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Star 22016
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TDengine
TDengine
提交 d68bfc97 编写于 作者: H Hongze Cheng
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refact: tsdb

上级 f42ce55a
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source/dnode/vnode/CMakeLists.txt
浏览文件 @ d68bfc97
...@@ -35,7 +35,6 @@ target_sources( ...@@ -35,7 +35,6 @@ target_sources(
"src/sma/smaTimeRange.c" "src/sma/smaTimeRange.c"
# tsdb # tsdb
# "src/tsdb/tsdbTDBImpl.c"
"src/tsdb/tsdbCommit.c" "src/tsdb/tsdbCommit.c"
"src/tsdb/tsdbCommit2.c" "src/tsdb/tsdbCommit2.c"
"src/tsdb/tsdbFile.c" "src/tsdb/tsdbFile.c"
...@@ -45,7 +44,6 @@ target_sources( ...@@ -45,7 +44,6 @@ target_sources(
"src/tsdb/tsdbMemTable2.c" "src/tsdb/tsdbMemTable2.c"
"src/tsdb/tsdbRead.c" "src/tsdb/tsdbRead.c"
"src/tsdb/tsdbReadImpl.c" "src/tsdb/tsdbReadImpl.c"
# "src/tsdb/tsdbSma.c"
"src/tsdb/tsdbWrite.c" "src/tsdb/tsdbWrite.c"
"src/tsdb/tsdbSnapshot.c" "src/tsdb/tsdbSnapshot.c"
......
source/dnode/vnode/src/tsdb/tsdbSma.c 已删除 100644 → 0
浏览文件 @ f42ce55a
/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tsdbSma.h"
#include "tsdb.h"
static const char *TSDB_SMA_DNAME[] = {
"", // TSDB_SMA_TYPE_BLOCK
"tsma", // TSDB_SMA_TYPE_TIME_RANGE
"rsma", // TSDB_SMA_TYPE_ROLLUP
};
#undef _TEST_SMA_PRINT_DEBUG_LOG_
#define SMA_STORAGE_TSDB_DAYS 30
#define SMA_STORAGE_TSDB_TIMES 10
#define SMA_STORAGE_SPLIT_HOURS 24
#define SMA_KEY_LEN 16 // TSKEY+groupId 8+8
#define SMA_DROP_EXPIRED_TIME 10 // default is 10 seconds
#define SMA_STATE_HASH_SLOT 4
#define SMA_STATE_ITEM_HASH_SLOT 32
#define SMA_TEST_INDEX_NAME "smaTestIndexName" // TODO: just for test
#define SMA_TEST_INDEX_UID 2000000001 // TODO: just for test
typedef struct SRSmaInfo SRSmaInfo;
typedef enum {
SMA_STORAGE_LEVEL_TSDB = 0, // use days of self-defined e.g. vnode${N}/tsdb/tsma/sma_index_uid/v2f200.tsma
SMA_STORAGE_LEVEL_DFILESET = 1 // use days of TS data e.g. vnode${N}/tsdb/tsma/sma_index_uid/v2f1906.tsma
} ESmaStorageLevel;
typedef struct SPoolMem {
int64_t size;
struct SPoolMem *prev;
struct SPoolMem *next;
} SPoolMem;
struct SSmaEnv {
TdThreadRwlock lock;
int8_t type;
TXN txn;
SPoolMem *pPool;
SDiskID did;
TDB *dbEnv; // TODO: If it's better to put it in smaIndex level?
char *path; // relative path
SSmaStat *pStat;
};
#define SMA_ENV_LOCK(env) ((env)->lock)
#define SMA_ENV_TYPE(env) ((env)->type)
#define SMA_ENV_DID(env) ((env)->did)
#define SMA_ENV_ENV(env) ((env)->dbEnv)
#define SMA_ENV_PATH(env) ((env)->path)
#define SMA_ENV_STAT(env) ((env)->pStat)
#define SMA_ENV_STAT_ITEMS(env) ((env)->pStat->smaStatItems)
typedef struct {
STsdb *pTsdb;
SDBFile dFile;
const SArray *pDataBlocks; // sma data
int32_t interval; // interval with the precision of DB
} STSmaWriteH;
typedef struct {
int32_t iter;
int32_t fid;
} SmaFsIter;
typedef struct {
STsdb *pTsdb;
SDBFile dFile;
int32_t interval; // interval with the precision of DB
int32_t blockSize; // size of SMA block item
int8_t storageLevel;
int8_t days;
SmaFsIter smaFsIter;
} STSmaReadH;
typedef struct {
/**
* @brief The field 'state' is here to demonstrate if one smaIndex is ready to provide service.
* - TSDB_SMA_STAT_OK: 1) The sma calculation of history data is finished; 2) Or recevied information from
* Streaming Module or TSDB local persistence.
* - TSDB_SMA_STAT_EXPIRED: 1) If sma calculation of history TS data is not finished; 2) Or if the TSDB is open,
* without information about its previous state.
* - TSDB_SMA_STAT_DROPPED: 1)sma dropped
* N.B. only applicable to tsma
*/
int8_t state; // ETsdbSmaStat
SHashObj *expiredWindows; // key: skey of time window, value: N/A
STSma *pSma; // cache schema
} SSmaStatItem;
#define RSMA_TASK_INFO_HASH_SLOT 8
struct SRSmaInfo {
void *taskInfo[TSDB_RETENTION_L2]; // qTaskInfo_t
};
struct SSmaStat {
union {
SHashObj *smaStatItems; // key: indexUid, value: SSmaStatItem for tsma
SHashObj *rsmaInfoHash; // key: stbUid, value: SRSmaInfo;
};
T_REF_DECLARE()
};
#define SMA_STAT_ITEMS(s) ((s)->smaStatItems)
#define SMA_STAT_INFO_HASH(s) ((s)->rsmaInfoHash)
static FORCE_INLINE void tsdbFreeTaskHandle(qTaskInfo_t *taskHandle) {
// Note: free/kill may in RC
qTaskInfo_t otaskHandle = atomic_load_ptr(taskHandle);
if (otaskHandle && atomic_val_compare_exchange_ptr(taskHandle, otaskHandle, NULL)) {
qDestroyTask(otaskHandle);
}
}
static FORCE_INLINE void *tsdbFreeRSmaInfo(SRSmaInfo *pInfo) {
for (int32_t i = 0; i < TSDB_RETENTION_MAX; ++i) {
if (pInfo->taskInfo[i]) {
tsdbFreeTaskHandle(pInfo->taskInfo[i]);
}
}
return NULL;
}
// declaration of static functions
// expired window
static int32_t tsdbUpdateExpiredWindowImpl(STsdb *pTsdb, SSubmitReq *pMsg, int64_t version);
static int32_t tsdbSetExpiredWindow(STsdb *pTsdb, SHashObj *pItemsHash, int64_t indexUid, int64_t winSKey,
int64_t version);
static int32_t tsdbInitSmaStat(SSmaStat **pSmaStat, int8_t smaType);
static void *tsdbFreeSmaStatItem(SSmaStatItem *pSmaStatItem);
static int32_t tsdbDestroySmaState(SSmaStat *pSmaStat, int8_t smaType);
static SSmaEnv *tsdbNewSmaEnv(const STsdb *pTsdb, int8_t smaType, const char *path, SDiskID did);
static int32_t tsdbInitSmaEnv(STsdb *pTsdb, int8_t smaType, const char *path, SDiskID did, SSmaEnv **pEnv);
static int32_t tsdbResetExpiredWindow(STsdb *pTsdb, SSmaStat *pStat, int64_t indexUid, TSKEY skey);
static int32_t tsdbRefSmaStat(STsdb *pTsdb, SSmaStat *pStat);
static int32_t tsdbUnRefSmaStat(STsdb *pTsdb, SSmaStat *pStat);
// read data
// TODO: This is the basic params, and should wrap the params to a queryHandle.
static int32_t tsdbGetTSmaDataImpl(STsdb *pTsdb, char *pData, int64_t indexUid, TSKEY querySKey, int32_t nMaxResult);
// insert data
static int32_t tsdbInitTSmaWriteH(STSmaWriteH *pSmaH, STsdb *pTsdb, const SArray *pDataBlocks, int64_t interval,
int8_t intervalUnit);
static void tsdbDestroyTSmaWriteH(STSmaWriteH *pSmaH);
static int32_t tsdbInitTSmaReadH(STSmaReadH *pSmaH, STsdb *pTsdb, int64_t interval, int8_t intervalUnit);
static int32_t tsdbGetSmaStorageLevel(int64_t interval, int8_t intervalUnit);
static int32_t tsdbSetRSmaDataFile(STSmaWriteH *pSmaH, int32_t fid);
static int32_t tsdbInsertTSmaBlocks(STSmaWriteH *pSmaH, void *smaKey, int32_t keyLen, void *pData, int32_t dataLen,
TXN *txn);
static int64_t tsdbGetIntervalByPrecision(int64_t interval, uint8_t intervalUnit, int8_t precision, bool adjusted);
static int32_t tsdbGetTSmaDays(STsdb *pTsdb, int64_t interval, int32_t storageLevel);
static int32_t tsdbSetTSmaDataFile(STSmaWriteH *pSmaH, int64_t indexUid, int32_t fid);
static int32_t tsdbInitTSmaFile(STSmaReadH *pSmaH, int64_t indexUid, TSKEY skey);
static bool tsdbSetAndOpenTSmaFile(STSmaReadH *pReadH, TSKEY *queryKey);
static void tsdbGetSmaDir(int32_t vgId, ETsdbSmaType smaType, char dirName[]);
static int32_t tsdbInsertTSmaDataImpl(STsdb *pTsdb, int64_t indexUid, const char *msg);
static int32_t tsdbInsertRSmaDataImpl(STsdb *pTsdb, const char *msg);
static FORCE_INLINE int32_t tsdbUidStorePut(STbUidStore *pStore, tb_uid_t suid, tb_uid_t *uid);
static FORCE_INLINE int32_t tsdbUpdateTbUidListImpl(STsdb *pTsdb, tb_uid_t *suid, SArray *tbUids);
static FORCE_INLINE int32_t tsdbExecuteRSmaImpl(STsdb *pTsdb, const void *pMsg, int32_t inputType,
qTaskInfo_t *taskInfo, STSchema *pTSchema, tb_uid_t suid, tb_uid_t uid,
int8_t level);
// mgmt interface
static int32_t tsdbDropTSmaDataImpl(STsdb *pTsdb, int64_t indexUid);
// Pool Memory
static SPoolMem *openPool();
static void clearPool(SPoolMem *pPool);
static void closePool(SPoolMem *pPool);
static void *poolMalloc(void *arg, size_t size);
static void poolFree(void *arg, void *ptr);
static int tsdbSmaBeginCommit(SSmaEnv *pEnv);
static int tsdbSmaEndCommit(SSmaEnv *pEnv);
// implementation
static FORCE_INLINE int16_t tsdbTSmaAdd(STsdb *pTsdb, int16_t n) {
return atomic_add_fetch_16(&REPO_TSMA_NUM(pTsdb), n);
}
static FORCE_INLINE int16_t tsdbTSmaSub(STsdb *pTsdb, int16_t n) {
return atomic_sub_fetch_16(&REPO_TSMA_NUM(pTsdb), n);
}
static FORCE_INLINE int32_t tsdbRLockSma(SSmaEnv *pEnv) {
int code = taosThreadRwlockRdlock(&(pEnv->lock));
if (code != 0) {
terrno = TAOS_SYSTEM_ERROR(code);
return -1;
}
return 0;
}
static FORCE_INLINE int32_t tsdbWLockSma(SSmaEnv *pEnv) {
int code = taosThreadRwlockWrlock(&(pEnv->lock));
if (code != 0) {
terrno = TAOS_SYSTEM_ERROR(code);
return -1;
}
return 0;
}
static FORCE_INLINE int32_t tsdbUnLockSma(SSmaEnv *pEnv) {
int code = taosThreadRwlockUnlock(&(pEnv->lock));
if (code != 0) {
terrno = TAOS_SYSTEM_ERROR(code);
return -1;
}
return 0;
}
static SPoolMem *openPool() {
SPoolMem *pPool = (SPoolMem *)taosMemoryMalloc(sizeof(*pPool));
pPool->prev = pPool->next = pPool;
pPool->size = 0;
return pPool;
}
static void clearPool(SPoolMem *pPool) {
if (!pPool) return;
SPoolMem *pMem;
do {
pMem = pPool->next;
if (pMem == pPool) break;
pMem->next->prev = pMem->prev;
pMem->prev->next = pMem->next;
pPool->size -= pMem->size;
taosMemoryFree(pMem);
} while (1);
assert(pPool->size == 0);
}
static void closePool(SPoolMem *pPool) {
if (pPool) {
clearPool(pPool);
taosMemoryFree(pPool);
}
}
static void *poolMalloc(void *arg, size_t size) {
void *ptr = NULL;
SPoolMem *pPool = (SPoolMem *)arg;
SPoolMem *pMem;
pMem = (SPoolMem *)taosMemoryMalloc(sizeof(*pMem) + size);
if (!pMem) {
assert(0);
}
pMem->size = sizeof(*pMem) + size;
pMem->next = pPool->next;
pMem->prev = pPool;
pPool->next->prev = pMem;
pPool->next = pMem;
pPool->size += pMem->size;
ptr = (void *)(&pMem[1]);
return ptr;
}
static void poolFree(void *arg, void *ptr) {
SPoolMem *pPool = (SPoolMem *)arg;
SPoolMem *pMem;
pMem = &(((SPoolMem *)ptr)[-1]);
pMem->next->prev = pMem->prev;
pMem->prev->next = pMem->next;
pPool->size -= pMem->size;
taosMemoryFree(pMem);
}
int32_t tsdbInitSma(STsdb *pTsdb) {
// tSma
int32_t numOfTSma = taosArrayGetSize(metaGetSmaTbUids(REPO_META(pTsdb), false));
if (numOfTSma > 0) {
atomic_store_16(&REPO_TSMA_NUM(pTsdb), (int16_t)numOfTSma);
}
// TODO: rSma
return TSDB_CODE_SUCCESS;
}
static FORCE_INLINE int8_t tsdbSmaStat(SSmaStatItem *pStatItem) {
if (pStatItem) {
return atomic_load_8(&pStatItem->state);
}
return TSDB_SMA_STAT_UNKNOWN;
}
static FORCE_INLINE bool tsdbSmaStatIsOK(SSmaStatItem *pStatItem, int8_t *state) {
if (!pStatItem) {
return false;
}
if (state) {
*state = atomic_load_8(&pStatItem->state);
return *state == TSDB_SMA_STAT_OK;
}
return atomic_load_8(&pStatItem->state) == TSDB_SMA_STAT_OK;
}
static FORCE_INLINE bool tsdbSmaStatIsExpired(SSmaStatItem *pStatItem) {
return pStatItem ? (atomic_load_8(&pStatItem->state) & TSDB_SMA_STAT_EXPIRED) : true;
}
static FORCE_INLINE bool tsdbSmaStatIsDropped(SSmaStatItem *pStatItem) {
return pStatItem ? (atomic_load_8(&pStatItem->state) & TSDB_SMA_STAT_DROPPED) : true;
}
static FORCE_INLINE void tsdbSmaStatSetOK(SSmaStatItem *pStatItem) {
if (pStatItem) {
atomic_store_8(&pStatItem->state, TSDB_SMA_STAT_OK);
}
}
static FORCE_INLINE void tsdbSmaStatSetExpired(SSmaStatItem *pStatItem) {
if (pStatItem) {
atomic_or_fetch_8(&pStatItem->state, TSDB_SMA_STAT_EXPIRED);
}
}
static FORCE_INLINE void tsdbSmaStatSetDropped(SSmaStatItem *pStatItem) {
if (pStatItem) {
atomic_or_fetch_8(&pStatItem->state, TSDB_SMA_STAT_DROPPED);
}
}
static void tsdbGetSmaDir(int32_t vgId, ETsdbSmaType smaType, char dirName[]) {
snprintf(dirName, TSDB_FILENAME_LEN, "vnode%svnode%d%s%s", TD_DIRSEP, vgId, TD_DIRSEP, TSDB_SMA_DNAME[smaType]);
}
static SSmaEnv *tsdbNewSmaEnv(const STsdb *pTsdb, int8_t smaType, const char *path, SDiskID did) {
SSmaEnv *pEnv = NULL;
pEnv = (SSmaEnv *)taosMemoryCalloc(1, sizeof(SSmaEnv));
if (!pEnv) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return NULL;
}
SMA_ENV_TYPE(pEnv) = smaType;
int code = taosThreadRwlockInit(&(pEnv->lock), NULL);
if (code) {
terrno = TAOS_SYSTEM_ERROR(code);
taosMemoryFree(pEnv);
return NULL;
}
ASSERT(path && (strlen(path) > 0));
SMA_ENV_PATH(pEnv) = strdup(path);
if (!SMA_ENV_PATH(pEnv)) {
tsdbFreeSmaEnv(pEnv);
return NULL;
}
SMA_ENV_DID(pEnv) = did;
if (tsdbInitSmaStat(&SMA_ENV_STAT(pEnv), smaType) != TSDB_CODE_SUCCESS) {
tsdbFreeSmaEnv(pEnv);
return NULL;
}
char aname[TSDB_FILENAME_LEN] = {0};
tfsAbsoluteName(REPO_TFS(pTsdb), did, path, aname);
if (tsdbOpenDBEnv(&pEnv->dbEnv, aname) != TSDB_CODE_SUCCESS) {
tsdbFreeSmaEnv(pEnv);
return NULL;
}
if (!(pEnv->pPool = openPool())) {
tsdbFreeSmaEnv(pEnv);
return NULL;
}
return pEnv;
}
static int32_t tsdbInitSmaEnv(STsdb *pTsdb, int8_t smaType, const char *path, SDiskID did, SSmaEnv **pEnv) {
if (!pEnv) {
terrno = TSDB_CODE_INVALID_PTR;
return TSDB_CODE_FAILED;
}
if (!(*pEnv)) {
if (!(*pEnv = tsdbNewSmaEnv(pTsdb, smaType, path, did))) {
return TSDB_CODE_FAILED;
}
}
return TSDB_CODE_SUCCESS;
}
/**
* @brief Release resources allocated for its member fields, not including itself.
*
* @param pSmaEnv
* @return int32_t
*/
void tsdbDestroySmaEnv(SSmaEnv *pSmaEnv) {
if (pSmaEnv) {
tsdbDestroySmaState(pSmaEnv->pStat, SMA_ENV_TYPE(pSmaEnv));
taosMemoryFreeClear(pSmaEnv->pStat);
taosMemoryFreeClear(pSmaEnv->path);
taosThreadRwlockDestroy(&(pSmaEnv->lock));
tsdbCloseDBEnv(pSmaEnv->dbEnv);
closePool(pSmaEnv->pPool);
}
}
void *tsdbFreeSmaEnv(SSmaEnv *pSmaEnv) {
tsdbDestroySmaEnv(pSmaEnv);
taosMemoryFreeClear(pSmaEnv);
return NULL;
}
static int32_t tsdbRefSmaStat(STsdb *pTsdb, SSmaStat *pStat) {
if (!pStat) return 0;
int ref = T_REF_INC(pStat);
tsdbDebug("vgId:%d ref sma stat:%p, val:%d", REPO_ID(pTsdb), pStat, ref);
return 0;
}
static int32_t tsdbUnRefSmaStat(STsdb *pTsdb, SSmaStat *pStat) {
if (!pStat) return 0;
int ref = T_REF_DEC(pStat);
tsdbDebug("vgId:%d unref sma stat:%p, val:%d", REPO_ID(pTsdb), pStat, ref);
return 0;
}
static int32_t tsdbInitSmaStat(SSmaStat **pSmaStat, int8_t smaType) {
ASSERT(pSmaStat != NULL);
if (*pSmaStat) { // no lock
return TSDB_CODE_SUCCESS;
}
/**
* 1. Lazy mode utilized when init SSmaStat to update expired window(or hungry mode when tsdbNew).
* 2. Currently, there is mutex lock when init SSmaEnv, thus no need add lock on SSmaStat, and please add lock if
* tsdbInitSmaStat invoked in other multithread environment later.
*/
if (!(*pSmaStat)) {
*pSmaStat = (SSmaStat *)taosMemoryCalloc(1, sizeof(SSmaStat));
if (!(*pSmaStat)) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return TSDB_CODE_FAILED;
}
if (smaType == TSDB_SMA_TYPE_ROLLUP) {
SMA_STAT_INFO_HASH(*pSmaStat) = taosHashInit(
RSMA_TASK_INFO_HASH_SLOT, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, HASH_ENTRY_LOCK);
if (!SMA_STAT_INFO_HASH(*pSmaStat)) {
taosMemoryFreeClear(*pSmaStat);
return TSDB_CODE_FAILED;
}
} else if (smaType == TSDB_SMA_TYPE_TIME_RANGE) {
SMA_STAT_ITEMS(*pSmaStat) =
taosHashInit(SMA_STATE_HASH_SLOT, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
if (!SMA_STAT_ITEMS(*pSmaStat)) {
taosMemoryFreeClear(*pSmaStat);
return TSDB_CODE_FAILED;
}
} else {
ASSERT(0);
}
}
return TSDB_CODE_SUCCESS;
}
static SSmaStatItem *tsdbNewSmaStatItem(int8_t state) {
SSmaStatItem *pItem = NULL;
pItem = (SSmaStatItem *)taosMemoryCalloc(1, sizeof(SSmaStatItem));
if (pItem) {
pItem->state = state;
pItem->expiredWindows = taosHashInit(SMA_STATE_ITEM_HASH_SLOT, taosGetDefaultHashFunction(TSDB_DATA_TYPE_TIMESTAMP),
true, HASH_ENTRY_LOCK);
if (!pItem->expiredWindows) {
taosMemoryFreeClear(pItem);
}
}
return pItem;
}
static void *tsdbFreeSmaStatItem(SSmaStatItem *pSmaStatItem) {
if (pSmaStatItem) {
tdDestroyTSma(pSmaStatItem->pSma);
taosMemoryFreeClear(pSmaStatItem->pSma);
taosHashCleanup(pSmaStatItem->expiredWindows);
taosMemoryFreeClear(pSmaStatItem);
}
return NULL;
}
/**
* @brief Release resources allocated for its member fields, not including itself.
*
* @param pSmaStat
* @return int32_t
*/
int32_t tsdbDestroySmaState(SSmaStat *pSmaStat, int8_t smaType) {
if (pSmaStat) {
// TODO: use taosHashSetFreeFp when taosHashSetFreeFp is ready.
if (smaType == TSDB_SMA_TYPE_TIME_RANGE) {
void *item = taosHashIterate(SMA_STAT_ITEMS(pSmaStat), NULL);
while (item) {
SSmaStatItem *pItem = *(SSmaStatItem **)item;
tsdbFreeSmaStatItem(pItem);
item = taosHashIterate(SMA_STAT_ITEMS(pSmaStat), item);
}
taosHashCleanup(SMA_STAT_ITEMS(pSmaStat));
} else if (smaType == TSDB_SMA_TYPE_ROLLUP) {
void *infoHash = taosHashIterate(SMA_STAT_INFO_HASH(pSmaStat), NULL);
while (infoHash) {
SRSmaInfo *pInfoHash = *(SRSmaInfo **)infoHash;
tsdbFreeRSmaInfo(pInfoHash);
infoHash = taosHashIterate(SMA_STAT_INFO_HASH(pSmaStat), infoHash);
}
taosHashCleanup(SMA_STAT_INFO_HASH(pSmaStat));
} else {
ASSERT(0);
}
}
return TSDB_CODE_SUCCESS;
}
static int32_t tsdbCheckAndInitSmaEnv(STsdb *pTsdb, int8_t smaType) {
SSmaEnv *pEnv = NULL;
// return if already init
switch (smaType) {
case TSDB_SMA_TYPE_TIME_RANGE:
if ((pEnv = (SSmaEnv *)atomic_load_ptr(&REPO_TSMA_ENV(pTsdb)))) {
return TSDB_CODE_SUCCESS;
}
break;
case TSDB_SMA_TYPE_ROLLUP:
if ((pEnv = (SSmaEnv *)atomic_load_ptr(&REPO_RSMA_ENV(pTsdb)))) {
return TSDB_CODE_SUCCESS;
}
break;
default:
terrno = TSDB_CODE_INVALID_PARA;
return TSDB_CODE_FAILED;
}
// init sma env
tsdbLockRepo(pTsdb);
pEnv = (smaType == TSDB_SMA_TYPE_TIME_RANGE) ? atomic_load_ptr(&REPO_TSMA_ENV(pTsdb))
: atomic_load_ptr(&REPO_RSMA_ENV(pTsdb));
if (!pEnv) {
char rname[TSDB_FILENAME_LEN] = {0};
SDiskID did = {0};
tfsAllocDisk(REPO_TFS(pTsdb), TFS_PRIMARY_LEVEL, &did);
if (did.level < 0 || did.id < 0) {
tsdbUnlockRepo(pTsdb);
return TSDB_CODE_FAILED;
}
tsdbGetSmaDir(REPO_ID(pTsdb), smaType, rname);
if (tfsMkdirRecurAt(REPO_TFS(pTsdb), rname, did) != TSDB_CODE_SUCCESS) {
tsdbUnlockRepo(pTsdb);
return TSDB_CODE_FAILED;
}
if (tsdbInitSmaEnv(pTsdb, smaType, rname, did, &pEnv) != TSDB_CODE_SUCCESS) {
tsdbUnlockRepo(pTsdb);
return TSDB_CODE_FAILED;
}
(smaType == TSDB_SMA_TYPE_TIME_RANGE) ? atomic_store_ptr(&REPO_TSMA_ENV(pTsdb), pEnv)
: atomic_store_ptr(&REPO_RSMA_ENV(pTsdb), pEnv);
}
tsdbUnlockRepo(pTsdb);
return TSDB_CODE_SUCCESS;
};
static int32_t tsdbSetExpiredWindow(STsdb *pTsdb, SHashObj *pItemsHash, int64_t indexUid, int64_t winSKey,
int64_t version) {
SSmaStatItem *pItem = taosHashGet(pItemsHash, &indexUid, sizeof(indexUid));
if (!pItem) {
// TODO: use TSDB_SMA_STAT_EXPIRED and update by stream computing later
pItem = tsdbNewSmaStatItem(TSDB_SMA_STAT_OK); // TODO use the real state
if (!pItem) {
// Response to stream computing: OOM
// For query, if the indexUid not found, the TSDB should tell query module to query raw TS data.
return TSDB_CODE_FAILED;
}
// cache smaMeta
STSma *pSma = metaGetSmaInfoByIndex(REPO_META(pTsdb), indexUid, true);
if (!pSma) {
terrno = TSDB_CODE_TDB_NO_SMA_INDEX_IN_META;
taosHashCleanup(pItem->expiredWindows);
taosMemoryFree(pItem);
tsdbWarn("vgId:%d update expired window failed for smaIndex %" PRIi64 " since %s", REPO_ID(pTsdb), indexUid,
tstrerror(terrno));
return TSDB_CODE_FAILED;
}
pItem->pSma = pSma;
if (taosHashPut(pItemsHash, &indexUid, sizeof(indexUid), &pItem, sizeof(pItem)) != 0) {
// If error occurs during put smaStatItem, free the resources of pItem
taosHashCleanup(pItem->expiredWindows);
taosMemoryFree(pItem);
return TSDB_CODE_FAILED;
}
} else if (!(pItem = *(SSmaStatItem **)pItem)) {
terrno = TSDB_CODE_INVALID_PTR;
return TSDB_CODE_FAILED;
}
if (taosHashPut(pItem->expiredWindows, &winSKey, sizeof(TSKEY), &version, sizeof(version)) != 0) {
// If error occurs during taosHashPut expired windows, remove the smaIndex from pTsdb->pSmaStat, thus TSDB would
// tell query module to query raw TS data.
// N.B.
// 1) It is assumed to be extemely little probability event of fail to taosHashPut.
// 2) This would solve the inconsistency to some extent, but not completely, unless we record all expired
// windows failed to put into hash table.
taosHashCleanup(pItem->expiredWindows);
taosMemoryFreeClear(pItem->pSma);
taosHashRemove(pItemsHash, &indexUid, sizeof(indexUid));
tsdbWarn("vgId:%d smaIndex %" PRIi64 ", put skey %" PRIi64 " to expire window fail", REPO_ID(pTsdb), indexUid,
winSKey);
return TSDB_CODE_FAILED;
}
tsdbDebug("vgId:%d smaIndex %" PRIi64 ", put skey %" PRIi64 " to expire window succeed", REPO_ID(pTsdb), indexUid,
winSKey);
return TSDB_CODE_SUCCESS;
}
/**
* @brief Update expired window according to msg from stream computing module.
*
* @param pTsdb
* @param msg SSubmitReq
* @return int32_t
*/
int32_t tsdbUpdateExpiredWindowImpl(STsdb *pTsdb, SSubmitReq *pMsg, int64_t version) {
// no time-range-sma, just return success
if (atomic_load_16(&REPO_TSMA_NUM(pTsdb)) <= 0) {
tsdbTrace("vgId:%d not update expire window since no tSma", REPO_ID(pTsdb));
return TSDB_CODE_SUCCESS;
}
if (!REPO_META(pTsdb)) {
terrno = TSDB_CODE_INVALID_PTR;
return TSDB_CODE_FAILED;
}
if (tsdbCheckAndInitSmaEnv(pTsdb, TSDB_SMA_TYPE_TIME_RANGE) != TSDB_CODE_SUCCESS) {
terrno = TSDB_CODE_TDB_INIT_FAILED;
return TSDB_CODE_FAILED;
}
// Firstly, assume that tSma can only be created on super table/normal table.
// getActiveTimeWindow
SSmaEnv *pEnv = REPO_TSMA_ENV(pTsdb);
SSmaStat *pStat = SMA_ENV_STAT(pEnv);
SHashObj *pItemsHash = SMA_ENV_STAT_ITEMS(pEnv);
TASSERT(pEnv && pStat && pItemsHash);
// basic procedure
// TODO: optimization
tsdbRefSmaStat(pTsdb, pStat);
SSubmitMsgIter msgIter = {0};
SSubmitBlk *pBlock = NULL;
SInterval interval = {0};
TSKEY lastWinSKey = INT64_MIN;
if (tInitSubmitMsgIter(pMsg, &msgIter) != TSDB_CODE_SUCCESS) {
return TSDB_CODE_FAILED;
}
while (true) {
tGetSubmitMsgNext(&msgIter, &pBlock);
if (!pBlock) break;
STSmaWrapper *pSW = NULL;
STSma *pTSma = NULL;
SSubmitBlkIter blkIter = {0};
if (tInitSubmitBlkIter(&msgIter, pBlock, &blkIter) != TSDB_CODE_SUCCESS) {
pSW = tdFreeTSmaWrapper(pSW);
break;
}
while (true) {
STSRow *row = tGetSubmitBlkNext(&blkIter);
if (!row) {
tdFreeTSmaWrapper(pSW);
break;
}
if (!pSW || (pTSma->tableUid != pBlock->suid)) {
if (pSW) {
pSW = tdFreeTSmaWrapper(pSW);
}
if (!(pSW = metaGetSmaInfoByTable(REPO_META(pTsdb), pBlock->suid))) {
break;
}
if ((pSW->number) <= 0 || !pSW->tSma) {
pSW = tdFreeTSmaWrapper(pSW);
break;
}
pTSma = pSW->tSma;
interval.interval = pTSma->interval;
interval.intervalUnit = pTSma->intervalUnit;
interval.offset = pTSma->offset;
interval.precision = REPO_CFG(pTsdb)->precision;
interval.sliding = pTSma->sliding;
interval.slidingUnit = pTSma->slidingUnit;
}
TSKEY winSKey = taosTimeTruncate(TD_ROW_KEY(row), &interval, interval.precision);
if (lastWinSKey != winSKey) {
lastWinSKey = winSKey;
tsdbSetExpiredWindow(pTsdb, pItemsHash, pTSma->indexUid, winSKey, version);
} else {
tsdbDebug("vgId:%d smaIndex %" PRIi64 ", put skey %" PRIi64 " to expire window ignore as duplicated",
REPO_ID(pTsdb), pTSma->indexUid, winSKey);
}
}
}
tsdbUnRefSmaStat(pTsdb, pStat);
return TSDB_CODE_SUCCESS;
}
/**
* @brief When sma data received from stream computing, make the relative expired window valid.
*
* @param pTsdb
* @param pStat
* @param indexUid
* @param skey
* @return int32_t
*/
static int32_t tsdbResetExpiredWindow(STsdb *pTsdb, SSmaStat *pStat, int64_t indexUid, TSKEY skey) {
SSmaStatItem *pItem = NULL;
tsdbRefSmaStat(pTsdb, pStat);
if (pStat && SMA_STAT_ITEMS(pStat)) {
pItem = taosHashGet(SMA_STAT_ITEMS(pStat), &indexUid, sizeof(indexUid));
}
if ((pItem) && ((pItem = *(SSmaStatItem **)pItem))) {
// pItem resides in hash buffer all the time unless drop sma index
// TODO: multithread protect
if (taosHashRemove(pItem->expiredWindows, &skey, sizeof(TSKEY)) != 0) {
// error handling
tsdbUnRefSmaStat(pTsdb, pStat);
tsdbWarn("vgId:%d remove skey %" PRIi64 " from expired window for sma index %" PRIi64 " fail", REPO_ID(pTsdb),
skey, indexUid);
return TSDB_CODE_FAILED;
}
tsdbDebug("vgId:%d remove skey %" PRIi64 " from expired window for sma index %" PRIi64 " succeed", REPO_ID(pTsdb),
skey, indexUid);
// TODO: use a standalone interface to received state upate notification from stream computing module.
/**
* @brief state
* - When SMA env init in TSDB, its status is TSDB_SMA_STAT_OK.
* - In startup phase of stream computing module, it should notify the SMA env in TSDB to expired if needed(e.g.
* when batch data caculation not finised)
* - When TSDB_SMA_STAT_OK, the stream computing module should also notify that to the SMA env in TSDB.
*/
pItem->state = TSDB_SMA_STAT_OK;
} else {
// error handling
tsdbUnRefSmaStat(pTsdb, pStat);
tsdbWarn("vgId:%d expired window %" PRIi64 " not exists for sma index %" PRIi64, REPO_ID(pTsdb), skey, indexUid);
return TSDB_CODE_FAILED;
}
tsdbUnRefSmaStat(pTsdb, pStat);
return TSDB_CODE_SUCCESS;
}
/**
* @brief Judge the tSma storage level
*
* @param interval
* @param intervalUnit
* @return int32_t
*/
static int32_t tsdbGetSmaStorageLevel(int64_t interval, int8_t intervalUnit) {
// TODO: configurable for SMA_STORAGE_SPLIT_HOURS?
switch (intervalUnit) {
case TIME_UNIT_HOUR:
if (interval < SMA_STORAGE_SPLIT_HOURS) {
return SMA_STORAGE_LEVEL_DFILESET;
}
break;
case TIME_UNIT_MINUTE:
if (interval < 60 * SMA_STORAGE_SPLIT_HOURS) {
return SMA_STORAGE_LEVEL_DFILESET;
}
break;
case TIME_UNIT_SECOND:
if (interval < 3600 * SMA_STORAGE_SPLIT_HOURS) {
return SMA_STORAGE_LEVEL_DFILESET;
}
break;
case TIME_UNIT_MILLISECOND:
if (interval < 3600 * 1e3 * SMA_STORAGE_SPLIT_HOURS) {
return SMA_STORAGE_LEVEL_DFILESET;
}
break;
case TIME_UNIT_MICROSECOND:
if (interval < 3600 * 1e6 * SMA_STORAGE_SPLIT_HOURS) {
return SMA_STORAGE_LEVEL_DFILESET;
}
break;
case TIME_UNIT_NANOSECOND:
if (interval < 3600 * 1e9 * SMA_STORAGE_SPLIT_HOURS) {
return SMA_STORAGE_LEVEL_DFILESET;
}
break;
default:
break;
}
return SMA_STORAGE_LEVEL_TSDB;
}
/**
* @brief Insert TSma data blocks to DB File build by B+Tree
*
* @param pSmaH
* @param smaKey tableUid-colId-skeyOfWindow(8-2-8)
* @param keyLen
* @param pData
* @param dataLen
* @return int32_t
*/
static int32_t tsdbInsertTSmaBlocks(STSmaWriteH *pSmaH, void *smaKey, int32_t keyLen, void *pData, int32_t dataLen,
TXN *txn) {
SDBFile *pDBFile = &pSmaH->dFile;
// TODO: insert tsma data blocks into B+Tree(TTB)
if (tsdbSaveSmaToDB(pDBFile, smaKey, keyLen, pData, dataLen, txn) != 0) {
tsdbWarn("vgId:%d insert tsma data blocks into %s: smaKey %" PRIx64 "-%" PRIx64 ", dataLen %" PRIu32 " fail",
REPO_ID(pSmaH->pTsdb), pDBFile->path, *(int64_t *)smaKey, *(int64_t *)POINTER_SHIFT(smaKey, 8), dataLen);
return TSDB_CODE_FAILED;
}
tsdbDebug("vgId:%d insert tsma data blocks into %s: smaKey %" PRIx64 "-%" PRIx64 ", dataLen %" PRIu32 " succeed",
REPO_ID(pSmaH->pTsdb), pDBFile->path, *(int64_t *)smaKey, *(int64_t *)POINTER_SHIFT(smaKey, 8), dataLen);
#ifdef _TEST_SMA_PRINT_DEBUG_LOG_
uint32_t valueSize = 0;
void *data = tsdbGetSmaDataByKey(pDBFile, smaKey, keyLen, &valueSize);
ASSERT(data != NULL);
for (uint32_t v = 0; v < valueSize; v += 8) {
tsdbWarn("vgId:%d insert sma data val[%d] %" PRIi64, REPO_ID(pSmaH->pTsdb), v, *(int64_t *)POINTER_SHIFT(data, v));
}
#endif
return TSDB_CODE_SUCCESS;
}
/**
* @brief Approximate value for week/month/year.
*
* @param interval
* @param intervalUnit
* @param precision
* @param adjusted Interval already adjusted according to DB precision
* @return int64_t
*/
static int64_t tsdbGetIntervalByPrecision(int64_t interval, uint8_t intervalUnit, int8_t precision, bool adjusted) {
if (adjusted) {
return interval;
}
switch (intervalUnit) {
case TIME_UNIT_YEAR: // approximate value
interval *= 365 * 86400 * 1e3;
break;
case TIME_UNIT_MONTH: // approximate value
interval *= 30 * 86400 * 1e3;
break;
case TIME_UNIT_WEEK: // approximate value
interval *= 7 * 86400 * 1e3;
break;
case TIME_UNIT_DAY: // the interval for tSma calculation must <= day
interval *= 86400 * 1e3;
break;
case TIME_UNIT_HOUR:
interval *= 3600 * 1e3;
break;
case TIME_UNIT_MINUTE:
interval *= 60 * 1e3;
break;
case TIME_UNIT_SECOND:
interval *= 1e3;
break;
default:
break;
}
switch (precision) {
case TSDB_TIME_PRECISION_MILLI:
if (TIME_UNIT_MICROSECOND == intervalUnit) { // us
return interval / 1e3;
} else if (TIME_UNIT_NANOSECOND == intervalUnit) { // nano second
return interval / 1e6;
} else { // ms
return interval;
}
break;
case TSDB_TIME_PRECISION_MICRO:
if (TIME_UNIT_MICROSECOND == intervalUnit) { // us
return interval;
} else if (TIME_UNIT_NANOSECOND == intervalUnit) { // ns
return interval / 1e3;
} else { // ms
return interval * 1e3;
}
break;
case TSDB_TIME_PRECISION_NANO:
if (TIME_UNIT_MICROSECOND == intervalUnit) { // us
return interval * 1e3;
} else if (TIME_UNIT_NANOSECOND == intervalUnit) { // ns
return interval;
} else { // ms
return interval * 1e6;
}
break;
default: // ms
if (TIME_UNIT_MICROSECOND == intervalUnit) { // us
return interval / 1e3;
} else if (TIME_UNIT_NANOSECOND == intervalUnit) { // ns
return interval / 1e6;
} else { // ms
return interval;
}
break;
}
return interval;
}
static int32_t tsdbInitTSmaWriteH(STSmaWriteH *pSmaH, STsdb *pTsdb, const SArray *pDataBlocks, int64_t interval,
int8_t intervalUnit) {
pSmaH->pTsdb = pTsdb;
pSmaH->interval = tsdbGetIntervalByPrecision(interval, intervalUnit, REPO_CFG(pTsdb)->precision, true);
pSmaH->pDataBlocks = pDataBlocks;
pSmaH->dFile.fid = TSDB_IVLD_FID;
return TSDB_CODE_SUCCESS;
}
static void tsdbDestroyTSmaWriteH(STSmaWriteH *pSmaH) {
if (pSmaH) {
tsdbCloseDBF(&pSmaH->dFile);
}
}
static int32_t tsdbSetTSmaDataFile(STSmaWriteH *pSmaH, int64_t indexUid, int32_t fid) {
STsdb *pTsdb = pSmaH->pTsdb;
ASSERT(!pSmaH->dFile.path && !pSmaH->dFile.pDB);
pSmaH->dFile.fid = fid;
char tSmaFile[TSDB_FILENAME_LEN] = {0};
snprintf(tSmaFile, TSDB_FILENAME_LEN, "%" PRIi64 "%sv%df%d.tsma", indexUid, TD_DIRSEP, REPO_ID(pTsdb), fid);
pSmaH->dFile.path = strdup(tSmaFile);
return TSDB_CODE_SUCCESS;
}
/**
* @brief
*
* @param pTsdb
* @param interval Interval calculated by DB's precision
* @param storageLevel
* @return int32_t
*/
static int32_t tsdbGetTSmaDays(STsdb *pTsdb, int64_t interval, int32_t storageLevel) {
STsdbKeepCfg *pCfg = REPO_KEEP_CFG(pTsdb);
int32_t daysPerFile = pCfg->days;
if (storageLevel == SMA_STORAGE_LEVEL_TSDB) {
int32_t days = SMA_STORAGE_TSDB_TIMES * (interval / tsTickPerMin[pCfg->precision]);
daysPerFile = days > SMA_STORAGE_TSDB_DAYS ? days : SMA_STORAGE_TSDB_DAYS;
}
return daysPerFile;
}
static int tsdbSmaBeginCommit(SSmaEnv *pEnv) {
TXN *pTxn = &pEnv->txn;
// start a new txn
tdbTxnOpen(pTxn, 0, poolMalloc, poolFree, pEnv->pPool, TDB_TXN_WRITE | TDB_TXN_READ_UNCOMMITTED);
if (tdbBegin(pEnv->dbEnv, pTxn) != 0) {
tsdbWarn("tsdbSma tdb begin commit fail");
return -1;
}
return 0;
}
static int tsdbSmaEndCommit(SSmaEnv *pEnv) {
TXN *pTxn = &pEnv->txn;
// Commit current txn
if (tdbCommit(pEnv->dbEnv, pTxn) != 0) {
tsdbWarn("tsdbSma tdb end commit fail");
return -1;
}
tdbTxnClose(pTxn);
clearPool(pEnv->pPool);
return 0;
}
/**
* @brief Insert/Update Time-range-wise SMA data.
* - If interval < SMA_STORAGE_SPLIT_HOURS(e.g. 24), save the SMA data as a part of DFileSet to e.g.
* v3f1900.tsma.${sma_index_name}. The days is the same with that for TS data files.
* - If interval >= SMA_STORAGE_SPLIT_HOURS, save the SMA data to e.g. vnode3/tsma/v3f632.tsma.${sma_index_name}. The
* days is 30 times of the interval, and the minimum days is SMA_STORAGE_TSDB_DAYS(30d).
* - The destination file of one data block for some interval is determined by its start TS key.
*
* @param pTsdb
* @param msg
* @return int32_t
*/
static int32_t tsdbInsertTSmaDataImpl(STsdb *pTsdb, int64_t indexUid, const char *msg) {
STsdbCfg *pCfg = REPO_CFG(pTsdb);
const SArray *pDataBlocks = (const SArray *)msg;
// TODO: destroy SSDataBlocks(msg)
// For super table aggregation, the sma data is stored in vgroup calculated from the hash value of stable name. Thus
// the sma data would arrive ahead of the update-expired-window msg.
if (tsdbCheckAndInitSmaEnv(pTsdb, TSDB_SMA_TYPE_TIME_RANGE) != TSDB_CODE_SUCCESS) {
terrno = TSDB_CODE_TDB_INIT_FAILED;
return TSDB_CODE_FAILED;
}
if (!pDataBlocks) {
terrno = TSDB_CODE_INVALID_PTR;
tsdbWarn("vgId:%d insert tSma data failed since pDataBlocks is NULL", REPO_ID(pTsdb));
return terrno;
}
if (taosArrayGetSize(pDataBlocks) <= 0) {
terrno = TSDB_CODE_INVALID_PARA;
tsdbWarn("vgId:%d insert tSma data failed since pDataBlocks is empty", REPO_ID(pTsdb));
return TSDB_CODE_FAILED;
}
SSmaEnv *pEnv = REPO_TSMA_ENV(pTsdb);
SSmaStat *pStat = SMA_ENV_STAT(pEnv);
SSmaStatItem *pItem = NULL;
tsdbRefSmaStat(pTsdb, pStat);
if (pStat && SMA_STAT_ITEMS(pStat)) {
pItem = taosHashGet(SMA_STAT_ITEMS(pStat), &indexUid, sizeof(indexUid));
}
if (!pItem || !(pItem = *(SSmaStatItem **)pItem) || tsdbSmaStatIsDropped(pItem)) {
terrno = TSDB_CODE_TDB_INVALID_SMA_STAT;
tsdbUnRefSmaStat(pTsdb, pStat);
return TSDB_CODE_FAILED;
}
STSma *pSma = pItem->pSma;
STSmaWriteH tSmaH = {0};
if (tsdbInitTSmaWriteH(&tSmaH, pTsdb, pDataBlocks, pSma->interval, pSma->intervalUnit) != 0) {
return TSDB_CODE_FAILED;
}
char rPath[TSDB_FILENAME_LEN] = {0};
char aPath[TSDB_FILENAME_LEN] = {0};
snprintf(rPath, TSDB_FILENAME_LEN, "%s%s%" PRIi64, SMA_ENV_PATH(pEnv), TD_DIRSEP, indexUid);
tfsAbsoluteName(REPO_TFS(pTsdb), SMA_ENV_DID(pEnv), rPath, aPath);
if (!taosCheckExistFile(aPath)) {
if (tfsMkdirRecurAt(REPO_TFS(pTsdb), rPath, SMA_ENV_DID(pEnv)) != TSDB_CODE_SUCCESS) {
tsdbUnRefSmaStat(pTsdb, pStat);
return TSDB_CODE_FAILED;
}
}
// Step 1: Judge the storage level and days
int32_t storageLevel = tsdbGetSmaStorageLevel(pSma->interval, pSma->intervalUnit);
int32_t daysPerFile = tsdbGetTSmaDays(pTsdb, tSmaH.interval, storageLevel);
char smaKey[SMA_KEY_LEN] = {0}; // key: skey + groupId
char dataBuf[512] = {0}; // val: aggr data // TODO: handle 512 buffer?
void *pDataBuf = NULL;
int32_t sz = taosArrayGetSize(pDataBlocks);
for (int32_t i = 0; i < sz; ++i) {
SSDataBlock *pDataBlock = taosArrayGet(pDataBlocks, i);
int32_t colNum = pDataBlock->info.numOfCols;
int32_t rows = pDataBlock->info.rows;
int32_t rowSize = pDataBlock->info.rowSize;
int64_t groupId = pDataBlock->info.groupId;
for (int32_t j = 0; j < rows; ++j) {
printf("|");
TSKEY skey = TSKEY_INITIAL_VAL; // the start key of TS window by interval
void *pSmaKey = &smaKey;
bool isStartKey = false;
int32_t tlen = 0; // reset the len
pDataBuf = &dataBuf; // reset the buf
for (int32_t k = 0; k < colNum; ++k) {
SColumnInfoData *pColInfoData = taosArrayGet(pDataBlock->pDataBlock, k);
void *var = POINTER_SHIFT(pColInfoData->pData, j * pColInfoData->info.bytes);
switch (pColInfoData->info.type) {
case TSDB_DATA_TYPE_TIMESTAMP:
if (!isStartKey) {
isStartKey = true;
skey = *(TSKEY *)var;
printf("= skey %" PRIi64 " groupId = %" PRIi64 "|", skey, groupId);
tsdbEncodeTSmaKey(groupId, skey, &pSmaKey);
} else {
printf(" %" PRIi64 " |", *(int64_t *)var);
tlen += taosEncodeFixedI64(&pDataBuf, *(int64_t *)var);
break;
}
break;
case TSDB_DATA_TYPE_BOOL:
case TSDB_DATA_TYPE_UTINYINT:
printf(" %15d |", *(uint8_t *)var);
tlen += taosEncodeFixedU8(&pDataBuf, *(uint8_t *)var);
break;
case TSDB_DATA_TYPE_TINYINT:
printf(" %15d |", *(int8_t *)var);
tlen += taosEncodeFixedI8(&pDataBuf, *(int8_t *)var);
break;
case TSDB_DATA_TYPE_SMALLINT:
printf(" %15d |", *(int16_t *)var);
tlen += taosEncodeFixedI16(&pDataBuf, *(int16_t *)var);
break;
case TSDB_DATA_TYPE_USMALLINT:
printf(" %15d |", *(uint16_t *)var);
tlen += taosEncodeFixedU16(&pDataBuf, *(uint16_t *)var);
break;
case TSDB_DATA_TYPE_INT:
printf(" %15d |", *(int32_t *)var);
tlen += taosEncodeFixedI32(&pDataBuf, *(int32_t *)var);
break;
case TSDB_DATA_TYPE_FLOAT:
printf(" %15f |", *(float *)var);
tlen += taosEncodeBinary(&pDataBuf, var, sizeof(float));
break;
case TSDB_DATA_TYPE_UINT:
printf(" %15u |", *(uint32_t *)var);
tlen += taosEncodeFixedU32(&pDataBuf, *(uint32_t *)var);
break;
case TSDB_DATA_TYPE_BIGINT:
printf(" %15ld |", *(int64_t *)var);
tlen += taosEncodeFixedI64(&pDataBuf, *(int64_t *)var);
break;
case TSDB_DATA_TYPE_DOUBLE:
printf(" %15lf |", *(double *)var);
tlen += taosEncodeBinary(&pDataBuf, var, sizeof(double));
case TSDB_DATA_TYPE_UBIGINT:
printf(" %15lu |", *(uint64_t *)var);
tlen += taosEncodeFixedU64(&pDataBuf, *(uint64_t *)var);
break;
case TSDB_DATA_TYPE_NCHAR: {
char tmpChar[100] = {0};
strncpy(tmpChar, varDataVal(var), varDataLen(var));
printf(" %s |", tmpChar);
tlen += taosEncodeBinary(&pDataBuf, varDataVal(var), varDataLen(var));
break;
}
case TSDB_DATA_TYPE_VARCHAR: { // TSDB_DATA_TYPE_BINARY
char tmpChar[100] = {0};
strncpy(tmpChar, varDataVal(var), varDataLen(var));
printf(" %s |", tmpChar);
tlen += taosEncodeBinary(&pDataBuf, varDataVal(var), varDataLen(var));
break;
}
case TSDB_DATA_TYPE_VARBINARY:
// TODO: add binary/varbinary
TASSERT(0);
default:
printf("the column type %" PRIi16 " is undefined\n", pColInfoData->info.type);
TASSERT(0);
break;
}
}
// if ((tlen > 0) && (skey != TSKEY_INITIAL_VAL)) {
if (tlen > 0) {
int32_t fid = (int32_t)(TSDB_KEY_FID(skey, daysPerFile, pCfg->precision));
// Step 2: Set the DFile for storage of SMA index, and iterate/split the TSma data and store to B+Tree index
// file
// - Set and open the DFile or the B+Tree file
// TODO: tsdbStartTSmaCommit();
if (fid != tSmaH.dFile.fid) {
if (tSmaH.dFile.fid != TSDB_IVLD_FID) {
tsdbSmaEndCommit(pEnv);
tsdbCloseDBF(&tSmaH.dFile);
}
tsdbSetTSmaDataFile(&tSmaH, indexUid, fid);
if (tsdbOpenDBF(pEnv->dbEnv, &tSmaH.dFile) != 0) {
tsdbWarn("vgId:%d open DB file %s failed since %s", REPO_ID(pTsdb),
tSmaH.dFile.path ? tSmaH.dFile.path : "path is NULL", tstrerror(terrno));
tsdbDestroyTSmaWriteH(&tSmaH);
tsdbUnRefSmaStat(pTsdb, pStat);
return TSDB_CODE_FAILED;
}
tsdbSmaBeginCommit(pEnv);
}
if (tsdbInsertTSmaBlocks(&tSmaH, &smaKey, SMA_KEY_LEN, dataBuf, tlen, &pEnv->txn) != 0) {
tsdbWarn("vgId:%d insert tsma data blocks fail for index %" PRIi64 ", skey %" PRIi64 ", groupId %" PRIi64
" since %s",
REPO_ID(pTsdb), indexUid, skey, groupId, tstrerror(terrno));
tsdbSmaEndCommit(pEnv);
tsdbDestroyTSmaWriteH(&tSmaH);
tsdbUnRefSmaStat(pTsdb, pStat);
return TSDB_CODE_FAILED;
}
tsdbDebug("vgId:%d insert tsma data blocks success for index %" PRIi64 ", skey %" PRIi64 ", groupId %" PRIi64,
REPO_ID(pTsdb), indexUid, skey, groupId);
// TODO:tsdbEndTSmaCommit();
// Step 3: reset the SSmaStat
tsdbResetExpiredWindow(pTsdb, pStat, indexUid, skey);
} else {
tsdbWarn("vgId:%d invalid data skey:%" PRIi64 ", tlen %" PRIi32 " during insert tSma data for %" PRIi64,
REPO_ID(pTsdb), skey, tlen, indexUid);
}
printf("\n");
}
}
tsdbSmaEndCommit(pEnv); // TODO: not commit for every insert
tsdbDestroyTSmaWriteH(&tSmaH);
tsdbUnRefSmaStat(pTsdb, pStat);
return TSDB_CODE_SUCCESS;
}
/**
* @brief Drop tSma data and local cache
* - insert/query reference
* @param pTsdb
* @param msg
* @return int32_t
*/
static int32_t tsdbDropTSmaDataImpl(STsdb *pTsdb, int64_t indexUid) {
SSmaEnv *pEnv = atomic_load_ptr(&REPO_TSMA_ENV(pTsdb));
// clear local cache
if (pEnv) {
tsdbDebug("vgId:%d drop tSma local cache for %" PRIi64, REPO_ID(pTsdb), indexUid);
SSmaStatItem *pItem = taosHashGet(SMA_ENV_STAT_ITEMS(pEnv), &indexUid, sizeof(indexUid));
if ((pItem) || ((pItem = *(SSmaStatItem **)pItem))) {
if (tsdbSmaStatIsDropped(pItem)) {
tsdbDebug("vgId:%d tSma stat is already dropped for %" PRIi64, REPO_ID(pTsdb), indexUid);
return TSDB_CODE_TDB_INVALID_ACTION; // TODO: duplicate drop msg would be intercepted by mnode
}
tsdbWLockSma(pEnv);
if (tsdbSmaStatIsDropped(pItem)) {
tsdbUnLockSma(pEnv);
tsdbDebug("vgId:%d tSma stat is already dropped for %" PRIi64, REPO_ID(pTsdb), indexUid);
return TSDB_CODE_TDB_INVALID_ACTION; // TODO: duplicate drop msg would be intercepted by mnode
}
tsdbSmaStatSetDropped(pItem);
tsdbUnLockSma(pEnv);
int32_t nSleep = 0;
int32_t refVal = INT32_MAX;
while (true) {
if ((refVal = T_REF_VAL_GET(SMA_ENV_STAT(pEnv))) <= 0) {
tsdbDebug("vgId:%d drop index %" PRIi64 " since refVal=%d", REPO_ID(pTsdb), indexUid, refVal);
break;
}
tsdbDebug("vgId:%d wait 1s to drop index %" PRIi64 " since refVal=%d", REPO_ID(pTsdb), indexUid, refVal);
taosSsleep(1);
if (++nSleep > SMA_DROP_EXPIRED_TIME) {
tsdbDebug("vgId:%d drop index %" PRIi64 " after wait %d (refVal=%d)", REPO_ID(pTsdb), indexUid, nSleep,
refVal);
break;
};
}
tsdbFreeSmaStatItem(pItem);
tsdbDebug("vgId:%d getTSmaDataImpl failed since no index %" PRIi64 " in local cache", REPO_ID(pTsdb), indexUid);
}
}
// clear sma data files
// TODO:
return TSDB_CODE_SUCCESS;
}
static int32_t tsdbSetRSmaDataFile(STSmaWriteH *pSmaH, int32_t fid) {
STsdb *pTsdb = pSmaH->pTsdb;
char tSmaFile[TSDB_FILENAME_LEN] = {0};
snprintf(tSmaFile, TSDB_FILENAME_LEN, "v%df%d.rsma", REPO_ID(pTsdb), fid);
pSmaH->dFile.path = strdup(tSmaFile);
return TSDB_CODE_SUCCESS;
}
static int32_t tsdbInsertRSmaDataImpl(STsdb *pTsdb, const char *msg) {
STsdbCfg *pCfg = REPO_CFG(pTsdb);
const SArray *pDataBlocks = (const SArray *)msg;
SSmaEnv *pEnv = atomic_load_ptr(&REPO_RSMA_ENV(pTsdb));
int64_t indexUid = SMA_TEST_INDEX_UID;
if (!pEnv) {
terrno = TSDB_CODE_INVALID_PTR;
tsdbWarn("vgId:%d insert rSma data failed since pTSmaEnv is NULL", REPO_ID(pTsdb));
return terrno;
}
if (!pDataBlocks) {
terrno = TSDB_CODE_INVALID_PTR;
tsdbWarn("vgId:%d insert rSma data failed since pDataBlocks is NULL", REPO_ID(pTsdb));
return terrno;
}
if (taosArrayGetSize(pDataBlocks) <= 0) {
terrno = TSDB_CODE_INVALID_PARA;
tsdbWarn("vgId:%d insert rSma data failed since pDataBlocks is empty", REPO_ID(pTsdb));
return TSDB_CODE_FAILED;
}
SSmaStat *pStat = SMA_ENV_STAT(pEnv);
SSmaStatItem *pItem = NULL;
tsdbRefSmaStat(pTsdb, pStat);
if (pStat && SMA_STAT_ITEMS(pStat)) {
pItem = taosHashGet(SMA_STAT_ITEMS(pStat), &indexUid, sizeof(indexUid));
}
if (!pItem || !(pItem = *(SSmaStatItem **)pItem) || tsdbSmaStatIsDropped(pItem)) {
terrno = TSDB_CODE_TDB_INVALID_SMA_STAT;
tsdbUnRefSmaStat(pTsdb, pStat);
return TSDB_CODE_FAILED;
}
STSma *pSma = pItem->pSma;
STSmaWriteH tSmaH = {0};
if (tsdbInitTSmaWriteH(&tSmaH, pTsdb, pDataBlocks, pSma->interval, pSma->intervalUnit) != 0) {
return TSDB_CODE_FAILED;
}
char rPath[TSDB_FILENAME_LEN] = {0};
char aPath[TSDB_FILENAME_LEN] = {0};
snprintf(rPath, TSDB_FILENAME_LEN, "%s%s%" PRIi64, SMA_ENV_PATH(pEnv), TD_DIRSEP, indexUid);
tfsAbsoluteName(REPO_TFS(pTsdb), SMA_ENV_DID(pEnv), rPath, aPath);
if (!taosCheckExistFile(aPath)) {
if (tfsMkdirRecurAt(REPO_TFS(pTsdb), rPath, SMA_ENV_DID(pEnv)) != TSDB_CODE_SUCCESS) {
return TSDB_CODE_FAILED;
}
}
// Step 1: Judge the storage level and days
int32_t storageLevel = tsdbGetSmaStorageLevel(pSma->interval, pSma->intervalUnit);
int32_t daysPerFile = tsdbGetTSmaDays(pTsdb, tSmaH.interval, storageLevel);
#if 0
int32_t fid = (int32_t)(TSDB_KEY_FID(pData->skey, daysPerFile, pCfg->precision));
// Step 2: Set the DFile for storage of SMA index, and iterate/split the TSma data and store to B+Tree index file
// - Set and open the DFile or the B+Tree file
// TODO: tsdbStartTSmaCommit();
tsdbSetTSmaDataFile(&tSmaH, pData, indexUid, fid);
if (tsdbOpenDBF(pTsdb->pTSmaEnv->dbEnv, &tSmaH.dFile) != 0) {
tsdbWarn("vgId:%d open DB file %s failed since %s", REPO_ID(pTsdb),
tSmaH.dFile.path ? tSmaH.dFile.path : "path is NULL", tstrerror(terrno));
tsdbDestroyTSmaWriteH(&tSmaH);
return TSDB_CODE_FAILED;
}
if (tsdbInsertTSmaDataSection(&tSmaH, pData) != 0) {
tsdbWarn("vgId:%d insert tSma data section failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
tsdbDestroyTSmaWriteH(&tSmaH);
return TSDB_CODE_FAILED;
}
// TODO:tsdbEndTSmaCommit();
// Step 3: reset the SSmaStat
tsdbResetExpiredWindow(pTsdb, SMA_ENV_STAT(pTsdb->pTSmaEnv), pData->indexUid, pData->skey);
#endif
tsdbDestroyTSmaWriteH(&tSmaH);
tsdbUnRefSmaStat(pTsdb, pStat);
return TSDB_CODE_SUCCESS;
}
/**
* @brief
*
* @param pSmaH
* @param pTsdb
* @param interval
* @param intervalUnit
* @return int32_t
*/
static int32_t tsdbInitTSmaReadH(STSmaReadH *pSmaH, STsdb *pTsdb, int64_t interval, int8_t intervalUnit) {
pSmaH->pTsdb = pTsdb;
pSmaH->interval = tsdbGetIntervalByPrecision(interval, intervalUnit, REPO_CFG(pTsdb)->precision, true);
pSmaH->storageLevel = tsdbGetSmaStorageLevel(interval, intervalUnit);
pSmaH->days = tsdbGetTSmaDays(pTsdb, pSmaH->interval, pSmaH->storageLevel);
return TSDB_CODE_SUCCESS;
}
/**
* @brief Init of tSma FS
*
* @param pReadH
* @param indexUid
* @param skey
* @return int32_t
*/
static int32_t tsdbInitTSmaFile(STSmaReadH *pSmaH, int64_t indexUid, TSKEY skey) {
STsdb *pTsdb = pSmaH->pTsdb;
int32_t fid = (int32_t)(TSDB_KEY_FID(skey, pSmaH->days, REPO_CFG(pTsdb)->precision));
char tSmaFile[TSDB_FILENAME_LEN] = {0};
snprintf(tSmaFile, TSDB_FILENAME_LEN, "%" PRIi64 "%sv%df%d.tsma", indexUid, TD_DIRSEP, REPO_ID(pTsdb), fid);
pSmaH->dFile.path = strdup(tSmaFile);
pSmaH->smaFsIter.iter = 0;
pSmaH->smaFsIter.fid = fid;
return TSDB_CODE_SUCCESS;
}
/**
* @brief Set and open tSma file if it has key locates in queryWin.
*
* @param pReadH
* @param param
* @param queryWin
* @return true
* @return false
*/
static bool tsdbSetAndOpenTSmaFile(STSmaReadH *pReadH, TSKEY *queryKey) {
SArray *smaFs = pReadH->pTsdb->fs->cstatus->sf;
int32_t nSmaFs = taosArrayGetSize(smaFs);
tsdbCloseDBF(&pReadH->dFile);
#if 0
while (pReadH->smaFsIter.iter < nSmaFs) {
void *pSmaFile = taosArrayGet(smaFs, pReadH->smaFsIter.iter);
if (pSmaFile) { // match(indexName, queryWindow)
// TODO: select the file by index_name ...
pReadH->dFile = pSmaFile;
++pReadH->smaFsIter.iter;
break;
}
++pReadH->smaFsIter.iter;
}
if (pReadH->pDFile) {
tsdbDebug("vg%d: smaFile %s matched", REPO_ID(pReadH->pTsdb), "[pSmaFile dir]");
return true;
}
#endif
return false;
}
/**
* @brief
*
* @param pTsdb Return the data between queryWin and fill the pData.
* @param pData
* @param indexUid
* @param pQuerySKey
* @param nMaxResult The query invoker should control the nMaxResult need to return to avoid OOM.
* @return int32_t
*/
static int32_t tsdbGetTSmaDataImpl(STsdb *pTsdb, char *pData, int64_t indexUid, TSKEY querySKey, int32_t nMaxResult) {
SSmaEnv *pEnv = atomic_load_ptr(&REPO_TSMA_ENV(pTsdb));
SSmaStat *pStat = NULL;
if (!pEnv) {
terrno = TSDB_CODE_INVALID_PTR;
tsdbWarn("vgId:%d getTSmaDataImpl failed since pTSmaEnv is NULL", REPO_ID(pTsdb));
return TSDB_CODE_FAILED;
}
pStat = SMA_ENV_STAT(pEnv);
tsdbRefSmaStat(pTsdb, pStat);
SSmaStatItem *pItem = taosHashGet(SMA_ENV_STAT_ITEMS(pEnv), &indexUid, sizeof(indexUid));
if (!pItem || !(pItem = *(SSmaStatItem **)pItem)) {
// Normally pItem should not be NULL, mark all windows as expired and notify query module to fetch raw TS data if
// it's NULL.
tsdbUnRefSmaStat(pTsdb, pStat);
terrno = TSDB_CODE_TDB_INVALID_ACTION;
tsdbDebug("vgId:%d getTSmaDataImpl failed since no index %" PRIi64, REPO_ID(pTsdb), indexUid);
return TSDB_CODE_FAILED;
}
#if 0
int32_t nQueryWin = taosArrayGetSize(pQuerySKey);
for (int32_t n = 0; n < nQueryWin; ++n) {
TSKEY skey = taosArrayGet(pQuerySKey, n);
if (taosHashGet(pItem->expiredWindows, &skey, sizeof(TSKEY))) {
// TODO: mark this window as expired.
}
}
#endif
#if 1
int8_t smaStat = 0;
if (!tsdbSmaStatIsOK(pItem, &smaStat)) { // TODO: multiple check for large scale sma query
tsdbUnRefSmaStat(pTsdb, pStat);
terrno = TSDB_CODE_TDB_INVALID_SMA_STAT;
tsdbWarn("vgId:%d getTSmaDataImpl failed from index %" PRIi64 " since %s %" PRIi8, REPO_ID(pTsdb), indexUid,
tstrerror(terrno), smaStat);
return TSDB_CODE_FAILED;
}
if (taosHashGet(pItem->expiredWindows, &querySKey, sizeof(TSKEY))) {
// TODO: mark this window as expired.
tsdbDebug("vgId:%d skey %" PRIi64 " of window exists in expired window for index %" PRIi64, REPO_ID(pTsdb),
querySKey, indexUid);
} else {
tsdbDebug("vgId:%d skey %" PRIi64 " of window not in expired window for index %" PRIi64, REPO_ID(pTsdb), querySKey,
indexUid);
}
STSma *pTSma = pItem->pSma;
#endif
STSmaReadH tReadH = {0};
tsdbInitTSmaReadH(&tReadH, pTsdb, pTSma->interval, pTSma->intervalUnit);
tsdbCloseDBF(&tReadH.dFile);
tsdbUnRefSmaStat(pTsdb, pStat);
tsdbInitTSmaFile(&tReadH, indexUid, querySKey);
if (tsdbOpenDBF(pEnv->dbEnv, &tReadH.dFile) != 0) {
tsdbWarn("vgId:%d open DBF %s failed since %s", REPO_ID(pTsdb), tReadH.dFile.path, tstrerror(terrno));
return TSDB_CODE_FAILED;
}
char smaKey[SMA_KEY_LEN] = {0};
void *pSmaKey = &smaKey;
int64_t queryGroupId = 1;
tsdbEncodeTSmaKey(queryGroupId, querySKey, (void **)&pSmaKey);
tsdbDebug("vgId:%d get sma data from %s: smaKey %" PRIx64 "-%" PRIx64 ", keyLen %d", REPO_ID(pTsdb),
tReadH.dFile.path, *(int64_t *)smaKey, *(int64_t *)POINTER_SHIFT(smaKey, 8), SMA_KEY_LEN);
void *result = NULL;
int32_t valueSize = 0;
if (!(result = tsdbGetSmaDataByKey(&tReadH.dFile, smaKey, SMA_KEY_LEN, &valueSize))) {
tsdbWarn("vgId:%d get sma data failed from smaIndex %" PRIi64 ", smaKey %" PRIx64 "-%" PRIx64 " since %s",
REPO_ID(pTsdb), indexUid, *(int64_t *)smaKey, *(int64_t *)POINTER_SHIFT(smaKey, 8), tstrerror(terrno));
tsdbCloseDBF(&tReadH.dFile);
return TSDB_CODE_FAILED;
}
#ifdef _TEST_SMA_PRINT_DEBUG_LOG_
for (uint32_t v = 0; v < valueSize; v += 8) {
tsdbWarn("vgId:%d get sma data v[%d]=%" PRIi64, REPO_ID(pTsdb), v, *(int64_t *)POINTER_SHIFT(result, v));
}
#endif
taosMemoryFreeClear(result); // TODO: fill the result to output
#if 0
int32_t nResult = 0;
int64_t lastKey = 0;
while (true) {
if (nResult >= nMaxResult) {
break;
}
// set and open the file according to the STSma param
if (tsdbSetAndOpenTSmaFile(&tReadH, queryWin)) {
char bTree[100] = "\0";
while (strncmp(bTree, "has more nodes", 100) == 0) {
if (nResult >= nMaxResult) {
break;
}
// tsdbGetDataFromBTree(bTree, queryWin, lastKey)
// fill the pData
++nResult;
}
}
}
#endif
// read data from file and fill the result
tsdbCloseDBF(&tReadH.dFile);
return TSDB_CODE_SUCCESS;
}
int32_t tsdbCreateTSma(STsdb *pTsdb, char *pMsg) {
SSmaCfg vCreateSmaReq = {0};
if (!tDeserializeSVCreateTSmaReq(pMsg, &vCreateSmaReq)) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
tsdbWarn("vgId:%d tsma create msg received but deserialize failed since %s", REPO_ID(pTsdb), terrstr(terrno));
return -1;
}
tsdbDebug("vgId:%d tsma create msg %s:%" PRIi64 " for table %" PRIi64 " received", REPO_ID(pTsdb),
vCreateSmaReq.tSma.indexName, vCreateSmaReq.tSma.indexUid, vCreateSmaReq.tSma.tableUid);
// record current timezone of server side
vCreateSmaReq.tSma.timezoneInt = tsTimezone;
if (metaCreateTSma(REPO_META(pTsdb), &vCreateSmaReq) < 0) {
// TODO: handle error
tsdbWarn("vgId:%d tsma %s:%" PRIi64 " create failed for table %" PRIi64 " since %s", REPO_ID(pTsdb),
vCreateSmaReq.tSma.indexName, vCreateSmaReq.tSma.indexUid, vCreateSmaReq.tSma.tableUid, terrstr(terrno));
tdDestroyTSma(&vCreateSmaReq.tSma);
return -1;
}
tsdbTSmaAdd(pTsdb, 1);
tdDestroyTSma(&vCreateSmaReq.tSma);
// TODO: return directly or go on follow steps?
return TSDB_CODE_SUCCESS;
}
int32_t tsdbDropTSma(STsdb *pTsdb, char *pMsg) {
SVDropTSmaReq vDropSmaReq = {0};
if (!tDeserializeSVDropTSmaReq(pMsg, &vDropSmaReq)) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
// TODO: send msg to stream computing to drop tSma
// if ((send msg to stream computing) < 0) {
// tdDestroyTSma(&vCreateSmaReq);
// return -1;
// }
//
if (metaDropTSma(REPO_META(pTsdb), vDropSmaReq.indexUid) < 0) {
// TODO: handle error
return -1;
}
if (tsdbDropTSmaData(pTsdb, vDropSmaReq.indexUid) < 0) {
// TODO: handle error
return -1;
}
tsdbTSmaSub(pTsdb, 1);
// TODO: return directly or go on follow steps?
return TSDB_CODE_SUCCESS;
}
/**
* @brief Check and init qTaskInfo_t, only applicable to stable with SRSmaParam.
*
* @param pTsdb
* @param pMeta
* @param pReq
* @return int32_t
*/
int32_t tsdbRegisterRSma(STsdb *pTsdb, SMeta *pMeta, SVCreateStbReq *pReq, SMsgCb *pMsgCb) {
if (!pReq->rollup) {
tsdbDebug("vgId:%d return directly since no rollup for stable %s %" PRIi64, REPO_ID(pTsdb), pReq->name, pReq->suid);
return TSDB_CODE_SUCCESS;
}
SRSmaParam *param = &pReq->pRSmaParam;
if ((param->qmsg1Len == 0) && (param->qmsg2Len == 0)) {
tsdbWarn("vgId:%d no qmsg1/qmsg2 for rollup stable %s %" PRIi64, REPO_ID(pTsdb), pReq->name, pReq->suid);
return TSDB_CODE_SUCCESS;
}
if (tsdbCheckAndInitSmaEnv(pTsdb, TSDB_SMA_TYPE_ROLLUP) != TSDB_CODE_SUCCESS) {
terrno = TSDB_CODE_TDB_INIT_FAILED;
return TSDB_CODE_FAILED;
}
SSmaEnv *pEnv = REPO_RSMA_ENV(pTsdb);
SSmaStat *pStat = SMA_ENV_STAT(pEnv);
SRSmaInfo *pRSmaInfo = NULL;
pRSmaInfo = taosHashGet(SMA_STAT_INFO_HASH(pStat), &pReq->suid, sizeof(tb_uid_t));
if (pRSmaInfo) {
tsdbWarn("vgId:%d rsma info already exists for stb: %s, %" PRIi64, REPO_ID(pTsdb), pReq->name, pReq->suid);
return TSDB_CODE_SUCCESS;
}
pRSmaInfo = (SRSmaInfo *)taosMemoryCalloc(1, sizeof(SRSmaInfo));
if (!pRSmaInfo) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return TSDB_CODE_FAILED;
}
STqReadHandle *pReadHandle = tqInitSubmitMsgScanner(pMeta);
if (!pReadHandle) {
taosMemoryFree(pRSmaInfo);
terrno = TSDB_CODE_OUT_OF_MEMORY;
return TSDB_CODE_FAILED;
}
SReadHandle handle = {
.reader = pReadHandle,
.meta = pMeta,
.pMsgCb = pMsgCb,
};
if (param->qmsg1) {
pRSmaInfo->taskInfo[0] = qCreateStreamExecTaskInfo(param->qmsg1, &handle);
if (!pRSmaInfo->taskInfo[0]) {
taosMemoryFree(pRSmaInfo);
taosMemoryFree(pReadHandle);
return TSDB_CODE_FAILED;
}
}
if (param->qmsg2) {
pRSmaInfo->taskInfo[1] = qCreateStreamExecTaskInfo(param->qmsg2, &handle);
if (!pRSmaInfo->taskInfo[1]) {
taosMemoryFree(pRSmaInfo);
taosMemoryFree(pReadHandle);
return TSDB_CODE_FAILED;
}
}
if (taosHashPut(SMA_STAT_INFO_HASH(pStat), &pReq->suid, sizeof(tb_uid_t), &pRSmaInfo, sizeof(pRSmaInfo)) !=
TSDB_CODE_SUCCESS) {
return TSDB_CODE_FAILED;
} else {
tsdbDebug("vgId:%d register rsma info succeed for suid:%" PRIi64, REPO_ID(pTsdb), pReq->suid);
}
return TSDB_CODE_SUCCESS;
}
/**
* @brief store suid/[uids], prefer to use array and then hash
*
* @param pStore
* @param suid
* @param uid
* @return int32_t
*/
static int32_t tsdbUidStorePut(STbUidStore *pStore, tb_uid_t suid, tb_uid_t *uid) {
// prefer to store suid/uids in array
if ((suid == pStore->suid) || (pStore->suid == 0)) {
if (pStore->suid == 0) {
pStore->suid = suid;
}
if (uid) {
if (!pStore->tbUids) {
if (!(pStore->tbUids = taosArrayInit(1, sizeof(tb_uid_t)))) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return TSDB_CODE_FAILED;
}
}
if (!taosArrayPush(pStore->tbUids, uid)) {
return TSDB_CODE_FAILED;
}
}
} else {
// store other suid/uids in hash when multiple stable/table included in 1 batch of request
if (!pStore->uidHash) {
pStore->uidHash = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_ENTRY_LOCK);
if (!pStore->uidHash) {
return TSDB_CODE_FAILED;
}
}
if (uid) {
SArray *uidArray = taosHashGet(pStore->uidHash, &suid, sizeof(tb_uid_t));
if (uidArray && ((uidArray = *(SArray **)uidArray))) {
taosArrayPush(uidArray, uid);
} else {
SArray *pUidArray = taosArrayInit(1, sizeof(tb_uid_t));
if (!pUidArray) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return TSDB_CODE_FAILED;
}
if (!taosArrayPush(pUidArray, uid)) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return TSDB_CODE_FAILED;
}
if (taosHashPut(pStore->uidHash, &suid, sizeof(suid), &pUidArray, sizeof(pUidArray)) != 0) {
return TSDB_CODE_FAILED;
}
}
} else {
if (taosHashPut(pStore->uidHash, &suid, sizeof(suid), NULL, 0) != 0) {
return TSDB_CODE_FAILED;
}
}
}
return TSDB_CODE_SUCCESS;
}
void tsdbUidStoreDestory(STbUidStore *pStore) {
if (pStore) {
if (pStore->uidHash) {
if (pStore->tbUids) {
// When pStore->tbUids not NULL, the pStore->uidHash has k/v; otherwise pStore->uidHash only has keys.
void *pIter = taosHashIterate(pStore->uidHash, NULL);
while (pIter) {
SArray *arr = *(SArray **)pIter;
taosArrayDestroy(arr);
pIter = taosHashIterate(pStore->uidHash, pIter);
}
}
taosHashCleanup(pStore->uidHash);
}
taosArrayDestroy(pStore->tbUids);
}
}
void *tsdbUidStoreFree(STbUidStore *pStore) {
if (pStore) {
tsdbUidStoreDestory(pStore);
taosMemoryFree(pStore);
}
return NULL;
}
/**
* @brief fetch suid/uids when create child tables of rollup SMA
*
* @param pTsdb
* @param ppStore
* @param suid
* @param uid
* @return int32_t
*/
int32_t tsdbFetchTbUidList(STsdb *pTsdb, STbUidStore **ppStore, tb_uid_t suid, tb_uid_t uid) {
SSmaEnv *pEnv = REPO_RSMA_ENV((STsdb *)pTsdb);
// only applicable to rollup SMA ctables
if (!pEnv) {
return TSDB_CODE_SUCCESS;
}
SSmaStat *pStat = SMA_ENV_STAT(pEnv);
SHashObj *infoHash = NULL;
if (!pStat || !(infoHash = SMA_STAT_INFO_HASH(pStat))) {
terrno = TSDB_CODE_TDB_INVALID_SMA_STAT;
return TSDB_CODE_FAILED;
}
// info cached when create rsma stable and return directly for non-rsma ctables
if (!taosHashGet(infoHash, &suid, sizeof(tb_uid_t))) {
return TSDB_CODE_SUCCESS;
}
ASSERT(ppStore != NULL);
if (!(*ppStore)) {
if (tsdbUidStoreInit(ppStore) != 0) {
return TSDB_CODE_FAILED;
}
}
if (tsdbUidStorePut(*ppStore, suid, &uid) != 0) {
*ppStore = tsdbUidStoreFree(*ppStore);
return TSDB_CODE_FAILED;
}
return TSDB_CODE_SUCCESS;
}
static FORCE_INLINE int32_t tsdbUpdateTbUidListImpl(STsdb *pTsdb, tb_uid_t *suid, SArray *tbUids) {
SSmaEnv *pEnv = REPO_RSMA_ENV(pTsdb);
SSmaStat *pStat = SMA_ENV_STAT(pEnv);
SRSmaInfo *pRSmaInfo = NULL;
if (!suid || !tbUids) {
terrno = TSDB_CODE_INVALID_PTR;
tsdbError("vgId:%d failed to get rsma info for uid:%" PRIi64 " since %s", REPO_ID(pTsdb), *suid, terrstr(terrno));
return TSDB_CODE_FAILED;
}
pRSmaInfo = taosHashGet(SMA_STAT_INFO_HASH(pStat), suid, sizeof(tb_uid_t));
if (!pRSmaInfo || !(pRSmaInfo = *(SRSmaInfo **)pRSmaInfo)) {
tsdbError("vgId:%d failed to get rsma info for uid:%" PRIi64, REPO_ID(pTsdb), *suid);
terrno = TSDB_CODE_TDB_INVALID_SMA_STAT;
return TSDB_CODE_FAILED;
}
if (pRSmaInfo->taskInfo[0] && (qUpdateQualifiedTableId(pRSmaInfo->taskInfo[0], tbUids, true) != 0)) {
tsdbError("vgId:%d update tbUidList failed for uid:%" PRIi64 " since %s", REPO_ID(pTsdb), *suid, terrstr(terrno));
return TSDB_CODE_FAILED;
} else {
tsdbDebug("vgId:%d update tbUidList succeed for qTaskInfo:%p with suid:%" PRIi64 ", uid:%" PRIi64, REPO_ID(pTsdb),
pRSmaInfo->taskInfo[0], *suid, *(int64_t *)taosArrayGet(tbUids, 0));
}
if (pRSmaInfo->taskInfo[1] && (qUpdateQualifiedTableId(pRSmaInfo->taskInfo[1], tbUids, true) != 0)) {
tsdbError("vgId:%d update tbUidList failed for uid:%" PRIi64 " since %s", REPO_ID(pTsdb), *suid, terrstr(terrno));
return TSDB_CODE_FAILED;
} else {
tsdbDebug("vgId:%d update tbUidList succeed for qTaskInfo:%p with suid:%" PRIi64 ", uid:%" PRIi64, REPO_ID(pTsdb),
pRSmaInfo->taskInfo[1], *suid, *(int64_t *)taosArrayGet(tbUids, 0));
}
return TSDB_CODE_SUCCESS;
}
int32_t tsdbUpdateTbUidList(STsdb *pTsdb, STbUidStore *pStore) {
if (!pStore || (taosArrayGetSize(pStore->tbUids) == 0)) {
return TSDB_CODE_SUCCESS;
}
if (tsdbUpdateTbUidListImpl(pTsdb, &pStore->suid, pStore->tbUids) != TSDB_CODE_SUCCESS) {
return TSDB_CODE_FAILED;
}
void *pIter = taosHashIterate(pStore->uidHash, NULL);
while (pIter) {
tb_uid_t *pTbSuid = (tb_uid_t *)taosHashGetKey(pIter, NULL);
SArray *pTbUids = *(SArray **)pIter;
if (tsdbUpdateTbUidListImpl(pTsdb, pTbSuid, pTbUids) != TSDB_CODE_SUCCESS) {
taosHashCancelIterate(pStore->uidHash, pIter);
return TSDB_CODE_FAILED;
}
pIter = taosHashIterate(pStore->uidHash, pIter);
}
return TSDB_CODE_SUCCESS;
}
static int32_t tsdbProcessSubmitReq(STsdb *pTsdb, int64_t version, void *pReq) {
if (!pReq) {
terrno = TSDB_CODE_INVALID_PTR;
return TSDB_CODE_FAILED;
}
SSubmitReq *pSubmitReq = (SSubmitReq *)pReq;
if (tsdbInsertData(pTsdb, version, pSubmitReq, NULL) < 0) {
return TSDB_CODE_FAILED;
}
return TSDB_CODE_SUCCESS;
}
static int32_t tsdbFetchSubmitReqSuids(SSubmitReq *pMsg, STbUidStore *pStore) {
ASSERT(pMsg != NULL);
SSubmitMsgIter msgIter = {0};
SSubmitBlk *pBlock = NULL;
SSubmitBlkIter blkIter = {0};
STSRow *row = NULL;
terrno = TSDB_CODE_SUCCESS;
if (tInitSubmitMsgIter(pMsg, &msgIter) < 0) return -1;
while (true) {
if (tGetSubmitMsgNext(&msgIter, &pBlock) < 0) return -1;
if (!pBlock) break;
tsdbUidStorePut(pStore, msgIter.suid, NULL);
pStore->uid = msgIter.uid; // TODO: remove, just for debugging
}
if (terrno != TSDB_CODE_SUCCESS) return -1;
return 0;
}
static FORCE_INLINE int32_t tsdbExecuteRSmaImpl(STsdb *pTsdb, const void *pMsg, int32_t inputType,
qTaskInfo_t *taskInfo, STSchema *pTSchema, tb_uid_t suid, tb_uid_t uid,
int8_t level) {
SArray *pResult = NULL;
if (!taskInfo) {
tsdbDebug("vgId:%d no qTaskInfo to execute rsma %" PRIi8 " task for suid:%" PRIu64, REPO_ID(pTsdb), level, suid);
return TSDB_CODE_SUCCESS;
}
tsdbDebug("vgId:%d execute rsma %" PRIi8 " task for qTaskInfo:%p suid:%" PRIu64, REPO_ID(pTsdb), level, taskInfo,
suid);
qSetStreamInput(taskInfo, pMsg, inputType, false);
while (1) {
SSDataBlock *output = NULL;
uint64_t ts;
if (qExecTask(taskInfo, &output, &ts) < 0) {
ASSERT(false);
}
if (!output) {
break;
}
if (!pResult) {
pResult = taosArrayInit(0, sizeof(SSDataBlock));
if (!pResult) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return TSDB_CODE_FAILED;
}
}
taosArrayPush(pResult, output);
}
if (taosArrayGetSize(pResult) > 0) {
blockDebugShowData(pResult);
STsdb *sinkTsdb = (level == TSDB_RETENTION_L1 ? pTsdb->pVnode->pRSma1 : pTsdb->pVnode->pRSma2);
SSubmitReq *pReq = NULL;
if (buildSubmitReqFromDataBlock(&pReq, pResult, pTSchema, TD_VID(pTsdb->pVnode), suid) != 0) {
taosArrayDestroy(pResult);
return TSDB_CODE_FAILED;
}
if (tsdbProcessSubmitReq(sinkTsdb, INT64_MAX, pReq) != 0) {
taosArrayDestroy(pResult);
taosMemoryFreeClear(pReq);
return TSDB_CODE_FAILED;
}
taosMemoryFreeClear(pReq);
} else {
tsdbWarn("vgId:%d no rsma % " PRIi8 " data generated since %s", REPO_ID(pTsdb), level, tstrerror(terrno));
}
taosArrayDestroy(pResult);
return TSDB_CODE_SUCCESS;
}
static int32_t tsdbExecuteRSma(STsdb *pTsdb, const void *pMsg, int32_t inputType, tb_uid_t suid, tb_uid_t uid) {
SSmaEnv *pEnv = REPO_RSMA_ENV(pTsdb);
if (!pEnv) {
// only applicable when rsma env exists
return TSDB_CODE_SUCCESS;
}
ASSERT(uid != 0); // TODO: remove later
SSmaStat *pStat = SMA_ENV_STAT(pEnv);
SRSmaInfo *pRSmaInfo = NULL;
pRSmaInfo = taosHashGet(SMA_STAT_INFO_HASH(pStat), &suid, sizeof(tb_uid_t));
if (!pRSmaInfo || !(pRSmaInfo = *(SRSmaInfo **)pRSmaInfo)) {
tsdbDebug("vgId:%d no rsma info for suid:%" PRIu64, REPO_ID(pTsdb), suid);
return TSDB_CODE_SUCCESS;
}
if (!pRSmaInfo->taskInfo[0]) {
tsdbDebug("vgId:%d no rsma qTaskInfo for suid:%" PRIu64, REPO_ID(pTsdb), suid);
return TSDB_CODE_SUCCESS;
}
if (inputType == STREAM_DATA_TYPE_SUBMIT_BLOCK) {
// TODO: use the proper schema instead of 1, and cache STSchema in cache
STSchema *pTSchema = metaGetTbTSchema(pTsdb->pVnode->pMeta, suid, 1);
if (!pTSchema) {
terrno = TSDB_CODE_TDB_IVD_TB_SCHEMA_VERSION;
return TSDB_CODE_FAILED;
}
tsdbExecuteRSmaImpl(pTsdb, pMsg, inputType, pRSmaInfo->taskInfo[0], pTSchema, suid, uid, TSDB_RETENTION_L1);
tsdbExecuteRSmaImpl(pTsdb, pMsg, inputType, pRSmaInfo->taskInfo[1], pTSchema, suid, uid, TSDB_RETENTION_L2);
taosMemoryFree(pTSchema);
}
return TSDB_CODE_SUCCESS;
}
int32_t tsdbTriggerRSma(STsdb *pTsdb, void *pMsg, int32_t inputType) {
SSmaEnv *pEnv = REPO_RSMA_ENV(pTsdb);
if (!pEnv) {
// only applicable when rsma env exists
return TSDB_CODE_SUCCESS;
}
if (inputType == STREAM_DATA_TYPE_SUBMIT_BLOCK) {
STbUidStore uidStore = {0};
tsdbFetchSubmitReqSuids(pMsg, &uidStore);
if (uidStore.suid != 0) {
tsdbExecuteRSma(pTsdb, pMsg, inputType, uidStore.suid, uidStore.uid);
void *pIter = taosHashIterate(uidStore.uidHash, NULL);
while (pIter) {
tb_uid_t *pTbSuid = (tb_uid_t *)taosHashGetKey(pIter, NULL);
tsdbExecuteRSma(pTsdb, pMsg, inputType, *pTbSuid, 0);
pIter = taosHashIterate(uidStore.uidHash, pIter);
}
tsdbUidStoreDestory(&uidStore);
}
}
return TSDB_CODE_SUCCESS;
}
#if 0
/**
* @brief Get the start TS key of the last data block of one interval/sliding.
*
* @param pTsdb
* @param param
* @param result
* @return int32_t
* 1) Return 0 and fill the result if the check procedure is normal;
* 2) Return -1 if error occurs during the check procedure.
*/
int32_t tsdbGetTSmaStatus(STsdb *pTsdb, void *smaIndex, void *result) {
const char *procedure = "";
if (strncmp(procedure, "get the start TS key of the last data block", 100) != 0) {
return -1;
}
// fill the result
return TSDB_CODE_SUCCESS;
}
/**
* @brief Remove the tSma data files related to param between pWin.
*
* @param pTsdb
* @param param
* @param pWin
* @return int32_t
*/
int32_t tsdbRemoveTSmaData(STsdb *pTsdb, void *smaIndex, STimeWindow *pWin) {
// for ("tSmaFiles of param-interval-sliding between pWin") {
// // remove the tSmaFile
// }
return TSDB_CODE_SUCCESS;
}
#endif
// TODO: Who is responsible for resource allocate and release?
int32_t tsdbInsertTSmaData(STsdb *pTsdb, int64_t indexUid, const char *msg) {
int32_t code = TSDB_CODE_SUCCESS;
if ((code = tsdbInsertTSmaDataImpl(pTsdb, indexUid, msg)) < 0) {
tsdbWarn("vgId:%d insert tSma data failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
}
// TODO: destroy SSDataBlocks(msg)
return code;
}
int32_t tsdbUpdateSmaWindow(STsdb *pTsdb, SSubmitReq *pMsg, int64_t version) {
int32_t code = TSDB_CODE_SUCCESS;
if ((code = tsdbUpdateExpiredWindowImpl(pTsdb, pMsg, version)) < 0) {
tsdbWarn("vgId:%d update expired sma window failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
}
return code;
}
int32_t tsdbInsertRSmaData(STsdb *pTsdb, char *msg) {
int32_t code = TSDB_CODE_SUCCESS;
if ((code = tsdbInsertRSmaDataImpl(pTsdb, msg)) < 0) {
tsdbWarn("vgId:%d insert rSma data failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
}
return code;
}
int32_t tsdbGetTSmaData(STsdb *pTsdb, char *pData, int64_t indexUid, TSKEY querySKey, int32_t nMaxResult) {
int32_t code = TSDB_CODE_SUCCESS;
if ((code = tsdbGetTSmaDataImpl(pTsdb, pData, indexUid, querySKey, nMaxResult)) < 0) {
tsdbWarn("vgId:%d get tSma data failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
}
return code;
}
int32_t tsdbDropTSmaData(STsdb *pTsdb, int64_t indexUid) {
int32_t code = TSDB_CODE_SUCCESS;
if ((code = tsdbDropTSmaDataImpl(pTsdb, indexUid)) < 0) {
tsdbWarn("vgId:%d drop tSma data failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
}
return code;
}
\ No newline at end of file
source/dnode/vnode/src/tsdb/tsdbTDBImpl.c 已删除 100644 → 0
浏览文件 @ f42ce55a
/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define ALLOW_FORBID_FUNC
#include "tsdb.h"
int32_t tsdbOpenDBEnv(TDB **ppEnv, const char *path) {
int ret = 0;
if (path == NULL) return -1;
ret = tdbOpen(path, 4096, 256, ppEnv); // use as param
if (ret != 0) {
tsdbError("Failed to create tsdb db env, ret = %d", ret);
return -1;
}
return 0;
}
int32_t tsdbCloseDBEnv(TDB *pEnv) { return tdbClose(pEnv); }
static inline int tsdbSmaKeyCmpr(const void *arg1, int len1, const void *arg2, int len2) {
const SSmaKey *pKey1 = (const SSmaKey *)arg1;
const SSmaKey *pKey2 = (const SSmaKey *)arg2;
ASSERT(len1 == len2 && len1 == sizeof(SSmaKey));
if (pKey1->skey < pKey2->skey) {
return -1;
} else if (pKey1->skey > pKey2->skey) {
return 1;
}
if (pKey1->groupId < pKey2->groupId) {
return -1;
} else if (pKey1->groupId > pKey2->groupId) {
return 1;
}
return 0;
}
static int32_t tsdbOpenDBDb(TTB **ppDB, TDB *pEnv, const char *pFName) {
int ret;
tdb_cmpr_fn_t compFunc;
// Create a database
compFunc = tsdbSmaKeyCmpr;
ret = tdbTbOpen(pFName, -1, -1, compFunc, pEnv, ppDB);
return 0;
}
static int32_t tsdbCloseDBDb(TTB *pDB) { return tdbTbClose(pDB); }
int32_t tsdbOpenDBF(TDB *pEnv, SDBFile *pDBF) {
// TEnv is shared by a group of SDBFile
if (!pEnv || !pDBF) {
terrno = TSDB_CODE_INVALID_PTR;
return -1;
}
// Open DBF
if (tsdbOpenDBDb(&(pDBF->pDB), pEnv, pDBF->path) < 0) {
terrno = TSDB_CODE_TDB_INIT_FAILED;
tsdbCloseDBDb(pDBF->pDB);
return -1;
}
return 0;
}
int32_t tsdbCloseDBF(SDBFile *pDBF) {
int32_t ret = 0;
if (pDBF->pDB) {
ret = tsdbCloseDBDb(pDBF->pDB);
pDBF->pDB = NULL;
}
taosMemoryFreeClear(pDBF->path);
return ret;
}
int32_t tsdbSaveSmaToDB(SDBFile *pDBF, void *pKey, int32_t keyLen, void *pVal, int32_t valLen, TXN *txn) {
int32_t ret;
ret = tdbTbInsert(pDBF->pDB, pKey, keyLen, pVal, valLen, txn);
if (ret < 0) {
tsdbError("Failed to create insert sma data into db, ret = %d", ret);
return -1;
}
return 0;
}
void *tsdbGetSmaDataByKey(SDBFile *pDBF, const void *pKey, int32_t keyLen, int32_t *valLen) {
void *pVal = NULL;
int ret;
ret = tdbTbGet(pDBF->pDB, pKey, keyLen, &pVal, valLen);
if (ret < 0) {
tsdbError("Failed to get sma data from db, ret = %d", ret);
return NULL;
}
ASSERT(*valLen >= 0);
// TODO: lock?
// TODO: Would the key/value be destoryed during return the data?
// TODO: How about the key is updated while value length is changed? The original value buffer would be freed
// automatically?
return pVal;
}
\ No newline at end of file
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