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homework-jianmu/source/dnode/vnode/src/tq/tq.c

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/*
* 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 "tq.h"
int32_t tqInit() {
//
return 0;
}
void tqCleanUp() {}
STQ* tqOpen(const char* path, SVnode* pVnode, SWal* pWal) {
STQ* pTq = taosMemoryMalloc(sizeof(STQ));
if (pTq == NULL) {
terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
return NULL;
}
pTq->path = strdup(path);
pTq->pVnode = pVnode;
pTq->pWal = pWal;
#if 0
pTq->tqMeta = tqStoreOpen(pTq, path, (FTqSerialize)tqSerializeConsumer, (FTqDeserialize)tqDeserializeConsumer,
(FTqDelete)taosMemoryFree, 0);
if (pTq->tqMeta == NULL) {
taosMemoryFree(pTq);
return NULL;
}
#endif
pTq->execs = taosHashInit(64, MurmurHash3_32, true, HASH_ENTRY_LOCK);
pTq->pStreamTasks = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_NO_LOCK);
pTq->pushMgr = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, HASH_ENTRY_LOCK);
return pTq;
}
void tqClose(STQ* pTq) {
if (pTq) {
taosMemoryFreeClear(pTq->path);
taosMemoryFree(pTq);
}
// TODO
}
int32_t tqPushMsgNew(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver) {
if (msgType != TDMT_VND_SUBMIT) return 0;
void* pIter = NULL;
STqExec* pExec = NULL;
SSubmitReq* pReq = (SSubmitReq*)msg;
int32_t workerId = 4;
int64_t fetchOffset = ver;
while (1) {
pIter = taosHashIterate(pTq->pushMgr, pIter);
if (pIter == NULL) break;
pExec = *(STqExec**)pIter;
taosWLockLatch(&pExec->pushHandle.lock);
SRpcMsg* pMsg = atomic_load_ptr(&pExec->pushHandle.handle);
ASSERT(pMsg);
SMqDataBlkRsp rsp = {0};
rsp.reqOffset = pExec->pushHandle.reqOffset;
rsp.blockData = taosArrayInit(0, sizeof(void*));
rsp.blockDataLen = taosArrayInit(0, sizeof(int32_t));
if (pExec->subType == TOPIC_SUB_TYPE__TABLE) {
qTaskInfo_t task = pExec->task[workerId];
ASSERT(task);
qSetStreamInput(task, pReq, STREAM_DATA_TYPE_SUBMIT_BLOCK);
while (1) {
SSDataBlock* pDataBlock = NULL;
uint64_t ts = 0;
if (qExecTask(task, &pDataBlock, &ts) < 0) {
ASSERT(0);
}
if (pDataBlock == NULL) break;
ASSERT(pDataBlock->info.rows != 0);
ASSERT(pDataBlock->info.numOfCols != 0);
int32_t dataStrLen = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pDataBlock);
void* buf = taosMemoryCalloc(1, dataStrLen);
SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)buf;
pRetrieve->useconds = ts;
pRetrieve->precision = TSDB_DEFAULT_PRECISION;
pRetrieve->compressed = 0;
pRetrieve->completed = 1;
pRetrieve->numOfRows = htonl(pDataBlock->info.rows);
// TODO enable compress
int32_t actualLen = 0;
blockCompressEncode(pDataBlock, pRetrieve->data, &actualLen, pDataBlock->info.numOfCols, false);
actualLen += sizeof(SRetrieveTableRsp);
ASSERT(actualLen <= dataStrLen);
taosArrayPush(rsp.blockDataLen, &actualLen);
taosArrayPush(rsp.blockData, &buf);
rsp.blockNum++;
}
} else if (pExec->subType == TOPIC_SUB_TYPE__DB) {
STqReadHandle* pReader = pExec->pExecReader[workerId];
tqReadHandleSetMsg(pReader, pReq, 0);
while (tqNextDataBlock(pReader)) {
SSDataBlock block = {0};
if (tqRetrieveDataBlock(&block.pDataBlock, pReader, &block.info.groupId, &block.info.rows,
&block.info.numOfCols) < 0) {
ASSERT(0);
}
int32_t dataStrLen = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(&block);
void* buf = taosMemoryCalloc(1, dataStrLen);
SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)buf;
/*pRetrieve->useconds = 0;*/
pRetrieve->precision = TSDB_DEFAULT_PRECISION;
pRetrieve->compressed = 0;
pRetrieve->completed = 1;
pRetrieve->numOfRows = htonl(block.info.rows);
// TODO enable compress
int32_t actualLen = 0;
blockCompressEncode(&block, pRetrieve->data, &actualLen, block.info.numOfCols, false);
actualLen += sizeof(SRetrieveTableRsp);
ASSERT(actualLen <= dataStrLen);
taosArrayPush(rsp.blockDataLen, &actualLen);
taosArrayPush(rsp.blockData, &buf);
rsp.blockNum++;
}
} else {
ASSERT(0);
}
if (rsp.blockNum == 0) {
taosWUnLockLatch(&pExec->pushHandle.lock);
continue;
}
ASSERT(taosArrayGetSize(rsp.blockData) == rsp.blockNum);
ASSERT(taosArrayGetSize(rsp.blockDataLen) == rsp.blockNum);
rsp.rspOffset = fetchOffset;
int32_t tlen = sizeof(SMqRspHead) + tEncodeSMqDataBlkRsp(NULL, &rsp);
void* buf = rpcMallocCont(tlen);
if (buf == NULL) {
pMsg->code = -1;
return -1;
}
((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
((SMqRspHead*)buf)->epoch = pExec->pushHandle.epoch;
((SMqRspHead*)buf)->consumerId = pExec->pushHandle.consumerId;
void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
tEncodeSMqDataBlkRsp(&abuf, &rsp);
pMsg->pCont = buf;
pMsg->contLen = tlen;
pMsg->code = 0;
tmsgSendRsp(pMsg);
atomic_store_ptr(&pExec->pushHandle.handle, NULL);
taosWUnLockLatch(&pExec->pushHandle.lock);
tqDebug("vg %d offset %ld from consumer %ld (epoch %d) send rsp, block num: %d, reqOffset: %ld, rspOffset: %ld",
TD_VID(pTq->pVnode), fetchOffset, pExec->pushHandle.consumerId, pExec->pushHandle.epoch, rsp.blockNum,
rsp.reqOffset, rsp.rspOffset);
// TODO destroy
taosArrayDestroy(rsp.blockData);
taosArrayDestroy(rsp.blockDataLen);
}
return 0;
}
int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver) {
if (msgType != TDMT_VND_SUBMIT) return 0;
void* data = taosMemoryMalloc(msgLen);
if (data == NULL) {
return -1;
}
memcpy(data, msg, msgLen);
// make sure msgType == TDMT_VND_SUBMIT
if (tsdbUpdateSmaWindow(pTq->pVnode->pTsdb, msg, ver) != 0) {
return -1;
}
SRpcMsg req = {
.msgType = TDMT_VND_STREAM_TRIGGER,
.pCont = data,
.contLen = msgLen,
};
tmsgPutToQueue(&pTq->pVnode->msgCb, FETCH_QUEUE, &req);
return 0;
}
int tqCommit(STQ* pTq) {
// do nothing
/*return tqStorePersist(pTq->tqMeta);*/
return 0;
}
int32_t tqGetTopicHandleSize(const STqTopic* pTopic) {
return strlen(pTopic->topicName) + strlen(pTopic->sql) + strlen(pTopic->physicalPlan) + strlen(pTopic->qmsg) +
sizeof(int64_t) * 3;
}
int32_t tqGetConsumerHandleSize(const STqConsumer* pConsumer) {
int num = taosArrayGetSize(pConsumer->topics);
int32_t sz = 0;
for (int i = 0; i < num; i++) {
STqTopic* pTopic = taosArrayGet(pConsumer->topics, i);
sz += tqGetTopicHandleSize(pTopic);
}
return sz;
}
static FORCE_INLINE int32_t tEncodeSTqTopic(void** buf, const STqTopic* pTopic) {
int32_t tlen = 0;
tlen += taosEncodeString(buf, pTopic->topicName);
/*tlen += taosEncodeString(buf, pTopic->sql);*/
/*tlen += taosEncodeString(buf, pTopic->physicalPlan);*/
tlen += taosEncodeString(buf, pTopic->qmsg);
/*tlen += taosEncodeFixedI64(buf, pTopic->persistedOffset);*/
/*tlen += taosEncodeFixedI64(buf, pTopic->committedOffset);*/
/*tlen += taosEncodeFixedI64(buf, pTopic->currentOffset);*/
return tlen;
}
static FORCE_INLINE const void* tDecodeSTqTopic(const void* buf, STqTopic* pTopic) {
buf = taosDecodeStringTo(buf, pTopic->topicName);
/*buf = taosDecodeString(buf, &pTopic->sql);*/
/*buf = taosDecodeString(buf, &pTopic->physicalPlan);*/
buf = taosDecodeString(buf, &pTopic->qmsg);
/*buf = taosDecodeFixedI64(buf, &pTopic->persistedOffset);*/
/*buf = taosDecodeFixedI64(buf, &pTopic->committedOffset);*/
/*buf = taosDecodeFixedI64(buf, &pTopic->currentOffset);*/
return buf;
}
static FORCE_INLINE int32_t tEncodeSTqConsumer(void** buf, const STqConsumer* pConsumer) {
int32_t sz;
int32_t tlen = 0;
tlen += taosEncodeFixedI64(buf, pConsumer->consumerId);
tlen += taosEncodeFixedI32(buf, pConsumer->epoch);
tlen += taosEncodeString(buf, pConsumer->cgroup);
sz = taosArrayGetSize(pConsumer->topics);
tlen += taosEncodeFixedI32(buf, sz);
for (int32_t i = 0; i < sz; i++) {
STqTopic* pTopic = taosArrayGet(pConsumer->topics, i);
tlen += tEncodeSTqTopic(buf, pTopic);
}
return tlen;
}
static FORCE_INLINE const void* tDecodeSTqConsumer(const void* buf, STqConsumer* pConsumer) {
int32_t sz;
buf = taosDecodeFixedI64(buf, &pConsumer->consumerId);
buf = taosDecodeFixedI32(buf, &pConsumer->epoch);
buf = taosDecodeStringTo(buf, pConsumer->cgroup);
buf = taosDecodeFixedI32(buf, &sz);
pConsumer->topics = taosArrayInit(sz, sizeof(STqTopic));
if (pConsumer->topics == NULL) return NULL;
for (int32_t i = 0; i < sz; i++) {
STqTopic pTopic;
buf = tDecodeSTqTopic(buf, &pTopic);
taosArrayPush(pConsumer->topics, &pTopic);
}
return buf;
}
int tqSerializeConsumer(const STqConsumer* pConsumer, STqSerializedHead** ppHead) {
int32_t sz = tEncodeSTqConsumer(NULL, pConsumer);
if (sz > (*ppHead)->ssize) {
void* tmpPtr = taosMemoryRealloc(*ppHead, sizeof(STqSerializedHead) + sz);
if (tmpPtr == NULL) {
taosMemoryFree(*ppHead);
terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
return -1;
}
*ppHead = tmpPtr;
(*ppHead)->ssize = sz;
}
void* ptr = (*ppHead)->content;
void* abuf = ptr;
tEncodeSTqConsumer(&abuf, pConsumer);
return 0;
}
int32_t tqDeserializeConsumer(STQ* pTq, const STqSerializedHead* pHead, STqConsumer** ppConsumer) {
const void* str = pHead->content;
*ppConsumer = taosMemoryCalloc(1, sizeof(STqConsumer));
if (*ppConsumer == NULL) {
terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
return -1;
}
if (tDecodeSTqConsumer(str, *ppConsumer) == NULL) {
terrno = TSDB_CODE_TQ_OUT_OF_MEMORY;
return -1;
}
STqConsumer* pConsumer = *ppConsumer;
int32_t sz = taosArrayGetSize(pConsumer->topics);
for (int32_t i = 0; i < sz; i++) {
STqTopic* pTopic = taosArrayGet(pConsumer->topics, i);
pTopic->pReadhandle = walOpenReadHandle(pTq->pWal);
if (pTopic->pReadhandle == NULL) {
ASSERT(false);
}
for (int j = 0; j < TQ_BUFFER_SIZE; j++) {
pTopic->buffer.output[j].status = 0;
STqReadHandle* pReadHandle = tqInitSubmitMsgScanner(pTq->pVnode->pMeta);
SReadHandle handle = {
.reader = pReadHandle,
.meta = pTq->pVnode->pMeta,
};
pTopic->buffer.output[j].pReadHandle = pReadHandle;
pTopic->buffer.output[j].task = qCreateStreamExecTaskInfo(pTopic->qmsg, &handle);
}
}
return 0;
}
int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
SMqPollReq* pReq = pMsg->pCont;
int64_t consumerId = pReq->consumerId;
int64_t waitTime = pReq->waitTime;
int32_t reqEpoch = pReq->epoch;
int64_t fetchOffset;
// get offset to fetch message
if (pReq->currentOffset == TMQ_CONF__RESET_OFFSET__EARLIEAST) {
fetchOffset = walGetFirstVer(pTq->pWal);
} else if (pReq->currentOffset == TMQ_CONF__RESET_OFFSET__LATEST) {
fetchOffset = walGetLastVer(pTq->pWal);
} else {
fetchOffset = pReq->currentOffset + 1;
}
tqDebug("tmq poll: consumer %ld (epoch %d) recv poll req in vg %d, req %ld %ld", consumerId, pReq->epoch,
TD_VID(pTq->pVnode), pReq->currentOffset, fetchOffset);
STqExec* pExec = taosHashGet(pTq->execs, pReq->subKey, strlen(pReq->subKey));
ASSERT(pExec);
int32_t consumerEpoch = atomic_load_32(&pExec->epoch);
while (consumerEpoch < reqEpoch) {
consumerEpoch = atomic_val_compare_exchange_32(&pExec->epoch, consumerEpoch, reqEpoch);
}
SWalHead* pHeadWithCkSum = taosMemoryMalloc(sizeof(SWalHead) + 2048);
if (pHeadWithCkSum == NULL) {
return -1;
}
walSetReaderCapacity(pExec->pWalReader, 2048);
SMqDataBlkRsp rsp = {0};
rsp.reqOffset = pReq->currentOffset;
rsp.withSchema = pExec->withSchema;
rsp.blockData = taosArrayInit(0, sizeof(void*));
rsp.blockDataLen = taosArrayInit(0, sizeof(int32_t));
rsp.blockSchema = taosArrayInit(0, sizeof(void*));
while (1) {
consumerEpoch = atomic_load_32(&pExec->epoch);
if (consumerEpoch > reqEpoch) {
tqDebug("tmq poll: consumer %ld (epoch %d) vg %d offset %ld, found new consumer epoch %d discard req epoch %d",
consumerId, pReq->epoch, TD_VID(pTq->pVnode), fetchOffset, consumerEpoch, reqEpoch);
break;
}
taosThreadMutexLock(&pExec->pWalReader->mutex);
if (walFetchHead(pExec->pWalReader, fetchOffset, pHeadWithCkSum) < 0) {
tqDebug("tmq poll: consumer %ld (epoch %d) vg %d offset %ld, no more log to return", consumerId, pReq->epoch,
TD_VID(pTq->pVnode), fetchOffset);
taosThreadMutexUnlock(&pExec->pWalReader->mutex);
break;
}
if (pHeadWithCkSum->head.msgType != TDMT_VND_SUBMIT) {
walSkipFetchBody(pExec->pWalReader, pHeadWithCkSum);
} else {
walFetchBody(pExec->pWalReader, &pHeadWithCkSum);
}
SWalReadHead* pHead = &pHeadWithCkSum->head;
taosThreadMutexUnlock(&pExec->pWalReader->mutex);
#if 0
SWalReadHead* pHead;
if (walReadWithHandle_s(pExec->pWalReader, fetchOffset, &pHead) < 0) {
// TODO: no more log, set timer to wait blocking time
// if data inserted during waiting, launch query and
// response to user
tqDebug("tmq poll: consumer %ld (epoch %d) vg %d offset %ld, no more log to return", consumerId, pReq->epoch,
TD_VID(pTq->pVnode), fetchOffset);
#if 0
// add to pushMgr
taosWLockLatch(&pExec->pushHandle.lock);
pExec->pushHandle.consumerId = consumerId;
pExec->pushHandle.epoch = reqEpoch;
pExec->pushHandle.reqOffset = rsp.reqOffset;
pExec->pushHandle.skipLogNum = rsp.skipLogNum;
pExec->pushHandle.handle = pMsg;
taosWUnLockLatch(&pExec->pushHandle.lock);
// TODO add timer
// TODO: the pointer will always be valid?
taosHashPut(pTq->pushMgr, &consumerId, sizeof(int64_t), &pExec, sizeof(void*));
taosArrayDestroy(rsp.blockData);
taosArrayDestroy(rsp.blockDataLen);
return 0;
#endif
break;
}
#endif
tqDebug("tmq poll: consumer %ld (epoch %d) iter log, vg %d offset %ld msgType %d", consumerId, pReq->epoch,
TD_VID(pTq->pVnode), fetchOffset, pHead->msgType);
if (pHead->msgType == TDMT_VND_SUBMIT) {
SSubmitReq* pCont = (SSubmitReq*)&pHead->body;
// table subscribe
if (pExec->subType == TOPIC_SUB_TYPE__TABLE) {
qTaskInfo_t task = pExec->task[workerId];
ASSERT(task);
qSetStreamInput(task, pCont, STREAM_DATA_TYPE_SUBMIT_BLOCK);
while (1) {
SSDataBlock* pDataBlock = NULL;
uint64_t ts = 0;
if (qExecTask(task, &pDataBlock, &ts) < 0) {
ASSERT(0);
}
if (pDataBlock == NULL) break;
ASSERT(pDataBlock->info.rows != 0);
ASSERT(pDataBlock->info.numOfCols != 0);
int32_t dataStrLen = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pDataBlock);
void* buf = taosMemoryCalloc(1, dataStrLen);
SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)buf;
pRetrieve->useconds = ts;
pRetrieve->precision = TSDB_DEFAULT_PRECISION;
pRetrieve->compressed = 0;
pRetrieve->completed = 1;
pRetrieve->numOfRows = htonl(pDataBlock->info.rows);
// TODO enable compress
int32_t actualLen = 0;
blockCompressEncode(pDataBlock, pRetrieve->data, &actualLen, pDataBlock->info.numOfCols, false);
actualLen += sizeof(SRetrieveTableRsp);
ASSERT(actualLen <= dataStrLen);
taosArrayPush(rsp.blockDataLen, &actualLen);
taosArrayPush(rsp.blockData, &buf);
if (pExec->withSchema) {
SSchemaWrapper* pSW = tCloneSSchemaWrapper(pExec->pExecReader[workerId]->pSchemaWrapper);
taosArrayPush(rsp.blockSchema, &pSW);
}
rsp.blockNum++;
}
// db subscribe
} else if (pExec->subType == TOPIC_SUB_TYPE__DB) {
STqReadHandle* pReader = pExec->pExecReader[workerId];
tqReadHandleSetMsg(pReader, pCont, 0);
while (tqNextDataBlock(pReader)) {
SSDataBlock block = {0};
if (tqRetrieveDataBlock(&block.pDataBlock, pReader, &block.info.groupId, &block.info.rows,
&block.info.numOfCols) < 0) {
ASSERT(0);
}
int32_t dataStrLen = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(&block);
void* buf = taosMemoryCalloc(1, dataStrLen);
SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)buf;
/*pRetrieve->useconds = 0;*/
pRetrieve->precision = TSDB_DEFAULT_PRECISION;
pRetrieve->compressed = 0;
pRetrieve->completed = 1;
pRetrieve->numOfRows = htonl(block.info.rows);
// TODO enable compress
int32_t actualLen = 0;
blockCompressEncode(&block, pRetrieve->data, &actualLen, block.info.numOfCols, false);
actualLen += sizeof(SRetrieveTableRsp);
ASSERT(actualLen <= dataStrLen);
taosArrayPush(rsp.blockDataLen, &actualLen);
taosArrayPush(rsp.blockData, &buf);
SSchemaWrapper* pSW = tCloneSSchemaWrapper(pExec->pExecReader[workerId]->pSchemaWrapper);
taosArrayPush(rsp.blockSchema, &pSW);
rsp.blockNum++;
}
} else {
ASSERT(0);
}
}
// TODO batch optimization:
// TODO continue scan until meeting batch requirement
if (rsp.blockNum != 0) break;
rsp.skipLogNum++;
fetchOffset++;
}
ASSERT(taosArrayGetSize(rsp.blockData) == rsp.blockNum);
ASSERT(taosArrayGetSize(rsp.blockDataLen) == rsp.blockNum);
if (rsp.blockNum != 0)
rsp.rspOffset = fetchOffset;
else
rsp.rspOffset = fetchOffset - 1;
int32_t tlen = sizeof(SMqRspHead) + tEncodeSMqDataBlkRsp(NULL, &rsp);
void* buf = rpcMallocCont(tlen);
if (buf == NULL) {
pMsg->code = -1;
return -1;
}
((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
((SMqRspHead*)buf)->epoch = pReq->epoch;
((SMqRspHead*)buf)->consumerId = consumerId;
void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
tEncodeSMqDataBlkRsp(&abuf, &rsp);
pMsg->pCont = buf;
pMsg->contLen = tlen;
pMsg->code = 0;
tmsgSendRsp(pMsg);
tqDebug("vg %d offset %ld from consumer %ld (epoch %d) send rsp, block num: %d, reqOffset: %ld, rspOffset: %ld",
TD_VID(pTq->pVnode), fetchOffset, consumerId, pReq->epoch, rsp.blockNum, rsp.reqOffset, rsp.rspOffset);
// TODO destroy
taosArrayDestroy(rsp.blockData);
taosArrayDestroy(rsp.blockDataLen);
taosArrayDestroyP(rsp.blockSchema, (FDelete)tDeleteSSchemaWrapper);
return 0;
}
#if 0
int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
SMqPollReq* pReq = pMsg->pCont;
int64_t consumerId = pReq->consumerId;
int64_t fetchOffset;
int64_t blockingTime = pReq->blockingTime;
int32_t reqEpoch = pReq->epoch;
if (pReq->currentOffset == TMQ_CONF__RESET_OFFSET__EARLIEAST) {
fetchOffset = walGetFirstVer(pTq->pWal);
} else if (pReq->currentOffset == TMQ_CONF__RESET_OFFSET__LATEST) {
fetchOffset = walGetLastVer(pTq->pWal);
} else {
fetchOffset = pReq->currentOffset + 1;
}
tqDebug("tmq poll: consumer %ld (epoch %d) recv poll req in vg %d, req %ld %ld", consumerId, pReq->epoch,
TD_VID(pTq->pVnode), pReq->currentOffset, fetchOffset);
SMqPollRspV2 rspV2 = {0};
rspV2.dataLen = 0;
STqConsumer* pConsumer = tqHandleGet(pTq->tqMeta, consumerId);
if (pConsumer == NULL) {
vWarn("tmq poll: consumer %ld (epoch %d) not found in vg %d", consumerId, pReq->epoch, TD_VID(pTq->pVnode));
pMsg->pCont = NULL;
pMsg->contLen = 0;
pMsg->code = -1;
tmsgSendRsp(pMsg);
return 0;
}
int32_t consumerEpoch = atomic_load_32(&pConsumer->epoch);
while (consumerEpoch < reqEpoch) {
consumerEpoch = atomic_val_compare_exchange_32(&pConsumer->epoch, consumerEpoch, reqEpoch);
}
STqTopic* pTopic = NULL;
int32_t topicSz = taosArrayGetSize(pConsumer->topics);
for (int32_t i = 0; i < topicSz; i++) {
STqTopic* topic = taosArrayGet(pConsumer->topics, i);
// TODO race condition
ASSERT(pConsumer->consumerId == consumerId);
if (strcmp(topic->topicName, pReq->topic) == 0) {
pTopic = topic;
break;
}
}
if (pTopic == NULL) {
vWarn("tmq poll: consumer %ld (epoch %d) topic %s not found in vg %d", consumerId, pReq->epoch, pReq->topic,
TD_VID(pTq->pVnode));
pMsg->pCont = NULL;
pMsg->contLen = 0;
pMsg->code = -1;
tmsgSendRsp(pMsg);
return 0;
}
tqDebug("poll topic %s from consumer %ld (epoch %d) vg %d", pTopic->topicName, consumerId, pReq->epoch,
TD_VID(pTq->pVnode));
rspV2.reqOffset = pReq->currentOffset;
rspV2.skipLogNum = 0;
while (1) {
/*if (fetchOffset > walGetLastVer(pTq->pWal) || walReadWithHandle(pTopic->pReadhandle, fetchOffset) < 0) {*/
// TODO
consumerEpoch = atomic_load_32(&pConsumer->epoch);
if (consumerEpoch > reqEpoch) {
tqDebug("tmq poll: consumer %ld (epoch %d) vg %d offset %ld, found new consumer epoch %d discard req epoch %d",
consumerId, pReq->epoch, TD_VID(pTq->pVnode), fetchOffset, consumerEpoch, reqEpoch);
break;
}
SWalReadHead* pHead;
if (walReadWithHandle_s(pTopic->pReadhandle, fetchOffset, &pHead) < 0) {
// TODO: no more log, set timer to wait blocking time
// if data inserted during waiting, launch query and
// response to user
tqDebug("tmq poll: consumer %ld (epoch %d) vg %d offset %ld, no more log to return", consumerId, pReq->epoch,
TD_VID(pTq->pVnode), fetchOffset);
break;
}
tqDebug("tmq poll: consumer %ld (epoch %d) iter log, vg %d offset %ld msgType %d", consumerId, pReq->epoch,
TD_VID(pTq->pVnode), fetchOffset, pHead->msgType);
/*int8_t pos = fetchOffset % TQ_BUFFER_SIZE;*/
/*pHead = pTopic->pReadhandle->pHead;*/
if (pHead->msgType == TDMT_VND_SUBMIT) {
SSubmitReq* pCont = (SSubmitReq*)&pHead->body;
qTaskInfo_t task = pTopic->buffer.output[workerId].task;
ASSERT(task);
qSetStreamInput(task, pCont, STREAM_DATA_TYPE_SUBMIT_BLOCK);
SArray* pRes = taosArrayInit(0, sizeof(SSDataBlock));
while (1) {
SSDataBlock* pDataBlock = NULL;
uint64_t ts;
if (qExecTask(task, &pDataBlock, &ts) < 0) {
ASSERT(false);
}
if (pDataBlock == NULL) {
/*pos = fetchOffset % TQ_BUFFER_SIZE;*/
break;
}
taosArrayPush(pRes, pDataBlock);
}
if (taosArrayGetSize(pRes) == 0) {
tqDebug("tmq poll: consumer %ld (epoch %d) iter log, vg %d skip log %ld since not wanted", consumerId,
pReq->epoch, TD_VID(pTq->pVnode), fetchOffset);
fetchOffset++;
rspV2.skipLogNum++;
taosArrayDestroy(pRes);
continue;
}
rspV2.rspOffset = fetchOffset;
int32_t blockSz = taosArrayGetSize(pRes);
int32_t dataBlockStrLen = 0;
for (int32_t i = 0; i < blockSz; i++) {
SSDataBlock* pBlock = taosArrayGet(pRes, i);
dataBlockStrLen += sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
}
void* dataBlockBuf = taosMemoryMalloc(dataBlockStrLen);
if (dataBlockBuf == NULL) {
pMsg->code = -1;
taosMemoryFree(pHead);
}
rspV2.blockData = dataBlockBuf;
int32_t pos;
rspV2.blockPos = taosArrayInit(blockSz, sizeof(int32_t));
for (int32_t i = 0; i < blockSz; i++) {
pos = 0;
SSDataBlock* pBlock = taosArrayGet(pRes, i);
SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)dataBlockBuf;
pRetrieve->useconds = 0;
pRetrieve->precision = 0;
pRetrieve->compressed = 0;
pRetrieve->completed = 1;
pRetrieve->numOfRows = htonl(pBlock->info.rows);
blockCompressEncode(pBlock, pRetrieve->data, &pos, pBlock->info.numOfCols, false);
taosArrayPush(rspV2.blockPos, &rspV2.dataLen);
int32_t totLen = sizeof(SRetrieveTableRsp) + pos;
pRetrieve->compLen = htonl(totLen);
rspV2.dataLen += totLen;
dataBlockBuf = POINTER_SHIFT(dataBlockBuf, totLen);
}
ASSERT(POINTER_DISTANCE(dataBlockBuf, rspV2.blockData) <= dataBlockStrLen);
int32_t msgLen = sizeof(SMqRspHead) + tEncodeSMqPollRspV2(NULL, &rspV2);
void* buf = rpcMallocCont(msgLen);
((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
((SMqRspHead*)buf)->epoch = pReq->epoch;
((SMqRspHead*)buf)->consumerId = consumerId;
void* msgBodyBuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
tEncodeSMqPollRspV2(&msgBodyBuf, &rspV2);
/*rsp.pBlockData = pRes;*/
/*taosArrayDestroyEx(rsp.pBlockData, (void (*)(void*))tDeleteSSDataBlock);*/
pMsg->pCont = buf;
pMsg->contLen = msgLen;
pMsg->code = 0;
tqDebug("vg %d offset %ld msgType %d from consumer %ld (epoch %d) actual rsp", TD_VID(pTq->pVnode), fetchOffset,
pHead->msgType, consumerId, pReq->epoch);
tmsgSendRsp(pMsg);
taosMemoryFree(pHead);
return 0;
} else {
taosMemoryFree(pHead);
fetchOffset++;
rspV2.skipLogNum++;
}
}
/*if (blockingTime != 0) {*/
/*tqAddClientPusher(pTq->tqPushMgr, pMsg, consumerId, blockingTime);*/
/*} else {*/
rspV2.rspOffset = fetchOffset - 1;
int32_t tlen = sizeof(SMqRspHead) + tEncodeSMqPollRspV2(NULL, &rspV2);
void* buf = rpcMallocCont(tlen);
if (buf == NULL) {
pMsg->code = -1;
return -1;
}
((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
((SMqRspHead*)buf)->epoch = pReq->epoch;
((SMqRspHead*)buf)->consumerId = consumerId;
void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
tEncodeSMqPollRspV2(&abuf, &rspV2);
pMsg->pCont = buf;
pMsg->contLen = tlen;
pMsg->code = 0;
tmsgSendRsp(pMsg);
tqDebug("vg %d offset %ld from consumer %ld (epoch %d) not rsp", TD_VID(pTq->pVnode), fetchOffset, consumerId,
pReq->epoch);
/*}*/
return 0;
}
#endif
// TODO: persist meta into tdb
int32_t tqProcessVgChangeReq(STQ* pTq, char* msg, int32_t msgLen) {
SMqRebVgReq req = {0};
tDecodeSMqRebVgReq(msg, &req);
// todo lock
STqExec* pExec = taosHashGet(pTq->execs, req.subKey, strlen(req.subKey));
if (pExec == NULL) {
ASSERT(req.oldConsumerId == -1);
ASSERT(req.newConsumerId != -1);
STqExec exec = {0};
pExec = &exec;
/*taosInitRWLatch(&pExec->lock);*/
memcpy(pExec->subKey, req.subKey, TSDB_SUBSCRIBE_KEY_LEN);
pExec->consumerId = req.newConsumerId;
pExec->epoch = -1;
pExec->subType = req.subType;
pExec->withTbName = req.withTbName;
pExec->withSchema = req.withSchema;
pExec->withTag = req.withTag;
pExec->qmsg = req.qmsg;
req.qmsg = NULL;
pExec->pWalReader = walOpenReadHandle(pTq->pVnode->pWal);
for (int32_t i = 0; i < 5; i++) {
pExec->pExecReader[i] = tqInitSubmitMsgScanner(pTq->pVnode->pMeta);
if (pExec->subType == TOPIC_SUB_TYPE__TABLE) {
SReadHandle handle = {
.reader = pExec->pExecReader[i],
.meta = pTq->pVnode->pMeta,
};
pExec->task[i] = qCreateStreamExecTaskInfo(pExec->qmsg, &handle);
ASSERT(pExec->task[i]);
} else {
pExec->task[i] = NULL;
}
}
taosHashPut(pTq->execs, req.subKey, strlen(req.subKey), pExec, sizeof(STqExec));
return 0;
} else {
/*if (req.newConsumerId != -1) {*/
/*taosWLockLatch(&pExec->lock);*/
ASSERT(pExec->consumerId == req.oldConsumerId);
// TODO handle qmsg and exec modification
atomic_store_32(&pExec->epoch, -1);
atomic_store_64(&pExec->consumerId, req.newConsumerId);
atomic_add_fetch_32(&pExec->epoch, 1);
/*taosWUnLockLatch(&pExec->lock);*/
return 0;
/*} else {*/
// TODO
/*taosHashRemove(pTq->tqMetaNew, req.subKey, strlen(req.subKey));*/
/*return 0;*/
/*}*/
}
}
int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask, int32_t parallel) {
if (pTask->execType == TASK_EXEC__NONE) return 0;
pTask->exec.numOfRunners = parallel;
pTask->exec.runners = taosMemoryCalloc(parallel, sizeof(SStreamRunner));
if (pTask->exec.runners == NULL) {
return -1;
}
for (int32_t i = 0; i < parallel; i++) {
STqReadHandle* pStreamReader = tqInitSubmitMsgScanner(pTq->pVnode->pMeta);
SReadHandle handle = {
.reader = pStreamReader,
.meta = pTq->pVnode->pMeta,
};
pTask->exec.runners[i].inputHandle = pStreamReader;
pTask->exec.runners[i].executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, &handle);
ASSERT(pTask->exec.runners[i].executor);
}
return 0;
}
int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
SStreamTask* pTask = taosMemoryMalloc(sizeof(SStreamTask));
if (pTask == NULL) {
return -1;
}
SCoder decoder;
tCoderInit(&decoder, TD_LITTLE_ENDIAN, (uint8_t*)msg, msgLen, TD_DECODER);
if (tDecodeSStreamTask(&decoder, pTask) < 0) {
ASSERT(0);
}
tCoderClear(&decoder);
// exec
if (tqExpandTask(pTq, pTask, 4) < 0) {
ASSERT(0);
}
// sink
pTask->ahandle = pTq->pVnode;
if (pTask->sinkType == TASK_SINK__SMA) {
pTask->smaSink.smaHandle = smaHandleRes;
}
taosHashPut(pTq->pStreamTasks, &pTask->taskId, sizeof(int32_t), pTask, sizeof(SStreamTask));
return 0;
}
int32_t tqProcessStreamTrigger(STQ* pTq, void* data, int32_t dataLen, int32_t workerId) {
void* pIter = NULL;
while (1) {
pIter = taosHashIterate(pTq->pStreamTasks, pIter);
if (pIter == NULL) break;
SStreamTask* pTask = (SStreamTask*)pIter;
if (streamExecTask(pTask, &pTq->pVnode->msgCb, data, STREAM_DATA_TYPE_SUBMIT_BLOCK, workerId) < 0) {
// TODO
}
}
return 0;
}
int32_t tqProcessTaskExec(STQ* pTq, char* msg, int32_t msgLen, int32_t workerId) {
SStreamTaskExecReq req;
tDecodeSStreamTaskExecReq(msg, &req);
int32_t taskId = req.taskId;
ASSERT(taskId);
SStreamTask* pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
ASSERT(pTask);
if (streamExecTask(pTask, &pTq->pVnode->msgCb, req.data, STREAM_DATA_TYPE_SSDATA_BLOCK, workerId) < 0) {
// TODO
}
return 0;
}
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