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39 lines
1.3 KiB
Go
39 lines
1.3 KiB
Go
package segmentutil
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import (
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/proto/datapb"
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"github.com/milvus-io/milvus/pkg/log"
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)
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// ReCalcRowCount re-calculates number of rows of `oldSeg` based on its bin log count, and correct its value in its
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// cloned copy, which is `newSeg`.
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// Note that `segCloned` should be a copied version of `seg`.
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func ReCalcRowCount(seg, segCloned *datapb.SegmentInfo) {
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// `segment` is not mutated but only cloned above and is safe to be referred here.
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if newCount := CalcRowCountFromBinLog(seg); newCount != seg.GetNumOfRows() && newCount > 0 {
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log.Warn("segment row number meta inconsistent with bin log row count and will be corrected",
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zap.Int64("segmentID", seg.GetID()),
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zap.Int64("segment meta row count (wrong)", seg.GetNumOfRows()),
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zap.Int64("segment bin log row count (correct)", newCount))
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// Update the corrected row count.
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segCloned.NumOfRows = newCount
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}
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}
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// CalcRowCountFromBinLog calculates # of rows of a segment from bin logs
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func CalcRowCountFromBinLog(seg *datapb.SegmentInfo) int64 {
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var rowCt int64
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if len(seg.GetBinlogs()) > 0 {
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for _, ct := range seg.GetBinlogs()[0].GetBinlogs() {
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rowCt += ct.GetEntriesNum()
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// This segment contains stale log with incorrect entries num,
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if ct.GetEntriesNum() <= 0 {
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return -1
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}
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}
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}
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return rowCt
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}
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