homework-jianmu/source/dnode/mnode/impl/src/mndScheduler.c

74 lines
2.1 KiB
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/>.
*/
#include "mndScheduler.h"
#include "mndConsumer.h"
#include "mndDb.h"
#include "mndDnode.h"
#include "mndMnode.h"
#include "mndOffset.h"
#include "mndShow.h"
#include "mndStb.h"
#include "mndSubscribe.h"
#include "mndTopic.h"
#include "mndTrans.h"
#include "mndUser.h"
#include "mndVgroup.h"
#include "tcompare.h"
#include "tname.h"
int32_t mndSchedInitSubEp(SMnode* pMnode, const SMqTopicObj* pTopic, SMqSubscribeObj* pSub) {
SSdb* pSdb = pMnode->pSdb;
SVgObj* pVgroup = NULL;
SQueryDag* pDag = qStringToDag(pTopic->physicalPlan);
SArray* pAray = NULL;
SArray* unassignedVg = pSub->unassignedVg;
ASSERT(pSub->vgNum == 0);
int32_t levelNum = taosArrayGetSize(pDag->pSubplans);
if (levelNum != 1) {
return -1;
}
SArray* inner = taosArrayGet(pDag->pSubplans, 0);
SSubplan* plan = taosArrayGetP(inner, 0);
void* pIter = NULL;
while (1) {
pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void**)&pVgroup);
if (pIter == NULL) break;
if (pVgroup->dbUid != pTopic->dbUid) {
sdbRelease(pSdb, pVgroup);
continue;
}
pSub->vgNum++;
plan->execNode.nodeId = pVgroup->vgId;
plan->execNode.epset = mndGetVgroupEpset(pMnode, pVgroup);
SMqConsumerEp consumerEp = {0};
consumerEp.status = 0;
consumerEp.consumerId = -1;
consumerEp.epSet = plan->execNode.epset;
consumerEp.vgId = plan->execNode.nodeId;
int32_t msgLen;
int32_t code = qSubPlanToString(plan, &consumerEp.qmsg, &msgLen);
taosArrayPush(unassignedVg, &consumerEp);
}
return 0;
}