open-nomad/scheduler/stack_test.go
Lang Martin 7b675f89ac csi: fix index maintenance for CSIVolume and CSIPlugin tables (#7049)
* state_store: csi volumes/plugins store the index in the txn

* nomad: csi_endpoint_test require index checks need uint64()

* nomad: other tests using int 0 not uint64(0)

* structs: pass index into New, but not other struct methods

* state_store: csi plugin indexes, use new struct interface

* nomad: csi_endpoint_test check index/query meta (on explicit 0)

* structs: NewCSIVolume takes an index arg now

* scheduler/test: NewCSIVolume takes an index arg now
2020-03-23 13:58:29 -04:00

609 lines
14 KiB
Go

package scheduler
import (
"fmt"
"reflect"
"runtime"
"testing"
"github.com/hashicorp/nomad/nomad/mock"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/stretchr/testify/require"
)
func BenchmarkServiceStack_With_ComputedClass(b *testing.B) {
// Key doesn't escape computed node class.
benchmarkServiceStack_MetaKeyConstraint(b, "key", 5000, 64)
}
func BenchmarkServiceStack_WithOut_ComputedClass(b *testing.B) {
// Key escapes computed node class.
benchmarkServiceStack_MetaKeyConstraint(b, "unique.key", 5000, 64)
}
// benchmarkServiceStack_MetaKeyConstraint creates the passed number of nodes
// and sets the meta data key to have nodePartitions number of values. It then
// benchmarks the stack by selecting a job that constrains against one of the
// partitions.
func benchmarkServiceStack_MetaKeyConstraint(b *testing.B, key string, numNodes, nodePartitions int) {
_, ctx := testContext(b)
stack := NewGenericStack(false, ctx)
// Create 4 classes of nodes.
nodes := make([]*structs.Node, numNodes)
for i := 0; i < numNodes; i++ {
n := mock.Node()
n.Meta[key] = fmt.Sprintf("%d", i%nodePartitions)
nodes[i] = n
}
stack.SetNodes(nodes)
// Create a job whose constraint meets two node classes.
job := mock.Job()
job.Constraints[0] = &structs.Constraint{
LTarget: fmt.Sprintf("${meta.%v}", key),
RTarget: "1",
Operand: "<",
}
stack.SetJob(job)
b.ResetTimer()
selectOptions := &SelectOptions{}
for i := 0; i < b.N; i++ {
stack.Select(job.TaskGroups[0], selectOptions)
}
}
func TestServiceStack_SetNodes(t *testing.T) {
_, ctx := testContext(t)
stack := NewGenericStack(false, ctx)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
}
stack.SetNodes(nodes)
// Check that our scan limit is updated
if stack.limit.limit != 3 {
t.Fatalf("bad limit %d", stack.limit.limit)
}
out := collectFeasible(stack.source)
if !reflect.DeepEqual(out, nodes) {
t.Fatalf("bad: %#v", out)
}
}
func TestServiceStack_SetJob(t *testing.T) {
_, ctx := testContext(t)
stack := NewGenericStack(false, ctx)
job := mock.Job()
stack.SetJob(job)
if stack.binPack.priority != job.Priority {
t.Fatalf("bad")
}
if !reflect.DeepEqual(stack.jobConstraint.constraints, job.Constraints) {
t.Fatalf("bad")
}
}
func TestServiceStack_Select_Size(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
}
stack := NewGenericStack(false, ctx)
stack.SetNodes(nodes)
job := mock.Job()
stack.SetJob(job)
selectOptions := &SelectOptions{}
node := stack.Select(job.TaskGroups[0], selectOptions)
if node == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
// Note: On Windows time.Now currently has a best case granularity of 1ms.
// We skip the following assertion on Windows because this test usually
// runs too fast to measure an allocation time on Windows.
met := ctx.Metrics()
if runtime.GOOS != "windows" && met.AllocationTime == 0 {
t.Fatalf("missing time")
}
}
func TestServiceStack_Select_PreferringNodes(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
}
stack := NewGenericStack(false, ctx)
stack.SetNodes(nodes)
job := mock.Job()
stack.SetJob(job)
// Create a preferred node
preferredNode := mock.Node()
prefNodes := []*structs.Node{preferredNode}
selectOptions := &SelectOptions{PreferredNodes: prefNodes}
option := stack.Select(job.TaskGroups[0], selectOptions)
if option == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
if option.Node.ID != preferredNode.ID {
t.Fatalf("expected: %v, actual: %v", option.Node.ID, preferredNode.ID)
}
// Make sure select doesn't have a side effect on preferred nodes
require.Equal(t, prefNodes, selectOptions.PreferredNodes)
// Change the preferred node's kernel to windows and ensure the allocations
// are placed elsewhere
preferredNode1 := preferredNode.Copy()
preferredNode1.Attributes["kernel.name"] = "windows"
preferredNode1.ComputeClass()
prefNodes1 := []*structs.Node{preferredNode1}
selectOptions = &SelectOptions{PreferredNodes: prefNodes1}
option = stack.Select(job.TaskGroups[0], selectOptions)
if option == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
if option.Node.ID != nodes[0].ID {
t.Fatalf("expected: %#v, actual: %#v", nodes[0], option.Node)
}
require.Equal(t, prefNodes1, selectOptions.PreferredNodes)
}
func TestServiceStack_Select_MetricsReset(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
}
stack := NewGenericStack(false, ctx)
stack.SetNodes(nodes)
job := mock.Job()
stack.SetJob(job)
selectOptions := &SelectOptions{}
n1 := stack.Select(job.TaskGroups[0], selectOptions)
m1 := ctx.Metrics()
if n1 == nil {
t.Fatalf("missing node %#v", m1)
}
if m1.NodesEvaluated != 2 {
t.Fatalf("should only be 2")
}
n2 := stack.Select(job.TaskGroups[0], selectOptions)
m2 := ctx.Metrics()
if n2 == nil {
t.Fatalf("missing node %#v", m2)
}
// If we don't reset, this would be 4
if m2.NodesEvaluated != 2 {
t.Fatalf("should only be 2")
}
}
func TestServiceStack_Select_DriverFilter(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
zero := nodes[0]
zero.Attributes["driver.foo"] = "1"
if err := zero.ComputeClass(); err != nil {
t.Fatalf("ComputedClass() failed: %v", err)
}
stack := NewGenericStack(false, ctx)
stack.SetNodes(nodes)
job := mock.Job()
job.TaskGroups[0].Tasks[0].Driver = "foo"
stack.SetJob(job)
selectOptions := &SelectOptions{}
node := stack.Select(job.TaskGroups[0], selectOptions)
if node == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
if node.Node != zero {
t.Fatalf("bad")
}
}
func TestServiceStack_Select_CSI(t *testing.T) {
state, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
// Create a volume in the state store
index := uint64(999)
v := structs.NewCSIVolume("foo", index)
v.Namespace = structs.DefaultNamespace
v.AccessMode = structs.CSIVolumeAccessModeMultiNodeSingleWriter
v.AttachmentMode = structs.CSIVolumeAttachmentModeFilesystem
v.PluginID = "bar"
err := state.CSIVolumeRegister(999, []*structs.CSIVolume{v})
require.NoError(t, err)
// Create a node with healthy fingerprints for both controller and node plugins
zero := nodes[0]
zero.CSIControllerPlugins = map[string]*structs.CSIInfo{"bar": {
PluginID: "bar",
Healthy: true,
RequiresTopologies: false,
ControllerInfo: &structs.CSIControllerInfo{
SupportsReadOnlyAttach: true,
SupportsListVolumes: true,
},
}}
zero.CSINodePlugins = map[string]*structs.CSIInfo{"bar": {
PluginID: "bar",
Healthy: true,
RequiresTopologies: false,
NodeInfo: &structs.CSINodeInfo{
ID: zero.ID,
MaxVolumes: 2,
AccessibleTopology: nil,
RequiresNodeStageVolume: false,
},
}}
// Add the node to the state store to index the healthy plugins and mark the volume "foo" healthy
err = state.UpsertNode(1000, zero)
require.NoError(t, err)
// Use the node to build the stack and test
if err := zero.ComputeClass(); err != nil {
t.Fatalf("ComputedClass() failed: %v", err)
}
stack := NewGenericStack(false, ctx)
stack.SetNodes(nodes)
job := mock.Job()
job.TaskGroups[0].Volumes = map[string]*structs.VolumeRequest{"foo": {
Name: "bar",
Type: structs.VolumeTypeCSI,
Source: "foo",
ReadOnly: true,
}}
stack.SetJob(job)
selectOptions := &SelectOptions{}
node := stack.Select(job.TaskGroups[0], selectOptions)
if node == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
if node.Node != zero {
t.Fatalf("bad")
}
}
func TestServiceStack_Select_ConstraintFilter(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
zero := nodes[0]
zero.Attributes["kernel.name"] = "freebsd"
if err := zero.ComputeClass(); err != nil {
t.Fatalf("ComputedClass() failed: %v", err)
}
stack := NewGenericStack(false, ctx)
stack.SetNodes(nodes)
job := mock.Job()
job.Constraints[0].RTarget = "freebsd"
stack.SetJob(job)
selectOptions := &SelectOptions{}
node := stack.Select(job.TaskGroups[0], selectOptions)
if node == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
if node.Node != zero {
t.Fatalf("bad")
}
met := ctx.Metrics()
if met.NodesFiltered != 1 {
t.Fatalf("bad: %#v", met)
}
if met.ClassFiltered["linux-medium-pci"] != 1 {
t.Fatalf("bad: %#v", met)
}
if met.ConstraintFiltered["${attr.kernel.name} = freebsd"] != 1 {
t.Fatalf("bad: %#v", met)
}
}
func TestServiceStack_Select_BinPack_Overflow(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
zero := nodes[0]
one := nodes[1]
one.ReservedResources = &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: one.NodeResources.Cpu.CpuShares,
},
}
stack := NewGenericStack(false, ctx)
stack.SetNodes(nodes)
job := mock.Job()
stack.SetJob(job)
selectOptions := &SelectOptions{}
node := stack.Select(job.TaskGroups[0], selectOptions)
ctx.Metrics().PopulateScoreMetaData()
if node == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
if node.Node != zero {
t.Fatalf("bad")
}
met := ctx.Metrics()
if met.NodesExhausted != 1 {
t.Fatalf("bad: %#v", met)
}
if met.ClassExhausted["linux-medium-pci"] != 1 {
t.Fatalf("bad: %#v", met)
}
// Expect score metadata for one node
if len(met.ScoreMetaData) != 1 {
t.Fatalf("bad: %#v", met)
}
}
func TestSystemStack_SetNodes(t *testing.T) {
_, ctx := testContext(t)
stack := NewSystemStack(ctx)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
}
stack.SetNodes(nodes)
out := collectFeasible(stack.source)
if !reflect.DeepEqual(out, nodes) {
t.Fatalf("bad: %#v", out)
}
}
func TestSystemStack_SetJob(t *testing.T) {
_, ctx := testContext(t)
stack := NewSystemStack(ctx)
job := mock.Job()
stack.SetJob(job)
if stack.binPack.priority != job.Priority {
t.Fatalf("bad")
}
if !reflect.DeepEqual(stack.jobConstraint.constraints, job.Constraints) {
t.Fatalf("bad")
}
}
func TestSystemStack_Select_Size(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{mock.Node()}
stack := NewSystemStack(ctx)
stack.SetNodes(nodes)
job := mock.Job()
stack.SetJob(job)
selectOptions := &SelectOptions{}
node := stack.Select(job.TaskGroups[0], selectOptions)
if node == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
// Note: On Windows time.Now currently has a best case granularity of 1ms.
// We skip the following assertion on Windows because this test usually
// runs too fast to measure an allocation time on Windows.
met := ctx.Metrics()
if runtime.GOOS != "windows" && met.AllocationTime == 0 {
t.Fatalf("missing time")
}
}
func TestSystemStack_Select_MetricsReset(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
mock.Node(),
mock.Node(),
}
stack := NewSystemStack(ctx)
stack.SetNodes(nodes)
job := mock.Job()
stack.SetJob(job)
selectOptions := &SelectOptions{}
n1 := stack.Select(job.TaskGroups[0], selectOptions)
m1 := ctx.Metrics()
if n1 == nil {
t.Fatalf("missing node %#v", m1)
}
if m1.NodesEvaluated != 1 {
t.Fatalf("should only be 1")
}
n2 := stack.Select(job.TaskGroups[0], selectOptions)
m2 := ctx.Metrics()
if n2 == nil {
t.Fatalf("missing node %#v", m2)
}
// If we don't reset, this would be 2
if m2.NodesEvaluated != 1 {
t.Fatalf("should only be 2")
}
}
func TestSystemStack_Select_DriverFilter(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
}
zero := nodes[0]
zero.Attributes["driver.foo"] = "1"
stack := NewSystemStack(ctx)
stack.SetNodes(nodes)
job := mock.Job()
job.TaskGroups[0].Tasks[0].Driver = "foo"
stack.SetJob(job)
selectOptions := &SelectOptions{}
node := stack.Select(job.TaskGroups[0], selectOptions)
if node == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
if node.Node != zero {
t.Fatalf("bad")
}
zero.Attributes["driver.foo"] = "0"
if err := zero.ComputeClass(); err != nil {
t.Fatalf("ComputedClass() failed: %v", err)
}
stack = NewSystemStack(ctx)
stack.SetNodes(nodes)
stack.SetJob(job)
node = stack.Select(job.TaskGroups[0], selectOptions)
if node != nil {
t.Fatalf("node not filtered %#v", node)
}
}
func TestSystemStack_Select_ConstraintFilter(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
zero := nodes[1]
zero.Attributes["kernel.name"] = "freebsd"
if err := zero.ComputeClass(); err != nil {
t.Fatalf("ComputedClass() failed: %v", err)
}
stack := NewSystemStack(ctx)
stack.SetNodes(nodes)
job := mock.Job()
job.Constraints[0].RTarget = "freebsd"
stack.SetJob(job)
selectOptions := &SelectOptions{}
node := stack.Select(job.TaskGroups[0], selectOptions)
if node == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
if node.Node != zero {
t.Fatalf("bad")
}
met := ctx.Metrics()
if met.NodesFiltered != 1 {
t.Fatalf("bad: %#v", met)
}
if met.ClassFiltered["linux-medium-pci"] != 1 {
t.Fatalf("bad: %#v", met)
}
if met.ConstraintFiltered["${attr.kernel.name} = freebsd"] != 1 {
t.Fatalf("bad: %#v", met)
}
}
func TestSystemStack_Select_BinPack_Overflow(t *testing.T) {
_, ctx := testContext(t)
nodes := []*structs.Node{
mock.Node(),
mock.Node(),
}
zero := nodes[0]
zero.ReservedResources = &structs.NodeReservedResources{
Cpu: structs.NodeReservedCpuResources{
CpuShares: zero.NodeResources.Cpu.CpuShares,
},
}
one := nodes[1]
stack := NewSystemStack(ctx)
stack.SetNodes(nodes)
job := mock.Job()
stack.SetJob(job)
selectOptions := &SelectOptions{}
node := stack.Select(job.TaskGroups[0], selectOptions)
ctx.Metrics().PopulateScoreMetaData()
if node == nil {
t.Fatalf("missing node %#v", ctx.Metrics())
}
if node.Node != one {
t.Fatalf("bad")
}
met := ctx.Metrics()
if met.NodesExhausted != 1 {
t.Fatalf("bad: %#v", met)
}
if met.ClassExhausted["linux-medium-pci"] != 1 {
t.Fatalf("bad: %#v", met)
}
// Should have two scores, one from bin packing and one from normalization
if len(met.ScoreMetaData) != 1 {
t.Fatalf("bad: %#v", met)
}
}