forked from TrueCloudLab/frostfs-sdk-go
298 lines
7.6 KiB
Go
298 lines
7.6 KiB
Go
package netmap
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import (
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"fmt"
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"math/rand"
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"sort"
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"strconv"
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"testing"
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"github.com/TrueCloudLab/frostfs-api-go/v2/netmap"
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"github.com/TrueCloudLab/hrw"
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"github.com/stretchr/testify/require"
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)
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func BenchmarkHRWSort(b *testing.B) {
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const netmapSize = 1000
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vectors := make([]nodes, netmapSize)
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weights := make([]float64, netmapSize)
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for i := range vectors {
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key := make([]byte, 33)
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rand.Read(key)
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var node NodeInfo
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node.SetPrice(1)
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node.SetCapacity(100)
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node.SetPublicKey(key)
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vectors[i] = nodes{node}
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weights[i] = float64(rand.Uint32()%10) / 10.0
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}
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pivot := rand.Uint64()
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b.Run("sort by index, no weight", func(b *testing.B) {
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realNodes := make([]nodes, netmapSize)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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copy(realNodes, vectors)
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b.StartTimer()
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hrw.SortSliceByIndex(realNodes, pivot)
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}
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})
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b.Run("sort by value, no weight", func(b *testing.B) {
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realNodes := make([]nodes, netmapSize)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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copy(realNodes, vectors)
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b.StartTimer()
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hrw.SortSliceByValue(realNodes, pivot)
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}
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})
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b.Run("only sort by index", func(b *testing.B) {
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realNodes := make([]nodes, netmapSize)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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copy(realNodes, vectors)
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b.StartTimer()
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hrw.SortSliceByWeightIndex(realNodes, weights, pivot)
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}
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})
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b.Run("sort by value", func(b *testing.B) {
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realNodes := make([]nodes, netmapSize)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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copy(realNodes, vectors)
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b.StartTimer()
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hrw.SortSliceByWeightValue(realNodes, weights, pivot)
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}
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})
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b.Run("sort by ID, then by index (deterministic)", func(b *testing.B) {
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realNodes := make([]nodes, netmapSize)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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copy(realNodes, vectors)
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b.StartTimer()
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sort.Slice(vectors, func(i, j int) bool {
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return less(vectors[i][0], vectors[j][0])
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})
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hrw.SortSliceByWeightIndex(realNodes, weights, pivot)
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}
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})
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}
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func BenchmarkPolicyHRWType(b *testing.B) {
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const netmapSize = 100
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p := newPlacementPolicy(1,
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[]ReplicaDescriptor{
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newReplica(1, "loc1"),
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newReplica(1, "loc2")},
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[]Selector{
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newSelector("loc1", "Location", 1, "loc1", (*Selector).SelectSame),
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newSelector("loc2", "Location", 1, "loc2", (*Selector).SelectSame)},
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[]Filter{
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newFilter("loc1", "Location", "Shanghai", netmap.EQ),
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newFilter("loc2", "Location", "Shanghai", netmap.NE),
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})
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nodes := make([]NodeInfo, netmapSize)
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for i := range nodes {
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var loc string
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switch i % 20 {
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case 0:
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loc = "Shanghai"
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default:
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loc = strconv.Itoa(i % 20)
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}
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// Having the same price and capacity ensures equal weights for all nodes.
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// This way placement is more dependent on the initial order.
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nodes[i] = nodeInfoFromAttributes("Location", loc, "Price", "1", "Capacity", "10")
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pub := make([]byte, 33)
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pub[0] = byte(i)
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nodes[i].SetPublicKey(pub)
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}
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var nm NetMap
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nm.SetNodes(nodes)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, err := nm.ContainerNodes(p, []byte{1})
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if err != nil {
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b.Fatal()
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}
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}
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}
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func TestPlacementPolicy_DeterministicOrder(t *testing.T) {
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const netmapSize = 100
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p := newPlacementPolicy(1,
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[]ReplicaDescriptor{
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newReplica(1, "loc1"),
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newReplica(1, "loc2")},
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[]Selector{
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newSelector("loc1", "Location", 1, "loc1", (*Selector).SelectSame),
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newSelector("loc2", "Location", 1, "loc2", (*Selector).SelectSame)},
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[]Filter{
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newFilter("loc1", "Location", "Shanghai", netmap.EQ),
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newFilter("loc2", "Location", "Shanghai", netmap.NE),
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})
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nodeList := make([]NodeInfo, netmapSize)
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for i := range nodeList {
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var loc string
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switch i % 20 {
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case 0:
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loc = "Shanghai"
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default:
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loc = strconv.Itoa(i % 20)
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}
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// Having the same price and capacity ensures equal weights for all nodes.
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// This way placement is more dependent on the initial order.
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nodeList[i] = nodeInfoFromAttributes("Location", loc, "Price", "1", "Capacity", "10")
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pub := make([]byte, 33)
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pub[0] = byte(i)
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nodeList[i].SetPublicKey(pub)
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}
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var nm NetMap
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nm.SetNodes(nodeList)
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getIndices := func(t *testing.T) (uint64, uint64) {
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v, err := nm.ContainerNodes(p, []byte{1})
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require.NoError(t, err)
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nss := make([]nodes, len(v))
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for i := range v {
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nss[i] = v[i]
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}
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ns := flattenNodes(nss)
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require.Equal(t, 2, len(ns))
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return ns[0].Hash(), ns[1].Hash()
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}
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a, b := getIndices(t)
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for i := 0; i < 10; i++ {
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x, y := getIndices(t)
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require.Equal(t, a, x)
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require.Equal(t, b, y)
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}
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}
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func TestPlacementPolicy_ProcessSelectors(t *testing.T) {
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p := newPlacementPolicy(2, nil,
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[]Selector{
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newSelector("SameRU", "City", 2, "FromRU", (*Selector).SelectSame),
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newSelector("DistinctRU", "City", 2, "FromRU", (*Selector).SelectDistinct),
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newSelector("Good", "Country", 2, "Good", (*Selector).SelectDistinct),
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newSelector("Main", "Country", 3, "*", (*Selector).SelectDistinct),
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},
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[]Filter{
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newFilter("FromRU", "Country", "Russia", netmap.EQ),
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newFilter("Good", "Rating", "4", netmap.GE),
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})
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nodes := []NodeInfo{
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nodeInfoFromAttributes("Country", "Russia", "Rating", "1", "City", "SPB"),
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nodeInfoFromAttributes("Country", "Germany", "Rating", "5", "City", "Berlin"),
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nodeInfoFromAttributes("Country", "Russia", "Rating", "6", "City", "Moscow"),
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nodeInfoFromAttributes("Country", "France", "Rating", "4", "City", "Paris"),
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nodeInfoFromAttributes("Country", "France", "Rating", "1", "City", "Lyon"),
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nodeInfoFromAttributes("Country", "Russia", "Rating", "5", "City", "SPB"),
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nodeInfoFromAttributes("Country", "Russia", "Rating", "7", "City", "Moscow"),
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nodeInfoFromAttributes("Country", "Germany", "Rating", "3", "City", "Darmstadt"),
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nodeInfoFromAttributes("Country", "Germany", "Rating", "7", "City", "Frankfurt"),
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nodeInfoFromAttributes("Country", "Russia", "Rating", "9", "City", "SPB"),
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nodeInfoFromAttributes("Country", "Russia", "Rating", "9", "City", "SPB"),
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}
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var nm NetMap
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nm.SetNodes(nodes)
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c := newContext(nm)
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c.setCBF(p.backupFactor)
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require.NoError(t, c.processFilters(p))
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require.NoError(t, c.processSelectors(p))
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for _, s := range p.selectors {
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sel := c.selections[s.GetName()]
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s := c.processedSelectors[s.GetName()]
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bucketCount, nodesInBucket := calcNodesCount(*s)
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nodesInBucket *= int(c.cbf)
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targ := fmt.Sprintf("selector '%s'", s.GetName())
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require.Equal(t, bucketCount, len(sel), targ)
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fName := s.GetFilter()
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for _, res := range sel {
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require.Equal(t, nodesInBucket, len(res), targ)
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for j := range res {
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require.True(t, fName == mainFilterName || c.match(c.processedFilters[fName], res[j]), targ)
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}
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}
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}
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}
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func TestSelector_SetName(t *testing.T) {
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const name = "some name"
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var s Selector
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require.Zero(t, s.m.GetName())
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s.SetName(name)
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require.Equal(t, name, s.m.GetName())
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}
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func TestSelector_SetNumberOfNodes(t *testing.T) {
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const num = 3
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var s Selector
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require.Zero(t, s.m.GetCount())
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s.SetNumberOfNodes(num)
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require.EqualValues(t, num, s.m.GetCount())
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}
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func TestSelectorClauses(t *testing.T) {
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var s Selector
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require.Equal(t, netmap.UnspecifiedClause, s.m.GetClause())
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s.SelectDistinct()
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require.Equal(t, netmap.Distinct, s.m.GetClause())
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s.SelectSame()
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require.Equal(t, netmap.Same, s.m.GetClause())
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}
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func TestSelector_SelectByBucketAttribute(t *testing.T) {
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const attr = "some attribute"
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var s Selector
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require.Zero(t, s.m.GetAttribute())
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s.SelectByBucketAttribute(attr)
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require.Equal(t, attr, s.m.GetAttribute())
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}
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func TestSelector_SetFilterName(t *testing.T) {
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const fName = "some filter"
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var s Selector
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require.Zero(t, s.m.GetFilter())
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s.SetFilterName(fName)
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require.Equal(t, fName, s.m.GetFilter())
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}
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