refactor(tq): do some internal refactor.
This commit is contained in:
Haojun Liao
parent
aae2758863
commit
f083697dba
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@ -182,6 +182,7 @@ int32_t tqDoRestoreSourceStreamTasks(STQ* pTq);
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void createStreamTaskOffsetKey(char* dst, uint64_t streamId, uint32_t taskId);
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void createStreamTaskOffsetKey(char* dst, uint64_t streamId, uint32_t taskId);
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int32_t tqAddInputBlockNLaunchTask(SStreamTask* pTask, SStreamQueueItem* pQueueItem, int64_t ver);
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int32_t tqAddInputBlockNLaunchTask(SStreamTask* pTask, SStreamQueueItem* pQueueItem, int64_t ver);
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int32_t launchTaskForWalBlock(SStreamTask* pTask, SFetchRet* pRet, STqOffset* pOffset);
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int32_t launchTaskForWalBlock(SStreamTask* pTask, SFetchRet* pRet, STqOffset* pOffset);
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int32_t tqExtractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest, SRpcMsg* pMsg);
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void doSaveTaskOffset(STqOffsetStore* pOffsetStore, const char* pKey, int64_t ver);
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void doSaveTaskOffset(STqOffsetStore* pOffsetStore, const char* pKey, int64_t ver);
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void saveOffsetForAllTasks(STQ* pTq, int64_t ver);
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void saveOffsetForAllTasks(STQ* pTq, int64_t ver);
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@ -15,7 +15,6 @@
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#include "tq.h"
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#include "tq.h"
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#define IS_OFFSET_RESET_TYPE(_t) ((_t) < 0)
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#define ALL_STREAM_TASKS_ID (-1)
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#define ALL_STREAM_TASKS_ID (-1)
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int32_t tqInit() {
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int32_t tqInit() {
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@ -143,44 +142,6 @@ void tqClose(STQ* pTq) {
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taosMemoryFree(pTq);
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taosMemoryFree(pTq);
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}
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}
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int32_t tqSendMetaPollRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqMetaRsp* pRsp) {
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int32_t len = 0;
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int32_t code = 0;
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tEncodeSize(tEncodeSMqMetaRsp, pRsp, len, code);
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if (code < 0) {
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return -1;
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}
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int32_t tlen = sizeof(SMqRspHead) + len;
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void* buf = rpcMallocCont(tlen);
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if (buf == NULL) {
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return -1;
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}
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((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_META_RSP;
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((SMqRspHead*)buf)->epoch = pReq->epoch;
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((SMqRspHead*)buf)->consumerId = pReq->consumerId;
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void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
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SEncoder encoder = {0};
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tEncoderInit(&encoder, abuf, len);
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tEncodeSMqMetaRsp(&encoder, pRsp);
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tEncoderClear(&encoder);
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SRpcMsg resp = {
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.info = pMsg->info,
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.pCont = buf,
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.contLen = tlen,
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.code = 0,
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};
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tmsgSendRsp(&resp);
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tqDebug("vgId:%d, from consumer:0x%" PRIx64 " (epoch %d) send rsp, res msg type %d, offset type:%d",
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TD_VID(pTq->pVnode), pReq->consumerId, pReq->epoch, pRsp->resMsgType, pRsp->rspOffset.type);
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return 0;
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}
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static int32_t doSendDataRsp(const SRpcHandleInfo* pRpcHandleInfo, const SMqDataRsp* pRsp, int32_t epoch,
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static int32_t doSendDataRsp(const SRpcHandleInfo* pRpcHandleInfo, const SMqDataRsp* pRsp, int32_t epoch,
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int64_t consumerId, int32_t type) {
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int64_t consumerId, int32_t type) {
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int32_t len = 0;
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int32_t len = 0;
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@ -330,311 +291,6 @@ int32_t tqCheckColModifiable(STQ* pTq, int64_t tbUid, int32_t colId) {
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return 0;
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return 0;
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}
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}
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static int32_t tqInitDataRsp(SMqDataRsp* pRsp, const SMqPollReq* pReq, int8_t subType) {
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pRsp->reqOffset = pReq->reqOffset;
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pRsp->blockData = taosArrayInit(0, sizeof(void*));
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pRsp->blockDataLen = taosArrayInit(0, sizeof(int32_t));
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if (pRsp->blockData == NULL || pRsp->blockDataLen == NULL) {
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return -1;
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}
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pRsp->withTbName = 0;
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pRsp->withSchema = false;
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return 0;
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}
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static int32_t tqInitTaosxRsp(STaosxRsp* pRsp, const SMqPollReq* pReq) {
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pRsp->reqOffset = pReq->reqOffset;
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pRsp->withTbName = 1;
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pRsp->withSchema = 1;
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pRsp->blockData = taosArrayInit(0, sizeof(void*));
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pRsp->blockDataLen = taosArrayInit(0, sizeof(int32_t));
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pRsp->blockTbName = taosArrayInit(0, sizeof(void*));
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pRsp->blockSchema = taosArrayInit(0, sizeof(void*));
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if (pRsp->blockData == NULL || pRsp->blockDataLen == NULL || pRsp->blockTbName == NULL || pRsp->blockSchema == NULL) {
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return -1;
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}
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return 0;
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}
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static int32_t extractResetOffsetVal(STqOffsetVal* pOffsetVal, STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest,
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SRpcMsg* pMsg, bool* pBlockReturned) {
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uint64_t consumerId = pRequest->consumerId;
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STqOffsetVal reqOffset = pRequest->reqOffset;
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STqOffset* pOffset = tqOffsetRead(pTq->pOffsetStore, pRequest->subKey);
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int32_t vgId = TD_VID(pTq->pVnode);
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*pBlockReturned = false;
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// In this vnode, data has been polled by consumer for this topic, so let's continue from the last offset value.
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if (pOffset != NULL) {
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*pOffsetVal = pOffset->val;
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char formatBuf[80];
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tFormatOffset(formatBuf, 80, pOffsetVal);
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tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, existed offset found, offset reset to %s and continue. reqId:0x%"PRIx64,
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consumerId, pHandle->subKey, vgId, formatBuf, pRequest->reqId);
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return 0;
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} else {
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// no poll occurs in this vnode for this topic, let's seek to the right offset value.
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if (reqOffset.type == TMQ_OFFSET__RESET_EARLIEAST) {
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if (pRequest->useSnapshot) {
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tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey:%s, vgId:%d, (earliest) set offset to be snapshot",
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consumerId, pHandle->subKey, vgId);
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if (pHandle->fetchMeta) {
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tqOffsetResetToMeta(pOffsetVal, 0);
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} else {
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tqOffsetResetToData(pOffsetVal, 0, 0);
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}
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} else {
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pHandle->pRef = walRefFirstVer(pTq->pVnode->pWal, pHandle->pRef);
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if (pHandle->pRef == NULL) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return -1;
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}
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// offset set to previous version when init
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tqOffsetResetToLog(pOffsetVal, pHandle->pRef->refVer - 1);
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}
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} else if (reqOffset.type == TMQ_OFFSET__RESET_LATEST) {
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if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
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SMqDataRsp dataRsp = {0};
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tqInitDataRsp(&dataRsp, pRequest, pHandle->execHandle.subType);
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tqOffsetResetToLog(&dataRsp.rspOffset, walGetLastVer(pTq->pVnode->pWal));
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tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, (latest) offset reset to %" PRId64, consumerId,
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pHandle->subKey, vgId, dataRsp.rspOffset.version);
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int32_t code = tqSendDataRsp(pTq, pMsg, pRequest, &dataRsp, TMQ_MSG_TYPE__POLL_RSP);
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tDeleteSMqDataRsp(&dataRsp);
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*pBlockReturned = true;
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return code;
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} else {
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STaosxRsp taosxRsp = {0};
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tqInitTaosxRsp(&taosxRsp, pRequest);
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tqOffsetResetToLog(&taosxRsp.rspOffset, walGetLastVer(pTq->pVnode->pWal));
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int32_t code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
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tDeleteSTaosxRsp(&taosxRsp);
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*pBlockReturned = true;
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return code;
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}
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} else if (reqOffset.type == TMQ_OFFSET__RESET_NONE) {
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tqError("tmq poll: subkey:%s, no offset committed for consumer:0x%" PRIx64 " in vg %d, subkey %s, reset none failed",
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pHandle->subKey, consumerId, vgId, pRequest->subKey);
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terrno = TSDB_CODE_TQ_NO_COMMITTED_OFFSET;
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return -1;
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}
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}
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return 0;
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}
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static int32_t extractDataAndRspForNormalSubscribe(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest,
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SRpcMsg* pMsg, STqOffsetVal* pOffset) {
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uint64_t consumerId = pRequest->consumerId;
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int32_t vgId = TD_VID(pTq->pVnode);
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SMqDataRsp dataRsp = {0};
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tqInitDataRsp(&dataRsp, pRequest, pHandle->execHandle.subType);
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// lock
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taosWLockLatch(&pTq->lock);
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qSetTaskId(pHandle->execHandle.task, consumerId, pRequest->reqId);
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int code = tqScanData(pTq, pHandle, &dataRsp, pOffset);
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if(code != 0) {
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goto end;
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}
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// till now, all data has been transferred to consumer, new data needs to push client once arrived.
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if (dataRsp.blockNum == 0 && dataRsp.reqOffset.type == TMQ_OFFSET__LOG &&
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dataRsp.reqOffset.version == dataRsp.rspOffset.version && pHandle->consumerId == pRequest->consumerId) {
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code = tqRegisterPushHandle(pTq, pHandle, pRequest, pMsg, &dataRsp, TMQ_MSG_TYPE__POLL_RSP);
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taosWUnLockLatch(&pTq->lock);
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return code;
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}
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code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&dataRsp, TMQ_MSG_TYPE__POLL_RSP);
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// NOTE: this pHandle->consumerId may have been changed already.
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end:
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{
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char buf[80] = {0};
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tFormatOffset(buf, 80, &dataRsp.rspOffset);
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tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, rsp block:%d, rsp offset type:%s, reqId:0x%" PRIx64 " code:%d",
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consumerId, pHandle->subKey, vgId, dataRsp.blockNum, buf, pRequest->reqId, code);
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taosWUnLockLatch(&pTq->lock);
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tDeleteSMqDataRsp(&dataRsp);
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}
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return code;
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}
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static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest, SRpcMsg* pMsg, STqOffsetVal *offset) {
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int code = 0;
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int32_t vgId = TD_VID(pTq->pVnode);
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SWalCkHead* pCkHead = NULL;
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SMqMetaRsp metaRsp = {0};
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STaosxRsp taosxRsp = {0};
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tqInitTaosxRsp(&taosxRsp, pRequest);
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if (offset->type != TMQ_OFFSET__LOG) {
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if (tqScanTaosx(pTq, pHandle, &taosxRsp, &metaRsp, offset) < 0) {
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return -1;
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}
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if (metaRsp.metaRspLen > 0) {
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code = tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp);
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tqDebug("tmq poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send meta offset type:%d,uid:%" PRId64 ",ts:%" PRId64,
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pRequest->consumerId, pHandle->subKey, vgId, metaRsp.rspOffset.type, metaRsp.rspOffset.uid, metaRsp.rspOffset.ts);
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taosMemoryFree(metaRsp.metaRsp);
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tDeleteSTaosxRsp(&taosxRsp);
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return code;
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}
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tqDebug("taosx poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send data blockNum:%d, offset type:%d,uid:%" PRId64
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",ts:%" PRId64,pRequest->consumerId, pHandle->subKey, vgId, taosxRsp.blockNum, taosxRsp.rspOffset.type, taosxRsp.rspOffset.uid,taosxRsp.rspOffset.ts);
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if (taosxRsp.blockNum > 0) {
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code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
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tDeleteSTaosxRsp(&taosxRsp);
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return code;
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}else {
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*offset = taosxRsp.rspOffset;
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}
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}
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if (offset->type == TMQ_OFFSET__LOG) {
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int64_t fetchVer = offset->version + 1;
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pCkHead = taosMemoryMalloc(sizeof(SWalCkHead) + 2048);
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if (pCkHead == NULL) {
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tDeleteSTaosxRsp(&taosxRsp);
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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return -1;
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}
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walSetReaderCapacity(pHandle->pWalReader, 2048);
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int totalRows = 0;
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while (1) {
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int32_t savedEpoch = atomic_load_32(&pHandle->epoch);
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if (savedEpoch > pRequest->epoch) {
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tqWarn("tmq poll: consumer:0x%" PRIx64 " (epoch %d), subkey:%s vgId:%d offset %" PRId64
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", found new consumer epoch %d, discard req epoch %d", pRequest->consumerId, pRequest->epoch, pHandle->subKey, vgId, fetchVer, savedEpoch, pRequest->epoch);
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break;
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}
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if (tqFetchLog(pTq, pHandle, &fetchVer, &pCkHead, pRequest->reqId) < 0) {
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tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
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code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
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tDeleteSTaosxRsp(&taosxRsp);
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taosMemoryFreeClear(pCkHead);
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return code;
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}
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SWalCont* pHead = &pCkHead->head;
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tqDebug("tmq poll: consumer:0x%" PRIx64 " (epoch %d) iter log, vgId:%d offset %" PRId64 " msgType %d", pRequest->consumerId,
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pRequest->epoch, vgId, fetchVer, pHead->msgType);
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// process meta
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if (pHead->msgType != TDMT_VND_SUBMIT) {
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if(totalRows > 0) {
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tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer - 1);
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code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
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tDeleteSTaosxRsp(&taosxRsp);
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taosMemoryFreeClear(pCkHead);
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return code;
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}
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tqDebug("fetch meta msg, ver:%" PRId64 ", type:%s", pHead->version, TMSG_INFO(pHead->msgType));
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tqOffsetResetToLog(&metaRsp.rspOffset, fetchVer);
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metaRsp.resMsgType = pHead->msgType;
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metaRsp.metaRspLen = pHead->bodyLen;
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metaRsp.metaRsp = pHead->body;
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if (tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp) < 0) {
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code = -1;
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taosMemoryFreeClear(pCkHead);
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tDeleteSTaosxRsp(&taosxRsp);
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return code;
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}
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code = 0;
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|
||||||
taosMemoryFreeClear(pCkHead);
|
|
||||||
tDeleteSTaosxRsp(&taosxRsp);
|
|
||||||
return code;
|
|
||||||
}
|
|
||||||
|
|
||||||
// process data
|
|
||||||
SPackedData submit = {
|
|
||||||
.msgStr = POINTER_SHIFT(pHead->body, sizeof(SSubmitReq2Msg)),
|
|
||||||
.msgLen = pHead->bodyLen - sizeof(SSubmitReq2Msg),
|
|
||||||
.ver = pHead->version,
|
|
||||||
};
|
|
||||||
|
|
||||||
if (tqTaosxScanLog(pTq, pHandle, submit, &taosxRsp, &totalRows) < 0) {
|
|
||||||
tqError("tmq poll: tqTaosxScanLog error %" PRId64 ", in vgId:%d, subkey %s", pRequest->consumerId, vgId,
|
|
||||||
pRequest->subKey);
|
|
||||||
taosMemoryFreeClear(pCkHead);
|
|
||||||
tDeleteSTaosxRsp(&taosxRsp);
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (totalRows >= 4096 || taosxRsp.createTableNum > 0) {
|
|
||||||
tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
|
|
||||||
code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
|
|
||||||
tDeleteSTaosxRsp(&taosxRsp);
|
|
||||||
taosMemoryFreeClear(pCkHead);
|
|
||||||
return code;
|
|
||||||
} else {
|
|
||||||
fetchVer++;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
tDeleteSTaosxRsp(&taosxRsp);
|
|
||||||
taosMemoryFreeClear(pCkHead);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int32_t doPollDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest, SRpcMsg* pMsg) {
|
|
||||||
int32_t code = -1;
|
|
||||||
STqOffsetVal offset = {0};
|
|
||||||
STqOffsetVal reqOffset = pRequest->reqOffset;
|
|
||||||
|
|
||||||
// 1. reset the offset if needed
|
|
||||||
if (IS_OFFSET_RESET_TYPE(reqOffset.type)) {
|
|
||||||
// handle the reset offset cases, according to the consumer's choice.
|
|
||||||
bool blockReturned = false;
|
|
||||||
code = extractResetOffsetVal(&offset, pTq, pHandle, pRequest, pMsg, &blockReturned);
|
|
||||||
if (code != 0) {
|
|
||||||
return code;
|
|
||||||
}
|
|
||||||
|
|
||||||
// empty block returned, quit
|
|
||||||
if (blockReturned) {
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
} else { // use the consumer specified offset
|
|
||||||
// the offset value can not be monotonious increase??
|
|
||||||
offset = reqOffset;
|
|
||||||
}
|
|
||||||
|
|
||||||
// this is a normal subscribe requirement
|
|
||||||
if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
|
|
||||||
return extractDataAndRspForNormalSubscribe(pTq, pHandle, pRequest, pMsg, &offset);
|
|
||||||
}
|
|
||||||
|
|
||||||
// todo handle the case where re-balance occurs.
|
|
||||||
// for taosx
|
|
||||||
return extractDataAndRspForDbStbSubscribe(pTq, pHandle, pRequest, pMsg, &offset);
|
|
||||||
}
|
|
||||||
|
|
||||||
int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
|
int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
|
||||||
SMqPollReq req = {0};
|
SMqPollReq req = {0};
|
||||||
if (tDeserializeSMqPollReq(pMsg->pCont, pMsg->contLen, &req) < 0) {
|
if (tDeserializeSMqPollReq(pMsg->pCont, pMsg->contLen, &req) < 0) {
|
||||||
|
|
@ -681,7 +337,7 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg) {
|
||||||
tqDebug("tmq poll: consumer:0x%" PRIx64 " (epoch %d), subkey %s, recv poll req vgId:%d, req:%s, reqId:0x%" PRIx64,
|
tqDebug("tmq poll: consumer:0x%" PRIx64 " (epoch %d), subkey %s, recv poll req vgId:%d, req:%s, reqId:0x%" PRIx64,
|
||||||
consumerId, req.epoch, pHandle->subKey, vgId, buf, req.reqId);
|
consumerId, req.epoch, pHandle->subKey, vgId, buf, req.reqId);
|
||||||
|
|
||||||
return doPollDataForMq(pTq, pHandle, &req, pMsg);
|
return tqExtractDataForMq(pTq, pHandle, &req, pMsg);
|
||||||
}
|
}
|
||||||
|
|
||||||
int32_t tqProcessDeleteSubReq(STQ* pTq, int64_t sversion, char* msg, int32_t msgLen) {
|
int32_t tqProcessDeleteSubReq(STQ* pTq, int64_t sversion, char* msg, int32_t msgLen) {
|
||||||
|
|
|
||||||
|
|
@ -15,6 +15,10 @@
|
||||||
|
|
||||||
#include "tq.h"
|
#include "tq.h"
|
||||||
|
|
||||||
|
#define IS_OFFSET_RESET_TYPE(_t) ((_t) < 0)
|
||||||
|
|
||||||
|
static int32_t tqSendMetaPollRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqMetaRsp* pRsp);
|
||||||
|
|
||||||
// stream_task:stream_id:task_id
|
// stream_task:stream_id:task_id
|
||||||
void createStreamTaskOffsetKey(char* dst, uint64_t streamId, uint32_t taskId) {
|
void createStreamTaskOffsetKey(char* dst, uint64_t streamId, uint32_t taskId) {
|
||||||
int32_t n = 12;
|
int32_t n = 12;
|
||||||
|
|
@ -142,3 +146,345 @@ void doSaveTaskOffset(STqOffsetStore* pOffsetStore, const char* pKey, int64_t ve
|
||||||
tqOffsetWrite(pOffsetStore, &offset);
|
tqOffsetWrite(pOffsetStore, &offset);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static int32_t tqInitDataRsp(SMqDataRsp* pRsp, const SMqPollReq* pReq, int8_t subType) {
|
||||||
|
pRsp->reqOffset = pReq->reqOffset;
|
||||||
|
|
||||||
|
pRsp->blockData = taosArrayInit(0, sizeof(void*));
|
||||||
|
pRsp->blockDataLen = taosArrayInit(0, sizeof(int32_t));
|
||||||
|
|
||||||
|
if (pRsp->blockData == NULL || pRsp->blockDataLen == NULL) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
pRsp->withTbName = 0;
|
||||||
|
pRsp->withSchema = false;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int32_t tqInitTaosxRsp(STaosxRsp* pRsp, const SMqPollReq* pReq) {
|
||||||
|
pRsp->reqOffset = pReq->reqOffset;
|
||||||
|
|
||||||
|
pRsp->withTbName = 1;
|
||||||
|
pRsp->withSchema = 1;
|
||||||
|
pRsp->blockData = taosArrayInit(0, sizeof(void*));
|
||||||
|
pRsp->blockDataLen = taosArrayInit(0, sizeof(int32_t));
|
||||||
|
pRsp->blockTbName = taosArrayInit(0, sizeof(void*));
|
||||||
|
pRsp->blockSchema = taosArrayInit(0, sizeof(void*));
|
||||||
|
|
||||||
|
if (pRsp->blockData == NULL || pRsp->blockDataLen == NULL || pRsp->blockTbName == NULL || pRsp->blockSchema == NULL) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int32_t extractResetOffsetVal(STqOffsetVal* pOffsetVal, STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest,
|
||||||
|
SRpcMsg* pMsg, bool* pBlockReturned) {
|
||||||
|
uint64_t consumerId = pRequest->consumerId;
|
||||||
|
STqOffsetVal reqOffset = pRequest->reqOffset;
|
||||||
|
STqOffset* pOffset = tqOffsetRead(pTq->pOffsetStore, pRequest->subKey);
|
||||||
|
int32_t vgId = TD_VID(pTq->pVnode);
|
||||||
|
|
||||||
|
*pBlockReturned = false;
|
||||||
|
|
||||||
|
// In this vnode, data has been polled by consumer for this topic, so let's continue from the last offset value.
|
||||||
|
if (pOffset != NULL) {
|
||||||
|
*pOffsetVal = pOffset->val;
|
||||||
|
|
||||||
|
char formatBuf[80];
|
||||||
|
tFormatOffset(formatBuf, 80, pOffsetVal);
|
||||||
|
tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, existed offset found, offset reset to %s and continue. reqId:0x%"PRIx64,
|
||||||
|
consumerId, pHandle->subKey, vgId, formatBuf, pRequest->reqId);
|
||||||
|
return 0;
|
||||||
|
} else {
|
||||||
|
// no poll occurs in this vnode for this topic, let's seek to the right offset value.
|
||||||
|
if (reqOffset.type == TMQ_OFFSET__RESET_EARLIEAST) {
|
||||||
|
if (pRequest->useSnapshot) {
|
||||||
|
tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey:%s, vgId:%d, (earliest) set offset to be snapshot",
|
||||||
|
consumerId, pHandle->subKey, vgId);
|
||||||
|
|
||||||
|
if (pHandle->fetchMeta) {
|
||||||
|
tqOffsetResetToMeta(pOffsetVal, 0);
|
||||||
|
} else {
|
||||||
|
tqOffsetResetToData(pOffsetVal, 0, 0);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
pHandle->pRef = walRefFirstVer(pTq->pVnode->pWal, pHandle->pRef);
|
||||||
|
if (pHandle->pRef == NULL) {
|
||||||
|
terrno = TSDB_CODE_OUT_OF_MEMORY;
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// offset set to previous version when init
|
||||||
|
tqOffsetResetToLog(pOffsetVal, pHandle->pRef->refVer - 1);
|
||||||
|
}
|
||||||
|
} else if (reqOffset.type == TMQ_OFFSET__RESET_LATEST) {
|
||||||
|
if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
|
||||||
|
SMqDataRsp dataRsp = {0};
|
||||||
|
tqInitDataRsp(&dataRsp, pRequest, pHandle->execHandle.subType);
|
||||||
|
|
||||||
|
tqOffsetResetToLog(&dataRsp.rspOffset, walGetLastVer(pTq->pVnode->pWal));
|
||||||
|
tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, (latest) offset reset to %" PRId64, consumerId,
|
||||||
|
pHandle->subKey, vgId, dataRsp.rspOffset.version);
|
||||||
|
int32_t code = tqSendDataRsp(pTq, pMsg, pRequest, &dataRsp, TMQ_MSG_TYPE__POLL_RSP);
|
||||||
|
tDeleteSMqDataRsp(&dataRsp);
|
||||||
|
|
||||||
|
*pBlockReturned = true;
|
||||||
|
return code;
|
||||||
|
} else {
|
||||||
|
STaosxRsp taosxRsp = {0};
|
||||||
|
tqInitTaosxRsp(&taosxRsp, pRequest);
|
||||||
|
tqOffsetResetToLog(&taosxRsp.rspOffset, walGetLastVer(pTq->pVnode->pWal));
|
||||||
|
int32_t code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
|
||||||
|
*pBlockReturned = true;
|
||||||
|
return code;
|
||||||
|
}
|
||||||
|
} else if (reqOffset.type == TMQ_OFFSET__RESET_NONE) {
|
||||||
|
tqError("tmq poll: subkey:%s, no offset committed for consumer:0x%" PRIx64 " in vg %d, subkey %s, reset none failed",
|
||||||
|
pHandle->subKey, consumerId, vgId, pRequest->subKey);
|
||||||
|
terrno = TSDB_CODE_TQ_NO_COMMITTED_OFFSET;
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int32_t extractDataAndRspForNormalSubscribe(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest,
|
||||||
|
SRpcMsg* pMsg, STqOffsetVal* pOffset) {
|
||||||
|
uint64_t consumerId = pRequest->consumerId;
|
||||||
|
int32_t vgId = TD_VID(pTq->pVnode);
|
||||||
|
|
||||||
|
SMqDataRsp dataRsp = {0};
|
||||||
|
tqInitDataRsp(&dataRsp, pRequest, pHandle->execHandle.subType);
|
||||||
|
|
||||||
|
// lock
|
||||||
|
taosWLockLatch(&pTq->lock);
|
||||||
|
|
||||||
|
qSetTaskId(pHandle->execHandle.task, consumerId, pRequest->reqId);
|
||||||
|
int code = tqScanData(pTq, pHandle, &dataRsp, pOffset);
|
||||||
|
if(code != 0) {
|
||||||
|
goto end;
|
||||||
|
}
|
||||||
|
|
||||||
|
// till now, all data has been transferred to consumer, new data needs to push client once arrived.
|
||||||
|
if (dataRsp.blockNum == 0 && dataRsp.reqOffset.type == TMQ_OFFSET__LOG &&
|
||||||
|
dataRsp.reqOffset.version == dataRsp.rspOffset.version && pHandle->consumerId == pRequest->consumerId) {
|
||||||
|
code = tqRegisterPushHandle(pTq, pHandle, pRequest, pMsg, &dataRsp, TMQ_MSG_TYPE__POLL_RSP);
|
||||||
|
taosWUnLockLatch(&pTq->lock);
|
||||||
|
return code;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&dataRsp, TMQ_MSG_TYPE__POLL_RSP);
|
||||||
|
|
||||||
|
// NOTE: this pHandle->consumerId may have been changed already.
|
||||||
|
|
||||||
|
end:
|
||||||
|
{
|
||||||
|
char buf[80] = {0};
|
||||||
|
tFormatOffset(buf, 80, &dataRsp.rspOffset);
|
||||||
|
tqDebug("tmq poll: consumer:0x%" PRIx64 ", subkey %s, vgId:%d, rsp block:%d, rsp offset type:%s, reqId:0x%" PRIx64 " code:%d",
|
||||||
|
consumerId, pHandle->subKey, vgId, dataRsp.blockNum, buf, pRequest->reqId, code);
|
||||||
|
taosWUnLockLatch(&pTq->lock);
|
||||||
|
tDeleteSMqDataRsp(&dataRsp);
|
||||||
|
}
|
||||||
|
return code;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest, SRpcMsg* pMsg, STqOffsetVal *offset) {
|
||||||
|
int code = 0;
|
||||||
|
int32_t vgId = TD_VID(pTq->pVnode);
|
||||||
|
SWalCkHead* pCkHead = NULL;
|
||||||
|
SMqMetaRsp metaRsp = {0};
|
||||||
|
STaosxRsp taosxRsp = {0};
|
||||||
|
tqInitTaosxRsp(&taosxRsp, pRequest);
|
||||||
|
|
||||||
|
if (offset->type != TMQ_OFFSET__LOG) {
|
||||||
|
if (tqScanTaosx(pTq, pHandle, &taosxRsp, &metaRsp, offset) < 0) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (metaRsp.metaRspLen > 0) {
|
||||||
|
code = tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp);
|
||||||
|
tqDebug("tmq poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send meta offset type:%d,uid:%" PRId64 ",ts:%" PRId64,
|
||||||
|
pRequest->consumerId, pHandle->subKey, vgId, metaRsp.rspOffset.type, metaRsp.rspOffset.uid, metaRsp.rspOffset.ts);
|
||||||
|
taosMemoryFree(metaRsp.metaRsp);
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
return code;
|
||||||
|
}
|
||||||
|
|
||||||
|
tqDebug("taosx poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send data blockNum:%d, offset type:%d,uid:%" PRId64
|
||||||
|
",ts:%" PRId64,pRequest->consumerId, pHandle->subKey, vgId, taosxRsp.blockNum, taosxRsp.rspOffset.type, taosxRsp.rspOffset.uid,taosxRsp.rspOffset.ts);
|
||||||
|
if (taosxRsp.blockNum > 0) {
|
||||||
|
code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
return code;
|
||||||
|
}else {
|
||||||
|
*offset = taosxRsp.rspOffset;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
if (offset->type == TMQ_OFFSET__LOG) {
|
||||||
|
int64_t fetchVer = offset->version + 1;
|
||||||
|
pCkHead = taosMemoryMalloc(sizeof(SWalCkHead) + 2048);
|
||||||
|
if (pCkHead == NULL) {
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
terrno = TSDB_CODE_OUT_OF_MEMORY;
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
walSetReaderCapacity(pHandle->pWalReader, 2048);
|
||||||
|
int totalRows = 0;
|
||||||
|
while (1) {
|
||||||
|
int32_t savedEpoch = atomic_load_32(&pHandle->epoch);
|
||||||
|
if (savedEpoch > pRequest->epoch) {
|
||||||
|
tqWarn("tmq poll: consumer:0x%" PRIx64 " (epoch %d), subkey:%s vgId:%d offset %" PRId64
|
||||||
|
", found new consumer epoch %d, discard req epoch %d", pRequest->consumerId, pRequest->epoch, pHandle->subKey, vgId, fetchVer, savedEpoch, pRequest->epoch);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (tqFetchLog(pTq, pHandle, &fetchVer, &pCkHead, pRequest->reqId) < 0) {
|
||||||
|
tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
|
||||||
|
code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
taosMemoryFreeClear(pCkHead);
|
||||||
|
return code;
|
||||||
|
}
|
||||||
|
|
||||||
|
SWalCont* pHead = &pCkHead->head;
|
||||||
|
tqDebug("tmq poll: consumer:0x%" PRIx64 " (epoch %d) iter log, vgId:%d offset %" PRId64 " msgType %d", pRequest->consumerId,
|
||||||
|
pRequest->epoch, vgId, fetchVer, pHead->msgType);
|
||||||
|
|
||||||
|
// process meta
|
||||||
|
if (pHead->msgType != TDMT_VND_SUBMIT) {
|
||||||
|
if(totalRows > 0) {
|
||||||
|
tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer - 1);
|
||||||
|
code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
taosMemoryFreeClear(pCkHead);
|
||||||
|
return code;
|
||||||
|
}
|
||||||
|
|
||||||
|
tqDebug("fetch meta msg, ver:%" PRId64 ", type:%s", pHead->version, TMSG_INFO(pHead->msgType));
|
||||||
|
tqOffsetResetToLog(&metaRsp.rspOffset, fetchVer);
|
||||||
|
metaRsp.resMsgType = pHead->msgType;
|
||||||
|
metaRsp.metaRspLen = pHead->bodyLen;
|
||||||
|
metaRsp.metaRsp = pHead->body;
|
||||||
|
if (tqSendMetaPollRsp(pTq, pMsg, pRequest, &metaRsp) < 0) {
|
||||||
|
code = -1;
|
||||||
|
taosMemoryFreeClear(pCkHead);
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
return code;
|
||||||
|
}
|
||||||
|
code = 0;
|
||||||
|
taosMemoryFreeClear(pCkHead);
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
return code;
|
||||||
|
}
|
||||||
|
|
||||||
|
// process data
|
||||||
|
SPackedData submit = {
|
||||||
|
.msgStr = POINTER_SHIFT(pHead->body, sizeof(SSubmitReq2Msg)),
|
||||||
|
.msgLen = pHead->bodyLen - sizeof(SSubmitReq2Msg),
|
||||||
|
.ver = pHead->version,
|
||||||
|
};
|
||||||
|
|
||||||
|
if (tqTaosxScanLog(pTq, pHandle, submit, &taosxRsp, &totalRows) < 0) {
|
||||||
|
tqError("tmq poll: tqTaosxScanLog error %" PRId64 ", in vgId:%d, subkey %s", pRequest->consumerId, vgId,
|
||||||
|
pRequest->subKey);
|
||||||
|
taosMemoryFreeClear(pCkHead);
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (totalRows >= 4096 || taosxRsp.createTableNum > 0) {
|
||||||
|
tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
|
||||||
|
code = tqSendDataRsp(pTq, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__TAOSX_RSP);
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
taosMemoryFreeClear(pCkHead);
|
||||||
|
return code;
|
||||||
|
} else {
|
||||||
|
fetchVer++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
tDeleteSTaosxRsp(&taosxRsp);
|
||||||
|
taosMemoryFreeClear(pCkHead);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int32_t tqExtractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest, SRpcMsg* pMsg) {
|
||||||
|
int32_t code = -1;
|
||||||
|
STqOffsetVal offset = {0};
|
||||||
|
STqOffsetVal reqOffset = pRequest->reqOffset;
|
||||||
|
|
||||||
|
// 1. reset the offset if needed
|
||||||
|
if (IS_OFFSET_RESET_TYPE(reqOffset.type)) {
|
||||||
|
// handle the reset offset cases, according to the consumer's choice.
|
||||||
|
bool blockReturned = false;
|
||||||
|
code = extractResetOffsetVal(&offset, pTq, pHandle, pRequest, pMsg, &blockReturned);
|
||||||
|
if (code != 0) {
|
||||||
|
return code;
|
||||||
|
}
|
||||||
|
|
||||||
|
// empty block returned, quit
|
||||||
|
if (blockReturned) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
} else { // use the consumer specified offset
|
||||||
|
// the offset value can not be monotonious increase??
|
||||||
|
offset = reqOffset;
|
||||||
|
}
|
||||||
|
|
||||||
|
// this is a normal subscribe requirement
|
||||||
|
if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
|
||||||
|
return extractDataAndRspForNormalSubscribe(pTq, pHandle, pRequest, pMsg, &offset);
|
||||||
|
}
|
||||||
|
|
||||||
|
// todo handle the case where re-balance occurs.
|
||||||
|
// for taosx
|
||||||
|
return extractDataAndRspForDbStbSubscribe(pTq, pHandle, pRequest, pMsg, &offset);
|
||||||
|
}
|
||||||
|
|
||||||
|
int32_t tqSendMetaPollRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqMetaRsp* pRsp) {
|
||||||
|
int32_t len = 0;
|
||||||
|
int32_t code = 0;
|
||||||
|
tEncodeSize(tEncodeSMqMetaRsp, pRsp, len, code);
|
||||||
|
if (code < 0) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
int32_t tlen = sizeof(SMqRspHead) + len;
|
||||||
|
void* buf = rpcMallocCont(tlen);
|
||||||
|
if (buf == NULL) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_META_RSP;
|
||||||
|
((SMqRspHead*)buf)->epoch = pReq->epoch;
|
||||||
|
((SMqRspHead*)buf)->consumerId = pReq->consumerId;
|
||||||
|
|
||||||
|
void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
|
||||||
|
|
||||||
|
SEncoder encoder = {0};
|
||||||
|
tEncoderInit(&encoder, abuf, len);
|
||||||
|
tEncodeSMqMetaRsp(&encoder, pRsp);
|
||||||
|
tEncoderClear(&encoder);
|
||||||
|
|
||||||
|
SRpcMsg resp = {
|
||||||
|
.info = pMsg->info,
|
||||||
|
.pCont = buf,
|
||||||
|
.contLen = tlen,
|
||||||
|
.code = 0,
|
||||||
|
};
|
||||||
|
tmsgSendRsp(&resp);
|
||||||
|
|
||||||
|
tqDebug("vgId:%d, from consumer:0x%" PRIx64 " (epoch %d) send rsp, res msg type %d, offset type:%d",
|
||||||
|
TD_VID(pTq->pVnode), pReq->consumerId, pReq->epoch, pRsp->resMsgType, pRsp->rspOffset.type);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue