("db:%s, vgId:%d, vn:%d dnode:%d, is added", pVgroup->dbName, pVgroup->vgId, pVgroup->replica, pVgid->dnodeId);
|
|
|
|
pVgroup->replica++;
|
|
pDnode->numOfVnodes++;
|
|
return 0;
|
|
}
|
|
|
|
terrno = TSDB_CODE_MND_NO_ENOUGH_DNODES;
|
|
mError("db:%s, failed to add vnode to vgId:%d since %s", pVgroup->dbName, pVgroup->vgId, terrstr());
|
|
return -1;
|
|
}
|
|
|
|
int32_t mndRemoveVnodeFromVgroup(SMnode *pMnode, SVgObj *pVgroup, SArray *pArray, SVnodeGid *pDelVgid) {
|
|
taosArraySort(pArray, (__compar_fn_t)mndCompareDnodeVnodes);
|
|
for (int32_t i = 0; i < taosArrayGetSize(pArray); ++i) {
|
|
SDnodeObj *pDnode = taosArrayGet(pArray, i);
|
|
mDebug("dnode:%d, equivalent vnodes:%d", pDnode->id, pDnode->numOfVnodes);
|
|
}
|
|
|
|
int32_t code = -1;
|
|
for (int32_t d = taosArrayGetSize(pArray) - 1; d >= 0; --d) {
|
|
SDnodeObj *pDnode = taosArrayGet(pArray, d);
|
|
|
|
for (int32_t vn = 0; vn < pVgroup->replica; ++vn) {
|
|
SVnodeGid *pVgid = &pVgroup->vnodeGid[vn];
|
|
if (pVgid->dnodeId == pDnode->id) {
|
|
mInfo("db:%s, vgId:%d, vn:%d dnode:%d, is removed", pVgroup->dbName, pVgroup->vgId, vn, pVgid->dnodeId);
|
|
pDnode->numOfVnodes--;
|
|
pVgroup->replica--;
|
|
*pDelVgid = *pVgid;
|
|
*pVgid = pVgroup->vnodeGid[pVgroup->replica];
|
|
memset(&pVgroup->vnodeGid[pVgroup->replica], 0, sizeof(SVnodeGid));
|
|
code = 0;
|
|
goto _OVER;
|
|
}
|
|
}
|
|
}
|
|
|
|
_OVER:
|
|
if (code != 0) {
|
|
terrno = TSDB_CODE_APP_ERROR;
|
|
mError("db:%s, failed to remove vnode from vgId:%d since %s", pVgroup->dbName, pVgroup->vgId, terrstr());
|
|
return -1;
|
|
}
|
|
|
|
for (int32_t vn = 0; vn < pVgroup->replica; ++vn) {
|
|
SVnodeGid *pVgid = &pVgroup->vnodeGid[vn];
|
|
mInfo("db:%s, vgId:%d, vn:%d dnode:%d is reserved", pVgroup->dbName, pVgroup->vgId, vn, pVgid->dnodeId);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int32_t mndAddCreateVnodeAction(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SVgObj *pVgroup, SVnodeGid *pVgid,
|
|
bool standby) {
|
|
STransAction action = {0};
|
|
|
|
SDnodeObj *pDnode = mndAcquireDnode(pMnode, pVgid->dnodeId);
|
|
if (pDnode == NULL) return -1;
|
|
action.epSet = mndGetDnodeEpset(pDnode);
|
|
mndReleaseDnode(pMnode, pDnode);
|
|
|
|
int32_t contLen = 0;
|
|
void *pReq = mndBuildCreateVnodeReq(pMnode, pDnode, pDb, pVgroup, &contLen, standby);
|
|
if (pReq == NULL) return -1;
|
|
|
|
action.pCont = pReq;
|
|
action.contLen = contLen;
|
|
action.msgType = TDMT_DND_CREATE_VNODE;
|
|
action.acceptableCode = TSDB_CODE_NODE_ALREADY_DEPLOYED;
|
|
|
|
if (mndTransAppendRedoAction(pTrans, &action) != 0) {
|
|
taosMemoryFree(pReq);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t mndAddAlterVnodeConfirmAction(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SVgObj *pVgroup) {
|
|
STransAction action = {0};
|
|
action.epSet = mndGetVgroupEpset(pMnode, pVgroup);
|
|
|
|
int32_t contLen = sizeof(SMsgHead);
|
|
SMsgHead *pHead = taosMemoryMalloc(contLen);
|
|
if (pHead == NULL) {
|
|
terrno = TSDB_CODE_OUT_OF_MEMORY;
|
|
return -1;
|
|
}
|
|
|
|
pHead->contLen = htonl(contLen);
|
|
pHead->vgId = htonl(pVgroup->vgId);
|
|
|
|
action.pCont = pHead;
|
|
action.contLen = contLen;
|
|
action.msgType = TDMT_VND_ALTER_CONFIRM;
|
|
|
|
if (mndTransAppendRedoAction(pTrans, &action) != 0) {
|
|
taosMemoryFree(pHead);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t mndAddAlterVnodeAction(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SVgObj *pVgroup, tmsg_t msgType) {
|
|
STransAction action = {0};
|
|
action.epSet = mndGetVgroupEpset(pMnode, pVgroup);
|
|
|
|
int32_t contLen = 0;
|
|
void *pReq = mndBuildAlterVnodeReq(pMnode, pDb, pVgroup, &contLen);
|
|
if (pReq == NULL) return -1;
|
|
|
|
action.pCont = pReq;
|
|
action.contLen = contLen;
|
|
action.msgType = msgType;
|
|
|
|
if (mndTransAppendRedoAction(pTrans, &action) != 0) {
|
|
taosMemoryFree(pReq);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t mndAddDropVnodeAction(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SVgObj *pVgroup, SVnodeGid *pVgid,
|
|
bool isRedo) {
|
|
STransAction action = {0};
|
|
|
|
SDnodeObj *pDnode = mndAcquireDnode(pMnode, pVgid->dnodeId);
|
|
if (pDnode == NULL) return -1;
|
|
action.epSet = mndGetDnodeEpset(pDnode);
|
|
mndReleaseDnode(pMnode, pDnode);
|
|
|
|
int32_t contLen = 0;
|
|
void *pReq = mndBuildDropVnodeReq(pMnode, pDnode, pDb, pVgroup, &contLen);
|
|
if (pReq == NULL) return -1;
|
|
|
|
action.pCont = pReq;
|
|
action.contLen = contLen;
|
|
action.msgType = TDMT_DND_DROP_VNODE;
|
|
action.acceptableCode = TSDB_CODE_NODE_NOT_DEPLOYED;
|
|
|
|
if (isRedo) {
|
|
if (mndTransAppendRedoAction(pTrans, &action) != 0) {
|
|
taosMemoryFree(pReq);
|
|
return -1;
|
|
}
|
|
} else {
|
|
if (mndTransAppendUndoAction(pTrans, &action) != 0) {
|
|
taosMemoryFree(pReq);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t mndSetMoveVgroupInfoToTrans(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SVgObj *pVgroup, int32_t vnIndex,
|
|
SArray *pArray) {
|
|
SVgObj newVg = {0};
|
|
memcpy(&newVg, pVgroup, sizeof(SVgObj));
|
|
|
|
mInfo("vgId:%d, vgroup info before move, replica:%d", newVg.vgId, newVg.replica);
|
|
for (int32_t i = 0; i < newVg.replica; ++i) {
|
|
mInfo("vgId:%d, vnode:%d dnode:%d", newVg.vgId, i, newVg.vnodeGid[i].dnodeId);
|
|
}
|
|
|
|
mInfo("vgId:%d, will add 1 vnodes", pVgroup->vgId);
|
|
if (mndAddVnodeToVgroup(pMnode, &newVg, pArray) != 0) return -1;
|
|
if (mndAddCreateVnodeAction(pMnode, pTrans, pDb, &newVg, &newVg.vnodeGid[1], true) != 0) return -1;
|
|
if (mndAddAlterVnodeAction(pMnode, pTrans, pDb, &newVg, TDMT_VND_ALTER_REPLICA) != 0) return -1;
|
|
if (mndAddAlterVnodeConfirmAction(pMnode, pTrans, pDb, &newVg) != 0) return -1;
|
|
|
|
mInfo("vgId:%d, will remove 1 vnodes", pVgroup->vgId);
|
|
newVg.replica--;
|
|
SVnodeGid del = newVg.vnodeGid[vnIndex];
|
|
newVg.vnodeGid[vnIndex] = newVg.vnodeGid[newVg.replica];
|
|
memset(&newVg.vnodeGid[newVg.replica], 0, sizeof(SVnodeGid));
|
|
if (mndAddAlterVnodeAction(pMnode, pTrans, pDb, &newVg, TDMT_VND_ALTER_REPLICA) != 0) return -1;
|
|
if (mndAddDropVnodeAction(pMnode, pTrans, pDb, &newVg, &del, true) != 0) return -1;
|
|
if (mndAddAlterVnodeConfirmAction(pMnode, pTrans, pDb, &newVg) != 0) return -1;
|
|
|
|
mInfo("vgId:%d, vgroup info after move, replica:%d", newVg.vgId, newVg.replica);
|
|
for (int32_t i = 0; i < newVg.replica; ++i) {
|
|
mInfo("vgId:%d, vnode:%d dnode:%d", newVg.vgId, i, newVg.vnodeGid[i].dnodeId);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int32_t mndSetMoveVgroupsInfoToTrans(SMnode *pMnode, STrans *pTrans, int32_t delDnodeId) {
|
|
SArray *pArray = mndBuildDnodesArray(pMnode, delDnodeId);
|
|
if (pArray == NULL) return -1;
|
|
|
|
void *pIter = NULL;
|
|
while (1) {
|
|
SVgObj *pVgroup = NULL;
|
|
pIter = sdbFetch(pMnode->pSdb, SDB_VGROUP, pIter, (void **)&pVgroup);
|
|
if (pIter == NULL) break;
|
|
|
|
int32_t vnIndex = -1;
|
|
for (int32_t i = 0; i < pVgroup->replica; ++i) {
|
|
if (pVgroup->vnodeGid[i].dnodeId == delDnodeId) {
|
|
vnIndex = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (vnIndex != -1) {
|
|
mInfo("vgId:%d, vnode:%d will be removed from dnode:%d", pVgroup->vgId, vnIndex, delDnodeId);
|
|
SDbObj *pDb = mndAcquireDb(pMnode, pVgroup->dbName);
|
|
mndSetMoveVgroupInfoToTrans(pMnode, pTrans, pDb, pVgroup, vnIndex, pArray);
|
|
mndReleaseDb(pMnode, pDb);
|
|
}
|
|
|
|
sdbRelease(pMnode->pSdb, pVgroup);
|
|
}
|
|
|
|
taosArrayDestroy(pArray);
|
|
return 0;
|
|
}
|
|
|
|
static int32_t mndAddIncVgroupReplicaToTrans(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SVgObj *pVgroup,
|
|
int32_t newDnodeId) {
|
|
mDebug("vgId:%d, will add 1 vnode, replica:%d, dnode:%d", pVgroup->vgId, pVgroup->replica, newDnodeId);
|
|
|
|
SVnodeGid *pGid = &pVgroup->vnodeGid[pVgroup->replica];
|
|
pVgroup->replica++;
|
|
pGid->dnodeId = newDnodeId;
|
|
pGid->role = TAOS_SYNC_STATE_ERROR;
|
|
|
|
if (mndAddCreateVnodeAction(pMnode, pTrans, pDb, pVgroup, pGid, true) != 0) return -1;
|
|
if (mndAddAlterVnodeAction(pMnode, pTrans, pDb, pVgroup, TDMT_VND_ALTER_REPLICA) != 0) return -1;
|
|
if (mndAddAlterVnodeConfirmAction(pMnode, pTrans, pDb, pVgroup) != 0) return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int32_t mndAddDecVgroupReplicaFromTrans(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SVgObj *pVgroup,
|
|
int32_t delDnodeId) {
|
|
mDebug("vgId:%d, will remove 1 vnode, replica:%d, dnode:%d", pVgroup->vgId, pVgroup->replica, delDnodeId);
|
|
|
|
SVnodeGid *pGid = NULL;
|
|
SVnodeGid delGid = {0};
|
|
for (int32_t i = 0; i < pVgroup->replica; ++i) {
|
|
if (pVgroup->vnodeGid[i].dnodeId == delDnodeId) {
|
|
pGid = &pVgroup->vnodeGid[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pGid == NULL) return 0;
|
|
|
|
memcpy(&delGid, pGid, sizeof(SVnodeGid));
|
|
memcpy(pGid, &pVgroup->vnodeGid[pVgroup->replica], sizeof(SVnodeGid));
|
|
memset(&pVgroup->vnodeGid[pVgroup->replica], 0, sizeof(SVnodeGid));
|
|
pVgroup->replica--;
|
|
|
|
if (mndAddAlterVnodeAction(pMnode, pTrans, pDb, pVgroup, TDMT_VND_ALTER_REPLICA) != 0) return -1;
|
|
if (mndAddDropVnodeAction(pMnode, pTrans, pDb, pVgroup, &delGid, true) != 0) return -1;
|
|
if (mndAddAlterVnodeConfirmAction(pMnode, pTrans, pDb, pVgroup) != 0) return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int32_t mndRedistributeVgroup(SMnode *pMnode, SRpcMsg *pReq, SDbObj *pDb, SVgObj *pVgroup, SDnodeObj *pNew1,
|
|
SDnodeObj *pOld1, SDnodeObj *pNew2, SDnodeObj *pOld2, SDnodeObj *pNew3,
|
|
SDnodeObj *pOld3) {
|
|
int32_t code = -1;
|
|
SSdbRaw *pRaw = NULL;
|
|
STrans *pTrans = NULL;
|
|
|
|
pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_CONFLICT_GLOBAL, pReq);
|
|
if (pTrans == NULL) goto _OVER;
|
|
mndTransSetSerial(pTrans);
|
|
mDebug("trans:%d, used to drop redistribute vgId:%d", pTrans->id, pVgroup->vgId);
|
|
|
|
SVgObj newVg = {0};
|
|
memcpy(&newVg, pVgroup, sizeof(SVgObj));
|
|
mInfo("vgId:%d, vgroup info before redistribute, replica:%d", newVg.vgId, newVg.replica);
|
|
for (int32_t i = 0; i < newVg.replica; ++i) {
|
|
mInfo("vgId:%d, vnode:%d dnode:%d", newVg.vgId, i, newVg.vnodeGid[i].dnodeId);
|
|
}
|
|
|
|
if (mndAddIncVgroupReplicaToTrans(pMnode, pTrans, pDb, &newVg, pNew1->id) != 0) goto _OVER;
|
|
if (mndAddDecVgroupReplicaFromTrans(pMnode, pTrans, pDb, &newVg, pOld1->id) != 0) goto _OVER;
|
|
if (pNew2 != NULL) {
|
|
if (mndAddIncVgroupReplicaToTrans(pMnode, pTrans, pDb, &newVg, pNew2->id) != 0) goto _OVER;
|
|
if (mndAddDecVgroupReplicaFromTrans(pMnode, pTrans, pDb, &newVg, pOld2->id) != 0) goto _OVER;
|
|
if (mndAddIncVgroupReplicaToTrans(pMnode, pTrans, pDb, &newVg, pNew3->id) != 0) goto _OVER;
|
|
if (mndAddDecVgroupReplicaFromTrans(pMnode, pTrans, pDb, &newVg, pOld3->id) != 0) goto _OVER;
|
|
}
|
|
|
|
pRaw = mndVgroupActionEncode(&newVg);
|
|
if (pRaw == NULL || mndTransAppendCommitlog(pTrans, pRaw) != 0) goto _OVER;
|
|
sdbSetRawStatus(pRaw, SDB_STATUS_READY);
|
|
pRaw = NULL;
|
|
|
|
mInfo("vgId:%d, vgroup info after redistribute, replica:%d", newVg.vgId, newVg.replica);
|
|
for (int32_t i = 0; i < newVg.replica; ++i) {
|
|
mInfo("vgId:%d, vnode:%d dnode:%d", newVg.vgId, i, newVg.vnodeGid[i].dnodeId);
|
|
}
|
|
|
|
if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;
|
|
code = 0;
|
|
|
|
_OVER:
|
|
mndTransDrop(pTrans);
|
|
sdbFreeRaw(pRaw);
|
|
mndReleaseDb(pMnode, pDb);
|
|
return code;
|
|
}
|
|
|
|
static int32_t mndProcessRedistributeVgroupMsg(SRpcMsg *pReq) {
|
|
SMnode *pMnode = pReq->info.node;
|
|
SUserObj *pUser = NULL;
|
|
SDnodeObj *pNew1 = NULL;
|
|
SDnodeObj *pNew2 = NULL;
|
|
SDnodeObj *pNew3 = NULL;
|
|
SDnodeObj *pOld1 = NULL;
|
|
SDnodeObj *pOld2 = NULL;
|
|
SDnodeObj *pOld3 = NULL;
|
|
SVgObj *pVgroup = NULL;
|
|
SDbObj *pDb = NULL;
|
|
int32_t code = -1;
|
|
int64_t curMs = taosGetTimestampMs();
|
|
SMDropMnodeReq redReq = {0};
|
|
|
|
#if 0
|
|
if (tDeserializeSCreateDropMQSBNodeReq(pReq->pCont, pReq->contLen, &dropReq) != 0) {
|
|
terrno = TSDB_CODE_INVALID_MSG;
|
|
goto _OVER;
|
|
}
|
|
#endif
|
|
|
|
mDebug("vgId:%d, start to redistribute", 2);
|
|
pUser = mndAcquireUser(pMnode, pReq->conn.user);
|
|
if (pUser == NULL) {
|
|
terrno = TSDB_CODE_MND_NO_USER_FROM_CONN;
|
|
goto _OVER;
|
|
}
|
|
|
|
if (mndCheckNodeAuth(pUser) != 0) {
|
|
goto _OVER;
|
|
}
|
|
|
|
pVgroup = mndAcquireVgroup(pMnode, 2);
|
|
if (pVgroup == NULL) goto _OVER;
|
|
|
|
pDb = mndAcquireDb(pMnode, pVgroup->dbName);
|
|
if (pDb == NULL) goto _OVER;
|
|
|
|
if (pVgroup->replica == 1) {
|
|
pNew1 = mndAcquireDnode(pMnode, 1);
|
|
pOld1 = mndAcquireDnode(pMnode, pVgroup->vnodeGid[0].dnodeId);
|
|
if (pNew1 == NULL || pOld1 == NULL) goto _OVER;
|
|
if (!mndIsDnodeOnline(pNew1, curMs) || !mndIsDnodeOnline(pOld1, curMs)) {
|
|
terrno = TSDB_CODE_NODE_OFFLINE;
|
|
goto _OVER;
|
|
}
|
|
if (pNew1 == pOld1) {
|
|
terrno = TSDB_CODE_MND_VGROUP_UN_CHANGED;
|
|
goto _OVER;
|
|
}
|
|
if (mndRedistributeVgroup(pMnode, pReq, pDb, pVgroup, pNew1, pOld1, NULL, NULL, NULL, NULL) != 0) goto _OVER;
|
|
}
|
|
|
|
if (pVgroup->replica == 3) {
|
|
pNew1 = mndAcquireDnode(pMnode, 1);
|
|
pNew2 = mndAcquireDnode(pMnode, 2);
|
|
pNew3 = mndAcquireDnode(pMnode, 3);
|
|
pOld1 = mndAcquireDnode(pMnode, pVgroup->vnodeGid[0].dnodeId);
|
|
pOld2 = mndAcquireDnode(pMnode, pVgroup->vnodeGid[1].dnodeId);
|
|
pOld3 = mndAcquireDnode(pMnode, pVgroup->vnodeGid[2].dnodeId);
|
|
if (pNew1 == NULL || pOld1 == NULL || pNew2 == NULL || pOld2 == NULL || pNew3 == NULL || pOld3 == NULL) goto _OVER;
|
|
if (!mndIsDnodeOnline(pNew1, curMs) || !mndIsDnodeOnline(pOld1, curMs) || !mndIsDnodeOnline(pNew2, curMs) ||
|
|
!mndIsDnodeOnline(pOld2, curMs) || !mndIsDnodeOnline(pNew3, curMs) || !mndIsDnodeOnline(pOld3, curMs)) {
|
|
terrno = TSDB_CODE_NODE_OFFLINE;
|
|
goto _OVER;
|
|
}
|
|
bool changed = true;
|
|
if (pNew1 != pOld1 || pNew1 != pOld2 || pNew1 != pOld3) changed = true;
|
|
if (pNew2 != pOld1 || pNew2 != pOld2 || pNew2 != pOld3) changed = true;
|
|
if (pNew3 != pOld1 || pNew3 != pOld2 || pNew3 != pOld3) changed = true;
|
|
if (!changed) {
|
|
terrno = TSDB_CODE_MND_VGROUP_UN_CHANGED;
|
|
goto _OVER;
|
|
}
|
|
if (mndRedistributeVgroup(pMnode, pReq, pDb, pVgroup, pNew1, pOld1, pNew2, pOld2, pNew3, pOld3) != 0) goto _OVER;
|
|
}
|
|
|
|
if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;
|
|
|
|
_OVER:
|
|
if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {
|
|
mDebug("vgId:%d, failed to redistribute since %s", 1, terrstr());
|
|
}
|
|
|
|
mndReleaseDnode(pMnode, pNew1);
|
|
mndReleaseDnode(pMnode, pNew2);
|
|
mndReleaseDnode(pMnode, pNew3);
|
|
mndReleaseDnode(pMnode, pOld1);
|
|
mndReleaseDnode(pMnode, pOld2);
|
|
mndReleaseDnode(pMnode, pOld3);
|
|
mndReleaseUser(pMnode, pUser);
|
|
mndReleaseVgroup(pMnode, pVgroup);
|
|
mndReleaseDb(pMnode, pDb);
|
|
|
|
return code;
|
|
}
|
|
|
|
static int32_t mndProcessSplitVgroupMsg(SRpcMsg *pReq) { return 0; } |