xxq250
/
homework-jianmu
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

Merge pull request #19915 from taosdata/fix/nodisk 

ehn(query): dynamic set the initial buffer size for data block from d…
This commit is contained in:
Haojun Liao 2023-02-10 17:49:46 +08:00 committed by GitHub
parent 19903eb00c c8f1c3b6e4
commit e378668571
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 8 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
source/dnode/vnode/src/tsdb/tsdbRead.c
View File

@ -423,19 +423,6 @@ static STimeWindow updateQueryTimeWindow(STsdb* pTsdb, STimeWindow* pWindow) {
return win;
}
static void limitOutputBufferSize(const SQueryTableDataCond* pCond, int32_t* capacity) {
int32_t rowLen = 0;
for (int32_t i = 0; i < pCond->numOfCols; ++i) {
rowLen += pCond->colList[i].bytes;
}
// make sure the output SSDataBlock size be less than 2MB.
const int32_t TWOMB = 2 * 1024 * 1024;
if ((*capacity) * rowLen > TWOMB) {
(*capacity) = TWOMB / rowLen;
}
}
// init file iterator
static int32_t initFilesetIterator(SFilesetIter* pIter, SArray* aDFileSet, STsdbReader* pReader) {
size_t numOfFileset = taosArrayGetSize(aDFileSet);
@ -618,9 +605,6 @@ static int32_t tsdbReaderCreate(SVnode* pVnode, SQueryTableDataCond* pCond, STsd
goto _end;
}
// todo refactor.
limitOutputBufferSize(pCond, &pReader->capacity);
// allocate buffer in order to load data blocks from file
SBlockLoadSuppInfo* pSup = &pReader->suppInfo;
pSup->pColAgg = taosArrayInit(pCond->numOfCols, sizeof(SColumnDataAgg));
@ -3835,11 +3819,9 @@ int32_t tsdbReaderOpen(SVnode* pVnode, SQueryTableDataCond* pCond, void* pTableL
pCond->twindows.ekey -= 1;
}
int32_t capacity = 0;
if (pResBlock == NULL) {
capacity = 4096;
} else {
capacity = pResBlock->info.capacity;
int32_t capacity = pVnode->config.tsdbCfg.maxRows;
if (pResBlock != NULL) {
blockDataEnsureCapacity(pResBlock, capacity);
}
int32_t code = tsdbReaderCreate(pVnode, pCond, ppReader, capacity, pResBlock, idstr);

6
source/libs/executor/src/scanoperator.c
View File

@ -781,6 +781,10 @@ static SSDataBlock* doTableScan(SOperatorInfo* pOperator) {
if (code != TSDB_CODE_SUCCESS) {
T_LONG_JMP(pTaskInfo->env, code);
}
if (pInfo->pResBlock->info.capacity > pOperator->resultInfo.capacity) {
pOperator->resultInfo.capacity = pInfo->pResBlock->info.capacity;
}
}
SSDataBlock* result = doGroupedTableScan(pOperator);
@ -884,7 +888,7 @@ SOperatorInfo* createTableScanOperatorInfo(STableScanPhysiNode* pTableScanNode,
initResultSizeInfo(&pOperator->resultInfo, 4096);
pInfo->pResBlock = createDataBlockFromDescNode(pDescNode);
blockDataEnsureCapacity(pInfo->pResBlock, pOperator->resultInfo.capacity);
// blockDataEnsureCapacity(pInfo->pResBlock, pOperator->resultInfo.capacity);
code = filterInitFromNode((SNode*)pTableScanNode->scan.node.pConditions, &pOperator->exprSupp.pFilterInfo, 0);
if (code != TSDB_CODE_SUCCESS) {