mirror of
https://github.com/prometheus/prometheus.git
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Merge pull request #14455 from bboreham/merge-2.53.1
Merge 2.53.1 into main
This commit is contained in:
Bryan Boreham
GitHub
commit
9d744deea3
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@ -2,6 +2,14 @@
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## unreleased
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## 2.53.1 / 2024-07-10
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Fix a bug which would drop samples in remote-write if the sending flow stalled
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for longer than it takes to write one "WAL segment". How long this takes depends on the size
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of your Prometheus; as a rough guide with 10 million series it is about 2-3 minutes.
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* [BUGFIX] Remote-write: stop dropping samples in catch-up #14446
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## 2.53.0 / 2024-06-16
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This release changes the default for GOGC, the Go runtime control for the trade-off between excess memory use and CPU usage. We have found that Prometheus operates with minimal additional CPU usage, but greatly reduced memory by adjusting the upstream Go default from 100 to 75.
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@ -265,6 +265,11 @@ func (w *Watcher) loop() {
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// Run the watcher, which will tail the WAL until the quit channel is closed
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// or an error case is hit.
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func (w *Watcher) Run() error {
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_, lastSegment, err := w.firstAndLast()
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if err != nil {
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return fmt.Errorf("wal.Segments: %w", err)
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}
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// We want to ensure this is false across iterations since
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// Run will be called again if there was a failure to read the WAL.
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w.sendSamples = false
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@ -289,20 +294,14 @@ func (w *Watcher) Run() error {
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return err
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}
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level.Debug(w.logger).Log("msg", "Tailing WAL", "lastCheckpoint", lastCheckpoint, "checkpointIndex", checkpointIndex, "currentSegment", currentSegment)
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level.Debug(w.logger).Log("msg", "Tailing WAL", "lastCheckpoint", lastCheckpoint, "checkpointIndex", checkpointIndex, "currentSegment", currentSegment, "lastSegment", lastSegment)
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for !isClosed(w.quit) {
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w.currentSegmentMetric.Set(float64(currentSegment))
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// Re-check on each iteration in case a new segment was added,
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// because watch() will wait for notifications on the last segment.
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_, lastSegment, err := w.firstAndLast()
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if err != nil {
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return fmt.Errorf("wal.Segments: %w", err)
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}
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tail := currentSegment >= lastSegment
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level.Debug(w.logger).Log("msg", "Processing segment", "currentSegment", currentSegment, "lastSegment", lastSegment)
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if err := w.watch(currentSegment, tail); err != nil && !errors.Is(err, ErrIgnorable) {
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// On start, after reading the existing WAL for series records, we have a pointer to what is the latest segment.
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// On subsequent calls to this function, currentSegment will have been incremented and we should open that segment.
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level.Debug(w.logger).Log("msg", "Processing segment", "currentSegment", currentSegment)
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if err := w.watch(currentSegment, currentSegment >= lastSegment); err != nil && !errors.Is(err, ErrIgnorable) {
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return err
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}
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@ -17,6 +17,7 @@ import (
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"math/rand"
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"os"
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"path"
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"runtime"
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"sync"
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"testing"
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"time"
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@ -700,11 +701,46 @@ func TestRun_StartupTime(t *testing.T) {
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}
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}
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func generateWALRecords(w *WL, segment, seriesCount, samplesCount int) error {
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enc := record.Encoder{}
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for j := 0; j < seriesCount; j++ {
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ref := j + (segment * 100)
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series := enc.Series([]record.RefSeries{
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{
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Ref: chunks.HeadSeriesRef(ref),
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Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", segment)),
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},
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}, nil)
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if err := w.Log(series); err != nil {
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return err
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}
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for k := 0; k < samplesCount; k++ {
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inner := rand.Intn(ref + 1)
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sample := enc.Samples([]record.RefSample{
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{
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Ref: chunks.HeadSeriesRef(inner),
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T: int64(segment),
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V: float64(segment),
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},
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}, nil)
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if err := w.Log(sample); err != nil {
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return err
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}
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}
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}
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return nil
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}
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func TestRun_AvoidNotifyWhenBehind(t *testing.T) {
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const pageSize = 32 * 1024
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const segments = 10
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const seriesCount = 20
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const samplesCount = 300
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if runtime.GOOS == "windows" { // Takes a really long time, perhaps because min sleep time is 15ms.
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t.SkipNow()
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}
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const segmentSize = pageSize // Smallest allowed segment size.
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const segmentsToWrite = 5
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const segmentsToRead = segmentsToWrite - 1
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const seriesCount = 10
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const samplesCount = 50
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// This test can take longer than intended to finish in cloud CI.
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readTimeout := 10 * time.Second
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@ -717,73 +753,37 @@ func TestRun_AvoidNotifyWhenBehind(t *testing.T) {
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err := os.Mkdir(wdir, 0o777)
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require.NoError(t, err)
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enc := record.Encoder{}
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w, err := NewSize(nil, nil, wdir, pageSize, compress)
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w, err := NewSize(nil, nil, wdir, segmentSize, compress)
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require.NoError(t, err)
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var wg sync.WaitGroup
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// add one segment initially to ensure there's a value > 0 for the last segment id
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for i := 0; i < 1; i++ {
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for j := 0; j < seriesCount; j++ {
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ref := j + (i * 100)
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series := enc.Series([]record.RefSeries{
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{
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Ref: chunks.HeadSeriesRef(ref),
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Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
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},
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}, nil)
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require.NoError(t, w.Log(series))
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for k := 0; k < samplesCount; k++ {
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inner := rand.Intn(ref + 1)
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sample := enc.Samples([]record.RefSample{
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{
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Ref: chunks.HeadSeriesRef(inner),
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T: int64(i),
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V: float64(i),
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},
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}, nil)
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require.NoError(t, w.Log(sample))
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}
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}
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}
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// Generate one segment initially to ensure that watcher.Run() finds at least one segment on disk.
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require.NoError(t, generateWALRecords(w, 0, seriesCount, samplesCount))
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w.NextSegment() // Force creation of the next segment
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wg.Add(1)
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go func() {
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defer wg.Done()
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for i := 1; i < segments; i++ {
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for j := 0; j < seriesCount; j++ {
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ref := j + (i * 100)
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series := enc.Series([]record.RefSeries{
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{
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Ref: chunks.HeadSeriesRef(ref),
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Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
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},
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}, nil)
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require.NoError(t, w.Log(series))
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for k := 0; k < samplesCount; k++ {
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inner := rand.Intn(ref + 1)
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sample := enc.Samples([]record.RefSample{
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{
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Ref: chunks.HeadSeriesRef(inner),
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T: int64(i),
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V: float64(i),
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},
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}, nil)
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require.NoError(t, w.Log(sample))
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}
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}
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for i := 1; i < segmentsToWrite; i++ {
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require.NoError(t, generateWALRecords(w, i, seriesCount, samplesCount))
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w.NextSegment()
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}
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}()
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wt := newWriteToMock(time.Millisecond)
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watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false, false)
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watcher.MaxSegment = segments
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watcher.MaxSegment = segmentsToRead
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watcher.setMetrics()
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startTime := time.Now()
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err = watcher.Run()
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wg.Wait()
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require.Less(t, time.Since(startTime), readTimeout)
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// But samples records shouldn't get dropped
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retry(t, defaultRetryInterval, defaultRetries, func() bool {
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return wt.checkNumSeries() > 0
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})
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require.Equal(t, segmentsToRead*seriesCount*samplesCount, wt.samplesAppended)
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require.NoError(t, err)
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require.NoError(t, w.Close())
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})
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@ -1,6 +1,6 @@
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{
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"name": "@prometheus-io/codemirror-promql",
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"version": "0.53.0",
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"version": "0.53.1",
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"description": "a CodeMirror mode for the PromQL language",
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"types": "dist/esm/index.d.ts",
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"module": "dist/esm/index.js",
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@ -29,7 +29,7 @@
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},
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"homepage": "https://github.com/prometheus/prometheus/blob/main/web/ui/module/codemirror-promql/README.md",
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"dependencies": {
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"@prometheus-io/lezer-promql": "0.53.0",
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"@prometheus-io/lezer-promql": "0.53.1",
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"lru-cache": "^7.18.3"
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},
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"devDependencies": {
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@ -1,6 +1,6 @@
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{
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"name": "@prometheus-io/lezer-promql",
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"version": "0.53.0",
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"version": "0.53.1",
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"description": "lezer-based PromQL grammar",
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"main": "dist/index.cjs",
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"type": "module",
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14
web/ui/package-lock.json
generated
14
web/ui/package-lock.json
generated
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@ -1,12 +1,12 @@
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{
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"name": "prometheus-io",
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"version": "0.53.0",
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"version": "0.53.1",
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"lockfileVersion": 3,
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"requires": true,
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"packages": {
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"": {
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"name": "prometheus-io",
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"version": "0.53.0",
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"version": "0.53.1",
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"workspaces": [
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"react-app",
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"module/*"
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@ -30,10 +30,10 @@
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},
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"module/codemirror-promql": {
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"name": "@prometheus-io/codemirror-promql",
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"version": "0.53.0",
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"version": "0.53.1",
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"license": "Apache-2.0",
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"dependencies": {
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"@prometheus-io/lezer-promql": "0.53.0",
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"@prometheus-io/lezer-promql": "0.53.1",
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"lru-cache": "^7.18.3"
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},
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"devDependencies": {
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@ -69,7 +69,7 @@
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},
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"module/lezer-promql": {
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"name": "@prometheus-io/lezer-promql",
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"version": "0.53.0",
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"version": "0.53.1",
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"license": "Apache-2.0",
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"devDependencies": {
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"@lezer/generator": "^1.7.0",
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@ -19331,7 +19331,7 @@
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},
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"react-app": {
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"name": "@prometheus-io/app",
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"version": "0.53.0",
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"version": "0.53.1",
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"dependencies": {
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"@codemirror/autocomplete": "^6.16.2",
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"@codemirror/commands": "^6.6.0",
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@ -19349,7 +19349,7 @@
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"@lezer/lr": "^1.4.1",
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"@nexucis/fuzzy": "^0.4.1",
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"@nexucis/kvsearch": "^0.8.1",
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"@prometheus-io/codemirror-promql": "0.53.0",
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"@prometheus-io/codemirror-promql": "0.53.1",
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"bootstrap": "^4.6.2",
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"css.escape": "^1.5.1",
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"downshift": "^9.0.6",
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@ -28,5 +28,5 @@
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"ts-jest": "^29.1.4",
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"typescript": "^4.9.5"
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},
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"version": "0.53.0"
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"version": "0.53.1"
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}
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@ -1,6 +1,6 @@
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{
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"name": "@prometheus-io/app",
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"version": "0.53.0",
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"version": "0.53.1",
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"private": true,
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"dependencies": {
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"@codemirror/autocomplete": "^6.16.2",
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@ -19,7 +19,7 @@
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"@lezer/lr": "^1.4.1",
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"@nexucis/fuzzy": "^0.4.1",
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"@nexucis/kvsearch": "^0.8.1",
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"@prometheus-io/codemirror-promql": "0.53.0",
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"@prometheus-io/codemirror-promql": "0.53.1",
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"bootstrap": "^4.6.2",
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"css.escape": "^1.5.1",
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"downshift": "^9.0.6",
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