445 lines
14 KiB
C
445 lines
14 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 "mndStream.h"
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#include "mndAuth.h"
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#include "mndDb.h"
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#include "mndDnode.h"
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#include "mndMnode.h"
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#include "mndShow.h"
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#include "mndStb.h"
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#include "mndTrans.h"
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#include "mndUser.h"
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#include "mndVgroup.h"
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#include "tname.h"
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#define MND_STREAM_VER_NUMBER 1
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#define MND_STREAM_RESERVE_SIZE 64
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static int32_t mndStreamActionInsert(SSdb *pSdb, SStreamObj *pStream);
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static int32_t mndStreamActionDelete(SSdb *pSdb, SStreamObj *pStream);
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static int32_t mndStreamActionUpdate(SSdb *pSdb, SStreamObj *pStream, SStreamObj *pNewStream);
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static int32_t mndProcessCreateStreamReq(SNodeMsg *pReq);
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/*static int32_t mndProcessDropStreamReq(SNodeMsg *pReq);*/
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/*static int32_t mndProcessDropStreamInRsp(SNodeMsg *pRsp);*/
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static int32_t mndProcessStreamMetaReq(SNodeMsg *pReq);
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static int32_t mndGetStreamMeta(SNodeMsg *pReq, SShowObj *pShow, STableMetaRsp *pMeta);
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static int32_t mndRetrieveStream(SNodeMsg *pReq, SShowObj *pShow, char *data, int32_t rows);
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static void mndCancelGetNextStream(SMnode *pMnode, void *pIter);
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int32_t mndInitStream(SMnode *pMnode) {
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SSdbTable table = {.sdbType = SDB_STREAM,
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.keyType = SDB_KEY_BINARY,
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.encodeFp = (SdbEncodeFp)mndStreamActionEncode,
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.decodeFp = (SdbDecodeFp)mndStreamActionDecode,
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.insertFp = (SdbInsertFp)mndStreamActionInsert,
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.updateFp = (SdbUpdateFp)mndStreamActionUpdate,
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.deleteFp = (SdbDeleteFp)mndStreamActionDelete};
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mndSetMsgHandle(pMnode, TDMT_MND_CREATE_STREAM, mndProcessCreateStreamReq);
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/*mndSetMsgHandle(pMnode, TDMT_MND_DROP_STREAM, mndProcessDropStreamReq);*/
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/*mndSetMsgHandle(pMnode, TDMT_MND_DROP_STREAM_RSP, mndProcessDropStreamInRsp);*/
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mndAddShowMetaHandle(pMnode, TSDB_MGMT_TABLE_TP, mndGetStreamMeta);
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mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_TP, mndRetrieveStream);
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mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_TP, mndCancelGetNextStream);
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return sdbSetTable(pMnode->pSdb, table);
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}
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void mndCleanupStream(SMnode *pMnode) {}
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SSdbRaw *mndStreamActionEncode(SStreamObj *pStream) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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void *buf = NULL;
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SCoder encoder;
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tCoderInit(&encoder, TD_LITTLE_ENDIAN, NULL, 0, TD_ENCODER);
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if (tEncodeSStreamObj(NULL, pStream) < 0) {
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tCoderClear(&encoder);
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goto STREAM_ENCODE_OVER;
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}
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int32_t tlen = encoder.pos;
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tCoderClear(&encoder);
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int32_t size = sizeof(int32_t) + tlen + MND_STREAM_RESERVE_SIZE;
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SSdbRaw *pRaw = sdbAllocRaw(SDB_STREAM, MND_STREAM_VER_NUMBER, size);
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if (pRaw == NULL) goto STREAM_ENCODE_OVER;
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buf = malloc(tlen);
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if (buf == NULL) goto STREAM_ENCODE_OVER;
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tCoderInit(&encoder, TD_LITTLE_ENDIAN, buf, tlen, TD_ENCODER);
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if (tEncodeSStreamObj(NULL, pStream) < 0) {
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tCoderClear(&encoder);
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goto STREAM_ENCODE_OVER;
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}
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tCoderClear(&encoder);
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int32_t dataPos = 0;
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SDB_SET_INT32(pRaw, dataPos, tlen, STREAM_ENCODE_OVER);
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SDB_SET_BINARY(pRaw, dataPos, buf, tlen, STREAM_ENCODE_OVER);
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SDB_SET_DATALEN(pRaw, dataPos, STREAM_ENCODE_OVER);
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terrno = TSDB_CODE_SUCCESS;
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STREAM_ENCODE_OVER:
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tfree(buf);
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if (terrno != TSDB_CODE_SUCCESS) {
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mError("stream:%s, failed to encode to raw:%p since %s", pStream->name, pRaw, terrstr());
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sdbFreeRaw(pRaw);
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return NULL;
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}
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mTrace("stream:%s, encode to raw:%p, row:%p", pStream->name, pRaw, pStream);
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return pRaw;
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}
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SSdbRow *mndStreamActionDecode(SSdbRaw *pRaw) {
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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void *buf = NULL;
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int8_t sver = 0;
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if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto STREAM_DECODE_OVER;
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if (sver != MND_STREAM_VER_NUMBER) {
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terrno = TSDB_CODE_SDB_INVALID_DATA_VER;
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goto STREAM_DECODE_OVER;
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}
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int32_t size = sizeof(SStreamObj);
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SSdbRow *pRow = sdbAllocRow(size);
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if (pRow == NULL) goto STREAM_DECODE_OVER;
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SStreamObj *pStream = sdbGetRowObj(pRow);
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if (pStream == NULL) goto STREAM_DECODE_OVER;
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int32_t tlen;
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int32_t dataPos = 0;
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SDB_GET_INT32(pRaw, dataPos, &tlen, STREAM_DECODE_OVER);
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buf = malloc(tlen + 1);
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if (buf == NULL) goto STREAM_DECODE_OVER;
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SDB_GET_BINARY(pRaw, dataPos, buf, tlen, STREAM_DECODE_OVER);
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SCoder decoder;
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tCoderInit(&decoder, TD_LITTLE_ENDIAN, NULL, 0, TD_DECODER);
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if (tDecodeSStreamObj(&decoder, pStream) < 0) {
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goto STREAM_DECODE_OVER;
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}
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terrno = TSDB_CODE_SUCCESS;
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STREAM_DECODE_OVER:
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tfree(buf);
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if (terrno != TSDB_CODE_SUCCESS) {
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mError("stream:%s, failed to decode from raw:%p since %s", pStream->name, pRaw, terrstr());
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tfree(pRow);
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return NULL;
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}
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mTrace("stream:%s, decode from raw:%p, row:%p", pStream->name, pRaw, pStream);
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return pRow;
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}
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static int32_t mndStreamActionInsert(SSdb *pSdb, SStreamObj *pStream) {
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mTrace("stream:%s, perform insert action", pStream->name);
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return 0;
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}
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static int32_t mndStreamActionDelete(SSdb *pSdb, SStreamObj *pStream) {
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mTrace("stream:%s, perform delete action", pStream->name);
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return 0;
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}
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static int32_t mndStreamActionUpdate(SSdb *pSdb, SStreamObj *pOldStream, SStreamObj *pNewStream) {
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mTrace("stream:%s, perform update action", pOldStream->name);
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atomic_exchange_32(&pOldStream->updateTime, pNewStream->updateTime);
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atomic_exchange_32(&pOldStream->version, pNewStream->version);
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taosWLockLatch(&pOldStream->lock);
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// TODO handle update
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taosWUnLockLatch(&pOldStream->lock);
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return 0;
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}
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SStreamObj *mndAcquireStream(SMnode *pMnode, char *streamName) {
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SSdb *pSdb = pMnode->pSdb;
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SStreamObj *pStream = sdbAcquire(pSdb, SDB_STREAM, streamName);
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if (pStream == NULL && terrno == TSDB_CODE_SDB_OBJ_NOT_THERE) {
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terrno = TSDB_CODE_MND_STREAM_NOT_EXIST;
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}
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return pStream;
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}
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void mndReleaseStream(SMnode *pMnode, SStreamObj *pStream) {
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SSdb *pSdb = pMnode->pSdb;
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sdbRelease(pSdb, pStream);
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}
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static SDbObj *mndAcquireDbByStream(SMnode *pMnode, char *streamName) {
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SName name = {0};
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tNameFromString(&name, streamName, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);
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char db[TSDB_STREAM_FNAME_LEN] = {0};
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tNameGetFullDbName(&name, db);
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return mndAcquireDb(pMnode, db);
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}
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static int32_t mndCheckCreateStreamReq(SCMCreateStreamReq *pCreate) {
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if (pCreate->name[0] == 0 || pCreate->sql == NULL || pCreate->sql[0] == 0) {
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terrno = TSDB_CODE_MND_INVALID_STREAM_OPTION;
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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 mndCreateStream(SMnode *pMnode, SNodeMsg *pReq, SCMCreateStreamReq *pCreate, SDbObj *pDb) {
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mDebug("stream:%s to create", pCreate->name);
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SStreamObj streamObj = {0};
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tstrncpy(streamObj.name, pCreate->name, TSDB_STREAM_FNAME_LEN);
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tstrncpy(streamObj.db, pDb->name, TSDB_DB_FNAME_LEN);
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streamObj.createTime = taosGetTimestampMs();
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streamObj.updateTime = streamObj.createTime;
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streamObj.uid = mndGenerateUid(pCreate->name, strlen(pCreate->name));
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streamObj.dbUid = pDb->uid;
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streamObj.version = 1;
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streamObj.sql = pCreate->sql;
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streamObj.physicalPlan = pCreate->physicalPlan;
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streamObj.logicalPlan = pCreate->logicalPlan;
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STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_TYPE_CREATE_STREAM, &pReq->rpcMsg);
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if (pTrans == NULL) {
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mError("stream:%s, failed to create since %s", pCreate->name, terrstr());
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return -1;
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}
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mDebug("trans:%d, used to create stream:%s", pTrans->id, pCreate->name);
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SSdbRaw *pRedoRaw = mndStreamActionEncode(&streamObj);
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if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
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mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
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mndTransDrop(pTrans);
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return -1;
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}
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sdbSetRawStatus(pRedoRaw, SDB_STATUS_READY);
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if (mndTransPrepare(pMnode, pTrans) != 0) {
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mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
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mndTransDrop(pTrans);
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return -1;
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}
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mndTransDrop(pTrans);
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return 0;
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}
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static int32_t mndProcessCreateStreamReq(SNodeMsg *pReq) {
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SMnode *pMnode = pReq->pNode;
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int32_t code = -1;
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SStreamObj *pStream = NULL;
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SDbObj *pDb = NULL;
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SUserObj *pUser = NULL;
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SCMCreateStreamReq createStreamReq = {0};
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if (tDeserializeSCMCreateStreamReq(pReq->rpcMsg.pCont, pReq->rpcMsg.contLen, &createStreamReq) != 0) {
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terrno = TSDB_CODE_INVALID_MSG;
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goto CREATE_STREAM_OVER;
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}
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mDebug("stream:%s, start to create, sql:%s", createStreamReq.name, createStreamReq.sql);
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if (mndCheckCreateStreamReq(&createStreamReq) != 0) {
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mError("stream:%s, failed to create since %s", createStreamReq.name, terrstr());
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goto CREATE_STREAM_OVER;
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}
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pStream = mndAcquireStream(pMnode, createStreamReq.name);
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if (pStream != NULL) {
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if (createStreamReq.igExists) {
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mDebug("stream:%s, already exist, ignore exist is set", createStreamReq.name);
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code = 0;
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goto CREATE_STREAM_OVER;
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} else {
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terrno = TSDB_CODE_MND_STREAM_ALREADY_EXIST;
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goto CREATE_STREAM_OVER;
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}
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} else if (terrno != TSDB_CODE_MND_STREAM_NOT_EXIST) {
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goto CREATE_STREAM_OVER;
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}
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pDb = mndAcquireDbByStream(pMnode, createStreamReq.name);
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if (pDb == NULL) {
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terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
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goto CREATE_STREAM_OVER;
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}
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pUser = mndAcquireUser(pMnode, pReq->user);
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if (pUser == NULL) {
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goto CREATE_STREAM_OVER;
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}
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if (mndCheckWriteAuth(pUser, pDb) != 0) {
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goto CREATE_STREAM_OVER;
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}
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code = mndCreateStream(pMnode, pReq, &createStreamReq, pDb);
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if (code == 0) code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
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CREATE_STREAM_OVER:
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if (code != 0 && code != TSDB_CODE_MND_ACTION_IN_PROGRESS) {
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mError("stream:%s, failed to create since %s", createStreamReq.name, terrstr());
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}
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mndReleaseStream(pMnode, pStream);
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mndReleaseDb(pMnode, pDb);
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mndReleaseUser(pMnode, pUser);
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tFreeSCMCreateStreamReq(&createStreamReq);
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return code;
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}
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static int32_t mndGetNumOfStreams(SMnode *pMnode, char *dbName, int32_t *pNumOfStreams) {
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SSdb *pSdb = pMnode->pSdb;
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SDbObj *pDb = mndAcquireDb(pMnode, dbName);
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if (pDb == NULL) {
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terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
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return -1;
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}
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int32_t numOfStreams = 0;
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void *pIter = NULL;
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while (1) {
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SStreamObj *pStream = NULL;
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pIter = sdbFetch(pSdb, SDB_STREAM, pIter, (void **)&pStream);
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if (pIter == NULL) break;
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if (pStream->dbUid == pDb->uid) {
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numOfStreams++;
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}
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sdbRelease(pSdb, pStream);
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}
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*pNumOfStreams = numOfStreams;
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mndReleaseDb(pMnode, pDb);
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return 0;
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}
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static int32_t mndGetStreamMeta(SNodeMsg *pReq, SShowObj *pShow, STableMetaRsp *pMeta) {
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SMnode *pMnode = pReq->pNode;
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SSdb *pSdb = pMnode->pSdb;
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if (mndGetNumOfStreams(pMnode, pShow->db, &pShow->numOfRows) != 0) {
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return -1;
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}
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int32_t cols = 0;
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SSchema *pSchema = pMeta->pSchemas;
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pShow->bytes[cols] = TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE;
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pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
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strcpy(pSchema[cols].name, "name");
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pSchema[cols].bytes = pShow->bytes[cols];
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cols++;
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pShow->bytes[cols] = 8;
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pSchema[cols].type = TSDB_DATA_TYPE_TIMESTAMP;
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strcpy(pSchema[cols].name, "create_time");
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pSchema[cols].bytes = pShow->bytes[cols];
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cols++;
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pShow->bytes[cols] = TSDB_SHOW_SQL_LEN + VARSTR_HEADER_SIZE;
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pSchema[cols].type = TSDB_DATA_TYPE_BINARY;
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strcpy(pSchema[cols].name, "sql");
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pSchema[cols].bytes = pShow->bytes[cols];
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cols++;
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pMeta->numOfColumns = cols;
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pShow->numOfColumns = cols;
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pShow->offset[0] = 0;
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for (int32_t i = 1; i < cols; ++i) {
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pShow->offset[i] = pShow->offset[i - 1] + pShow->bytes[i - 1];
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}
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pShow->numOfRows = sdbGetSize(pSdb, SDB_STREAM);
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pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
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strcpy(pMeta->tbName, mndShowStr(pShow->type));
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return 0;
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}
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static int32_t mndRetrieveStream(SNodeMsg *pReq, SShowObj *pShow, char *data, int32_t rows) {
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SMnode *pMnode = pReq->pNode;
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SSdb *pSdb = pMnode->pSdb;
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int32_t numOfRows = 0;
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SStreamObj *pStream = NULL;
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int32_t cols = 0;
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char *pWrite;
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char prefix[TSDB_DB_FNAME_LEN] = {0};
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SDbObj *pDb = mndAcquireDb(pMnode, pShow->db);
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if (pDb == NULL) return 0;
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tstrncpy(prefix, pShow->db, TSDB_DB_FNAME_LEN);
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strcat(prefix, TS_PATH_DELIMITER);
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int32_t prefixLen = (int32_t)strlen(prefix);
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while (numOfRows < rows) {
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pShow->pIter = sdbFetch(pSdb, SDB_STREAM, pShow->pIter, (void **)&pStream);
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if (pShow->pIter == NULL) break;
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if (pStream->dbUid != pDb->uid) {
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if (strncmp(pStream->name, prefix, prefixLen) != 0) {
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mError("Inconsistent stream data, name:%s, db:%s, dbUid:%" PRIu64, pStream->name, pDb->name, pDb->uid);
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}
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sdbRelease(pSdb, pStream);
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continue;
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}
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cols = 0;
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char streamName[TSDB_TABLE_NAME_LEN] = {0};
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tstrncpy(streamName, pStream->name + prefixLen, TSDB_TABLE_NAME_LEN);
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pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
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STR_TO_VARSTR(pWrite, streamName);
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cols++;
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pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
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*(int64_t *)pWrite = pStream->createTime;
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cols++;
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pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
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STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pStream->sql, pShow->bytes[cols]);
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cols++;
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numOfRows++;
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sdbRelease(pSdb, pStream);
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}
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mndReleaseDb(pMnode, pDb);
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pShow->numOfReads += numOfRows;
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mndVacuumResult(data, pShow->numOfColumns, numOfRows, rows, pShow);
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return numOfRows;
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}
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static void mndCancelGetNextStream(SMnode *pMnode, void *pIter) {
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SSdb *pSdb = pMnode->pSdb;
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sdbCancelFetch(pSdb, pIter);
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}
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