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homework-jianmu/source/libs/stream/src/streamDispatch.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 "streamInt.h"
#include "trpc.h"
#include "ttimer.h"
#include "tmisce.h"
typedef struct SBlockName {
uint32_t hashValue;
char parTbName[TSDB_TABLE_NAME_LEN];
} SBlockName;
typedef struct {
int32_t upStreamTaskId;
SEpSet upstreamNodeEpset;
SRpcMsg msg;
} SStreamChkptReadyInfo;
static void doRetryDispatchData(void* param, void* tmrId);
static int32_t doSendDispatchMsg(SStreamTask* pTask, const SStreamDispatchReq* pReq, int32_t vgId, SEpSet* pEpSet);
static int32_t streamAddBlockIntoDispatchMsg(const SSDataBlock* pBlock, SStreamDispatchReq* pReq);
static int32_t streamSearchAndAddBlock(SStreamTask* pTask, SStreamDispatchReq* pReqs, SSDataBlock* pDataBlock,
int32_t vgSz, int64_t groupId);
static int32_t doDispatchScanHistoryFinishMsg(SStreamTask* pTask, const SStreamScanHistoryFinishReq* pReq, int32_t vgId,
SEpSet* pEpSet);
static int32_t tInitStreamDispatchReq(SStreamDispatchReq* pReq, const SStreamTask* pTask, int32_t vgId,
int32_t numOfBlocks, int64_t dstTaskId, int32_t type);
void initRpcMsg(SRpcMsg* pMsg, int32_t msgType, void* pCont, int32_t contLen) {
pMsg->msgType = msgType;
pMsg->pCont = pCont;
pMsg->contLen = contLen;
}
int32_t tEncodeStreamDispatchReq(SEncoder* pEncoder, const SStreamDispatchReq* pReq) {
if (tStartEncode(pEncoder) < 0) return -1;
if (tEncodeI64(pEncoder, pReq->stage) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->msgId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->srcVgId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->type) < 0) return -1;
if (tEncodeI64(pEncoder, pReq->streamId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->taskId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->type) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->upstreamTaskId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->upstreamChildId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->upstreamNodeId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->blockNum) < 0) return -1;
if (tEncodeI64(pEncoder, pReq->totalLen) < 0) return -1;
ASSERT(taosArrayGetSize(pReq->data) == pReq->blockNum);
ASSERT(taosArrayGetSize(pReq->dataLen) == pReq->blockNum);
for (int32_t i = 0; i < pReq->blockNum; i++) {
int32_t len = *(int32_t*)taosArrayGet(pReq->dataLen, i);
void* data = taosArrayGetP(pReq->data, i);
if (tEncodeI32(pEncoder, len) < 0) return -1;
if (tEncodeBinary(pEncoder, data, len) < 0) return -1;
}
tEndEncode(pEncoder);
return pEncoder->pos;
}
int32_t tDecodeStreamDispatchReq(SDecoder* pDecoder, SStreamDispatchReq* pReq) {
if (tStartDecode(pDecoder) < 0) return -1;
if (tDecodeI64(pDecoder, &pReq->stage) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->msgId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->srcVgId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->type) < 0) return -1;
if (tDecodeI64(pDecoder, &pReq->streamId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->taskId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->type) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->upstreamTaskId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->upstreamChildId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->upstreamNodeId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->blockNum) < 0) return -1;
if (tDecodeI64(pDecoder, &pReq->totalLen) < 0) return -1;
ASSERT(pReq->blockNum > 0);
pReq->data = taosArrayInit(pReq->blockNum, sizeof(void*));
pReq->dataLen = taosArrayInit(pReq->blockNum, sizeof(int32_t));
for (int32_t i = 0; i < pReq->blockNum; i++) {
int32_t len1;
uint64_t len2;
void* data;
if (tDecodeI32(pDecoder, &len1) < 0) return -1;
if (tDecodeBinaryAlloc(pDecoder, &data, &len2) < 0) return -1;
ASSERT(len1 == len2);
taosArrayPush(pReq->dataLen, &len1);
taosArrayPush(pReq->data, &data);
}
tEndDecode(pDecoder);
return 0;
}
static int32_t tInitStreamDispatchReq(SStreamDispatchReq* pReq, const SStreamTask* pTask, int32_t vgId,
int32_t numOfBlocks, int64_t dstTaskId, int32_t type) {
pReq->streamId = pTask->id.streamId;
pReq->srcVgId = vgId;
pReq->stage = pTask->pMeta->stage;
pReq->msgId = pTask->execInfo.dispatch;
pReq->upstreamTaskId = pTask->id.taskId;
pReq->upstreamChildId = pTask->info.selfChildId;
pReq->upstreamNodeId = pTask->info.nodeId;
pReq->blockNum = numOfBlocks;
pReq->taskId = dstTaskId;
pReq->type = type;
pReq->data = taosArrayInit(numOfBlocks, POINTER_BYTES);
pReq->dataLen = taosArrayInit(numOfBlocks, sizeof(int32_t));
if (pReq->data == NULL || pReq->dataLen == NULL) {
taosArrayDestroyP(pReq->data, taosMemoryFree);
taosArrayDestroy(pReq->dataLen);
return TSDB_CODE_OUT_OF_MEMORY;
}
return TSDB_CODE_SUCCESS;
}
void tDeleteStreamDispatchReq(SStreamDispatchReq* pReq) {
taosArrayDestroyP(pReq->data, taosMemoryFree);
taosArrayDestroy(pReq->dataLen);
}
int32_t tEncodeStreamRetrieveReq(SEncoder* pEncoder, const SStreamRetrieveReq* pReq) {
if (tStartEncode(pEncoder) < 0) return -1;
if (tEncodeI64(pEncoder, pReq->streamId) < 0) return -1;
if (tEncodeI64(pEncoder, pReq->reqId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->dstNodeId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->dstTaskId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->srcNodeId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->srcTaskId) < 0) return -1;
if (tEncodeBinary(pEncoder, (const uint8_t*)pReq->pRetrieve, pReq->retrieveLen) < 0) return -1;
tEndEncode(pEncoder);
return pEncoder->pos;
}
int32_t tDecodeStreamRetrieveReq(SDecoder* pDecoder, SStreamRetrieveReq* pReq) {
if (tStartDecode(pDecoder) < 0) return -1;
if (tDecodeI64(pDecoder, &pReq->streamId) < 0) return -1;
if (tDecodeI64(pDecoder, &pReq->reqId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->dstNodeId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->dstTaskId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->srcNodeId) < 0) return -1;
if (tDecodeI32(pDecoder, &pReq->srcTaskId) < 0) return -1;
uint64_t len = 0;
if (tDecodeBinaryAlloc(pDecoder, (void**)&pReq->pRetrieve, &len) < 0) return -1;
pReq->retrieveLen = (int32_t)len;
tEndDecode(pDecoder);
return 0;
}
void tDeleteStreamRetrieveReq(SStreamRetrieveReq* pReq) { taosMemoryFree(pReq->pRetrieve); }
int32_t streamBroadcastToChildren(SStreamTask* pTask, const SSDataBlock* pBlock) {
int32_t code = -1;
SRetrieveTableRsp* pRetrieve = NULL;
void* buf = NULL;
int32_t dataStrLen = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
pRetrieve = taosMemoryCalloc(1, dataStrLen);
if (pRetrieve == NULL) return -1;
int32_t numOfCols = taosArrayGetSize(pBlock->pDataBlock);
pRetrieve->useconds = 0;
pRetrieve->precision = TSDB_DEFAULT_PRECISION;
pRetrieve->compressed = 0;
pRetrieve->completed = 1;
pRetrieve->streamBlockType = pBlock->info.type;
pRetrieve->numOfRows = htobe64((int64_t)pBlock->info.rows);
pRetrieve->numOfCols = htonl(numOfCols);
pRetrieve->skey = htobe64(pBlock->info.window.skey);
pRetrieve->ekey = htobe64(pBlock->info.window.ekey);
pRetrieve->version = htobe64(pBlock->info.version);
int32_t actualLen = blockEncode(pBlock, pRetrieve->data, numOfCols);
SStreamRetrieveReq req = {
.streamId = pTask->id.streamId,
.srcNodeId = pTask->info.nodeId,
.srcTaskId = pTask->id.taskId,
.pRetrieve = pRetrieve,
.retrieveLen = dataStrLen,
};
int32_t sz = taosArrayGetSize(pTask->upstreamInfo.pList);
ASSERT(sz > 0);
for (int32_t i = 0; i < sz; i++) {
req.reqId = tGenIdPI64();
SStreamChildEpInfo* pEpInfo = taosArrayGetP(pTask->upstreamInfo.pList, i);
req.dstNodeId = pEpInfo->nodeId;
req.dstTaskId = pEpInfo->taskId;
int32_t len;
tEncodeSize(tEncodeStreamRetrieveReq, &req, len, code);
if (code < 0) {
ASSERT(0);
return -1;
}
buf = rpcMallocCont(sizeof(SMsgHead) + len);
if (buf == NULL) {
goto CLEAR;
}
((SMsgHead*)buf)->vgId = htonl(pEpInfo->nodeId);
void* abuf = POINTER_SHIFT(buf, sizeof(SMsgHead));
SEncoder encoder;
tEncoderInit(&encoder, abuf, len);
tEncodeStreamRetrieveReq(&encoder, &req);
tEncoderClear(&encoder);
SRpcMsg rpcMsg = {0};
initRpcMsg(&rpcMsg, TDMT_STREAM_RETRIEVE, buf, len + sizeof(SMsgHead));
if (tmsgSendReq(&pEpInfo->epSet, &rpcMsg) < 0) {
ASSERT(0);
goto CLEAR;
}
buf = NULL;
stDebug("s-task:%s (child %d) send retrieve req to task:0x%x (vgId:%d), reqId:0x%" PRIx64, pTask->id.idStr,
pTask->info.selfChildId, pEpInfo->taskId, pEpInfo->nodeId, req.reqId);
}
code = 0;
CLEAR:
taosMemoryFree(pRetrieve);
rpcFreeCont(buf);
return code;
}
int32_t streamSendCheckMsg(SStreamTask* pTask, const SStreamTaskCheckReq* pReq, int32_t nodeId, SEpSet* pEpSet) {
void* buf = NULL;
int32_t code = -1;
SRpcMsg msg = {0};
int32_t tlen;
tEncodeSize(tEncodeStreamTaskCheckReq, pReq, tlen, code);
if (code < 0) {
return -1;
}
buf = rpcMallocCont(sizeof(SMsgHead) + tlen);
if (buf == NULL) {
return -1;
}
((SMsgHead*)buf)->vgId = htonl(nodeId);
void* abuf = POINTER_SHIFT(buf, sizeof(SMsgHead));
SEncoder encoder;
tEncoderInit(&encoder, abuf, tlen);
if ((code = tEncodeStreamTaskCheckReq(&encoder, pReq)) < 0) {
rpcFreeCont(buf);
return code;
}
tEncoderClear(&encoder);
initRpcMsg(&msg, TDMT_VND_STREAM_TASK_CHECK, buf, tlen + sizeof(SMsgHead));
stDebug("s-task:%s (level:%d) send check msg to s-task:0x%" PRIx64 ":0x%x (vgId:%d)", pTask->id.idStr,
pTask->info.taskLevel, pReq->streamId, pReq->downstreamTaskId, nodeId);
tmsgSendReq(pEpSet, &msg);
return 0;
}
void destroyDispatchMsg(SStreamDispatchReq* pReq, int32_t numOfVgroups) {
for (int32_t i = 0; i < numOfVgroups; i++) {
taosArrayDestroyP(pReq[i].data, taosMemoryFree);
taosArrayDestroy(pReq[i].dataLen);
}
taosMemoryFree(pReq);
}
int32_t getNumOfDispatchBranch(SStreamTask* pTask) {
return (pTask->outputInfo.type == TASK_OUTPUT__FIXED_DISPATCH)
? 1
: taosArrayGetSize(pTask->outputInfo.shuffleDispatcher.dbInfo.pVgroupInfos);
}
static int32_t doBuildDispatchMsg(SStreamTask* pTask, const SStreamDataBlock* pData) {
int32_t code = 0;
int32_t numOfBlocks = taosArrayGetSize(pData->blocks);
ASSERT(numOfBlocks != 0 && pTask->msgInfo.pData == NULL);
pTask->msgInfo.dispatchMsgType = pData->type;
if (pTask->outputInfo.type == TASK_OUTPUT__FIXED_DISPATCH) {
SStreamDispatchReq* pReq = taosMemoryCalloc(1, sizeof(SStreamDispatchReq));
int32_t downstreamTaskId = pTask->outputInfo.fixedDispatcher.taskId;
code = tInitStreamDispatchReq(pReq, pTask, pData->srcVgId, numOfBlocks, downstreamTaskId, pData->type);
if (code != TSDB_CODE_SUCCESS) {
return code;
}
for (int32_t i = 0; i < numOfBlocks; i++) {
SSDataBlock* pDataBlock = taosArrayGet(pData->blocks, i);
code = streamAddBlockIntoDispatchMsg(pDataBlock, pReq);
if (code != TSDB_CODE_SUCCESS) {
destroyDispatchMsg(pReq, 1);
return code;
}
}
pTask->msgInfo.pData = pReq;
} else if (pTask->outputInfo.type == TASK_OUTPUT__SHUFFLE_DISPATCH) {
int32_t rspCnt = atomic_load_32(&pTask->outputInfo.shuffleDispatcher.waitingRspCnt);
ASSERT(rspCnt == 0);
SArray* vgInfo = pTask->outputInfo.shuffleDispatcher.dbInfo.pVgroupInfos;
int32_t numOfVgroups = taosArrayGetSize(vgInfo);
SStreamDispatchReq* pReqs = taosMemoryCalloc(numOfVgroups, sizeof(SStreamDispatchReq));
if (pReqs == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
for (int32_t i = 0; i < numOfVgroups; i++) {
SVgroupInfo* pVgInfo = taosArrayGet(vgInfo, i);
code = tInitStreamDispatchReq(&pReqs[i], pTask, pData->srcVgId, 0, pVgInfo->taskId, pData->type);
if (code != TSDB_CODE_SUCCESS) {
destroyDispatchMsg(pReqs, numOfVgroups);
return code;
}
}
for (int32_t i = 0; i < numOfBlocks; i++) {
SSDataBlock* pDataBlock = taosArrayGet(pData->blocks, i);
// TODO: do not use broadcast
if (pDataBlock->info.type == STREAM_DELETE_RESULT || pDataBlock->info.type == STREAM_CHECKPOINT || pDataBlock->info.type == STREAM_TRANS_STATE) {
for (int32_t j = 0; j < numOfVgroups; j++) {
code = streamAddBlockIntoDispatchMsg(pDataBlock, &pReqs[j]);
if (code != 0) {
destroyDispatchMsg(pReqs, numOfVgroups);
return code;
}
if (pReqs[j].blockNum == 0) {
atomic_add_fetch_32(&pTask->outputInfo.shuffleDispatcher.waitingRspCnt, 1);
}
pReqs[j].blockNum++;
}
continue;
}
code = streamSearchAndAddBlock(pTask, pReqs, pDataBlock, numOfVgroups, pDataBlock->info.id.groupId);
if(code != 0) {
destroyDispatchMsg(pReqs, numOfVgroups);
return code;
}
}
pTask->msgInfo.pData = pReqs;
}
stDebug("s-task:%s build dispatch msg success, msgId:%d", pTask->id.idStr, pTask->execInfo.dispatch);
return code;
}
static int32_t sendDispatchMsg(SStreamTask* pTask, SStreamDispatchReq* pDispatchMsg) {
int32_t code = 0;
int32_t msgId = pTask->execInfo.dispatch;
const char* id = pTask->id.idStr;
if (pTask->outputInfo.type == TASK_OUTPUT__FIXED_DISPATCH) {
int32_t vgId = pTask->outputInfo.fixedDispatcher.nodeId;
SEpSet* pEpSet = &pTask->outputInfo.fixedDispatcher.epSet;
int32_t downstreamTaskId = pTask->outputInfo.fixedDispatcher.taskId;
stDebug("s-task:%s (child taskId:%d) fix-dispatch %d block(s) to s-task:0x%x (vgId:%d), id:%d", id,
pTask->info.selfChildId, 1, downstreamTaskId, vgId, msgId);
code = doSendDispatchMsg(pTask, pDispatchMsg, vgId, pEpSet);
} else {
SArray* vgInfo = pTask->outputInfo.shuffleDispatcher.dbInfo.pVgroupInfos;
int32_t numOfVgroups = taosArrayGetSize(vgInfo);
stDebug("s-task:%s (child taskId:%d) start to shuffle-dispatch blocks to %d vgroup(s), msgId:%d",
id, pTask->info.selfChildId, numOfVgroups, msgId);
for (int32_t i = 0; i < numOfVgroups; i++) {
if (pDispatchMsg[i].blockNum > 0) {
SVgroupInfo* pVgInfo = taosArrayGet(vgInfo, i);
stDebug("s-task:%s (child taskId:%d) shuffle-dispatch blocks:%d to vgId:%d", pTask->id.idStr,
pTask->info.selfChildId, pDispatchMsg[i].blockNum, pVgInfo->vgId);
code = doSendDispatchMsg(pTask, &pDispatchMsg[i], pVgInfo->vgId, &pVgInfo->epSet);
if (code < 0) {
break;
}
}
}
stDebug("s-task:%s complete shuffle-dispatch blocks to all %d vnodes, msgId:%d", pTask->id.idStr, numOfVgroups, msgId);
}
return code;
}
static void doRetryDispatchData(void* param, void* tmrId) {
SStreamTask* pTask = param;
const char* id = pTask->id.idStr;
int32_t msgId = pTask->execInfo.dispatch;
if (streamTaskShouldStop(pTask)) {
int32_t ref = atomic_sub_fetch_32(&pTask->status.timerActive, 1);
stDebug("s-task:%s should stop, abort from timer, ref:%d", pTask->id.idStr, ref);
return;
}
ASSERT(pTask->outputq.status == TASK_OUTPUT_STATUS__WAIT);
int32_t code = 0;
{
SArray* pList = taosArrayDup(pTask->msgInfo.pRetryList, NULL);
taosArrayClear(pTask->msgInfo.pRetryList);
SStreamDispatchReq *pReq = pTask->msgInfo.pData;
if (pTask->outputInfo.type == TASK_OUTPUT__SHUFFLE_DISPATCH) {
SArray* vgInfo = pTask->outputInfo.shuffleDispatcher.dbInfo.pVgroupInfos;
int32_t numOfVgroups = taosArrayGetSize(vgInfo);
int32_t numOfFailed = taosArrayGetSize(pList);
stDebug("s-task:%s (child taskId:%d) retry shuffle-dispatch blocks to %d vgroup(s), msgId:%d",
id, pTask->info.selfChildId, numOfFailed, msgId);
for (int32_t i = 0; i < numOfFailed; i++) {
int32_t vgId = *(int32_t*) taosArrayGet(pList, i);
for(int32_t j = 0; j < numOfVgroups; ++j) {
SVgroupInfo* pVgInfo = taosArrayGet(vgInfo, j);
if (pVgInfo->vgId == vgId) {
stDebug("s-task:%s (child taskId:%d) shuffle-dispatch blocks:%d to vgId:%d", pTask->id.idStr,
pTask->info.selfChildId, pReq[j].blockNum, pVgInfo->vgId);
code = doSendDispatchMsg(pTask, &pReq[j], pVgInfo->vgId, &pVgInfo->epSet);
if (code < 0) {
break;
}
}
}
}
stDebug("s-task:%s complete re-try shuffle-dispatch blocks to all %d vnodes, msgId:%d", pTask->id.idStr, numOfFailed, msgId);
} else {
int32_t vgId = pTask->outputInfo.fixedDispatcher.nodeId;
SEpSet* pEpSet = &pTask->outputInfo.fixedDispatcher.epSet;
int32_t downstreamTaskId = pTask->outputInfo.fixedDispatcher.taskId;
stDebug("s-task:%s (child taskId:%d) fix-dispatch %d block(s) to s-task:0x%x (vgId:%d), id:%d", id,
pTask->info.selfChildId, 1, downstreamTaskId, vgId, msgId);
code = doSendDispatchMsg(pTask, pReq, vgId, pEpSet);
}
taosArrayDestroy(pList);
}
if (code != TSDB_CODE_SUCCESS) {
if (!streamTaskShouldStop(pTask)) {
// stDebug("s-task:%s reset the waitRspCnt to be 0 before launch retry dispatch", pTask->id.idStr);
// atomic_store_32(&pTask->outputInfo.shuffleDispatcher.waitingRspCnt, 0);
if (streamTaskShouldPause(pTask)) {
streamRetryDispatchData(pTask, DISPATCH_RETRY_INTERVAL_MS * 10);
} else {
streamRetryDispatchData(pTask, DISPATCH_RETRY_INTERVAL_MS);
}
} else {
int32_t ref = atomic_sub_fetch_32(&pTask->status.timerActive, 1);
stDebug("s-task:%s should stop, abort from timer, ref:%d", pTask->id.idStr, ref);
}
} else {
int32_t ref = atomic_sub_fetch_32(&pTask->status.timerActive, 1);
stDebug("s-task:%s send success, jump out of timer, ref:%d", pTask->id.idStr, ref);
}
}
void streamRetryDispatchData(SStreamTask* pTask, int64_t waitDuration) {
pTask->msgInfo.retryCount++;
stWarn("s-task:%s retry send dispatch data in %" PRId64 "ms, in timer msgId:%d, retryTimes:%d", pTask->id.idStr,
waitDuration, pTask->execInfo.dispatch, pTask->msgInfo.retryCount);
if (pTask->msgInfo.pTimer != NULL) {
taosTmrReset(doRetryDispatchData, waitDuration, pTask, streamEnv.timer, &pTask->msgInfo.pTimer);
} else {
pTask->msgInfo.pTimer = taosTmrStart(doRetryDispatchData, waitDuration, pTask, streamEnv.timer);
}
}
int32_t streamSearchAndAddBlock(SStreamTask* pTask, SStreamDispatchReq* pReqs, SSDataBlock* pDataBlock, int32_t vgSz,
int64_t groupId) {
uint32_t hashValue = 0;
SArray* vgInfo = pTask->outputInfo.shuffleDispatcher.dbInfo.pVgroupInfos;
if (pTask->pNameMap == NULL) {
pTask->pNameMap = tSimpleHashInit(1024, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT));
}
void* pVal = tSimpleHashGet(pTask->pNameMap, &groupId, sizeof(int64_t));
if (pVal) {
SBlockName* pBln = (SBlockName*)pVal;
hashValue = pBln->hashValue;
if (!pDataBlock->info.parTbName[0]) {
memset(pDataBlock->info.parTbName, 0, TSDB_TABLE_NAME_LEN);
memcpy(pDataBlock->info.parTbName, pBln->parTbName, strlen(pBln->parTbName));
}
} else {
char* ctbName = taosMemoryCalloc(1, TSDB_TABLE_FNAME_LEN);
if (ctbName == NULL) {
return -1;
}
if (pDataBlock->info.parTbName[0]) {
snprintf(ctbName, TSDB_TABLE_NAME_LEN, "%s.%s", pTask->outputInfo.shuffleDispatcher.dbInfo.db, pDataBlock->info.parTbName);
} else {
buildCtbNameByGroupIdImpl(pTask->outputInfo.shuffleDispatcher.stbFullName, groupId, pDataBlock->info.parTbName);
snprintf(ctbName, TSDB_TABLE_NAME_LEN, "%s.%s", pTask->outputInfo.shuffleDispatcher.dbInfo.db, pDataBlock->info.parTbName);
}
/*uint32_t hashValue = MurmurHash3_32(ctbName, strlen(ctbName));*/
SUseDbRsp* pDbInfo = &pTask->outputInfo.shuffleDispatcher.dbInfo;
hashValue =
taosGetTbHashVal(ctbName, strlen(ctbName), pDbInfo->hashMethod, pDbInfo->hashPrefix, pDbInfo->hashSuffix);
taosMemoryFree(ctbName);
SBlockName bln = {0};
bln.hashValue = hashValue;
memcpy(bln.parTbName, pDataBlock->info.parTbName, strlen(pDataBlock->info.parTbName));
if (tSimpleHashGetSize(pTask->pNameMap) < MAX_BLOCK_NAME_NUM) {
tSimpleHashPut(pTask->pNameMap, &groupId, sizeof(int64_t), &bln, sizeof(SBlockName));
}
}
bool found = false;
// TODO: optimize search
int32_t j;
for (j = 0; j < vgSz; j++) {
SVgroupInfo* pVgInfo = taosArrayGet(vgInfo, j);
ASSERT(pVgInfo->vgId > 0);
if (hashValue >= pVgInfo->hashBegin && hashValue <= pVgInfo->hashEnd) {
if (streamAddBlockIntoDispatchMsg(pDataBlock, &pReqs[j]) < 0) {
return -1;
}
if (pReqs[j].blockNum == 0) {
atomic_add_fetch_32(&pTask->outputInfo.shuffleDispatcher.waitingRspCnt, 1);
}
pReqs[j].blockNum++;
found = true;
break;
}
}
ASSERT(found);
return 0;
}
int32_t streamDispatchStreamBlock(SStreamTask* pTask) {
ASSERT((pTask->outputInfo.type == TASK_OUTPUT__FIXED_DISPATCH || pTask->outputInfo.type == TASK_OUTPUT__SHUFFLE_DISPATCH));
const char* id = pTask->id.idStr;
int32_t numOfElems = streamQueueGetNumOfItems(pTask->outputq.queue);
if (numOfElems > 0) {
double size = SIZE_IN_MiB(taosQueueMemorySize(pTask->outputq.queue->pQueue));
stDebug("s-task:%s start to dispatch intermediate block to downstream, elem in outputQ:%d, size:%.2fMiB", id, numOfElems, size);
}
// to make sure only one dispatch is running
int8_t old =
atomic_val_compare_exchange_8(&pTask->outputq.status, TASK_OUTPUT_STATUS__NORMAL, TASK_OUTPUT_STATUS__WAIT);
if (old != TASK_OUTPUT_STATUS__NORMAL) {
stDebug("s-task:%s wait for dispatch rsp, not dispatch now, output status:%d", id, old);
return 0;
}
ASSERT(pTask->msgInfo.pData == NULL);
stDebug("s-task:%s start to dispatch msg, set output status:%d", id, pTask->outputq.status);
SStreamDataBlock* pBlock = streamQueueNextItem(pTask->outputq.queue);
if (pBlock == NULL) {
atomic_store_8(&pTask->outputq.status, TASK_OUTPUT_STATUS__NORMAL);
stDebug("s-task:%s not dispatch since no elems in outputQ, output status:%d", id, pTask->outputq.status);
return 0;
}
ASSERT(pBlock->type == STREAM_INPUT__DATA_BLOCK || pBlock->type == STREAM_INPUT__CHECKPOINT_TRIGGER ||
pBlock->type == STREAM_INPUT__TRANS_STATE);
pTask->execInfo.dispatch += 1;
pTask->msgInfo.startTs = taosGetTimestampMs();
int32_t code = doBuildDispatchMsg(pTask, pBlock);
if (code == 0) {
destroyStreamDataBlock(pBlock);
} else { // todo handle build dispatch msg failed
}
int32_t retryCount = 0;
while (1) {
code = sendDispatchMsg(pTask, pTask->msgInfo.pData);
if (code == TSDB_CODE_SUCCESS) {
break;
}
stDebug("s-task:%s failed to dispatch msg:%d to downstream, code:%s, output status:%d, retry cnt:%d", id,
pTask->execInfo.dispatch, tstrerror(terrno), pTask->outputq.status, retryCount);
// todo deal with only partially success dispatch case
atomic_store_32(&pTask->outputInfo.shuffleDispatcher.waitingRspCnt, 0);
if (terrno == TSDB_CODE_APP_IS_STOPPING) { // in case of this error, do not retry anymore
destroyDispatchMsg(pTask->msgInfo.pData, getNumOfDispatchBranch(pTask));
pTask->msgInfo.pData = NULL;
return code;
}
if (++retryCount > MAX_CONTINUE_RETRY_COUNT) { // add to timer to retry
int32_t ref = atomic_add_fetch_32(&pTask->status.timerActive, 1);
stDebug("s-task:%s failed to dispatch msg to downstream for %d times, code:%s, add timer to retry in %dms, ref:%d",
pTask->id.idStr, retryCount, tstrerror(terrno), DISPATCH_RETRY_INTERVAL_MS, ref);
streamRetryDispatchData(pTask, DISPATCH_RETRY_INTERVAL_MS);
break;
}
}
// this block can not be deleted until it has been sent to downstream task successfully.
return TSDB_CODE_SUCCESS;
}
int32_t streamDispatchScanHistoryFinishMsg(SStreamTask* pTask) {
SStreamScanHistoryFinishReq req = {
.streamId = pTask->id.streamId,
.childId = pTask->info.selfChildId,
.upstreamTaskId = pTask->id.taskId,
.upstreamNodeId = pTask->pMeta->vgId,
};
// serialize
if (pTask->outputInfo.type == TASK_OUTPUT__FIXED_DISPATCH) {
req.downstreamTaskId = pTask->outputInfo.fixedDispatcher.taskId;
pTask->notReadyTasks = 1;
doDispatchScanHistoryFinishMsg(pTask, &req, pTask->outputInfo.fixedDispatcher.nodeId, &pTask->outputInfo.fixedDispatcher.epSet);
} else if (pTask->outputInfo.type == TASK_OUTPUT__SHUFFLE_DISPATCH) {
SArray* vgInfo = pTask->outputInfo.shuffleDispatcher.dbInfo.pVgroupInfos;
int32_t numOfVgs = taosArrayGetSize(vgInfo);
pTask->notReadyTasks = numOfVgs;
char* p = NULL;
streamTaskGetStatus(pTask, &p);
stDebug("s-task:%s send scan-history data complete msg to downstream (shuffle-dispatch) %d tasks, status:%s", pTask->id.idStr,
numOfVgs, p);
for (int32_t i = 0; i < numOfVgs; i++) {
SVgroupInfo* pVgInfo = taosArrayGet(vgInfo, i);
req.downstreamTaskId = pVgInfo->taskId;
doDispatchScanHistoryFinishMsg(pTask, &req, pVgInfo->vgId, &pVgInfo->epSet);
}
} else {
stDebug("s-task:%s no downstream tasks, invoke scan-history finish rsp directly", pTask->id.idStr);
streamProcessScanHistoryFinishRsp(pTask);
}
return 0;
}
// this function is usually invoked by sink/agg task
int32_t streamTaskSendCheckpointReadyMsg(SStreamTask* pTask) {
int32_t num = taosArrayGetSize(pTask->pReadyMsgList);
ASSERT(taosArrayGetSize(pTask->upstreamInfo.pList) == num);
for (int32_t i = 0; i < num; ++i) {
SStreamChkptReadyInfo* pInfo = taosArrayGet(pTask->pReadyMsgList, i);
tmsgSendReq(&pInfo->upstreamNodeEpset, &pInfo->msg);
stDebug("s-task:%s level:%d checkpoint ready msg sent to upstream:0x%x", pTask->id.idStr, pTask->info.taskLevel,
pInfo->upStreamTaskId);
}
taosArrayClear(pTask->pReadyMsgList);
stDebug("s-task:%s level:%d checkpoint ready msg sent to all %d upstreams", pTask->id.idStr, pTask->info.taskLevel, num);
return TSDB_CODE_SUCCESS;
}
// this function is only invoked by source task, and send rsp to mnode
int32_t streamTaskSendCheckpointSourceRsp(SStreamTask* pTask) {
ASSERT(pTask->info.taskLevel == TASK_LEVEL__SOURCE && taosArrayGetSize(pTask->pReadyMsgList) == 1);
SStreamChkptReadyInfo* pInfo = taosArrayGet(pTask->pReadyMsgList, 0);
tmsgSendRsp(&pInfo->msg);
taosArrayClear(pTask->pReadyMsgList);
stDebug("s-task:%s level:%d source checkpoint completed msg sent to mnode", pTask->id.idStr, pTask->info.taskLevel);
return TSDB_CODE_SUCCESS;
}
int32_t streamAddBlockIntoDispatchMsg(const SSDataBlock* pBlock, SStreamDispatchReq* pReq) {
int32_t dataStrLen = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
void* buf = taosMemoryCalloc(1, dataStrLen);
if (buf == NULL) return -1;
SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)buf;
pRetrieve->useconds = 0;
pRetrieve->precision = TSDB_DEFAULT_PRECISION;
pRetrieve->compressed = 0;
pRetrieve->completed = 1;
pRetrieve->streamBlockType = pBlock->info.type;
pRetrieve->numOfRows = htobe64((int64_t)pBlock->info.rows);
pRetrieve->skey = htobe64(pBlock->info.window.skey);
pRetrieve->ekey = htobe64(pBlock->info.window.ekey);
pRetrieve->version = htobe64(pBlock->info.version);
pRetrieve->watermark = htobe64(pBlock->info.watermark);
memcpy(pRetrieve->parTbName, pBlock->info.parTbName, TSDB_TABLE_NAME_LEN);
int32_t numOfCols = (int32_t)taosArrayGetSize(pBlock->pDataBlock);
pRetrieve->numOfCols = htonl(numOfCols);
int32_t actualLen = blockEncode(pBlock, pRetrieve->data, numOfCols);
actualLen += sizeof(SRetrieveTableRsp);
ASSERT(actualLen <= dataStrLen);
taosArrayPush(pReq->dataLen, &actualLen);
taosArrayPush(pReq->data, &buf);
pReq->totalLen += dataStrLen;
return 0;
}
int32_t doDispatchScanHistoryFinishMsg(SStreamTask* pTask, const SStreamScanHistoryFinishReq* pReq, int32_t vgId,
SEpSet* pEpSet) {
void* buf = NULL;
int32_t code = -1;
SRpcMsg msg = {0};
int32_t tlen;
tEncodeSize(tEncodeStreamScanHistoryFinishReq, pReq, tlen, code);
if (code < 0) {
return -1;
}
buf = rpcMallocCont(sizeof(SMsgHead) + tlen);
if (buf == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
((SMsgHead*)buf)->vgId = htonl(vgId);
void* abuf = POINTER_SHIFT(buf, sizeof(SMsgHead));
SEncoder encoder;
tEncoderInit(&encoder, abuf, tlen);
if ((code = tEncodeStreamScanHistoryFinishReq(&encoder, pReq)) < 0) {
if (buf) {
rpcFreeCont(buf);
}
return code;
}
tEncoderClear(&encoder);
initRpcMsg(&msg, TDMT_VND_STREAM_SCAN_HISTORY_FINISH, buf, tlen + sizeof(SMsgHead));
tmsgSendReq(pEpSet, &msg);
char* p = NULL;
streamTaskGetStatus(pTask, &p);
stDebug("s-task:%s status:%s dispatch scan-history finish msg to taskId:0x%x (vgId:%d)", pTask->id.idStr, p,
pReq->downstreamTaskId, vgId);
return 0;
}
int32_t doSendDispatchMsg(SStreamTask* pTask, const SStreamDispatchReq* pReq, int32_t vgId, SEpSet* pEpSet) {
void* buf = NULL;
int32_t code = -1;
SRpcMsg msg = {0};
// serialize
int32_t tlen;
tEncodeSize(tEncodeStreamDispatchReq, pReq, tlen, code);
if (code < 0) {
goto FAIL;
}
code = -1;
buf = rpcMallocCont(sizeof(SMsgHead) + tlen);
if (buf == NULL) {
goto FAIL;
}
((SMsgHead*)buf)->vgId = htonl(vgId);
void* abuf = POINTER_SHIFT(buf, sizeof(SMsgHead));
SEncoder encoder;
tEncoderInit(&encoder, abuf, tlen);
if ((code = tEncodeStreamDispatchReq(&encoder, pReq)) < 0) {
goto FAIL;
}
tEncoderClear(&encoder);
initRpcMsg(&msg, pTask->msgInfo.msgType, buf, tlen + sizeof(SMsgHead));
stDebug("s-task:%s dispatch msg to taskId:0x%x vgId:%d data msg", pTask->id.idStr, pReq->taskId, vgId);
return tmsgSendReq(pEpSet, &msg);
FAIL:
if (buf) {
rpcFreeCont(buf);
}
return code;
}
int32_t buildCheckpointSourceRsp(SStreamCheckpointSourceReq* pReq, SRpcHandleInfo* pRpcInfo, SRpcMsg* pMsg,
int8_t isSucceed) {
int32_t len = 0;
int32_t code = 0;
SEncoder encoder;
SStreamCheckpointSourceRsp rsp = {
.checkpointId = pReq->checkpointId,
.taskId = pReq->taskId,
.nodeId = pReq->nodeId,
.streamId = pReq->streamId,
.expireTime = pReq->expireTime,
.mnodeId = pReq->mnodeId,
.success = isSucceed,
};
tEncodeSize(tEncodeStreamCheckpointSourceRsp, &rsp, len, code);
if (code < 0) {
return code;
}
void* pBuf = rpcMallocCont(sizeof(SMsgHead) + len);
if (pBuf == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
((SMsgHead*)pBuf)->vgId = htonl(pReq->mnodeId);
void* abuf = POINTER_SHIFT(pBuf, sizeof(SMsgHead));
tEncoderInit(&encoder, (uint8_t*)abuf, len);
tEncodeStreamCheckpointSourceRsp(&encoder, &rsp);
tEncoderClear(&encoder);
initRpcMsg(pMsg, 0, pBuf, sizeof(SMsgHead) + len);
pMsg->info = *pRpcInfo;
return 0;
}
int32_t streamAddCheckpointSourceRspMsg(SStreamCheckpointSourceReq* pReq, SRpcHandleInfo* pRpcInfo,
SStreamTask* pTask, int8_t isSucceed) {
SStreamChkptReadyInfo info = {0};
buildCheckpointSourceRsp(pReq, pRpcInfo, &info.msg, isSucceed);
if (pTask->pReadyMsgList == NULL) {
pTask->pReadyMsgList = taosArrayInit(4, sizeof(SStreamChkptReadyInfo));
}
taosArrayPush(pTask->pReadyMsgList, &info);
stDebug("s-task:%s add checkpoint source rsp msg, total:%d", pTask->id.idStr, (int32_t)taosArrayGetSize(pTask->pReadyMsgList));
return TSDB_CODE_SUCCESS;
}
int32_t streamAddCheckpointReadyMsg(SStreamTask* pTask, int32_t upstreamTaskId, int32_t index, int64_t checkpointId) {
int32_t code = 0;
int32_t tlen = 0;
void* buf = NULL;
if (pTask->info.taskLevel == TASK_LEVEL__SOURCE) {
return TSDB_CODE_SUCCESS;
}
SStreamChildEpInfo* pInfo = streamTaskGetUpstreamTaskEpInfo(pTask, upstreamTaskId);
SStreamCheckpointReadyMsg req = {0};
req.downstreamNodeId = pTask->pMeta->vgId;
req.downstreamTaskId = pTask->id.taskId;
req.streamId = pTask->id.streamId;
req.checkpointId = checkpointId;
req.childId = pInfo->childId;
req.upstreamNodeId = pInfo->nodeId;
req.upstreamTaskId = pInfo->taskId;
tEncodeSize(tEncodeStreamCheckpointReadyMsg, &req, tlen, code);
if (code < 0) {
return -1;
}
buf = rpcMallocCont(sizeof(SMsgHead) + tlen);
if (buf == NULL) {
return -1;
}
((SMsgHead*)buf)->vgId = htonl(req.upstreamNodeId);
void* abuf = POINTER_SHIFT(buf, sizeof(SMsgHead));
SEncoder encoder;
tEncoderInit(&encoder, abuf, tlen);
if ((code = tEncodeStreamCheckpointReadyMsg(&encoder, &req)) < 0) {
rpcFreeCont(buf);
return code;
}
tEncoderClear(&encoder);
ASSERT(req.upstreamTaskId != 0);
SStreamChkptReadyInfo info = {.upStreamTaskId = pInfo->taskId, .upstreamNodeEpset = pInfo->epSet};
initRpcMsg(&info.msg, TDMT_STREAM_TASK_CHECKPOINT_READY, buf, tlen + sizeof(SMsgHead));
info.msg.info.noResp = 1; // refactor later.
stDebug("s-task:%s (level:%d) prepare checkpoint ready msg to upstream s-task:0x%" PRIx64 ":0x%x (vgId:%d) idx:%d",
pTask->id.idStr, pTask->info.taskLevel, req.streamId, req.upstreamTaskId, req.upstreamNodeId, index);
if (pTask->pReadyMsgList == NULL) {
pTask->pReadyMsgList = taosArrayInit(4, sizeof(SStreamChkptReadyInfo));
}
taosArrayPush(pTask->pReadyMsgList, &info);
return 0;
}
int32_t tEncodeCompleteHistoryDataMsg(SEncoder* pEncoder, const SStreamCompleteHistoryMsg* pReq) {
if (tStartEncode(pEncoder) < 0) return -1;
if (tEncodeI64(pEncoder, pReq->streamId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->downstreamId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->downstreamNode) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->upstreamTaskId) < 0) return -1;
if (tEncodeI32(pEncoder, pReq->upstreamNodeId) < 0) return -1;
tEndEncode(pEncoder);
return pEncoder->pos;
}
int32_t tDecodeCompleteHistoryDataMsg(SDecoder* pDecoder, SStreamCompleteHistoryMsg* pRsp) {
if (tStartDecode(pDecoder) < 0) return -1;
if (tDecodeI64(pDecoder, &pRsp->streamId) < 0) return -1;
if (tDecodeI32(pDecoder, &pRsp->downstreamId) < 0) return -1;
if (tDecodeI32(pDecoder, &pRsp->downstreamNode) < 0) return -1;
if (tDecodeI32(pDecoder, &pRsp->upstreamTaskId) < 0) return -1;
if (tDecodeI32(pDecoder, &pRsp->upstreamNodeId) < 0) return -1;
tEndDecode(pDecoder);
return 0;
}
int32_t streamTaskBuildScanhistoryRspMsg(SStreamTask* pTask, SStreamScanHistoryFinishReq* pReq, void** pBuffer, int32_t* pLen) {
int32_t len = 0;
int32_t code = 0;
SEncoder encoder;
SStreamCompleteHistoryMsg msg = {
.streamId = pReq->streamId,
.upstreamTaskId = pReq->upstreamTaskId,
.upstreamNodeId = pReq->upstreamNodeId,
.downstreamId = pReq->downstreamTaskId,
.downstreamNode = pTask->pMeta->vgId,
};
tEncodeSize(tEncodeCompleteHistoryDataMsg, &msg, len, code);
if (code < 0) {
return code;
}
void* pBuf = rpcMallocCont(sizeof(SMsgHead) + len);
if (pBuf == NULL) {
return TSDB_CODE_OUT_OF_MEMORY;
}
((SMsgHead*)pBuf)->vgId = htonl(pReq->upstreamNodeId);
void* abuf = POINTER_SHIFT(pBuf, sizeof(SMsgHead));
tEncoderInit(&encoder, (uint8_t*)abuf, len);
tEncodeCompleteHistoryDataMsg(&encoder, &msg);
tEncoderClear(&encoder);
*pBuffer = pBuf;
*pLen = len;
return 0;
}
int32_t streamAddEndScanHistoryMsg(SStreamTask* pTask, SRpcHandleInfo* pRpcInfo, SStreamScanHistoryFinishReq* pReq) {
void* pBuf = NULL;
int32_t len = 0;
streamTaskBuildScanhistoryRspMsg(pTask, pReq, &pBuf, &len);
SStreamChildEpInfo* pInfo = streamTaskGetUpstreamTaskEpInfo(pTask, pReq->upstreamTaskId);
SStreamContinueExecInfo info = {.taskId = pReq->upstreamTaskId, .epset = pInfo->epSet};
initRpcMsg(&info.msg, 0, pBuf, sizeof(SMsgHead) + len);
info.msg.info = *pRpcInfo;
taosThreadMutexLock(&pTask->lock);
if (pTask->pRspMsgList == NULL) {
pTask->pRspMsgList = taosArrayInit(4, sizeof(SStreamContinueExecInfo));
}
taosArrayPush(pTask->pRspMsgList, &info);
taosThreadMutexUnlock(&pTask->lock);
int32_t num = taosArrayGetSize(pTask->pRspMsgList);
stDebug("s-task:%s add scan-history finish rsp msg for task:0x%x, total:%d", pTask->id.idStr, pReq->upstreamTaskId,
num);
return TSDB_CODE_SUCCESS;
}
int32_t streamNotifyUpstreamContinue(SStreamTask* pTask) {
ASSERT(pTask->info.taskLevel == TASK_LEVEL__AGG || pTask->info.taskLevel == TASK_LEVEL__SINK);
const char* id = pTask->id.idStr;
int32_t level = pTask->info.taskLevel;
int32_t num = taosArrayGetSize(pTask->pRspMsgList);
for (int32_t i = 0; i < num; ++i) {
SStreamContinueExecInfo* pInfo = taosArrayGet(pTask->pRspMsgList, i);
tmsgSendRsp(&pInfo->msg);
stDebug("s-task:%s level:%d notify upstream:0x%x continuing handle data in WAL", id, level, pInfo->taskId);
}
taosArrayClear(pTask->pRspMsgList);
stDebug("s-task:%s level:%d continue process msg sent to all %d upstreams", id, level, num);
return 0;
}
static void dispatchDataInFuture(void* param, void* tmrId) {
SStreamTask* pTask = param;
if (streamTaskShouldStop(pTask)) {
int32_t ref = atomic_sub_fetch_32(&pTask->status.timerActive, 1);
stDebug("s-task:%s should stop, abort from timer, ref:%d", pTask->id.idStr, ref);
return;
}
ETaskStatus status = streamTaskGetStatus(pTask, NULL);
if (status == TASK_STATUS__CK) {
stDebug("s-task:%s in checkpoint status, wait for 500ms to dispatch data downstream", pTask->id.idStr);
taosTmrReset(dispatchDataInFuture, 500, pTask, streamEnv.timer, &pTask->msgInfo.pTimer);
} else {
int32_t ref = atomic_sub_fetch_32(&pTask->status.timerActive, 1);
stDebug("s-task:%s start to dispatch data, jump out of timer, ref:%d", pTask->id.idStr, ref);
streamDispatchStreamBlock(pTask);
}
}
// this message has been sent successfully, let's try next one.
static int32_t handleDispatchSuccessRsp(SStreamTask* pTask, int32_t downstreamId) {
destroyDispatchMsg(pTask->msgInfo.pData, getNumOfDispatchBranch(pTask));
bool delayDispatch = (pTask->msgInfo.dispatchMsgType == STREAM_INPUT__CHECKPOINT_TRIGGER);
pTask->msgInfo.pData = NULL;
pTask->msgInfo.dispatchMsgType = 0;
int64_t el = taosGetTimestampMs() - pTask->msgInfo.startTs;
// put data into inputQ of current task is also allowed
if (pTask->inputq.status == TASK_INPUT_STATUS__BLOCKED) {
pTask->inputq.status = TASK_INPUT_STATUS__NORMAL;
stDebug("s-task:%s downstream task:0x%x resume to normal from inputQ blocking, blocking time:%" PRId64 "ms",
pTask->id.idStr, downstreamId, el);
} else {
stDebug("s-task:%s dispatch completed, elapsed time:%"PRId64"ms", pTask->id.idStr, el);
}
// now ready for next data output
atomic_store_8(&pTask->outputq.status, TASK_OUTPUT_STATUS__NORMAL);
// otherwise, continue dispatch the first block to down stream task in pipeline
if (delayDispatch) {
int32_t ref = atomic_add_fetch_32(&pTask->status.timerActive, 1);
stDebug("s-task:%s in checkpoint status, add in timer, try dispatch data in 500ms, ref:%d", pTask->id.idStr, ref);
if (pTask->msgInfo.pTimer != NULL) {
taosTmrReset(dispatchDataInFuture, 500, pTask, streamEnv.timer, &pTask->msgInfo.pTimer);
} else {
pTask->msgInfo.pTimer = taosTmrStart(dispatchDataInFuture, 500, pTask, streamEnv.timer);
}
} else {
streamDispatchStreamBlock(pTask);
}
return 0;
}
int32_t streamProcessDispatchRsp(SStreamTask* pTask, SStreamDispatchRsp* pRsp, int32_t code) {
const char* id = pTask->id.idStr;
int32_t vgId = pTask->pMeta->vgId;
int32_t msgId = pTask->execInfo.dispatch;
// follower not handle the dispatch rsp
if ((pTask->pMeta->role == NODE_ROLE_FOLLOWER) || (pTask->status.downstreamReady != 1)) {
stError("s-task:%s vgId:%d is follower or task just re-launched, not handle the dispatch rsp, discard it", id, vgId);
return TSDB_CODE_STREAM_TASK_NOT_EXIST;
}
// discard invalid dispatch rsp msg
if ((pRsp->msgId != msgId) || (pRsp->stage != pTask->pMeta->stage)) {
stError("s-task:%s vgId:%d not expect rsp, expected: msgId:%d, stage:%" PRId64 " actual msgId:%d, stage:%" PRId64
" discard it",
id, vgId, msgId, pTask->pMeta->stage, pRsp->msgId, pRsp->stage);
return TSDB_CODE_INVALID_MSG;
}
if (code != TSDB_CODE_SUCCESS) {
// dispatch message failed: network error, or node not available.
// in case of the input queue is full, the code will be TSDB_CODE_SUCCESS, the and pRsp->inputStatus will be set
// flag. Here we need to retry dispatch this message to downstream task immediately. handle the case the failure
// happened too fast.
if (code == TSDB_CODE_STREAM_TASK_NOT_EXIST) { // destination task does not exist, not retry anymore
stError("s-task:%s failed to dispatch msg to task:0x%x(vgId:%d), msgId:%d no retry, since task destroyed already", id,
pRsp->downstreamTaskId, pRsp->downstreamNodeId, msgId);
} else {
stError("s-task:%s failed to dispatch msgId:%d to task:0x%x(vgId:%d), code:%s, add to retry list", id, msgId,
pRsp->downstreamTaskId, pRsp->downstreamNodeId, tstrerror(code));
taosThreadMutexLock(&pTask->lock);
taosArrayPush(pTask->msgInfo.pRetryList, &pRsp->downstreamNodeId);
taosThreadMutexUnlock(&pTask->lock);
}
} else { // code == 0
if (pRsp->inputStatus == TASK_INPUT_STATUS__BLOCKED) {
pTask->inputq.status = TASK_INPUT_STATUS__BLOCKED;
// block the input of current task, to push pressure to upstream
taosThreadMutexLock(&pTask->lock);
taosArrayPush(pTask->msgInfo.pRetryList, &pRsp->downstreamNodeId);
taosThreadMutexUnlock(&pTask->lock);
stWarn("s-task:%s inputQ of downstream task:0x%x(vgId:%d) is full, wait for %dms and retry dispatch", id,
pRsp->downstreamTaskId, pRsp->downstreamNodeId, DISPATCH_RETRY_INTERVAL_MS);
} else if (pRsp->inputStatus == TASK_INPUT_STATUS__REFUSED) {
stError("s-task:%s downstream task:0x%x(vgId:%d) refused the dispatch msg, treat it as success", id,
pRsp->downstreamTaskId, pRsp->downstreamNodeId);
}
}
int32_t leftRsp = 0;
if (pTask->outputInfo.type == TASK_OUTPUT__SHUFFLE_DISPATCH) {
leftRsp = atomic_sub_fetch_32(&pTask->outputInfo.shuffleDispatcher.waitingRspCnt, 1);
ASSERT(leftRsp >= 0);
if (leftRsp > 0) {
stDebug( "s-task:%s recv dispatch rsp, msgId:%d from 0x%x(vgId:%d), downstream task input status:%d code:%s, waiting for %d rsp",
id, msgId, pRsp->downstreamTaskId, pRsp->downstreamNodeId, pRsp->inputStatus, tstrerror(code), leftRsp);
} else {
stDebug(
"s-task:%s recv dispatch rsp, msgId:%d from 0x%x(vgId:%d), downstream task input status:%d code:%s, all rsp",
id, msgId, pRsp->downstreamTaskId, pRsp->downstreamNodeId, pRsp->inputStatus, tstrerror(code));
}
} else {
stDebug("s-task:%s recv fix-dispatch rsp, msgId:%d from 0x%x(vgId:%d), downstream task input status:%d code:%s",
id, msgId, pRsp->downstreamTaskId, pRsp->downstreamNodeId, pRsp->inputStatus, tstrerror(code));
}
ASSERT(leftRsp >= 0);
// all msg rsp already, continue
if (leftRsp == 0) {
ASSERT(pTask->outputq.status == TASK_OUTPUT_STATUS__WAIT);
// we need to re-try send dispatch msg to downstream tasks
int32_t numOfFailed = taosArrayGetSize(pTask->msgInfo.pRetryList);
if (numOfFailed > 0) {
if (pTask->outputInfo.type == TASK_OUTPUT__SHUFFLE_DISPATCH) {
atomic_store_32(&pTask->outputInfo.shuffleDispatcher.waitingRspCnt, numOfFailed);
stDebug("s-task:%s waiting rsp set to be %d", id, pTask->outputInfo.shuffleDispatcher.waitingRspCnt);
}
int32_t ref = atomic_add_fetch_32(&pTask->status.timerActive, 1);
stDebug("s-task:%s failed to dispatch msg to downstream, add into timer to retry in %dms, ref:%d",
pTask->id.idStr, DISPATCH_RETRY_INTERVAL_MS, ref);
streamRetryDispatchData(pTask, DISPATCH_RETRY_INTERVAL_MS);
} else { // this message has been sent successfully, let's try next one.
pTask->msgInfo.retryCount = 0;
// transtate msg has been sent to downstream successfully. let's transfer the fill-history task state
if (pTask->msgInfo.dispatchMsgType == STREAM_INPUT__TRANS_STATE) {
stDebug("s-task:%s dispatch transtate msgId:%d to downstream successfully, start to transfer state", id, msgId);
ASSERT(pTask->info.fillHistory == 1);
code = streamTransferStateToStreamTask(pTask);
if (code != TSDB_CODE_SUCCESS) { // todo: do nothing if error happens
}
// now ready for next data output
atomic_store_8(&pTask->outputq.status, TASK_OUTPUT_STATUS__NORMAL);
} else {
handleDispatchSuccessRsp(pTask, pRsp->downstreamTaskId);
}
}
}
return 0;
}
int32_t tEncodeStreamTaskUpdateMsg(SEncoder* pEncoder, const SStreamTaskNodeUpdateMsg* pMsg) {
if (tStartEncode(pEncoder) < 0) return -1;
if (tEncodeI64(pEncoder, pMsg->streamId) < 0) return -1;
if (tEncodeI32(pEncoder, pMsg->taskId) < 0) return -1;
int32_t size = taosArrayGetSize(pMsg->pNodeList);
if (tEncodeI32(pEncoder, size) < 0) return -1;
for (int32_t i = 0; i < size; ++i) {
SNodeUpdateInfo* pInfo = taosArrayGet(pMsg->pNodeList, i);
if (tEncodeI32(pEncoder, pInfo->nodeId) < 0) return -1;
if (tEncodeSEpSet(pEncoder, &pInfo->prevEp) < 0) return -1;
if (tEncodeSEpSet(pEncoder, &pInfo->newEp) < 0) return -1;
}
// todo this new attribute will be result in being incompatible with previous version
if (tEncodeI32(pEncoder, pMsg->transId) < 0) return -1;
tEndEncode(pEncoder);
return pEncoder->pos;
}
int32_t tDecodeStreamTaskUpdateMsg(SDecoder* pDecoder, SStreamTaskNodeUpdateMsg* pMsg) {
if (tStartDecode(pDecoder) < 0) return -1;
if (tDecodeI64(pDecoder, &pMsg->streamId) < 0) return -1;
if (tDecodeI32(pDecoder, &pMsg->taskId) < 0) return -1;
int32_t size = 0;
if (tDecodeI32(pDecoder, &size) < 0) return -1;
pMsg->pNodeList = taosArrayInit(size, sizeof(SNodeUpdateInfo));
for (int32_t i = 0; i < size; ++i) {
SNodeUpdateInfo info = {0};
if (tDecodeI32(pDecoder, &info.nodeId) < 0) return -1;
if (tDecodeSEpSet(pDecoder, &info.prevEp) < 0) return -1;
if (tDecodeSEpSet(pDecoder, &info.newEp) < 0) return -1;
taosArrayPush(pMsg->pNodeList, &info);
}
if (tDecodeI32(pDecoder, &pMsg->transId) < 0) return -1;
tEndDecode(pDecoder);
return 0;
}
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