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Merge pull request #13704 from taosdata/feature/stream 

refactor(stream): stream scheduler
This commit is contained in:
Liu Jicong 2022-06-10 22:40:14 +08:00 committed by GitHub
parent 3a999d4eeb a7fba4b224
commit 795becbc23
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 206 additions and 12 deletions
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2
source/dnode/mnode/impl/inc/mndScheduler.h
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@ -27,7 +27,7 @@ void mndCleanupScheduler(SMnode* pMnode);
int32_t mndSchedInitSubEp(SMnode* pMnode, const SMqTopicObj* pTopic, SMqSubscribeObj* pSub);
int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream);
int32_t mndScheduleStream1(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream);
int32_t mndConvertRSmaTask(const char* ast, int64_t uid, int8_t triggerType, int64_t watermark, char** pStr,
int32_t* pLen, double filesFactor);

214
source/dnode/mnode/impl/src/mndScheduler.c
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@ -127,6 +127,61 @@ int32_t mndPersistTaskDeployReq(STrans* pTrans, SStreamTask* pTask, const SEpSet
return 0;
}
int32_t mndAddSinkToTask(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream, SStreamTask* pTask) {
pTask->dispatchType = TASK_DISPATCH__NONE;
// sink
if (pStream->createdBy == STREAM_CREATED_BY__SMA) {
pTask->sinkType = TASK_SINK__SMA;
pTask->smaSink.smaId = pStream->smaId;
} else {
pTask->sinkType = TASK_SINK__TABLE;
pTask->tbSink.stbUid = pStream->targetStbUid;
memcpy(pTask->tbSink.stbFullName, pStream->targetSTbName, TSDB_TABLE_FNAME_LEN);
pTask->tbSink.pSchemaWrapper = tCloneSSchemaWrapper(&pStream->outputSchema);
}
return 0;
}
int32_t mndAddDispatcherToInnerTask(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream, SStreamTask* pTask) {
pTask->sinkType = TASK_SINK__NONE;
if (pStream->fixedSinkVgId == 0) {
pTask->dispatchType = TASK_DISPATCH__SHUFFLE;
pTask->dispatchMsgType = TDMT_STREAM_TASK_DISPATCH;
SDbObj* pDb = mndAcquireDb(pMnode, pStream->targetDb);
ASSERT(pDb);
if (mndExtractDbInfo(pMnode, pDb, &pTask->shuffleDispatcher.dbInfo, NULL) < 0) {
sdbRelease(pMnode->pSdb, pDb);
SArray* pVgs = pTask->shuffleDispatcher.dbInfo.pVgroupInfos;
int32_t sz = taosArrayGetSize(pVgs);
SArray* sinkLv = taosArrayGetP(pStream->tasks, 0);
int32_t sinkLvSize = taosArrayGetSize(sinkLv);
for (int32_t i = 0; i < sz; i++) {
SVgroupInfo* pVgInfo = taosArrayGet(pVgs, i);
for (int32_t j = 0; j < sinkLvSize; j++) {
SStreamTask* pLastLevelTask = taosArrayGetP(sinkLv, j);
if (pLastLevelTask->nodeId == pVgInfo->vgId) {
pVgInfo->taskId = pLastLevelTask->taskId;
break;
}
}
}
} else {
pTask->dispatchType = TASK_DISPATCH__FIXED;
pTask->dispatchMsgType = TDMT_STREAM_TASK_DISPATCH;
SArray* pArray = taosArrayGetP(pStream->tasks, 0);
// one sink only
ASSERT(taosArrayGetSize(pArray) == 1);
SStreamTask* lastLevelTask = taosArrayGetP(pArray, 0);
pTask->fixedEpDispatcher.taskId = lastLevelTask->taskId;
pTask->fixedEpDispatcher.nodeId = lastLevelTask->nodeId;
pTask->fixedEpDispatcher.epSet = lastLevelTask->epSet;
}
}
return 0;
}
int32_t mndAssignTaskToVg(SMnode* pMnode, STrans* pTrans, SStreamTask* pTask, SSubplan* plan, const SVgObj* pVgroup) {
int32_t msgLen;
pTask->nodeId = pVgroup->vgId;
@ -139,6 +194,7 @@ int32_t mndAssignTaskToVg(SMnode* pMnode, STrans* pTrans, SStreamTask* pTask, SS
terrno = TSDB_CODE_QRY_INVALID_INPUT;
return -1;
}
ASSERT(pTask->dispatchType != TASK_DISPATCH__NONE || pTask->sinkType != TASK_SINK__NONE);
mndPersistTaskDeployReq(pTrans, pTask, &plan->execNode.epSet, TDMT_STREAM_TASK_DEPLOY, pVgroup->vgId);
return 0;
}
@ -182,7 +238,7 @@ SVgObj* mndSchedFetchOneVg(SMnode* pMnode, int64_t dbUid) {
return pVgroup;
}
int32_t mndAddShuffledSinkToStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
int32_t mndAddShuffleSinkTasksToStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
SSdb* pSdb = pMnode->pSdb;
void* pIter = NULL;
SArray* tasks = taosArrayGetP(pStream->tasks, 0);
@ -234,7 +290,7 @@ int32_t mndAddShuffledSinkToStream(SMnode* pMnode, STrans* pTrans, SStreamObj* p
return 0;
}
int32_t mndAddFixedSinkToStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
int32_t mndAddFixedSinkTaskToStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
ASSERT(pStream->fixedSinkVgId != 0);
SArray* tasks = taosArrayGetP(pStream->tasks, 0);
SStreamTask* pTask = tNewSStreamTask(pStream->uid);
@ -279,6 +335,146 @@ int32_t mndAddFixedSinkToStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStr
return 0;
}
int32_t mndScheduleStream1(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
SSdb* pSdb = pMnode->pSdb;
SQueryPlan* pPlan = qStringToQueryPlan(pStream->physicalPlan);
if (pPlan == NULL) {
terrno = TSDB_CODE_QRY_INVALID_INPUT;
return -1;
}
ASSERT(pStream->vgNum == 0);
int32_t totLevel = LIST_LENGTH(pPlan->pSubplans);
ASSERT(totLevel <= 2);
pStream->tasks = taosArrayInit(totLevel, sizeof(void*));
bool hasExtraSink = false;
bool externalTargetDB = strcmp(pStream->sourceDb, pStream->targetDb) != 0;
if (totLevel == 2 || externalTargetDB) {
SArray* taskOneLevel = taosArrayInit(0, sizeof(void*));
taosArrayPush(pStream->tasks, &taskOneLevel);
// add extra sink
hasExtraSink = true;
if (pStream->fixedSinkVgId == 0) {
mndAddShuffleSinkTasksToStream(pMnode, pTrans, pStream);
} else {
mndAddFixedSinkTaskToStream(pMnode, pTrans, pStream);
}
}
if (totLevel > 1) {
SStreamTask* pFinalTask;
// inner plan
{
SArray* taskInnerLevel = taosArrayInit(0, sizeof(void*));
taosArrayPush(pStream->tasks, &taskInnerLevel);
SNodeListNode* inner = nodesListGetNode(pPlan->pSubplans, 0);
SSubplan* plan = nodesListGetNode(inner->pNodeList, 0);
ASSERT(plan->subplanType == SUBPLAN_TYPE_MERGE);
pFinalTask = tNewSStreamTask(pStream->uid);
mndAddTaskToTaskSet(taskInnerLevel, pFinalTask);
// input
pFinalTask->inputType = TASK_INPUT_TYPE__DATA_BLOCK;
// dispatch
mndAddDispatcherToInnerTask(pMnode, pTrans, pStream, pFinalTask);
// exec
pFinalTask->execType = TASK_EXEC__PIPE;
SVgObj* pVgroup = mndSchedFetchOneVg(pMnode, pStream->dbUid);
if (mndAssignTaskToVg(pMnode, pTrans, pFinalTask, plan, pVgroup) < 0) {
sdbRelease(pSdb, pVgroup);
qDestroyQueryPlan(pPlan);
return -1;
}
}
// source plan
SArray* taskSourceLevel = taosArrayInit(0, sizeof(void*));
taosArrayPush(pStream->tasks, &taskSourceLevel);
SNodeListNode* inner = nodesListGetNode(pPlan->pSubplans, 1);
SSubplan* plan = nodesListGetNode(inner->pNodeList, 0);
ASSERT(plan->subplanType == SUBPLAN_TYPE_SCAN);
void* pIter = NULL;
while (1) {
SVgObj* pVgroup;
pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void**)&pVgroup);
if (pIter == NULL) break;
if (pVgroup->dbUid != pStream->dbUid) {
sdbRelease(pSdb, pVgroup);
continue;
}
SStreamTask* pTask = tNewSStreamTask(pStream->uid);
mndAddTaskToTaskSet(taskSourceLevel, pTask);
// input
pTask->inputType = TASK_INPUT_TYPE__SUMBIT_BLOCK;
// add fixed vg dispatch
pTask->sinkType = TASK_SINK__NONE;
pTask->dispatchMsgType = TDMT_STREAM_TASK_DISPATCH;
pTask->dispatchType = TASK_DISPATCH__FIXED;
pTask->fixedEpDispatcher.taskId = pFinalTask->taskId;
pTask->fixedEpDispatcher.nodeId = pFinalTask->nodeId;
pTask->fixedEpDispatcher.epSet = pFinalTask->epSet;
// exec
pTask->execType = TASK_EXEC__PIPE;
if (mndAssignTaskToVg(pMnode, pTrans, pTask, plan, pVgroup) < 0) {
sdbRelease(pSdb, pVgroup);
qDestroyQueryPlan(pPlan);
return -1;
}
}
}
if (totLevel == 1) {
SArray* taskOneLevel = taosArrayInit(0, sizeof(void*));
taosArrayPush(pStream->tasks, &taskOneLevel);
SNodeListNode* inner = nodesListGetNode(pPlan->pSubplans, 0);
ASSERT(LIST_LENGTH(inner->pNodeList) == 1);
SSubplan* plan = nodesListGetNode(inner->pNodeList, 0);
ASSERT(plan->subplanType == SUBPLAN_TYPE_SCAN);
void* pIter = NULL;
while (1) {
SVgObj* pVgroup;
pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void**)&pVgroup);
if (pIter == NULL) break;
if (pVgroup->dbUid != pStream->dbUid) {
sdbRelease(pSdb, pVgroup);
continue;
}
SStreamTask* pTask = tNewSStreamTask(pStream->uid);
mndAddTaskToTaskSet(taskOneLevel, pTask);
// input
pTask->inputType = TASK_INPUT_TYPE__SUMBIT_BLOCK;
// sink or dispatch
if (hasExtraSink) {
mndAddDispatcherToInnerTask(pMnode, pTrans, pStream, pTask);
} else {
mndAddSinkToTask(pMnode, pTrans, pStream, pTask);
}
// exec
pTask->execType = TASK_EXEC__PIPE;
if (mndAssignTaskToVg(pMnode, pTrans, pTask, plan, pVgroup) < 0) {
sdbRelease(pSdb, pVgroup);
qDestroyQueryPlan(pPlan);
return -1;
}
}
}
return 0;
}
int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
SSdb* pSdb = pMnode->pSdb;
SQueryPlan* pPlan = qStringToQueryPlan(pStream->physicalPlan);
@ -300,14 +496,15 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
// add extra sink
hasExtraSink = true;
if (pStream->fixedSinkVgId == 0) {
mndAddShuffledSinkToStream(pMnode, pTrans, pStream);
mndAddShuffleSinkTasksToStream(pMnode, pTrans, pStream);
} else {
mndAddFixedSinkToStream(pMnode, pTrans, pStream);
mndAddFixedSinkTaskToStream(pMnode, pTrans, pStream);
}
}
for (int32_t level = 0; level < totLevel; level++) {
SArray* taskOneLevel = taosArrayInit(0, sizeof(void*));
SArray* taskOneLevel = taosArrayInit(0, sizeof(void*));
taosArrayPush(pStream->tasks, &taskOneLevel);
SNodeListNode* inner = nodesListGetNode(pPlan->pSubplans, level);
ASSERT(LIST_LENGTH(inner->pNodeList) == 1);
@ -357,18 +554,17 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
}
// dispatch part
if (level == 0) {
if (level == 0 && !hasExtraSink) {
pTask->dispatchType = TASK_DISPATCH__NONE;
} else {
// add fixed ep dispatcher
int32_t lastLevel = level - 1;
ASSERT(lastLevel == 0);
if (hasExtraSink) lastLevel++;
ASSERT(lastLevel == 0);
SArray* pArray = taosArrayGetP(pStream->tasks, lastLevel);
// one merge only
ASSERT(taosArrayGetSize(pArray) == 1);
SStreamTask* lastLevelTask = taosArrayGetP(pArray, 0);
/*pTask->dispatchMsgType = TDMT_VND_TASK_MERGE_EXEC;*/
pTask->dispatchMsgType = TDMT_STREAM_TASK_DISPATCH;
pTask->dispatchType = TASK_DISPATCH__FIXED;
@ -465,8 +661,6 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
}
sdbRelease(pSdb, pVgroup);
}
taosArrayPush(pStream->tasks, &taskOneLevel);
}
#if 0

2
source/dnode/mnode/impl/src/mndStream.c
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@ -269,7 +269,7 @@ int32_t mndAddStreamToTrans(SMnode *pMnode, SStreamObj *pStream, const char *ast
return -1;
}
if (mndScheduleStream(pMnode, pTrans, pStream) < 0) {
if (mndScheduleStream1(pMnode, pTrans, pStream) < 0) {
mError("stream:%ld, schedule stream since %s", pStream->uid, terrstr());
return -1;
}