open-nomad/scheduler/rank_test.go

2200 lines
52 KiB
Go

package scheduler
import (
"sort"
"testing"
"github.com/hashicorp/nomad/helper/uuid"
"github.com/hashicorp/nomad/nomad/mock"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/stretchr/testify/require"
)
var testSchedulerConfig = &structs.SchedulerConfiguration{
SchedulerAlgorithm: structs.SchedulerAlgorithmBinpack,
MemoryOversubscriptionEnabled: true,
}
func TestFeasibleRankIterator(t *testing.T) {
_, ctx := testContext(t)
var nodes []*structs.Node
for i := 0; i < 10; i++ {
nodes = append(nodes, mock.Node())
}
static := NewStaticIterator(ctx, nodes)
feasible := NewFeasibleRankIterator(ctx, static)
out := collectRanked(feasible)
if len(out) != len(nodes) {
t.Fatalf("bad: %v", out)
}
}
func TestBinPackIterator_NoExistingAlloc(t *testing.T) {
_, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
// Perfect fit
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 1024,
},
},
},
},
{
Node: &structs.Node{
// Overloaded
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 1024,
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 512,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 512,
},
},
},
},
{
Node: &structs.Node{
// 50% fit
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 4096,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 4096,
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 1024,
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
},
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
if len(out) != 2 {
t.Fatalf("Bad: %v", out)
}
if out[0] != nodes[0] || out[1] != nodes[2] {
t.Fatalf("Bad: %v", out)
}
if out[0].FinalScore != 1.0 {
t.Fatalf("Bad Score: %v", out[0].FinalScore)
}
if out[1].FinalScore < 0.50 || out[1].FinalScore > 0.60 {
t.Fatalf("Bad Score: %v", out[1].FinalScore)
}
}
// TestBinPackIterator_NoExistingAlloc_MixedReserve asserts that node's with
// reserved resources are scored equivalent to as if they had a lower amount of
// resources.
func TestBinPackIterator_NoExistingAlloc_MixedReserve(t *testing.T) {
_, ctx := testContext(t)
nodes := []*RankedNode{
{
// Best fit
Node: &structs.Node{
Name: "no-reserved",
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 1100,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 1100,
},
},
},
},
{
// Not best fit if reserve is calculated properly
Node: &structs.Node{
Name: "reserved",
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2000,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2000,
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 800,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 800,
},
},
},
},
{
// Even worse fit due to reservations
Node: &structs.Node{
Name: "reserved2",
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2000,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2000,
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 500,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 500,
},
},
},
},
{
Node: &structs.Node{
Name: "overloaded",
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 900,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 900,
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1000,
MemoryMB: 1000,
},
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
// Sort descending (highest score to lowest) and log for debugging
sort.Slice(out, func(i, j int) bool { return out[i].FinalScore > out[j].FinalScore })
for i := range out {
t.Logf("Node: %-12s Score: %-1.4f", out[i].Node.Name, out[i].FinalScore)
}
// 3 nodes should be feasible
require.Len(t, out, 3)
// Node without reservations is the best fit
require.Equal(t, nodes[0].Node.Name, out[0].Node.Name)
// Node with smallest remaining resources ("best fit") should get a
// higher score than node with more remaining resources ("worse fit")
require.Equal(t, nodes[1].Node.Name, out[1].Node.Name)
require.Equal(t, nodes[2].Node.Name, out[2].Node.Name)
}
// Tests bin packing iterator with network resources at task and task group level
func TestBinPackIterator_Network_Success(t *testing.T) {
_, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
// Perfect fit
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
Networks: []*structs.NetworkResource{
{
Mode: "host",
Device: "eth0",
CIDR: "192.168.0.100/32",
MBits: 1000,
},
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 1024,
},
Networks: structs.NodeReservedNetworkResources{
ReservedHostPorts: "1000-2000",
},
},
},
},
{
Node: &structs.Node{
// 50% fit
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 4096,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 4096,
},
Networks: []*structs.NetworkResource{
{
Mode: "host",
Device: "eth0",
CIDR: "192.168.0.100/32",
MBits: 1000,
},
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 1024,
},
Networks: structs.NodeReservedNetworkResources{
ReservedHostPorts: "1000-2000",
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Create a task group with networks specified at task and task group level
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Networks: []*structs.NetworkResource{
{
Device: "eth0",
MBits: 300,
},
},
},
},
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
MBits: 500,
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
require := require.New(t)
// We expect both nodes to be eligible to place
require.Len(out, 2)
require.Equal(out[0], nodes[0])
require.Equal(out[1], nodes[1])
// First node should have a perfect score
require.Equal(1.0, out[0].FinalScore)
if out[1].FinalScore < 0.50 || out[1].FinalScore > 0.60 {
t.Fatalf("Bad Score: %v", out[1].FinalScore)
}
// Verify network information at taskgroup level
require.Equal(500, out[0].AllocResources.Networks[0].MBits)
require.Equal(500, out[1].AllocResources.Networks[0].MBits)
// Verify network information at task level
require.Equal(300, out[0].TaskResources["web"].Networks[0].MBits)
require.Equal(300, out[1].TaskResources["web"].Networks[0].MBits)
}
// Tests that bin packing iterator fails due to overprovisioning of network
// This test has network resources at task group and task level
func TestBinPackIterator_Network_Failure(t *testing.T) {
// Bandwidth tracking is deprecated
t.Skip()
_, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
// 50% fit
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 4096,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 4096,
},
Networks: []*structs.NetworkResource{
{
Mode: "host",
Device: "eth0",
CIDR: "192.168.0.100/32",
MBits: 1000,
},
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 1024,
},
Networks: structs.NodeReservedNetworkResources{
ReservedHostPorts: "1000-2000",
},
},
},
},
}
// Add a planned alloc that takes up some network mbits at task and task group level
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].Node.ID] = []*structs.Allocation{
{
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 2048,
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 2048,
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
IP: "192.168.0.1",
MBits: 300,
},
},
},
},
Shared: structs.AllocatedSharedResources{
Networks: []*structs.NetworkResource{
{
Device: "eth0",
IP: "192.168.0.1",
MBits: 400,
},
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Create a task group with networks specified at task and task group level
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Networks: []*structs.NetworkResource{
{
Device: "eth0",
MBits: 300,
},
},
},
},
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
MBits: 250,
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
require := require.New(t)
// We expect a placement failure because we need 800 mbits of network
// and only 300 is free
require.Len(out, 0)
require.Equal(1, ctx.metrics.DimensionExhausted["network: bandwidth exceeded"])
}
func TestBinPackIterator_Network_NoCollision_Node(t *testing.T) {
_, ctx := testContext(t)
eventsCh := make(chan interface{})
ctx.eventsCh = eventsCh
// Host networks can have overlapping addresses in which case their
// reserved ports are merged.
nodes := []*RankedNode{
{
Node: &structs.Node{
ID: uuid.Generate(),
Resources: &structs.Resources{
Networks: []*structs.NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/32",
IP: "192.158.0.100",
},
},
},
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 4096,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 4096,
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/32",
IP: "192.158.0.100",
},
},
NodeNetworks: []*structs.NodeNetworkResource{
{
Mode: "host",
Device: "eth0",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "default",
Address: "192.168.0.100",
ReservedPorts: "22,80",
},
{
Alias: "private",
Address: "192.168.0.100",
ReservedPorts: "22",
},
},
},
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Networks: []*structs.NetworkResource{
{
Device: "eth0",
},
},
},
},
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
// Placement should succeed since reserved ports are merged instead of
// treating them as a collision
require.Len(t, out, 1)
}
// TestBinPackIterator_Network_NodeError asserts that NetworkIndex.SetNode can
// return an error and cause a node to be infeasible.
//
// This should never happen as it indicates "bad" configuration was either not
// caught by validation or caused by bugs in serverside Node handling.
func TestBinPackIterator_Network_NodeError(t *testing.T) {
_, ctx := testContext(t)
eventsCh := make(chan interface{})
ctx.eventsCh = eventsCh
nodes := []*RankedNode{
{
Node: &structs.Node{
ID: uuid.Generate(),
Resources: &structs.Resources{
Networks: []*structs.NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/32",
IP: "192.158.0.100",
},
},
},
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 4096,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 4096,
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
CIDR: "192.168.0.100/32",
IP: "192.158.0.100",
},
},
NodeNetworks: []*structs.NodeNetworkResource{
{
Mode: "host",
Device: "eth0",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "default",
Address: "192.168.0.100",
ReservedPorts: "22,80",
},
{
Alias: "private",
Address: "192.168.0.100",
ReservedPorts: "22",
},
},
},
},
},
ReservedResources: &structs.NodeReservedResources{
Networks: structs.NodeReservedNetworkResources{
ReservedHostPorts: "not-valid-ports",
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Networks: []*structs.NetworkResource{
{
Device: "eth0",
},
},
},
},
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
// We expect a placement failure because the node has invalid reserved
// ports
require.Len(t, out, 0)
require.Equal(t, 1, ctx.metrics.DimensionExhausted["network: invalid node"],
ctx.metrics.DimensionExhausted)
}
func TestBinPackIterator_Network_PortCollision_Alloc(t *testing.T) {
state, ctx := testContext(t)
eventsCh := make(chan interface{})
ctx.eventsCh = eventsCh
nodes := []*RankedNode{
{
Node: &structs.Node{
ID: uuid.Generate(),
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Add allocations with port collision.
j := mock.Job()
alloc1 := &structs.Allocation{
Namespace: structs.DefaultNamespace,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[0].Node.ID,
JobID: j.ID,
Job: j,
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 1024,
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 1024,
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
ReservedPorts: []structs.Port{{Label: "admin", Value: 5000}},
MBits: 50,
DynamicPorts: []structs.Port{{Label: "http", Value: 9876}},
},
},
},
},
},
DesiredStatus: structs.AllocDesiredStatusRun,
ClientStatus: structs.AllocClientStatusPending,
TaskGroup: "web",
}
alloc2 := &structs.Allocation{
Namespace: structs.DefaultNamespace,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[0].Node.ID,
JobID: j.ID,
Job: j,
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 1024,
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 1024,
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
IP: "192.168.0.100",
ReservedPorts: []structs.Port{{Label: "admin", Value: 5000}},
MBits: 50,
DynamicPorts: []structs.Port{{Label: "http", Value: 9876}},
},
},
},
},
},
DesiredStatus: structs.AllocDesiredStatusRun,
ClientStatus: structs.AllocClientStatusPending,
TaskGroup: "web",
}
require.NoError(t, state.UpsertJobSummary(998, mock.JobSummary(alloc1.JobID)))
require.NoError(t, state.UpsertJobSummary(999, mock.JobSummary(alloc2.JobID)))
require.NoError(t, state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, []*structs.Allocation{alloc1, alloc2}))
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Networks: []*structs.NetworkResource{
{
Device: "eth0",
},
},
},
},
},
Networks: []*structs.NetworkResource{
{
Device: "eth0",
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
// We expect a placement failure due to port collision.
require.Len(t, out, 0)
require.Equal(t, 1, ctx.metrics.DimensionExhausted["network: port collision"])
}
// Tests bin packing iterator with host network interpolation of task group level ports configuration
func TestBinPackIterator_Network_Interpolation_Success(t *testing.T) {
_, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
Meta: map[string]string{
"test_network": "private",
"some_network": "public",
},
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
NodeNetworks: []*structs.NodeNetworkResource{
{
Mode: "host",
Device: "eth0",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "private",
Address: "192.168.0.101/32",
ReservedPorts: "9091-10000",
},
},
},
{
Mode: "host",
Device: "eth1",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "public",
Address: "9.9.9.9/32",
},
},
},
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 1024,
},
},
},
},
{
Node: &structs.Node{
Meta: map[string]string{
"test_network": "first",
"some_network": "second",
},
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 4096,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 4096,
},
NodeNetworks: []*structs.NodeNetworkResource{
{
Mode: "host",
Device: "eth0",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "first",
Address: "192.168.0.100/32",
ReservedPorts: "9091-10000",
},
},
},
{
Mode: "host",
Device: "eth1",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "second",
Address: "8.8.8.8/32",
},
},
},
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 1024,
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Create a task group with networks specified at task group level
taskGroup := &structs.TaskGroup{
Networks: []*structs.NetworkResource{
{
DynamicPorts: []structs.Port{
{
Label: "http",
Value: 8080,
To: 8080,
HostNetwork: "${meta.test_network}",
},
{
Label: "stats",
Value: 9090,
To: 9090,
HostNetwork: "${meta.some_network}",
},
},
},
},
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
},
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
require := require.New(t)
// We expect both nodes to be eligible to place
require.Len(out, 2)
require.Equal(out[0], nodes[0])
require.Equal(out[1], nodes[1])
// Verify network information at taskgroup level
require.Contains([]string{"public", "private"}, out[0].AllocResources.Networks[0].DynamicPorts[0].HostNetwork)
require.Contains([]string{"public", "private"}, out[0].AllocResources.Networks[0].DynamicPorts[1].HostNetwork)
require.Contains([]string{"first", "second"}, out[1].AllocResources.Networks[0].DynamicPorts[0].HostNetwork)
require.Contains([]string{"first", "second"}, out[1].AllocResources.Networks[0].DynamicPorts[1].HostNetwork)
}
// Tests that bin packing iterator fails due to absence of meta value
// This test has network resources at task group
func TestBinPackIterator_Host_Network_Interpolation_Absent_Value(t *testing.T) {
_, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
Meta: map[string]string{
"test_network": "private",
"some_network": "public",
},
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 4096,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 4096,
},
NodeNetworks: []*structs.NodeNetworkResource{
{
Mode: "host",
Device: "eth0",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "private",
Address: "192.168.0.100/32",
ReservedPorts: "9091-10000",
},
},
},
{
Mode: "host",
Device: "eth1",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "public",
Address: "8.8.8.8/32",
},
},
},
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 1024,
},
Networks: structs.NodeReservedNetworkResources{
ReservedHostPorts: "1000-2000",
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Create a task group with host networks specified at task group level
taskGroup := &structs.TaskGroup{
Networks: []*structs.NetworkResource{
{
DynamicPorts: []structs.Port{
{
Label: "http",
Value: 8080,
To: 8080,
HostNetwork: "${meta.test_network}",
},
{
Label: "stats",
Value: 9090,
To: 9090,
HostNetwork: "${meta.absent_network}",
},
},
},
},
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
},
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
require := require.New(t)
require.Len(out, 0)
}
// Tests that bin packing iterator fails due to absence of meta value
// This test has network resources at task group
func TestBinPackIterator_Host_Network_Interpolation_Interface_Not_Exists(t *testing.T) {
_, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
Meta: map[string]string{
"test_network": "private",
"some_network": "absent",
},
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 4096,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 4096,
},
NodeNetworks: []*structs.NodeNetworkResource{
{
Mode: "host",
Device: "eth0",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "private",
Address: "192.168.0.100/32",
ReservedPorts: "9091-10000",
},
},
},
{
Mode: "host",
Device: "eth1",
Addresses: []structs.NodeNetworkAddress{
{
Alias: "public",
Address: "8.8.8.8/32",
},
},
},
},
},
ReservedResources: &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: 1024,
},
Memory: structs.NodeReservedMemoryResources{
MemoryMB: 1024,
},
Networks: structs.NodeReservedNetworkResources{
ReservedHostPorts: "1000-2000",
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Create a task group with host networks specified at task group level
taskGroup := &structs.TaskGroup{
Networks: []*structs.NetworkResource{
{
DynamicPorts: []structs.Port{
{
Label: "http",
Value: 8080,
To: 8080,
HostNetwork: "${meta.test_network}",
},
{
Label: "stats",
Value: 9090,
To: 9090,
HostNetwork: "${meta.some_network}",
},
},
},
},
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
},
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
require := require.New(t)
require.Len(out, 0)
}
func TestBinPackIterator_PlannedAlloc(t *testing.T) {
_, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
// Perfect fit
ID: uuid.Generate(),
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
},
},
{
Node: &structs.Node{
// Perfect fit
ID: uuid.Generate(),
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Add a planned alloc to node1 that fills it
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].Node.ID] = []*structs.Allocation{
{
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 2048,
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 2048,
},
},
},
},
},
}
// Add a planned alloc to node2 that half fills it
plan.NodeAllocation[nodes[1].Node.ID] = []*structs.Allocation{
{
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 1024,
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 1024,
},
},
},
},
},
}
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
},
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
if len(out) != 1 {
t.Fatalf("Bad: %#v", out)
}
if out[0] != nodes[1] {
t.Fatalf("Bad Score: %v", out)
}
if out[0].FinalScore != 1.0 {
t.Fatalf("Bad Score: %v", out[0].FinalScore)
}
}
func TestBinPackIterator_ReservedCores(t *testing.T) {
state, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
// Perfect fit
ID: uuid.Generate(),
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
TotalCpuCores: 2,
ReservableCpuCores: []uint16{0, 1},
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
},
},
{
Node: &structs.Node{
// Perfect fit
ID: uuid.Generate(),
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
TotalCpuCores: 2,
ReservableCpuCores: []uint16{0, 1},
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Add existing allocations
j1, j2 := mock.Job(), mock.Job()
alloc1 := &structs.Allocation{
Namespace: structs.DefaultNamespace,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[0].Node.ID,
JobID: j1.ID,
Job: j1,
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 2048,
ReservedCores: []uint16{0, 1},
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 2048,
},
},
},
},
DesiredStatus: structs.AllocDesiredStatusRun,
ClientStatus: structs.AllocClientStatusPending,
TaskGroup: "web",
}
alloc2 := &structs.Allocation{
Namespace: structs.DefaultNamespace,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].Node.ID,
JobID: j2.ID,
Job: j2,
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 1024,
ReservedCores: []uint16{0},
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 1024,
},
},
},
},
DesiredStatus: structs.AllocDesiredStatusRun,
ClientStatus: structs.AllocClientStatusPending,
TaskGroup: "web",
}
require.NoError(t, state.UpsertJobSummary(998, mock.JobSummary(alloc1.JobID)))
require.NoError(t, state.UpsertJobSummary(999, mock.JobSummary(alloc2.JobID)))
require.NoError(t, state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, []*structs.Allocation{alloc1, alloc2}))
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
Cores: 1,
MemoryMB: 1024,
},
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
require := require.New(t)
require.Len(out, 1)
require.Equal(nodes[1].Node.ID, out[0].Node.ID)
require.Equal([]uint16{1}, out[0].TaskResources["web"].Cpu.ReservedCores)
}
func TestBinPackIterator_ExistingAlloc(t *testing.T) {
state, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
// Perfect fit
ID: uuid.Generate(),
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
},
},
{
Node: &structs.Node{
// Perfect fit
ID: uuid.Generate(),
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Add existing allocations
j1, j2 := mock.Job(), mock.Job()
alloc1 := &structs.Allocation{
Namespace: structs.DefaultNamespace,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[0].Node.ID,
JobID: j1.ID,
Job: j1,
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 2048,
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 2048,
},
},
},
},
DesiredStatus: structs.AllocDesiredStatusRun,
ClientStatus: structs.AllocClientStatusPending,
TaskGroup: "web",
}
alloc2 := &structs.Allocation{
Namespace: structs.DefaultNamespace,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].Node.ID,
JobID: j2.ID,
Job: j2,
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 1024,
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 1024,
},
},
},
},
DesiredStatus: structs.AllocDesiredStatusRun,
ClientStatus: structs.AllocClientStatusPending,
TaskGroup: "web",
}
require.NoError(t, state.UpsertJobSummary(998, mock.JobSummary(alloc1.JobID)))
require.NoError(t, state.UpsertJobSummary(999, mock.JobSummary(alloc2.JobID)))
require.NoError(t, state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, []*structs.Allocation{alloc1, alloc2}))
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
},
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
if len(out) != 1 {
t.Fatalf("Bad: %#v", out)
}
if out[0] != nodes[1] {
t.Fatalf("Bad: %v", out)
}
if out[0].FinalScore != 1.0 {
t.Fatalf("Bad Score: %v", out[0].FinalScore)
}
}
func TestBinPackIterator_ExistingAlloc_PlannedEvict(t *testing.T) {
state, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
// Perfect fit
ID: uuid.Generate(),
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
},
},
{
Node: &structs.Node{
// Perfect fit
ID: uuid.Generate(),
NodeResources: &structs.NodeResources{
Cpu: structs.NodeCpuResources{
CpuShares: 2048,
},
Memory: structs.NodeMemoryResources{
MemoryMB: 2048,
},
},
},
},
}
static := NewStaticRankIterator(ctx, nodes)
// Add existing allocations
j1, j2 := mock.Job(), mock.Job()
alloc1 := &structs.Allocation{
Namespace: structs.DefaultNamespace,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[0].Node.ID,
JobID: j1.ID,
Job: j1,
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 2048,
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 2048,
},
},
},
},
DesiredStatus: structs.AllocDesiredStatusRun,
ClientStatus: structs.AllocClientStatusPending,
TaskGroup: "web",
}
alloc2 := &structs.Allocation{
Namespace: structs.DefaultNamespace,
ID: uuid.Generate(),
EvalID: uuid.Generate(),
NodeID: nodes[1].Node.ID,
JobID: j2.ID,
Job: j2,
AllocatedResources: &structs.AllocatedResources{
Tasks: map[string]*structs.AllocatedTaskResources{
"web": {
Cpu: structs.AllocatedCpuResources{
CpuShares: 1024,
},
Memory: structs.AllocatedMemoryResources{
MemoryMB: 1024,
},
},
},
},
DesiredStatus: structs.AllocDesiredStatusRun,
ClientStatus: structs.AllocClientStatusPending,
TaskGroup: "web",
}
require.NoError(t, state.UpsertJobSummary(998, mock.JobSummary(alloc1.JobID)))
require.NoError(t, state.UpsertJobSummary(999, mock.JobSummary(alloc2.JobID)))
require.NoError(t, state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, []*structs.Allocation{alloc1, alloc2}))
// Add a planned eviction to alloc1
plan := ctx.Plan()
plan.NodeUpdate[nodes[0].Node.ID] = []*structs.Allocation{alloc1}
taskGroup := &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
},
},
},
}
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(taskGroup)
scoreNorm := NewScoreNormalizationIterator(ctx, binp)
out := collectRanked(scoreNorm)
if len(out) != 2 {
t.Fatalf("Bad: %#v", out)
}
if out[0] != nodes[0] || out[1] != nodes[1] {
t.Fatalf("Bad: %v", out)
}
if out[0].FinalScore < 0.50 || out[0].FinalScore > 0.95 {
t.Fatalf("Bad Score: %v", out[0].FinalScore)
}
if out[1].FinalScore != 1 {
t.Fatalf("Bad Score: %v", out[1].FinalScore)
}
}
// This is a fairly high level test that asserts the bin packer uses the device
// allocator properly. It is not intended to handle every possible device
// request versus availability scenario. That should be covered in device
// allocator tests.
func TestBinPackIterator_Devices(t *testing.T) {
nvidiaNode := mock.NvidiaNode()
devs := nvidiaNode.NodeResources.Devices[0].Instances
nvidiaDevices := []string{devs[0].ID, devs[1].ID}
nvidiaDev0 := mock.Alloc()
nvidiaDev0.AllocatedResources.Tasks["web"].Devices = []*structs.AllocatedDeviceResource{
{
Type: "gpu",
Vendor: "nvidia",
Name: "1080ti",
DeviceIDs: []string{nvidiaDevices[0]},
},
}
type devPlacementTuple struct {
Count int
ExcludeIDs []string
}
cases := []struct {
Name string
Node *structs.Node
PlannedAllocs []*structs.Allocation
ExistingAllocs []*structs.Allocation
TaskGroup *structs.TaskGroup
NoPlace bool
ExpectedPlacements map[string]map[structs.DeviceIdTuple]devPlacementTuple
DeviceScore float64
}{
{
Name: "single request, match",
Node: nvidiaNode,
TaskGroup: &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Devices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 1,
},
},
},
},
},
},
ExpectedPlacements: map[string]map[structs.DeviceIdTuple]devPlacementTuple{
"web": {
{
Vendor: "nvidia",
Type: "gpu",
Name: "1080ti",
}: {
Count: 1,
},
},
},
},
{
Name: "single request multiple count, match",
Node: nvidiaNode,
TaskGroup: &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Devices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 2,
},
},
},
},
},
},
ExpectedPlacements: map[string]map[structs.DeviceIdTuple]devPlacementTuple{
"web": {
{
Vendor: "nvidia",
Type: "gpu",
Name: "1080ti",
}: {
Count: 2,
},
},
},
},
{
Name: "single request, with affinities",
Node: nvidiaNode,
TaskGroup: &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Devices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 1,
Affinities: []*structs.Affinity{
{
LTarget: "${device.attr.graphics_clock}",
Operand: ">",
RTarget: "1.4 GHz",
Weight: 90,
},
},
},
},
},
},
},
},
ExpectedPlacements: map[string]map[structs.DeviceIdTuple]devPlacementTuple{
"web": {
{
Vendor: "nvidia",
Type: "gpu",
Name: "1080ti",
}: {
Count: 1,
},
},
},
DeviceScore: 1.0,
},
{
Name: "single request over count, no match",
Node: nvidiaNode,
TaskGroup: &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Devices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 6,
},
},
},
},
},
},
NoPlace: true,
},
{
Name: "single request no device of matching type",
Node: nvidiaNode,
TaskGroup: &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Devices: []*structs.RequestedDevice{
{
Name: "fpga",
Count: 1,
},
},
},
},
},
},
NoPlace: true,
},
{
Name: "single request with previous uses",
Node: nvidiaNode,
TaskGroup: &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Devices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 1,
},
},
},
},
},
},
ExpectedPlacements: map[string]map[structs.DeviceIdTuple]devPlacementTuple{
"web": {
{
Vendor: "nvidia",
Type: "gpu",
Name: "1080ti",
}: {
Count: 1,
ExcludeIDs: []string{nvidiaDevices[0]},
},
},
},
ExistingAllocs: []*structs.Allocation{nvidiaDev0},
},
{
Name: "single request with planned uses",
Node: nvidiaNode,
TaskGroup: &structs.TaskGroup{
EphemeralDisk: &structs.EphemeralDisk{},
Tasks: []*structs.Task{
{
Name: "web",
Resources: &structs.Resources{
CPU: 1024,
MemoryMB: 1024,
Devices: []*structs.RequestedDevice{
{
Name: "nvidia/gpu",
Count: 1,
},
},
},
},
},
},
ExpectedPlacements: map[string]map[structs.DeviceIdTuple]devPlacementTuple{
"web": {
{
Vendor: "nvidia",
Type: "gpu",
Name: "1080ti",
}: {
Count: 1,
ExcludeIDs: []string{nvidiaDevices[0]},
},
},
},
PlannedAllocs: []*structs.Allocation{nvidiaDev0},
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
require := require.New(t)
// Setup the context
state, ctx := testContext(t)
// Add the planned allocs
if len(c.PlannedAllocs) != 0 {
for _, alloc := range c.PlannedAllocs {
alloc.NodeID = c.Node.ID
}
plan := ctx.Plan()
plan.NodeAllocation[c.Node.ID] = c.PlannedAllocs
}
// Add the existing allocs
if len(c.ExistingAllocs) != 0 {
for _, alloc := range c.ExistingAllocs {
alloc.NodeID = c.Node.ID
}
require.NoError(state.UpsertAllocs(structs.MsgTypeTestSetup, 1000, c.ExistingAllocs))
}
static := NewStaticRankIterator(ctx, []*RankedNode{{Node: c.Node}})
binp := NewBinPackIterator(ctx, static, false, 0, testSchedulerConfig)
binp.SetTaskGroup(c.TaskGroup)
out := binp.Next()
if out == nil && !c.NoPlace {
t.Fatalf("expected placement")
}
// Check we got the placements we are expecting
for tname, devices := range c.ExpectedPlacements {
tr, ok := out.TaskResources[tname]
require.True(ok)
want := len(devices)
got := 0
for _, placed := range tr.Devices {
got++
expected, ok := devices[*placed.ID()]
require.True(ok)
require.Equal(expected.Count, len(placed.DeviceIDs))
for _, id := range expected.ExcludeIDs {
require.NotContains(placed.DeviceIDs, id)
}
}
require.Equal(want, got)
}
// Check potential affinity scores
if c.DeviceScore != 0.0 {
require.Len(out.Scores, 2)
require.Equal(c.DeviceScore, out.Scores[1])
}
})
}
}
func TestJobAntiAffinity_PlannedAlloc(t *testing.T) {
_, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
ID: uuid.Generate(),
},
},
{
Node: &structs.Node{
ID: uuid.Generate(),
},
},
}
static := NewStaticRankIterator(ctx, nodes)
job := mock.Job()
job.ID = "foo"
tg := job.TaskGroups[0]
tg.Count = 4
// Add a planned alloc to node1 that fills it
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].Node.ID] = []*structs.Allocation{
{
ID: uuid.Generate(),
JobID: "foo",
TaskGroup: tg.Name,
},
{
ID: uuid.Generate(),
JobID: "foo",
TaskGroup: tg.Name,
},
}
// Add a planned alloc to node2 that half fills it
plan.NodeAllocation[nodes[1].Node.ID] = []*structs.Allocation{
{
JobID: "bar",
},
}
jobAntiAff := NewJobAntiAffinityIterator(ctx, static, "foo")
jobAntiAff.SetJob(job)
jobAntiAff.SetTaskGroup(tg)
scoreNorm := NewScoreNormalizationIterator(ctx, jobAntiAff)
out := collectRanked(scoreNorm)
if len(out) != 2 {
t.Fatalf("Bad: %#v", out)
}
if out[0] != nodes[0] {
t.Fatalf("Bad: %v", out)
}
// Score should be -(#collissions+1/desired_count) => -(3/4)
if out[0].FinalScore != -0.75 {
t.Fatalf("Bad Score: %#v", out[0].FinalScore)
}
if out[1] != nodes[1] {
t.Fatalf("Bad: %v", out)
}
if out[1].FinalScore != 0.0 {
t.Fatalf("Bad Score: %v", out[1].FinalScore)
}
}
func collectRanked(iter RankIterator) (out []*RankedNode) {
for {
next := iter.Next()
if next == nil {
break
}
out = append(out, next)
}
return
}
func TestNodeAntiAffinity_PenaltyNodes(t *testing.T) {
_, ctx := testContext(t)
node1 := &structs.Node{
ID: uuid.Generate(),
}
node2 := &structs.Node{
ID: uuid.Generate(),
}
nodes := []*RankedNode{
{
Node: node1,
},
{
Node: node2,
},
}
static := NewStaticRankIterator(ctx, nodes)
nodeAntiAffIter := NewNodeReschedulingPenaltyIterator(ctx, static)
nodeAntiAffIter.SetPenaltyNodes(map[string]struct{}{node1.ID: {}})
scoreNorm := NewScoreNormalizationIterator(ctx, nodeAntiAffIter)
out := collectRanked(scoreNorm)
require := require.New(t)
require.Equal(2, len(out))
require.Equal(node1.ID, out[0].Node.ID)
require.Equal(-1.0, out[0].FinalScore)
require.Equal(node2.ID, out[1].Node.ID)
require.Equal(0.0, out[1].FinalScore)
}
func TestScoreNormalizationIterator(t *testing.T) {
// Test normalized scores when there is more than one scorer
_, ctx := testContext(t)
nodes := []*RankedNode{
{
Node: &structs.Node{
ID: uuid.Generate(),
},
},
{
Node: &structs.Node{
ID: uuid.Generate(),
},
},
}
static := NewStaticRankIterator(ctx, nodes)
job := mock.Job()
job.ID = "foo"
tg := job.TaskGroups[0]
tg.Count = 4
// Add a planned alloc to node1 that fills it
plan := ctx.Plan()
plan.NodeAllocation[nodes[0].Node.ID] = []*structs.Allocation{
{
ID: uuid.Generate(),
JobID: "foo",
TaskGroup: tg.Name,
},
{
ID: uuid.Generate(),
JobID: "foo",
TaskGroup: tg.Name,
},
}
// Add a planned alloc to node2 that half fills it
plan.NodeAllocation[nodes[1].Node.ID] = []*structs.Allocation{
{
JobID: "bar",
},
}
jobAntiAff := NewJobAntiAffinityIterator(ctx, static, "foo")
jobAntiAff.SetJob(job)
jobAntiAff.SetTaskGroup(tg)
nodeReschedulePenaltyIter := NewNodeReschedulingPenaltyIterator(ctx, jobAntiAff)
nodeReschedulePenaltyIter.SetPenaltyNodes(map[string]struct{}{nodes[0].Node.ID: {}})
scoreNorm := NewScoreNormalizationIterator(ctx, nodeReschedulePenaltyIter)
out := collectRanked(scoreNorm)
require := require.New(t)
require.Equal(2, len(out))
require.Equal(out[0], nodes[0])
// Score should be averaged between both scorers
// -0.75 from job anti affinity and -1 from node rescheduling penalty
require.Equal(-0.875, out[0].FinalScore)
require.Equal(out[1], nodes[1])
require.Equal(out[1].FinalScore, 0.0)
}
func TestNodeAffinityIterator(t *testing.T) {
_, ctx := testContext(t)
nodes := []*RankedNode{
{Node: mock.Node()},
{Node: mock.Node()},
{Node: mock.Node()},
{Node: mock.Node()},
}
nodes[0].Node.Attributes["kernel.version"] = "4.9"
nodes[1].Node.Datacenter = "dc2"
nodes[2].Node.Datacenter = "dc2"
nodes[2].Node.NodeClass = "large"
affinities := []*structs.Affinity{
{
Operand: "=",
LTarget: "${node.datacenter}",
RTarget: "dc1",
Weight: 100,
},
{
Operand: "=",
LTarget: "${node.datacenter}",
RTarget: "dc2",
Weight: -100,
},
{
Operand: "version",
LTarget: "${attr.kernel.version}",
RTarget: ">4.0",
Weight: 50,
},
{
Operand: "is",
LTarget: "${node.class}",
RTarget: "large",
Weight: 50,
},
}
static := NewStaticRankIterator(ctx, nodes)
job := mock.Job()
job.ID = "foo"
tg := job.TaskGroups[0]
tg.Affinities = affinities
nodeAffinity := NewNodeAffinityIterator(ctx, static)
nodeAffinity.SetTaskGroup(tg)
scoreNorm := NewScoreNormalizationIterator(ctx, nodeAffinity)
out := collectRanked(scoreNorm)
expectedScores := make(map[string]float64)
// Total weight = 300
// Node 0 matches two affinities(dc and kernel version), total weight = 150
expectedScores[nodes[0].Node.ID] = 0.5
// Node 1 matches an anti affinity, weight = -100
expectedScores[nodes[1].Node.ID] = -(1.0 / 3.0)
// Node 2 matches one affinity(node class) with weight 50
expectedScores[nodes[2].Node.ID] = -(1.0 / 6.0)
// Node 3 matches one affinity (dc) with weight = 100
expectedScores[nodes[3].Node.ID] = 1.0 / 3.0
require := require.New(t)
for _, n := range out {
require.Equal(expectedScores[n.Node.ID], n.FinalScore)
}
}