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Store the checkpoint we read last, so that we don't keep reading the same checkpoint on each tick.

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Signed-off-by: Callum Styan <callumstyan@gmail.com>
This commit is contained in:
Callum Styan 2019-02-18 22:46:52 -08:00 committed by Tom Wilkie
parent efbd9559f4
commit b69bdfb4d1
1 changed files with 8 additions and 5 deletions
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13
storage/remote/wal_watcher.go
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@ -95,10 +95,11 @@ type writeTo interface {
// WALWatcher watches the TSDB WAL for a given WriteTo. // WALWatcher watches the TSDB WAL for a given WriteTo.
type WALWatcher struct { type WALWatcher struct {
name string name string
writer writeTo writer writeTo
logger log.Logger logger log.Logger
walDir string walDir string
lastCheckpoint string
startTime int64 startTime int64
@ -183,6 +184,7 @@ func (w *WALWatcher) run() error {
return errors.Wrap(err, "readCheckpoint") return errors.Wrap(err, "readCheckpoint")
} }
} }
w.lastCheckpoint = lastCheckpoint
currentSegment, err := w.findSegmentForIndex(nextIndex) currentSegment, err := w.findSegmentForIndex(nextIndex)
if err != nil { if err != nil {
@ -342,9 +344,10 @@ func (w *WALWatcher) garbageCollectSeries(segmentNum int) error {
return errors.Wrap(err, "tsdb.LastCheckpoint") return errors.Wrap(err, "tsdb.LastCheckpoint")
} }
if dir == "" { if dir == "" || dir == w.lastCheckpoint {
return nil return nil
} }
w.lastCheckpoint = dir
index, err := checkpointNum(dir) index, err := checkpointNum(dir)
if err != nil { if err != nil {