mirror of
https://github.com/prometheus/prometheus.git
synced 2024-09-21 16:27:32 -07:00
ebf5d74325
Added methods needed to retain data based on a byte limitation rather than time. Limitation is only applied if the flag is set (defaults to 0). Both blocks that are older than the retention period and the blocks that make the size of the storage too large are removed. 2 new metrics for keeping track of the size of the local storage folder and the amount of times data has been deleted because the size restriction was exceeded. Signed-off-by: Mark Knapp <mknapp@hudson-trading.com>
147 lines
3.3 KiB
Go
147 lines
3.3 KiB
Go
// Copyright 2017 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tsdb
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import (
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"io/ioutil"
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"math/rand"
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"os"
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"sync"
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"testing"
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"time"
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"github.com/prometheus/tsdb/testutil"
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)
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func TestWriteAndReadbackTombStones(t *testing.T) {
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tmpdir, _ := ioutil.TempDir("", "test")
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defer os.RemoveAll(tmpdir)
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ref := uint64(0)
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stones := newMemTombstones()
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// Generate the tombstones.
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for i := 0; i < 100; i++ {
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ref += uint64(rand.Int31n(10)) + 1
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numRanges := rand.Intn(5) + 1
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dranges := make(Intervals, 0, numRanges)
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mint := rand.Int63n(time.Now().UnixNano())
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for j := 0; j < numRanges; j++ {
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dranges = dranges.add(Interval{mint, mint + rand.Int63n(1000)})
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mint += rand.Int63n(1000) + 1
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}
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stones.addInterval(ref, dranges...)
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}
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testutil.Ok(t, writeTombstoneFile(tmpdir, stones))
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restr, _, err := readTombstones(tmpdir)
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testutil.Ok(t, err)
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// Compare the two readers.
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testutil.Equals(t, stones, restr)
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}
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func TestAddingNewIntervals(t *testing.T) {
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cases := []struct {
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exist Intervals
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new Interval
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exp Intervals
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}{
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{
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new: Interval{1, 2},
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exp: Intervals{{1, 2}},
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},
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{
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exist: Intervals{{1, 2}},
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new: Interval{1, 2},
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exp: Intervals{{1, 2}},
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},
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{
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exist: Intervals{{1, 4}, {6, 6}},
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new: Interval{5, 6},
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exp: Intervals{{1, 6}},
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},
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{
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exist: Intervals{{1, 10}, {12, 20}, {25, 30}},
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new: Interval{21, 23},
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exp: Intervals{{1, 10}, {12, 23}, {25, 30}},
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},
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{
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exist: Intervals{{1, 2}, {3, 5}, {7, 7}},
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new: Interval{6, 7},
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exp: Intervals{{1, 2}, {3, 7}},
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},
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{
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exist: Intervals{{1, 10}, {12, 20}, {25, 30}},
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new: Interval{21, 25},
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exp: Intervals{{1, 10}, {12, 30}},
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},
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{
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exist: Intervals{{1, 10}, {12, 20}, {25, 30}},
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new: Interval{18, 23},
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exp: Intervals{{1, 10}, {12, 23}, {25, 30}},
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},
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{
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exist: Intervals{{1, 10}, {12, 20}, {25, 30}},
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new: Interval{9, 23},
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exp: Intervals{{1, 23}, {25, 30}},
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},
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{
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exist: Intervals{{1, 10}, {12, 20}, {25, 30}},
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new: Interval{9, 230},
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exp: Intervals{{1, 230}},
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},
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{
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exist: Intervals{{5, 10}, {12, 20}, {25, 30}},
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new: Interval{1, 4},
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exp: Intervals{{1, 10}, {12, 20}, {25, 30}},
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},
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{
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exist: Intervals{{5, 10}, {12, 20}, {25, 30}},
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new: Interval{11, 14},
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exp: Intervals{{5, 20}, {25, 30}},
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},
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}
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for _, c := range cases {
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testutil.Equals(t, c.exp, c.exist.add(c.new))
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}
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return
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}
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// TestMemTombstonesConcurrency to make sure they are safe to access from different goroutines.
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func TestMemTombstonesConcurrency(t *testing.T) {
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tomb := newMemTombstones()
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totalRuns := 100
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var wg sync.WaitGroup
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wg.Add(2)
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go func() {
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for x := 0; x < totalRuns; x++ {
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tomb.addInterval(uint64(x), Interval{int64(x), int64(x)})
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}
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wg.Done()
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}()
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go func() {
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for x := 0; x < totalRuns; x++ {
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tomb.Get(uint64(x))
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}
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wg.Done()
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}()
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wg.Wait()
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}
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