529 lines
18 KiB
C
529 lines
18 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "tq.h"
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static int32_t tqSendMetaPollRsp(STqHandle* pHandle, const SRpcMsg* pMsg, const SMqPollReq* pReq,
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const SMqMetaRsp* pRsp, int32_t vgId);
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int32_t tqInitDataRsp(SMqDataRsp* pRsp, STqOffsetVal pOffset) {
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pRsp->reqOffset = pOffset;
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pRsp->rspOffset = pOffset;
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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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void tqUpdateNodeStage(STQ* pTq, bool isLeader) {
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SSyncState state = syncGetState(pTq->pVnode->sync);
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streamMetaUpdateStageRole(pTq->pStreamMeta, state.term, isLeader);
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}
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static int32_t tqInitTaosxRsp(STaosxRsp* pRsp, STqOffsetVal pOffset) {
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pRsp->reqOffset = pOffset;
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pRsp->rspOffset = pOffset;
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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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if (pRsp->blockData != NULL) {
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pRsp->blockData = taosArrayDestroy(pRsp->blockData);
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}
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if (pRsp->blockDataLen != NULL) {
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pRsp->blockDataLen = taosArrayDestroy(pRsp->blockDataLen);
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}
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if (pRsp->blockTbName != NULL) {
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pRsp->blockTbName = taosArrayDestroy(pRsp->blockTbName);
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}
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if (pRsp->blockSchema != NULL) {
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pRsp->blockSchema = taosArrayDestroy(pRsp->blockSchema);
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}
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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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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[TSDB_OFFSET_LEN] = {0};
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tFormatOffset(formatBuf, TSDB_OFFSET_LEN, pOffsetVal);
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tqDebug("tmq poll: consumer:0x%" PRIx64
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", 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 (pRequest->reqOffset.type == TMQ_OFFSET__RESET_EARLIEST) {
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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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walRefFirstVer(pTq->pVnode->pWal, pHandle->pRef);
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tqOffsetResetToLog(pOffsetVal, pHandle->pRef->refVer);
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}
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} else if (pRequest->reqOffset.type == TMQ_OFFSET__RESET_LATEST) {
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walRefLastVer(pTq->pVnode->pWal, pHandle->pRef);
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SMqDataRsp dataRsp = {0};
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tqOffsetResetToLog(pOffsetVal, pHandle->pRef->refVer + 1);
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tqInitDataRsp(&dataRsp, *pOffsetVal);
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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(pHandle, pMsg, pRequest, &dataRsp, TMQ_MSG_TYPE__POLL_DATA_RSP, vgId);
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tDeleteMqDataRsp(&dataRsp);
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*pBlockReturned = true;
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return code;
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} else if (pRequest->reqOffset.type == TMQ_OFFSET__RESET_NONE) {
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tqError("tmq poll: subkey:%s, no offset committed for consumer:0x%" PRIx64
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" 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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terrno = 0;
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SMqDataRsp dataRsp = {0};
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tqInitDataRsp(&dataRsp, *pOffset);
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qSetTaskId(pHandle->execHandle.task, consumerId, pRequest->reqId);
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int code = tqScanData(pTq, pHandle, &dataRsp, pOffset, pRequest);
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if (code != 0 && terrno != TSDB_CODE_WAL_LOG_NOT_EXIST) {
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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 (terrno == TSDB_CODE_WAL_LOG_NOT_EXIST && dataRsp.blockNum == 0) {
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// lock
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taosWLockLatch(&pTq->lock);
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int64_t ver = walGetCommittedVer(pTq->pVnode->pWal);
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if (dataRsp.rspOffset.version > ver) { // check if there are data again to avoid lost data
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code = tqRegisterPushHandle(pTq, pHandle, pMsg);
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taosWUnLockLatch(&pTq->lock);
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goto end;
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}
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taosWUnLockLatch(&pTq->lock);
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}
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dataRsp.reqOffset = *pOffset; // reqOffset represents the current date offset, may be changed if wal not exists
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code = tqSendDataRsp(pHandle, pMsg, pRequest, (SMqDataRsp*)&dataRsp, TMQ_MSG_TYPE__POLL_DATA_RSP, vgId);
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end : {
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char buf[TSDB_OFFSET_LEN] = {0};
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tFormatOffset(buf, TSDB_OFFSET_LEN, &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
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" code:%d",
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consumerId, pHandle->subKey, vgId, dataRsp.blockNum, buf, pRequest->reqId, code);
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tDeleteMqDataRsp(&dataRsp);
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return code;
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}
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}
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static int32_t extractDataAndRspForDbStbSubscribe(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest,
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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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SMqMetaRsp metaRsp = {0};
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STaosxRsp taosxRsp = {0};
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tqInitTaosxRsp(&taosxRsp, *offset);
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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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code = -1;
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goto end;
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}
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if (metaRsp.metaRspLen > 0) {
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code = tqSendMetaPollRsp(pHandle, pMsg, pRequest, &metaRsp, vgId);
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tqDebug("tmq poll: consumer:0x%" PRIx64 " subkey:%s vgId:%d, send meta offset type:%d,uid:%" PRId64
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",ts:%" PRId64,
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pRequest->consumerId, pHandle->subKey, vgId, metaRsp.rspOffset.type, metaRsp.rspOffset.uid,
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metaRsp.rspOffset.ts);
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taosMemoryFree(metaRsp.metaRsp);
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goto end;
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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,
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pRequest->consumerId, pHandle->subKey, vgId, taosxRsp.blockNum, taosxRsp.rspOffset.type,
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taosxRsp.rspOffset.uid, taosxRsp.rspOffset.ts);
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if (taosxRsp.blockNum > 0) {
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code = tqSendDataRsp(pHandle, pMsg, pRequest, (SMqDataRsp*)&taosxRsp, TMQ_MSG_TYPE__POLL_DATA_RSP, vgId);
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goto end;
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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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walReaderVerifyOffset(pHandle->pWalReader, offset);
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int64_t fetchVer = offset->version;
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uint64_t st = taosGetTimestampMs();
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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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ASSERT(savedEpoch <= pRequest->epoch);
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if (tqFetchLog(pTq, pHandle, &fetchVer, pRequest->reqId) < 0) {
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tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer);
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code = tqSendDataRsp(
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pHandle, pMsg, pRequest, (SMqDataRsp*)&taosxRsp,
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taosxRsp.createTableNum > 0 ? TMQ_MSG_TYPE__POLL_DATA_META_RSP : TMQ_MSG_TYPE__POLL_DATA_RSP, vgId);
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goto end;
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}
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SWalCont* pHead = &pHandle->pWalReader->pHead->head;
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tqDebug("tmq poll: consumer:0x%" PRIx64 " (epoch %d) iter log, vgId:%d offset %" PRId64 " msgType %d",
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pRequest->consumerId, 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);
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code = tqSendDataRsp(
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pHandle, pMsg, pRequest, (SMqDataRsp*)&taosxRsp,
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taosxRsp.createTableNum > 0 ? TMQ_MSG_TYPE__POLL_DATA_META_RSP : TMQ_MSG_TYPE__POLL_DATA_RSP, vgId);
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goto end;
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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 + 1);
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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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code = tqSendMetaPollRsp(pHandle, pMsg, pRequest, &metaRsp, vgId);
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goto end;
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}
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// process data
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SPackedData submit = {
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.msgStr = POINTER_SHIFT(pHead->body, sizeof(SSubmitReq2Msg)),
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.msgLen = pHead->bodyLen - sizeof(SSubmitReq2Msg),
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.ver = pHead->version,
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};
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code = tqTaosxScanLog(pTq, pHandle, submit, &taosxRsp, &totalRows, pRequest->sourceExcluded);
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if (code < 0) {
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tqError("tmq poll: tqTaosxScanLog error %" PRId64 ", in vgId:%d, subkey %s", pRequest->consumerId, vgId,
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pRequest->subKey);
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goto end;
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}
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if (totalRows >= 4096 || (taosGetTimestampMs() - st > 1000)) {
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tqOffsetResetToLog(&taosxRsp.rspOffset, fetchVer + 1);
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code = tqSendDataRsp(
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pHandle, pMsg, pRequest, (SMqDataRsp*)&taosxRsp,
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taosxRsp.createTableNum > 0 ? TMQ_MSG_TYPE__POLL_DATA_META_RSP : TMQ_MSG_TYPE__POLL_DATA_RSP, vgId);
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goto end;
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} else {
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fetchVer++;
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}
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}
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}
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end:
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tDeleteSTaosxRsp(&taosxRsp);
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return code;
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}
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int32_t tqExtractDataForMq(STQ* pTq, STqHandle* pHandle, const SMqPollReq* pRequest, SRpcMsg* pMsg) {
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STqOffsetVal reqOffset = pRequest->reqOffset;
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// 1. reset the offset if needed
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if (IS_OFFSET_RESET_TYPE(pRequest->reqOffset.type)) {
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// handle the reset offset cases, according to the consumer's choice.
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bool blockReturned = false;
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int32_t code = extractResetOffsetVal(&reqOffset, pTq, pHandle, pRequest, pMsg, &blockReturned);
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if (code != 0) {
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return code;
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}
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// empty block returned, quit
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if (blockReturned) {
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return 0;
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}
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} else if (reqOffset.type == 0) { // use the consumer specified offset
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uError("req offset type is 0");
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return TSDB_CODE_TMQ_INVALID_MSG;
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}
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// this is a normal subscribe requirement
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if (pHandle->execHandle.subType == TOPIC_SUB_TYPE__COLUMN) {
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return extractDataAndRspForNormalSubscribe(pTq, pHandle, pRequest, pMsg, &reqOffset);
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} else {
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// for taosx
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return extractDataAndRspForDbStbSubscribe(pTq, pHandle, pRequest, pMsg, &reqOffset);
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}
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}
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static void initMqRspHead(SMqRspHead* pMsgHead, int32_t type, int32_t epoch, int64_t consumerId, int64_t sver,
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int64_t ever) {
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pMsgHead->consumerId = consumerId;
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pMsgHead->epoch = epoch;
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pMsgHead->mqMsgType = type;
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pMsgHead->walsver = sver;
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pMsgHead->walever = ever;
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}
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int32_t tqSendMetaPollRsp(STqHandle* pHandle, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqMetaRsp* pRsp,
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int32_t vgId) {
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int32_t len = 0;
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int32_t code = 0;
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tEncodeSize(tEncodeMqMetaRsp, 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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int64_t sver = 0, ever = 0;
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walReaderValidVersionRange(pHandle->execHandle.pTqReader->pWalReader, &sver, &ever);
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initMqRspHead(buf, TMQ_MSG_TYPE__POLL_META_RSP, pReq->epoch, pReq->consumerId, sver, ever);
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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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tEncodeMqMetaRsp(&encoder, pRsp);
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tEncoderClear(&encoder);
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SRpcMsg resp = {.info = pMsg->info, .pCont = buf, .contLen = tlen, .code = 0};
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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", vgId,
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pReq->consumerId, pReq->epoch, pRsp->resMsgType, pRsp->rspOffset.type);
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return 0;
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}
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int32_t tqDoSendDataRsp(const SRpcHandleInfo* pRpcHandleInfo, const SMqDataRsp* pRsp, int32_t epoch, int64_t consumerId,
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int32_t type, int64_t sver, int64_t ever) {
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int32_t len = 0;
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int32_t code = 0;
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if (type == TMQ_MSG_TYPE__POLL_DATA_RSP || type == TMQ_MSG_TYPE__WALINFO_RSP) {
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tEncodeSize(tEncodeMqDataRsp, pRsp, len, code);
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} else if (type == TMQ_MSG_TYPE__POLL_DATA_META_RSP) {
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tEncodeSize(tEncodeSTaosxRsp, (STaosxRsp*)pRsp, len, code);
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}
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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* pHead = (SMqRspHead*)buf;
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initMqRspHead(pHead, type, epoch, consumerId, sver, ever);
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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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if (type == TMQ_MSG_TYPE__POLL_DATA_RSP || type == TMQ_MSG_TYPE__WALINFO_RSP) {
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tEncodeMqDataRsp(&encoder, pRsp);
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} else if (type == TMQ_MSG_TYPE__POLL_DATA_META_RSP) {
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tEncodeSTaosxRsp(&encoder, (STaosxRsp*)pRsp);
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}
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tEncoderClear(&encoder);
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SRpcMsg rsp = {.info = *pRpcHandleInfo, .pCont = buf, .contLen = tlen, .code = 0};
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tmsgSendRsp(&rsp);
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return 0;
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}
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int32_t tqExtractDelDataBlock(const void* pData, int32_t len, int64_t ver, void** pRefBlock, int32_t type) {
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SDecoder* pCoder = &(SDecoder){0};
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SDeleteRes* pRes = &(SDeleteRes){0};
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*pRefBlock = NULL;
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pRes->uidList = taosArrayInit(0, sizeof(tb_uid_t));
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if (pRes->uidList == NULL) {
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return TSDB_CODE_OUT_OF_MEMORY;
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}
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tDecoderInit(pCoder, (uint8_t*)pData, len);
|
|
tDecodeDeleteRes(pCoder, pRes);
|
|
tDecoderClear(pCoder);
|
|
|
|
int32_t numOfTables = taosArrayGetSize(pRes->uidList);
|
|
if (numOfTables == 0 || pRes->affectedRows == 0) {
|
|
taosArrayDestroy(pRes->uidList);
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
SSDataBlock* pDelBlock = createSpecialDataBlock(STREAM_DELETE_DATA);
|
|
blockDataEnsureCapacity(pDelBlock, numOfTables);
|
|
pDelBlock->info.rows = numOfTables;
|
|
pDelBlock->info.version = ver;
|
|
|
|
for (int32_t i = 0; i < numOfTables; i++) {
|
|
// start key column
|
|
SColumnInfoData* pStartCol = taosArrayGet(pDelBlock->pDataBlock, START_TS_COLUMN_INDEX);
|
|
colDataSetVal(pStartCol, i, (const char*)&pRes->skey, false); // end key column
|
|
SColumnInfoData* pEndCol = taosArrayGet(pDelBlock->pDataBlock, END_TS_COLUMN_INDEX);
|
|
colDataSetVal(pEndCol, i, (const char*)&pRes->ekey, false);
|
|
// uid column
|
|
SColumnInfoData* pUidCol = taosArrayGet(pDelBlock->pDataBlock, UID_COLUMN_INDEX);
|
|
int64_t* pUid = taosArrayGet(pRes->uidList, i);
|
|
colDataSetVal(pUidCol, i, (const char*)pUid, false);
|
|
|
|
colDataSetNULL(taosArrayGet(pDelBlock->pDataBlock, GROUPID_COLUMN_INDEX), i);
|
|
colDataSetNULL(taosArrayGet(pDelBlock->pDataBlock, CALCULATE_START_TS_COLUMN_INDEX), i);
|
|
colDataSetNULL(taosArrayGet(pDelBlock->pDataBlock, CALCULATE_END_TS_COLUMN_INDEX), i);
|
|
}
|
|
|
|
taosArrayDestroy(pRes->uidList);
|
|
if (type == 0) {
|
|
*pRefBlock = taosAllocateQitem(sizeof(SStreamRefDataBlock), DEF_QITEM, 0);
|
|
if (*pRefBlock == NULL) {
|
|
blockDataCleanup(pDelBlock);
|
|
taosMemoryFree(pDelBlock);
|
|
return TSDB_CODE_OUT_OF_MEMORY;
|
|
}
|
|
|
|
((SStreamRefDataBlock*)(*pRefBlock))->type = STREAM_INPUT__REF_DATA_BLOCK;
|
|
((SStreamRefDataBlock*)(*pRefBlock))->pBlock = pDelBlock;
|
|
} else if (type == 1) {
|
|
*pRefBlock = pDelBlock;
|
|
} else {
|
|
ASSERTS(0, "unknown type:%d", type);
|
|
}
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int32_t tqGetStreamExecInfo(SVnode* pVnode, int64_t streamId, int64_t* pDelay, bool* fhFinished) {
|
|
SStreamMeta* pMeta = pVnode->pTq->pStreamMeta;
|
|
int32_t numOfTasks = taosArrayGetSize(pMeta->pTaskList);
|
|
int32_t code = TSDB_CODE_SUCCESS;
|
|
|
|
if (pDelay != NULL) {
|
|
*pDelay = 0;
|
|
}
|
|
|
|
*fhFinished = false;
|
|
|
|
if (numOfTasks <= 0) {
|
|
return code;
|
|
}
|
|
|
|
// extract the required source task for a given stream, identified by streamId
|
|
for (int32_t i = 0; i < numOfTasks; ++i) {
|
|
STaskId* pId = taosArrayGet(pMeta->pTaskList, i);
|
|
if (pId->streamId != streamId) {
|
|
continue;
|
|
}
|
|
|
|
SStreamTask** ppTask = taosHashGet(pMeta->pTasksMap, pId, sizeof(*pId));
|
|
if (ppTask == NULL) {
|
|
tqError("vgId:%d failed to acquire task:0x%" PRIx64 " in retrieving progress", pMeta->vgId, pId->taskId);
|
|
continue;
|
|
}
|
|
|
|
if ((*ppTask)->info.taskLevel != TASK_LEVEL__SOURCE) {
|
|
continue;
|
|
}
|
|
|
|
// here we get the required stream source task
|
|
SStreamTask* pTask = *ppTask;
|
|
*fhFinished = !HAS_RELATED_FILLHISTORY_TASK(pTask);
|
|
|
|
int64_t ver = walReaderGetCurrentVer(pTask->exec.pWalReader);
|
|
|
|
SVersionRange verRange = {0};
|
|
walReaderValidVersionRange(pTask->exec.pWalReader, &verRange.minVer, &verRange.maxVer);
|
|
|
|
SWalReader* pReader = walOpenReader(pTask->exec.pWalReader->pWal, NULL, 0);
|
|
if (pReader == NULL) {
|
|
tqError("failed to open wal reader to extract exec progress, vgId:%d", pMeta->vgId);
|
|
continue;
|
|
}
|
|
|
|
int64_t cur = 0;
|
|
int64_t latest = 0;
|
|
|
|
code = walFetchHead(pReader, ver);
|
|
if (code != TSDB_CODE_SUCCESS) {
|
|
cur = pReader->pHead->head.ingestTs;
|
|
}
|
|
|
|
code = walFetchHead(pReader, verRange.maxVer);
|
|
if (code != TSDB_CODE_SUCCESS) {
|
|
latest = pReader->pHead->head.ingestTs;
|
|
}
|
|
|
|
if (pDelay != NULL) { // delay in ms
|
|
*pDelay = (latest - cur) / 1000;
|
|
}
|
|
|
|
walCloseReader(pReader);
|
|
}
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|