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Fix race condition when updating lastSeriesID during loading chunk snapshot (#11099)

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Signed-off-by: Xiaochao Dong (@damnever) <the.xcdong@gmail.com>
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Xiaochao Dong 2022-08-04 16:09:14 +08:00 committed by GitHub
parent 4035b38c59
commit 1078081aec
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1 changed files with 6 additions and 2 deletions
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8
tsdb/head_wal.go
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@ -921,8 +921,12 @@ func (h *Head) loadChunkSnapshot() (int, int, map[chunks.HeadSeriesRef]*memSerie
return return
} }
localRefSeries[csr.ref] = series localRefSeries[csr.ref] = series
if chunks.HeadSeriesRef(h.lastSeriesID.Load()) < series.ref { for {
h.lastSeriesID.Store(uint64(series.ref)) seriesID := uint64(series.ref)
lastSeriesID := h.lastSeriesID.Load()
if lastSeriesID >= seriesID || h.lastSeriesID.CAS(lastSeriesID, seriesID) {
break
}
} }
series.chunkRange = csr.chunkRange series.chunkRange = csr.chunkRange