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set end time of stream queries properly

This commit is contained in:
Bomin Zhang 2020-07-07 15:19:46 +08:00
parent 2fc2feb876
commit 91ced4c107
1 changed files with 56 additions and 51 deletions
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107
src/client/src/tscStream.c
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@ -121,7 +121,20 @@ static void tscProcessStreamTimer(void *handle, void *tmrId) {
pQueryInfo->window.ekey = pStream->etime;
}
} else {
pQueryInfo->window.skey = pStream->stime - pStream->interval;
pQueryInfo->window.skey = pStream->stime;// - pStream->interval;
int64_t etime = taosGetTimestamp(pStream->precision);
// delay to wait all data in last time window
if (pStream->precision == TSDB_TIME_PRECISION_MICRO) {
etime -= tsMaxStreamComputDelay * 1000l;
} else {
etime -= tsMaxStreamComputDelay;
}
if (etime > pStream->etime) {
etime = pStream->etime;
} else {
etime = pStream->stime + (etime - pStream->stime) / pStream->interval * pStream->interval;
}
pQueryInfo->window.ekey = etime;
}
// launch stream computing in a new thread
@ -151,17 +164,45 @@ static void tscProcessStreamQueryCallback(void *param, TAOS_RES *tres, int numOf
taos_fetch_rows_a(tres, tscProcessStreamRetrieveResult, param);
}
static void tscSetTimestampForRes(SSqlStream *pStream, SSqlObj *pSql) {
SSqlRes *pRes = &pSql->res;
int64_t timestamp = *(int64_t *)pRes->data;
int64_t actualTimestamp = pStream->stime - pStream->interval;
if (timestamp != actualTimestamp) {
// reset the timestamp of each agg point by using start time of each interval
*((int64_t *)pRes->data) = actualTimestamp;
tscWarn("%p stream:%p, timestamp of points is:%" PRId64 ", reset to %" PRId64, pSql, pStream, timestamp, actualTimestamp);
// no need to be called as this is alreay done in the query
static void tscStreamFillTimeGap(SSqlStream* pStream, TSKEY ts) {
#if 0
SSqlObj * pSql = pStream->pSql;
SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, 0);
if (pQueryInfo->fillType != TSDB_FILL_SET_VALUE && pQueryInfo->fillType != TSDB_FILL_NULL) {
return;
}
SSqlRes *pRes = &pSql->res;
/* failed to retrieve any result in this retrieve */
pSql->res.numOfRows = 1;
void *row[TSDB_MAX_COLUMNS] = {0};
char tmpRes[TSDB_MAX_BYTES_PER_ROW] = {0};
void *oldPtr = pSql->res.data;
pSql->res.data = tmpRes;
int32_t rowNum = 0;
while (pStream->stime + pStream->slidingTime < ts) {
pStream->stime += pStream->slidingTime;
*(TSKEY*)row[0] = pStream->stime;
for (int32_t i = 1; i < pQueryInfo->fieldsInfo.numOfOutput; ++i) {
int16_t offset = tscFieldInfoGetOffset(pQueryInfo, i);
TAOS_FIELD *pField = tscFieldInfoGetField(&pQueryInfo->fieldsInfo, i);
assignVal(pSql->res.data + offset, (char *)(&pQueryInfo->fillVal[i]), pField->bytes, pField->type);
row[i] = pSql->res.data + offset;
}
(*pStream->fp)(pStream->param, pSql, row);
++rowNum;
}
if (rowNum > 0) {
tscDebug("%p stream:%p %d rows padded", pSql, pStream, rowNum);
}
pRes->numOfRows = 0;
pRes->data = oldPtr;
#endif
}
static void tscProcessStreamRetrieveResult(void *param, TAOS_RES *res, int numOfRows) {
@ -180,10 +221,10 @@ static void tscProcessStreamRetrieveResult(void *param, TAOS_RES *res, int numOf
if (numOfRows > 0) { // when reaching here the first execution of stream computing is successful.
pStream->numOfRes += numOfRows;
for(int32_t i = 0; i < numOfRows; ++i) {
TAOS_ROW row = taos_fetch_row(res);
tscDebug("%p stream:%p fetch result", pSql, pStream);
tscStreamFillTimeGap(pStream, *(TSKEY*)row[0]);
pStream->stime = *(TSKEY *)row[0];
// user callback function
@ -194,40 +235,8 @@ static void tscProcessStreamRetrieveResult(void *param, TAOS_RES *res, int numOf
taos_fetch_rows_a(res, tscProcessStreamRetrieveResult, pStream);
} else { // numOfRows == 0, all data has been retrieved
pStream->useconds += pSql->res.useconds;
SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, 0);
if (pStream->numOfRes == 0) {
if (pQueryInfo->fillType == TSDB_FILL_SET_VALUE || pQueryInfo->fillType == TSDB_FILL_NULL) {
SSqlRes *pRes = &pSql->res;
/* failed to retrieve any result in this retrieve */
pSql->res.numOfRows = 1;
void *row[TSDB_MAX_COLUMNS] = {0};
char tmpRes[TSDB_MAX_BYTES_PER_ROW] = {0};
void *oldPtr = pSql->res.data;
pSql->res.data = tmpRes;
for (int32_t i = 1; i < pQueryInfo->fieldsInfo.numOfOutput; ++i) {
int16_t offset = tscFieldInfoGetOffset(pQueryInfo, i);
TAOS_FIELD *pField = tscFieldInfoGetField(&pQueryInfo->fieldsInfo, i);
assignVal(pSql->res.data + offset, (char *)(&pQueryInfo->fillVal[i]), pField->bytes, pField->type);
row[i] = pSql->res.data + offset;
}
tscSetTimestampForRes(pStream, pSql);
row[0] = pRes->data;
tscDebug("%p stream:%p fetch result", pSql, pStream);
// user callback function
(*pStream->fp)(pStream->param, res, row);
pRes->numOfRows = 0;
pRes->data = oldPtr;
} else if (pStream->isProject) {
if (pStream->isProject) {
/* no resuls in the query range, retry */
// todo set retry dynamic time
int32_t retry = tsProjectExecInterval;
@ -236,10 +245,8 @@ static void tscProcessStreamRetrieveResult(void *param, TAOS_RES *res, int numOf
tscSetRetryTimer(pStream, pStream->pSql, retry);
return;
}
} else {
if (pStream->isProject) {
pStream->stime += 1;
}
} else if (pStream->isProject) {
pStream->stime += 1;
}
tscDebug("%p stream:%p, query on:%s, fetch result completed, fetched rows:%" PRId64, pSql, pStream, pTableMetaInfo->name,
@ -421,8 +428,6 @@ static int64_t tscGetStreamStartTimestamp(SSqlObj *pSql, SSqlStream *pStream, in
} else { // timewindow based aggregation stream
if (stime == 0) { // no data in meter till now
stime = ((int64_t)taosGetTimestamp(pStream->precision) / pStream->interval) * pStream->interval;
const char* fmtts(int64_t);
printf("stream start time is: %s\n", fmtts(stime));
tscWarn("%p stream:%p, last timestamp:0, reset to:%" PRId64, pSql, pStream, stime);
} else {
int64_t newStime = (stime / pStream->interval) * pStream->interval;