homework-jianmu/source/libs/scheduler/src/schJob.c

1073 lines
32 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 "catalog.h"
#include "command.h"
#include "query.h"
#include "schInt.h"
#include "tmsg.h"
#include "tref.h"
#include "trpc.h"
void schUpdateJobErrCode(SSchJob *pJob, int32_t errCode) {
if (TSDB_CODE_SUCCESS == errCode) {
return;
}
int32_t origCode = atomic_load_32(&pJob->errCode);
if (TSDB_CODE_SUCCESS == origCode) {
if (origCode == atomic_val_compare_exchange_32(&pJob->errCode, origCode, errCode)) {
goto _return;
}
origCode = atomic_load_32(&pJob->errCode);
}
if (NEED_CLIENT_HANDLE_ERROR(origCode)) {
return;
}
if (NEED_CLIENT_HANDLE_ERROR(errCode)) {
atomic_store_32(&pJob->errCode, errCode);
goto _return;
}
return;
_return:
SCH_JOB_DLOG("job errCode updated to %s", tstrerror(errCode));
}
bool schJobDone(SSchJob *pJob) {
int8_t status = SCH_GET_JOB_STATUS(pJob);
return (status == JOB_TASK_STATUS_FAIL || status == JOB_TASK_STATUS_DROP || status == JOB_TASK_STATUS_SUCC);
}
FORCE_INLINE bool schJobNeedToStop(SSchJob *pJob, int8_t *pStatus) {
int8_t status = SCH_GET_JOB_STATUS(pJob);
if (pStatus) {
*pStatus = status;
}
if (schJobDone(pJob)) {
return true;
}
if ((*pJob->chkKillFp)(pJob->chkKillParam)) {
schUpdateJobErrCode(pJob, TSDB_CODE_TSC_QUERY_KILLED);
return true;
}
return false;
}
int32_t schUpdateJobStatus(SSchJob *pJob, int8_t newStatus) {
int32_t code = 0;
int8_t oriStatus = 0;
while (true) {
oriStatus = SCH_GET_JOB_STATUS(pJob);
if (oriStatus == newStatus) {
if (JOB_TASK_STATUS_FETCH == newStatus) {
return code;
}
SCH_ERR_JRET(TSDB_CODE_SCH_IGNORE_ERROR);
}
switch (oriStatus) {
case JOB_TASK_STATUS_NULL:
if (newStatus != JOB_TASK_STATUS_INIT) {
SCH_ERR_JRET(TSDB_CODE_APP_ERROR);
}
break;
case JOB_TASK_STATUS_INIT:
if (newStatus != JOB_TASK_STATUS_EXEC && newStatus != JOB_TASK_STATUS_DROP) {
SCH_ERR_JRET(TSDB_CODE_APP_ERROR);
}
break;
case JOB_TASK_STATUS_EXEC:
if (newStatus != JOB_TASK_STATUS_PART_SUCC && newStatus != JOB_TASK_STATUS_FAIL &&
newStatus != JOB_TASK_STATUS_DROP) {
SCH_ERR_JRET(TSDB_CODE_APP_ERROR);
}
break;
case JOB_TASK_STATUS_PART_SUCC:
if (newStatus != JOB_TASK_STATUS_FAIL && newStatus != JOB_TASK_STATUS_SUCC &&
newStatus != JOB_TASK_STATUS_DROP && newStatus != JOB_TASK_STATUS_EXEC &&
newStatus != JOB_TASK_STATUS_FETCH) {
SCH_ERR_JRET(TSDB_CODE_APP_ERROR);
}
break;
case JOB_TASK_STATUS_FETCH:
if (newStatus != JOB_TASK_STATUS_FAIL && newStatus != JOB_TASK_STATUS_SUCC &&
newStatus != JOB_TASK_STATUS_DROP && newStatus != JOB_TASK_STATUS_EXEC &&
newStatus != JOB_TASK_STATUS_FETCH) {
SCH_ERR_JRET(TSDB_CODE_APP_ERROR);
}
break;
case JOB_TASK_STATUS_SUCC:
case JOB_TASK_STATUS_FAIL:
if (newStatus != JOB_TASK_STATUS_DROP) {
SCH_ERR_JRET(TSDB_CODE_APP_ERROR);
}
break;
case JOB_TASK_STATUS_DROP:
SCH_ERR_JRET(TSDB_CODE_QRY_JOB_FREED);
break;
default:
SCH_JOB_ELOG("invalid job status:%s", jobTaskStatusStr(oriStatus));
SCH_ERR_JRET(TSDB_CODE_APP_ERROR);
}
if (oriStatus != atomic_val_compare_exchange_8(&pJob->status, oriStatus, newStatus)) {
continue;
}
SCH_JOB_DLOG("job status updated from %s to %s", jobTaskStatusStr(oriStatus), jobTaskStatusStr(newStatus));
break;
}
return TSDB_CODE_SUCCESS;
_return:
if (TSDB_CODE_SCH_IGNORE_ERROR == code) {
SCH_JOB_DLOG("ignore job status update, from %s to %s", jobTaskStatusStr(oriStatus), jobTaskStatusStr(newStatus));
} else {
SCH_JOB_ELOG("invalid job status update, from %s to %s", jobTaskStatusStr(oriStatus), jobTaskStatusStr(newStatus));
}
SCH_RET(code);
}
int32_t schBuildTaskRalation(SSchJob *pJob, SHashObj *planToTask) {
for (int32_t i = 0; i < pJob->levelNum; ++i) {
SSchLevel *pLevel = taosArrayGet(pJob->levels, i);
for (int32_t m = 0; m < pLevel->taskNum; ++m) {
SSchTask *pTask = taosArrayGet(pLevel->subTasks, m);
SSubplan *pPlan = pTask->plan;
int32_t childNum = pPlan->pChildren ? (int32_t)LIST_LENGTH(pPlan->pChildren) : 0;
int32_t parentNum = pPlan->pParents ? (int32_t)LIST_LENGTH(pPlan->pParents) : 0;
if (childNum > 0) {
if (pJob->levelIdx == pLevel->level) {
SCH_JOB_ELOG("invalid query plan, lowest level, childNum:%d", childNum);
SCH_ERR_RET(TSDB_CODE_SCH_INTERNAL_ERROR);
}
pTask->children = taosArrayInit(childNum, POINTER_BYTES);
if (NULL == pTask->children) {
SCH_TASK_ELOG("taosArrayInit %d children failed", childNum);
SCH_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
}
}
for (int32_t n = 0; n < childNum; ++n) {
SSubplan *child = (SSubplan *)nodesListGetNode(pPlan->pChildren, n);
SSchTask **childTask = taosHashGet(planToTask, &child, POINTER_BYTES);
if (NULL == childTask || NULL == *childTask) {
SCH_TASK_ELOG("subplan children relationship error, level:%d, taskIdx:%d, childIdx:%d", i, m, n);
SCH_ERR_RET(TSDB_CODE_SCH_INTERNAL_ERROR);
}
if (NULL == taosArrayPush(pTask->children, childTask)) {
SCH_TASK_ELOG("taosArrayPush childTask failed, level:%d, taskIdx:%d, childIdx:%d", i, m, n);
SCH_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
}
SCH_TASK_DLOG("children info, the %d child TID 0x%" PRIx64, n, (*childTask)->taskId);
}
if (parentNum > 0) {
if (0 == pLevel->level) {
SCH_TASK_ELOG("invalid task info, level:0, parentNum:%d", parentNum);
SCH_ERR_RET(TSDB_CODE_SCH_INTERNAL_ERROR);
}
pTask->parents = taosArrayInit(parentNum, POINTER_BYTES);
if (NULL == pTask->parents) {
SCH_TASK_ELOG("taosArrayInit %d parents failed", parentNum);
SCH_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
}
} else {
if (0 != pLevel->level) {
SCH_TASK_ELOG("invalid task info, level:%d, parentNum:%d", pLevel->level, parentNum);
SCH_ERR_RET(TSDB_CODE_SCH_INTERNAL_ERROR);
}
}
for (int32_t n = 0; n < parentNum; ++n) {
SSubplan *parent = (SSubplan *)nodesListGetNode(pPlan->pParents, n);
SSchTask **parentTask = taosHashGet(planToTask, &parent, POINTER_BYTES);
if (NULL == parentTask || NULL == *parentTask) {
SCH_TASK_ELOG("subplan parent relationship error, level:%d, taskIdx:%d, childIdx:%d", i, m, n);
SCH_ERR_RET(TSDB_CODE_SCH_INTERNAL_ERROR);
}
if (NULL == taosArrayPush(pTask->parents, parentTask)) {
SCH_TASK_ELOG("taosArrayPush parentTask failed, level:%d, taskIdx:%d, childIdx:%d", i, m, n);
SCH_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
}
SCH_TASK_DLOG("parents info, the %d parent TID 0x%" PRIx64, n, (*parentTask)->taskId);
}
SCH_TASK_DLOG("level:%d, parentNum:%d, childNum:%d", i, parentNum, childNum);
}
}
SSchLevel *pLevel = taosArrayGet(pJob->levels, 0);
if (SCH_IS_QUERY_JOB(pJob)) {
if (pLevel->taskNum > 1) {
SCH_JOB_ELOG("invalid query plan, level:0, taskNum:%d", pLevel->taskNum);
SCH_ERR_RET(TSDB_CODE_SCH_INTERNAL_ERROR);
}
SSchTask *pTask = taosArrayGet(pLevel->subTasks, 0);
if (SUBPLAN_TYPE_MODIFY != pTask->plan->subplanType || EXPLAIN_MODE_DISABLE != pJob->attr.explainMode) {
pJob->attr.needFetch = true;
}
}
return TSDB_CODE_SUCCESS;
}
int32_t schAppendJobDataSrc(SSchJob *pJob, SSchTask *pTask) {
if (!SCH_IS_DATA_BIND_QRY_TASK(pTask)) {
return TSDB_CODE_SUCCESS;
}
taosArrayPush(pJob->dataSrcTasks, &pTask);
return TSDB_CODE_SUCCESS;
}
int32_t schValidateAndBuildJob(SQueryPlan *pDag, SSchJob *pJob) {
int32_t code = 0;
pJob->queryId = pDag->queryId;
if (pDag->numOfSubplans <= 0) {
SCH_JOB_ELOG("invalid subplan num:%d", pDag->numOfSubplans);
SCH_ERR_RET(TSDB_CODE_QRY_INVALID_INPUT);
}
pJob->dataSrcTasks = taosArrayInit(pDag->numOfSubplans, POINTER_BYTES);
if (NULL == pJob->dataSrcTasks) {
SCH_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
}
int32_t levelNum = (int32_t)LIST_LENGTH(pDag->pSubplans);
if (levelNum <= 0) {
SCH_JOB_ELOG("invalid level num:%d", levelNum);
SCH_ERR_RET(TSDB_CODE_QRY_INVALID_INPUT);
}
SHashObj *planToTask = taosHashInit(
pDag->numOfSubplans,
taosGetDefaultHashFunction(POINTER_BYTES == sizeof(int64_t) ? TSDB_DATA_TYPE_BIGINT : TSDB_DATA_TYPE_INT), false,
HASH_NO_LOCK);
if (NULL == planToTask) {
SCH_JOB_ELOG("taosHashInit %d failed", SCHEDULE_DEFAULT_MAX_TASK_NUM);
SCH_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
}
pJob->levels = taosArrayInit(levelNum, sizeof(SSchLevel));
if (NULL == pJob->levels) {
SCH_JOB_ELOG("taosArrayInit %d failed", levelNum);
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
pJob->levelNum = levelNum;
SCH_RESET_JOB_LEVEL_IDX(pJob);
SSchLevel level = {0};
SNodeListNode *plans = NULL;
int32_t taskNum = 0;
SSchLevel *pLevel = NULL;
level.status = JOB_TASK_STATUS_INIT;
for (int32_t i = 0; i < levelNum; ++i) {
if (NULL == taosArrayPush(pJob->levels, &level)) {
SCH_JOB_ELOG("taosArrayPush level failed, level:%d", i);
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
pLevel = taosArrayGet(pJob->levels, i);
pLevel->level = i;
plans = (SNodeListNode *)nodesListGetNode(pDag->pSubplans, i);
if (NULL == plans) {
SCH_JOB_ELOG("empty level plan, level:%d", i);
SCH_ERR_JRET(TSDB_CODE_QRY_INVALID_INPUT);
}
taskNum = (int32_t)LIST_LENGTH(plans->pNodeList);
if (taskNum <= 0) {
SCH_JOB_ELOG("invalid level plan number:%d, level:%d", taskNum, i);
SCH_ERR_JRET(TSDB_CODE_QRY_INVALID_INPUT);
}
pLevel->taskNum = taskNum;
pLevel->subTasks = taosArrayInit(taskNum, sizeof(SSchTask));
if (NULL == pLevel->subTasks) {
SCH_JOB_ELOG("taosArrayInit %d failed", taskNum);
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
for (int32_t n = 0; n < taskNum; ++n) {
SSubplan *plan = (SSubplan *)nodesListGetNode(plans->pNodeList, n);
SCH_SET_JOB_TYPE(pJob, plan->subplanType);
SSchTask task = {0};
SSchTask *pTask = taosArrayPush(pLevel->subTasks, &task);
if (NULL == pTask) {
SCH_TASK_ELOG("taosArrayPush task to level failed, level:%d, taskIdx:%d", pLevel->level, n);
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
SCH_ERR_JRET(schInitTask(pJob, pTask, plan, pLevel));
SCH_ERR_JRET(schAppendJobDataSrc(pJob, pTask));
if (0 != taosHashPut(planToTask, &plan, POINTER_BYTES, &pTask, POINTER_BYTES)) {
SCH_TASK_ELOG("taosHashPut to planToTaks failed, taskIdx:%d", n);
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
if (0 != taosHashPut(pJob->taskList, &pTask->taskId, sizeof(pTask->taskId), &pTask, POINTER_BYTES)) {
SCH_TASK_ELOG("taosHashPut to taskList failed, taskIdx:%d", n);
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
++pJob->taskNum;
}
SCH_JOB_DLOG("level %d initialized, taskNum:%d", i, taskNum);
}
SCH_ERR_JRET(schBuildTaskRalation(pJob, planToTask));
_return:
if (planToTask) {
taosHashCleanup(planToTask);
}
SCH_RET(code);
}
int32_t schDumpJobExecRes(SSchJob *pJob, SExecResult *pRes) {
pRes->code = atomic_load_32(&pJob->errCode);
pRes->numOfRows = pJob->resNumOfRows;
pRes->res = pJob->execRes.res;
pRes->msgType = pJob->execRes.msgType;
pRes->numOfBytes = pJob->execRes.numOfBytes;
pJob->execRes.res = NULL;
SCH_JOB_DLOG("execRes dumped, code: %s", tstrerror(pRes->code));
return TSDB_CODE_SUCCESS;
}
int32_t schDumpJobFetchRes(SSchJob *pJob, void **pData) {
int32_t code = 0;
SCH_LOCK(SCH_WRITE, &pJob->resLock);
pJob->fetched = true;
if (pJob->fetchRes && ((SRetrieveTableRsp *)pJob->fetchRes)->completed) {
SCH_ERR_JRET(schSwitchJobStatus(pJob, JOB_TASK_STATUS_SUCC, NULL));
}
while (true) {
*pData = atomic_load_ptr(&pJob->fetchRes);
if (*pData != atomic_val_compare_exchange_ptr(&pJob->fetchRes, *pData, NULL)) {
continue;
}
break;
}
if (NULL == *pData) {
SRetrieveTableRsp *rsp = (SRetrieveTableRsp *)taosMemoryCalloc(1, sizeof(SRetrieveTableRsp));
if (rsp) {
rsp->completed = 1;
}
*pData = rsp;
SCH_JOB_DLOG("empty res and set query complete, code:%x", code);
}
SCH_JOB_DLOG("fetch done, totalRows:%" PRId64, pJob->resNumOfRows);
_return:
SCH_UNLOCK(SCH_WRITE, &pJob->resLock);
return code;
}
int32_t schNotifyUserExecRes(SSchJob *pJob) {
SExecResult *pRes = taosMemoryCalloc(1, sizeof(SExecResult));
if (pRes) {
schDumpJobExecRes(pJob, pRes);
}
SCH_JOB_DLOG("sch start to invoke exec cb, code: %s", tstrerror(pJob->errCode));
(*pJob->userRes.execFp)(pRes, pJob->userRes.cbParam, atomic_load_32(&pJob->errCode));
SCH_JOB_DLOG("sch end from exec cb, code: %s", tstrerror(pJob->errCode));
return TSDB_CODE_SUCCESS;
}
int32_t schNotifyUserFetchRes(SSchJob *pJob) {
void *pRes = NULL;
schDumpJobFetchRes(pJob, &pRes);
SCH_JOB_DLOG("sch start to invoke fetch cb, code: %s", tstrerror(pJob->errCode));
(*pJob->userRes.fetchFp)(pRes, pJob->userRes.cbParam, atomic_load_32(&pJob->errCode));
SCH_JOB_DLOG("sch end from fetch cb, code: %s", tstrerror(pJob->errCode));
return TSDB_CODE_SUCCESS;
}
void schPostJobRes(SSchJob *pJob, SCH_OP_TYPE op) {
SCH_LOCK(SCH_WRITE, &pJob->opStatus.lock);
if (SCH_OP_NULL == pJob->opStatus.op) {
SCH_JOB_DLOG("job not in any operation, no need to post job res, status:%s", jobTaskStatusStr(pJob->status));
goto _return;
}
if (op && pJob->opStatus.op != op) {
SCH_JOB_ELOG("job in operation %s mis-match with expected %s", schGetOpStr(pJob->opStatus.op), schGetOpStr(op));
goto _return;
}
if (SCH_JOB_IN_SYNC_OP(pJob)) {
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
tsem_post(&pJob->rspSem);
} else if (SCH_JOB_IN_ASYNC_EXEC_OP(pJob)) {
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
schNotifyUserExecRes(pJob);
} else if (SCH_JOB_IN_ASYNC_FETCH_OP(pJob)) {
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
schNotifyUserFetchRes(pJob);
} else {
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
SCH_JOB_ELOG("job not in any operation, status:%s", jobTaskStatusStr(pJob->status));
}
return;
_return:
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
}
int32_t schProcessOnJobFailure(SSchJob *pJob, int32_t errCode) {
if (TSDB_CODE_SCH_IGNORE_ERROR == errCode) {
return TSDB_CODE_SCH_IGNORE_ERROR;
}
schUpdateJobErrCode(pJob, errCode);
int32_t code = atomic_load_32(&pJob->errCode);
if (code) {
SCH_JOB_DLOG("job failed with error %s", tstrerror(code));
}
schPostJobRes(pJob, 0);
SCH_RET(TSDB_CODE_SCH_IGNORE_ERROR);
}
int32_t schHandleJobFailure(SSchJob *pJob, int32_t errCode) {
if (TSDB_CODE_SCH_IGNORE_ERROR == errCode) {
return TSDB_CODE_SCH_IGNORE_ERROR;
}
schSwitchJobStatus(pJob, JOB_TASK_STATUS_FAIL, &errCode);
return TSDB_CODE_SCH_IGNORE_ERROR;
}
int32_t schProcessOnJobDropped(SSchJob *pJob, int32_t errCode) { SCH_RET(schProcessOnJobFailure(pJob, errCode)); }
int32_t schHandleJobDrop(SSchJob *pJob, int32_t errCode) {
if (TSDB_CODE_SCH_IGNORE_ERROR == errCode) {
return TSDB_CODE_SCH_IGNORE_ERROR;
}
schSwitchJobStatus(pJob, JOB_TASK_STATUS_DROP, &errCode);
return TSDB_CODE_SCH_IGNORE_ERROR;
}
int32_t schProcessOnJobPartialSuccess(SSchJob *pJob) {
if (schChkCurrentOp(pJob, SCH_OP_FETCH, -1)) {
SCH_ERR_RET(schLaunchFetchTask(pJob));
} else {
schPostJobRes(pJob, 0);
}
return TSDB_CODE_SUCCESS;
}
void schProcessOnDataFetched(SSchJob *pJob) { schPostJobRes(pJob, SCH_OP_FETCH); }
int32_t schProcessOnExplainDone(SSchJob *pJob, SSchTask *pTask, SRetrieveTableRsp *pRsp) {
SCH_TASK_DLOG("got explain rsp, rows:%" PRId64 ", complete:%d", htobe64(pRsp->numOfRows), pRsp->completed);
atomic_store_64(&pJob->resNumOfRows, htobe64(pRsp->numOfRows));
atomic_store_ptr(&pJob->fetchRes, pRsp);
SCH_SET_TASK_STATUS(pTask, JOB_TASK_STATUS_SUCC);
if (!SCH_IS_INSERT_JOB(pJob)) {
schProcessOnDataFetched(pJob);
}
return TSDB_CODE_SUCCESS;
}
int32_t schLaunchJobLowerLevel(SSchJob *pJob, SSchTask *pTask) {
if (!SCH_IS_QUERY_JOB(pJob)) {
return TSDB_CODE_SUCCESS;
}
SSchLevel *pLevel = pTask->level;
int32_t doneNum = atomic_add_fetch_32(&pLevel->taskExecDoneNum, 1);
if (doneNum == pLevel->taskNum) {
atomic_sub_fetch_32(&pJob->levelIdx, 1);
pLevel = taosArrayGet(pJob->levels, pJob->levelIdx);
for (int32_t i = 0; i < pLevel->taskNum; ++i) {
SSchTask *pTask = taosArrayGet(pLevel->subTasks, i);
if (pTask->children && taosArrayGetSize(pTask->children) > 0) {
continue;
}
if (SCH_TASK_ALREADY_LAUNCHED(pTask)) {
continue;
}
SCH_ERR_RET(schLaunchTask(pJob, pTask));
}
}
return TSDB_CODE_SUCCESS;
}
int32_t schSaveJobExecRes(SSchJob *pJob, SQueryTableRsp *rsp) {
if (rsp->tbVerInfo) {
SCH_LOCK(SCH_WRITE, &pJob->resLock);
if (NULL == pJob->execRes.res) {
pJob->execRes.res = taosArrayInit(pJob->taskNum, sizeof(STbVerInfo));
if (NULL == pJob->execRes.res) {
SCH_UNLOCK(SCH_WRITE, &pJob->resLock);
SCH_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
}
}
taosArrayAddBatch((SArray *)pJob->execRes.res, taosArrayGet(rsp->tbVerInfo, 0), taosArrayGetSize(rsp->tbVerInfo));
taosArrayDestroy(rsp->tbVerInfo);
pJob->execRes.msgType = TDMT_SCH_QUERY;
SCH_UNLOCK(SCH_WRITE, &pJob->resLock);
}
return TSDB_CODE_SUCCESS;
}
int32_t schGetTaskInJob(SSchJob *pJob, uint64_t taskId, SSchTask **pTask) {
schGetTaskFromList(pJob->taskList, taskId, pTask);
if (NULL == *pTask) {
SCH_JOB_ELOG("task not found in job task list, taskId:0x%" PRIx64, taskId);
SCH_ERR_RET(TSDB_CODE_SCH_INTERNAL_ERROR);
}
return TSDB_CODE_SUCCESS;
}
int32_t schLaunchJob(SSchJob *pJob) {
if (EXPLAIN_MODE_STATIC == pJob->attr.explainMode) {
SCH_ERR_RET(qExecStaticExplain(pJob->pDag, (SRetrieveTableRsp **)&pJob->fetchRes));
SCH_ERR_RET(schSwitchJobStatus(pJob, JOB_TASK_STATUS_PART_SUCC, NULL));
} else {
SSchLevel *level = taosArrayGet(pJob->levels, pJob->levelIdx);
SCH_ERR_RET(schLaunchLevelTasks(pJob, level));
}
return TSDB_CODE_SUCCESS;
}
void schDropJobAllTasks(SSchJob *pJob) {
schDropTaskInHashList(pJob, pJob->execTasks);
// schDropTaskInHashList(pJob, pJob->succTasks);
// schDropTaskInHashList(pJob, pJob->failTasks);
}
int32_t schNotifyJobAllTasks(SSchJob *pJob, SSchTask *pTask, ETaskNotifyType type) {
SCH_RET(schNotifyTaskInHashList(pJob, pJob->execTasks, type, pTask));
}
void schFreeJobImpl(void *job) {
if (NULL == job) {
return;
}
SSchJob *pJob = job;
uint64_t queryId = pJob->queryId;
int64_t refId = pJob->refId;
qDebug("QID:0x%" PRIx64 " begin to free sch job, refId:0x%" PRIx64 ", pointer:%p", queryId, refId, pJob);
schDropJobAllTasks(pJob);
int32_t numOfLevels = taosArrayGetSize(pJob->levels);
for (int32_t i = 0; i < numOfLevels; ++i) {
SSchLevel *pLevel = taosArrayGet(pJob->levels, i);
int32_t numOfTasks = taosArrayGetSize(pLevel->subTasks);
for (int32_t j = 0; j < numOfTasks; ++j) {
SSchTask *pTask = taosArrayGet(pLevel->subTasks, j);
schFreeTask(pJob, pTask);
}
taosArrayDestroy(pLevel->subTasks);
}
schFreeFlowCtrl(pJob);
taosHashCleanup(pJob->execTasks);
// taosHashCleanup(pJob->failTasks);
// taosHashCleanup(pJob->succTasks);
taosHashCleanup(pJob->taskList);
taosArrayDestroy(pJob->levels);
taosArrayDestroy(pJob->nodeList);
taosArrayDestroy(pJob->dataSrcTasks);
qExplainFreeCtx(pJob->explainCtx);
destroyQueryExecRes(&pJob->execRes);
qDestroyQueryPlan(pJob->pDag);
nodesReleaseAllocatorWeakRef(pJob->allocatorRefId);
taosMemoryFreeClear(pJob->userRes.execRes);
taosMemoryFreeClear(pJob->fetchRes);
taosMemoryFreeClear(pJob->sql);
tsem_destroy(&pJob->rspSem);
taosMemoryFree(pJob);
int32_t jobNum = atomic_sub_fetch_32(&schMgmt.jobNum, 1);
if (jobNum == 0) {
schCloseJobRef();
}
qDebug("QID:0x%" PRIx64 " sch job freed, refId:0x%" PRIx64 ", pointer:%p", queryId, refId, pJob);
}
int32_t schJobFetchRows(SSchJob *pJob) {
int32_t code = 0;
if (!(pJob->attr.explainMode == EXPLAIN_MODE_STATIC) && !(SCH_IS_EXPLAIN_JOB(pJob) && SCH_IS_INSERT_JOB(pJob))) {
SCH_ERR_RET(schLaunchFetchTask(pJob));
if (schChkCurrentOp(pJob, SCH_OP_FETCH, true)) {
SCH_JOB_DLOG("sync wait for rsp now, job status:%s", SCH_GET_JOB_STATUS_STR(pJob));
tsem_wait(&pJob->rspSem);
SCH_RET(schDumpJobFetchRes(pJob, pJob->userRes.fetchRes));
}
} else {
if (schChkCurrentOp(pJob, SCH_OP_FETCH, true)) {
SCH_RET(schDumpJobFetchRes(pJob, pJob->userRes.fetchRes));
} else {
schPostJobRes(pJob, SCH_OP_FETCH);
}
}
SCH_RET(code);
}
int32_t schInitJob(int64_t *pJobId, SSchedulerReq *pReq) {
int32_t code = 0;
int64_t refId = -1;
SSchJob *pJob = taosMemoryCalloc(1, sizeof(SSchJob));
if (NULL == pJob) {
qError("QID:0x%" PRIx64 " calloc %d failed", pReq->pDag->queryId, (int32_t)sizeof(SSchJob));
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
pJob->attr.explainMode = pReq->pDag->explainInfo.mode;
pJob->attr.localExec = pReq->localReq;
pJob->conn = *pReq->pConn;
if (pReq->sql) {
pJob->sql = taosStrdup(pReq->sql);
}
pJob->pDag = pReq->pDag;
pJob->allocatorRefId = nodesMakeAllocatorWeakRef(pReq->allocatorRefId);
pJob->chkKillFp = pReq->chkKillFp;
pJob->chkKillParam = pReq->chkKillParam;
pJob->userRes.execFp = pReq->execFp;
pJob->userRes.cbParam = pReq->cbParam;
if (pReq->pNodeList == NULL || taosArrayGetSize(pReq->pNodeList) <= 0) {
qDebug("QID:0x%" PRIx64 " input exec nodeList is empty", pReq->pDag->queryId);
} else {
pJob->nodeList = taosArrayDup(pReq->pNodeList, NULL);
}
pJob->taskList = taosHashInit(pReq->pDag->numOfSubplans, taosGetDefaultHashFunction(TSDB_DATA_TYPE_UBIGINT), false,
HASH_ENTRY_LOCK);
if (NULL == pJob->taskList) {
SCH_JOB_ELOG("taosHashInit %d taskList failed", pReq->pDag->numOfSubplans);
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
SCH_ERR_JRET(schValidateAndBuildJob(pReq->pDag, pJob));
if (SCH_IS_EXPLAIN_JOB(pJob)) {
SCH_ERR_JRET(qExecExplainBegin(pReq->pDag, &pJob->explainCtx, pReq->startTs));
}
pJob->execTasks = taosHashInit(pReq->pDag->numOfSubplans, taosGetDefaultHashFunction(TSDB_DATA_TYPE_UBIGINT), false,
HASH_ENTRY_LOCK);
if (NULL == pJob->execTasks) {
SCH_JOB_ELOG("taosHashInit %d execTasks failed", pReq->pDag->numOfSubplans);
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
if (tsem_init(&pJob->rspSem, 0, 0)) {
SCH_JOB_ELOG("tsem_init failed, errno:%d", errno);
SCH_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
}
pJob->refId = taosAddRef(schMgmt.jobRef, pJob);
if (pJob->refId < 0) {
SCH_JOB_ELOG("taosAddRef job failed, error:%s", tstrerror(terrno));
SCH_ERR_JRET(terrno);
}
atomic_add_fetch_32(&schMgmt.jobNum, 1);
*pJobId = pJob->refId;
SCH_JOB_DLOG("job refId:0x%" PRIx64 " created", pJob->refId);
return TSDB_CODE_SUCCESS;
_return:
if (NULL == pJob) {
qDestroyQueryPlan(pReq->pDag);
} else if (pJob->refId < 0) {
schFreeJobImpl(pJob);
} else {
taosRemoveRef(schMgmt.jobRef, pJob->refId);
}
SCH_RET(code);
}
int32_t schExecJob(SSchJob *pJob, SSchedulerReq *pReq) {
int32_t code = 0;
qDebug("QID:0x%" PRIx64 " sch job refId 0x%" PRIx64 " started", pReq->pDag->queryId, pJob->refId);
SCH_ERR_RET(schLaunchJob(pJob));
if (pReq->syncReq) {
SCH_JOB_DLOG("sync wait for rsp now, job status:%s", SCH_GET_JOB_STATUS_STR(pJob));
tsem_wait(&pJob->rspSem);
}
SCH_JOB_DLOG("job exec done, job status:%s, jobId:0x%" PRIx64, SCH_GET_JOB_STATUS_STR(pJob), pJob->refId);
return TSDB_CODE_SUCCESS;
}
void schDirectPostJobRes(SSchedulerReq *pReq, int32_t errCode) {
if (NULL == pReq || pReq->syncReq) {
return;
}
if (pReq->execFp) {
(*pReq->execFp)(NULL, pReq->cbParam, errCode);
} else if (pReq->fetchFp) {
(*pReq->fetchFp)(NULL, pReq->cbParam, errCode);
}
}
int32_t schChkResetJobRetry(SSchJob *pJob, int32_t rspCode) {
if (pJob->status >= JOB_TASK_STATUS_PART_SUCC) {
SCH_LOCK(SCH_WRITE, &pJob->resLock);
if (pJob->fetched) {
SCH_UNLOCK(SCH_WRITE, &pJob->resLock);
pJob->noMoreRetry = true;
SCH_JOB_ELOG("already fetched while got error %s", tstrerror(rspCode));
SCH_ERR_RET(rspCode);
}
SCH_UNLOCK(SCH_WRITE, &pJob->resLock);
schUpdateJobStatus(pJob, JOB_TASK_STATUS_EXEC);
}
return TSDB_CODE_SUCCESS;
}
int32_t schResetJobForRetry(SSchJob *pJob, int32_t rspCode) {
SCH_ERR_RET(schChkResetJobRetry(pJob, rspCode));
int32_t numOfLevels = taosArrayGetSize(pJob->levels);
for (int32_t i = 0; i < numOfLevels; ++i) {
SSchLevel *pLevel = taosArrayGet(pJob->levels, i);
pLevel->taskExecDoneNum = 0;
pLevel->taskLaunchedNum = 0;
int32_t numOfTasks = taosArrayGetSize(pLevel->subTasks);
for (int32_t j = 0; j < numOfTasks; ++j) {
SSchTask *pTask = taosArrayGet(pLevel->subTasks, j);
SCH_LOCK_TASK(pTask);
SCH_ERR_RET(schChkUpdateRedirectCtx(pJob, pTask, NULL, rspCode));
qClearSubplanExecutionNode(pTask->plan);
schResetTaskForRetry(pJob, pTask);
SCH_UNLOCK_TASK(pTask);
}
}
SCH_RESET_JOB_LEVEL_IDX(pJob);
return TSDB_CODE_SUCCESS;
}
int32_t schHandleJobRetry(SSchJob *pJob, SSchTask *pTask, SDataBuf *pMsg, int32_t rspCode) {
int32_t code = 0;
taosMemoryFreeClear(pMsg->pData);
taosMemoryFreeClear(pMsg->pEpSet);
SCH_UNLOCK_TASK(pTask);
SCH_TASK_DLOG("start to redirect all job tasks cause of error: %s", tstrerror(rspCode));
SCH_ERR_JRET(schResetJobForRetry(pJob, rspCode));
SCH_ERR_JRET(schLaunchJob(pJob));
SCH_LOCK_TASK(pTask);
SCH_RET(code);
_return:
SCH_LOCK_TASK(pTask);
SCH_RET(schProcessOnTaskFailure(pJob, pTask, code));
}
bool schChkCurrentOp(SSchJob *pJob, int32_t op, int8_t sync) {
bool r = false;
SCH_LOCK(SCH_READ, &pJob->opStatus.lock);
if (sync >= 0) {
r = (pJob->opStatus.op == op) && (pJob->opStatus.syncReq == sync);
} else {
r = (pJob->opStatus.op == op);
}
SCH_UNLOCK(SCH_READ, &pJob->opStatus.lock);
return r;
}
void schProcessOnOpEnd(SSchJob *pJob, SCH_OP_TYPE type, SSchedulerReq *pReq, int32_t errCode) {
int32_t op = 0;
switch (type) {
case SCH_OP_EXEC:
if (pReq && pReq->syncReq) {
SCH_LOCK(SCH_WRITE, &pJob->opStatus.lock);
op = atomic_val_compare_exchange_32(&pJob->opStatus.op, type, SCH_OP_NULL);
if (SCH_OP_NULL == op || op != type) {
SCH_JOB_ELOG("job not in %s operation, op:%s, status:%s", schGetOpStr(type), schGetOpStr(op),
jobTaskStatusStr(pJob->status));
}
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
schDumpJobExecRes(pJob, pReq->pExecRes);
}
break;
case SCH_OP_FETCH:
if (pReq && pReq->syncReq) {
SCH_LOCK(SCH_WRITE, &pJob->opStatus.lock);
op = atomic_val_compare_exchange_32(&pJob->opStatus.op, type, SCH_OP_NULL);
if (SCH_OP_NULL == op || op != type) {
SCH_JOB_ELOG("job not in %s operation, op:%s, status:%s", schGetOpStr(type), schGetOpStr(op),
jobTaskStatusStr(pJob->status));
}
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
}
break;
case SCH_OP_GET_STATUS:
errCode = TSDB_CODE_SUCCESS;
break;
default:
break;
}
if (errCode) {
schHandleJobFailure(pJob, errCode);
}
SCH_JOB_DLOG("job end %s operation with code %s", schGetOpStr(type), tstrerror(errCode));
}
int32_t schProcessOnOpBegin(SSchJob *pJob, SCH_OP_TYPE type, SSchedulerReq *pReq) {
int32_t code = 0;
int8_t status = SCH_GET_JOB_STATUS(pJob);
switch (type) {
case SCH_OP_EXEC:
SCH_LOCK(SCH_WRITE, &pJob->opStatus.lock);
if (SCH_OP_NULL != atomic_val_compare_exchange_32(&pJob->opStatus.op, SCH_OP_NULL, type)) {
SCH_JOB_ELOG("job already in %s operation", schGetOpStr(pJob->opStatus.op));
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
schDirectPostJobRes(pReq, TSDB_CODE_APP_ERROR);
SCH_ERR_RET(TSDB_CODE_APP_ERROR);
}
SCH_JOB_DLOG("job start %s operation", schGetOpStr(pJob->opStatus.op));
pJob->opStatus.syncReq = pReq->syncReq;
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
break;
case SCH_OP_FETCH:
SCH_LOCK(SCH_WRITE, &pJob->opStatus.lock);
if (SCH_OP_NULL != atomic_val_compare_exchange_32(&pJob->opStatus.op, SCH_OP_NULL, type)) {
SCH_JOB_ELOG("job already in %s operation", schGetOpStr(pJob->opStatus.op));
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
schDirectPostJobRes(pReq, TSDB_CODE_APP_ERROR);
SCH_ERR_RET(TSDB_CODE_APP_ERROR);
}
SCH_JOB_DLOG("job start %s operation", schGetOpStr(pJob->opStatus.op));
pJob->userRes.fetchRes = pReq->pFetchRes;
pJob->userRes.fetchFp = pReq->fetchFp;
pJob->userRes.cbParam = pReq->cbParam;
pJob->opStatus.syncReq = pReq->syncReq;
SCH_UNLOCK(SCH_WRITE, &pJob->opStatus.lock);
if (!SCH_JOB_NEED_FETCH(pJob)) {
SCH_JOB_ELOG("no need to fetch data, status:%s", SCH_GET_JOB_STATUS_STR(pJob));
SCH_ERR_RET(TSDB_CODE_APP_ERROR);
}
if (status != JOB_TASK_STATUS_PART_SUCC && status != JOB_TASK_STATUS_FETCH) {
SCH_JOB_ELOG("job status error for fetch, status:%s", jobTaskStatusStr(status));
SCH_ERR_RET(TSDB_CODE_SCH_STATUS_ERROR);
}
break;
case SCH_OP_GET_STATUS:
if (pJob->status < JOB_TASK_STATUS_INIT || pJob->levelNum <= 0 || NULL == pJob->levels) {
qDebug("job not initialized or not executable job, refId:0x%" PRIx64, pJob->refId);
SCH_ERR_RET(TSDB_CODE_SCH_STATUS_ERROR);
}
return TSDB_CODE_SUCCESS;
default:
SCH_JOB_ELOG("unknown operation type %d", type);
SCH_ERR_RET(TSDB_CODE_APP_ERROR);
}
if (schJobNeedToStop(pJob, &status)) {
SCH_JOB_ELOG("abort op %s cause of job need to stop, status:%s", schGetOpStr(type), jobTaskStatusStr(status));
SCH_ERR_RET(TSDB_CODE_SCH_IGNORE_ERROR);
}
return TSDB_CODE_SUCCESS;
}
void schProcessOnCbEnd(SSchJob *pJob, SSchTask *pTask, int32_t errCode) {
if (pTask) {
SCH_UNLOCK_TASK(pTask);
}
if (errCode) {
schHandleJobFailure(pJob, errCode);
}
if (pJob) {
schReleaseJob(pJob->refId);
}
}
int32_t schProcessOnCbBegin(SSchJob **job, SSchTask **task, uint64_t qId, int64_t rId, uint64_t tId) {
int32_t code = 0;
int8_t status = 0;
SSchTask *pTask = NULL;
SSchJob *pJob = schAcquireJob(rId);
if (NULL == pJob) {
qWarn("QID:0x%" PRIx64 ",TID:0x%" PRIx64 "job no exist, may be dropped, refId:0x%" PRIx64, qId, tId, rId);
SCH_ERR_RET(TSDB_CODE_QRY_JOB_NOT_EXIST);
}
if (schJobNeedToStop(pJob, &status)) {
SCH_TASK_DLOG("will not do further processing cause of job status %s", jobTaskStatusStr(status));
SCH_ERR_JRET(TSDB_CODE_SCH_IGNORE_ERROR);
}
SCH_ERR_JRET(schGetTaskInJob(pJob, tId, &pTask));
SCH_LOCK_TASK(pTask);
*job = pJob;
*task = pTask;
return TSDB_CODE_SUCCESS;
_return:
if (pTask) {
SCH_UNLOCK_TASK(pTask);
}
if (pJob) {
schReleaseJob(rId);
}
SCH_RET(code);
}