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TSDB: refine variable naming in chunk gc

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Slight further refactor.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
This commit is contained in:
Bryan Boreham 2023-10-27 22:02:34 +01:00
parent 071d5732af
commit ce4e757704
1 changed files with 7 additions and 11 deletions
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18
tsdb/head.go
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@ -1779,7 +1779,7 @@ func (s *stripeSeries) gc(mint int64, minOOOMmapRef chunks.ChunkDiskMapperRef) (
minMmapFile = math.MaxInt32
// For one series, truncate old chunks and check if any chunks left. If not, mark as deleted and collect the ID.
check := func(i int, hash uint64, series *memSeries, deletedForCallback map[chunks.HeadSeriesRef]labels.Labels) {
check := func(hashShard int, hash uint64, series *memSeries, deletedForCallback map[chunks.HeadSeriesRef]labels.Labels) {
series.Lock()
defer series.Unlock()
@ -1820,20 +1820,16 @@ func (s *stripeSeries) gc(mint int64, minOOOMmapRef chunks.ChunkDiskMapperRef) (
// series alike.
// If we don't hold them all, there's a very small chance that a series receives
// samples again while we are half-way into deleting it.
j := int(series.ref) & (s.size - 1)
if i != j {
s.locks[j].Lock()
refShard := int(series.ref) & (s.size - 1)
if hashShard != refShard {
s.locks[refShard].Lock()
defer s.locks[refShard].Unlock()
}
deleted[storage.SeriesRef(series.ref)] = struct{}{}
s.hashes[i].del(hash, series.lset)
delete(s.series[j], series.ref)
s.hashes[hashShard].del(hash, series.lset)
delete(s.series[refShard], series.ref)
deletedForCallback[series.ref] = series.lset
if i != j {
s.locks[j].Unlock()
}
}
// Run through all series shard by shard, checking which should be deleted.