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pkg: add hot write tests #7851

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merged 2 commits into from
Feb 26, 2024
Merged

pkg: add hot write tests #7851

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89727c1
add hot write tests
rleungx Feb 26, 2024
c83a3f8
Merge branch 'master' into add-hot-write-test
ti-chi-bot[bot] Feb 26, 2024
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55 changes: 55 additions & 0 deletions pkg/schedule/schedulers/hot_region_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -203,6 +203,7 @@ func TestHotWriteRegionScheduleByteRateOnly(t *testing.T) {
statisticsInterval = 0
checkHotWriteRegionScheduleByteRateOnly(re, false /* disable placement rules */)
checkHotWriteRegionScheduleByteRateOnly(re, true /* enable placement rules */)
checkHotWriteRegionPlacement(re, true)
}

func TestSplitIfRegionTooHot(t *testing.T) {
Expand Down Expand Up @@ -393,6 +394,60 @@ func TestSplitBucketsByLoad(t *testing.T) {
}
}

func checkHotWriteRegionPlacement(re *require.Assertions, enablePlacementRules bool) {
cancel, _, tc, oc := prepareSchedulersTest()
defer cancel()
tc.SetEnableUseJointConsensus(true)
tc.SetClusterVersion(versioninfo.MinSupportedVersion(versioninfo.ConfChangeV2))
tc.SetEnablePlacementRules(enablePlacementRules)
labels := []string{"zone", "host"}
tc.SetMaxReplicasWithLabel(enablePlacementRules, 3, labels...)
hb, err := CreateScheduler(utils.Write.String(), oc, storage.NewStorageWithMemoryBackend(), nil)
re.NoError(err)
tc.SetHotRegionCacheHitsThreshold(0)

tc.AddLabelsStore(1, 2, map[string]string{"zone": "z1", "host": "h1"})
tc.AddLabelsStore(2, 2, map[string]string{"zone": "z1", "host": "h2"})
tc.AddLabelsStore(3, 2, map[string]string{"zone": "z2", "host": "h3"})
tc.AddLabelsStore(4, 2, map[string]string{"zone": "z2", "host": "h4"})
tc.AddLabelsStore(5, 2, map[string]string{"zone": "z2", "host": "h5"})
tc.AddLabelsStore(6, 2, map[string]string{"zone": "z2", "host": "h6"})
tc.RuleManager.SetRule(&placement.Rule{
GroupID: "pd", ID: "leader", Role: placement.Leader, Count: 1, LabelConstraints: []placement.LabelConstraint{{Key: "zone", Op: "in", Values: []string{"z1"}}},
})
tc.RuleManager.SetRule(&placement.Rule{
GroupID: "pd", ID: "voter", Role: placement.Follower, Count: 2, LabelConstraints: []placement.LabelConstraint{{Key: "zone", Op: "in", Values: []string{"z2"}}},
})
tc.RuleManager.DeleteRule("pd", "default")

tc.UpdateStorageWrittenBytes(1, 10*units.MiB*utils.StoreHeartBeatReportInterval)
tc.UpdateStorageWrittenBytes(2, 0)
tc.UpdateStorageWrittenBytes(3, 6*units.MiB*utils.StoreHeartBeatReportInterval)
tc.UpdateStorageWrittenBytes(4, 3*units.MiB*utils.StoreHeartBeatReportInterval)
tc.UpdateStorageWrittenBytes(5, 3*units.MiB*utils.StoreHeartBeatReportInterval)
tc.UpdateStorageWrittenBytes(6, 6*units.MiB*utils.StoreHeartBeatReportInterval)

// Region 1, 2 and 3 are hot regions.
addRegionInfo(tc, utils.Write, []testRegionInfo{
{1, []uint64{1, 3, 5}, 512 * units.KiB, 0, 0},
{2, []uint64{1, 4, 6}, 512 * units.KiB, 0, 0},
{3, []uint64{1, 3, 6}, 512 * units.KiB, 0, 0},
})
ops, _ := hb.Schedule(tc, false)
re.NotEmpty(ops)
re.NotContains(ops[0].Step(1).String(), "transfer leader")
clearPendingInfluence(hb.(*hotScheduler))

tc.RuleManager.SetRule(&placement.Rule{
GroupID: "pd", ID: "voter", Role: placement.Voter, Count: 2, LabelConstraints: []placement.LabelConstraint{{Key: "zone", Op: "in", Values: []string{"z2"}}},
})
tc.RuleManager.DeleteRule("pd", "follower")
ops, _ = hb.Schedule(tc, false)
re.NotEmpty(ops)
// TODO: fix the test
// re.NotContains(ops[0].Step(1).String(), "transfer leader")
}

func checkHotWriteRegionScheduleByteRateOnly(re *require.Assertions, enablePlacementRules bool) {
cancel, opt, tc, oc := prepareSchedulersTest()
defer cancel()
Expand Down
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