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fix: Change deltalog memory estimation factor to one (#36033)

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See also: #36031

Signed-off-by: yangxuan <xuan.yang@zilliz.com>
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XuanYang-cn 2024-09-06 18:21:05 +08:00 committed by GitHub
parent a103dd5eb3
commit 7859faf8ea
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1 changed files with 12 additions and 1 deletions
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13
internal/querynodev2/segments/segment_loader.go
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@ -1275,7 +1275,18 @@ func getResourceUsageEstimateOfSegment(schema *schemapb.CollectionSchema, loadIn
// get size of delete data
for _, fieldBinlog := range loadInfo.Deltalogs {
segmentMemorySize += uint64(float64(getBinlogDataMemorySize(fieldBinlog)) * multiplyFactor.deltaDataExpansionFactor)
// MemorySize of filedBinlog is the actual size in memory, so the expansionFactor
// should be 1, in most cases.
expansionFactor := float64(1)
memSize := getBinlogDataMemorySize(fieldBinlog)
// Note: If MemorySize == DiskSize, it means the segment comes from Milvus 2.3,
// MemorySize is actually compressed DiskSize of deltalog, so we'll fallback to use
// deltaExpansionFactor to compromise the compression ratio.
if memSize == getBinlogDataDiskSize(fieldBinlog) {
expansionFactor = multiplyFactor.deltaDataExpansionFactor
}
segmentMemorySize += uint64(float64(memSize) * expansionFactor)
}
return &ResourceUsage{
MemorySize: segmentMemorySize + indexMemorySize,