651 lines
15 KiB
Go
651 lines
15 KiB
Go
package scheduler
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import (
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"fmt"
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"log"
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"os"
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"reflect"
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"testing"
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"github.com/hashicorp/nomad/nomad/mock"
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"github.com/hashicorp/nomad/nomad/state"
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"github.com/hashicorp/nomad/nomad/structs"
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)
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func TestMaterializeTaskGroups(t *testing.T) {
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job := mock.Job()
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index := materializeTaskGroups(job)
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if len(index) != 10 {
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t.Fatalf("Bad: %#v", index)
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}
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for i := 0; i < 10; i++ {
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name := fmt.Sprintf("my-job.web[%d]", i)
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tg, ok := index[name]
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if !ok {
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t.Fatalf("bad")
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}
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if tg != job.TaskGroups[0] {
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t.Fatalf("bad")
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}
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}
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}
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func TestDiffAllocs(t *testing.T) {
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job := mock.Job()
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required := materializeTaskGroups(job)
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// The "old" job has a previous modify index
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oldJob := new(structs.Job)
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*oldJob = *job
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oldJob.ModifyIndex -= 1
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tainted := map[string]bool{
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"dead": true,
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"zip": false,
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}
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allocs := []*structs.Allocation{
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// Update the 1st
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&structs.Allocation{
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ID: structs.GenerateUUID(),
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NodeID: "zip",
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Name: "my-job.web[0]",
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Job: oldJob,
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},
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// Ignore the 2rd
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&structs.Allocation{
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ID: structs.GenerateUUID(),
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NodeID: "zip",
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Name: "my-job.web[1]",
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Job: job,
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},
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// Evict 11th
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&structs.Allocation{
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ID: structs.GenerateUUID(),
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NodeID: "zip",
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Name: "my-job.web[10]",
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},
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// Migrate the 3rd
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&structs.Allocation{
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ID: structs.GenerateUUID(),
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NodeID: "dead",
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Name: "my-job.web[2]",
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},
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}
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diff := diffAllocs(job, tainted, required, allocs)
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place := diff.place
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update := diff.update
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migrate := diff.migrate
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stop := diff.stop
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ignore := diff.ignore
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// We should update the first alloc
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if len(update) != 1 || update[0].Alloc != allocs[0] {
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t.Fatalf("bad: %#v", update)
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}
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// We should ignore the second alloc
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if len(ignore) != 1 || ignore[0].Alloc != allocs[1] {
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t.Fatalf("bad: %#v", ignore)
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}
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// We should stop the 3rd alloc
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if len(stop) != 1 || stop[0].Alloc != allocs[2] {
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t.Fatalf("bad: %#v", stop)
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}
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// We should migrate the 4rd alloc
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if len(migrate) != 1 || migrate[0].Alloc != allocs[3] {
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t.Fatalf("bad: %#v", migrate)
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}
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// We should place 7
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if len(place) != 7 {
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t.Fatalf("bad: %#v", place)
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}
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}
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func TestDiffSystemAllocs(t *testing.T) {
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job := mock.SystemJob()
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// Create three alive nodes.
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nodes := []*structs.Node{{ID: "foo"}, {ID: "bar"}, {ID: "baz"}}
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// The "old" job has a previous modify index
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oldJob := new(structs.Job)
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*oldJob = *job
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oldJob.ModifyIndex -= 1
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tainted := map[string]bool{
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"dead": true,
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"baz": false,
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}
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allocs := []*structs.Allocation{
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// Update allocation on baz
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&structs.Allocation{
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ID: structs.GenerateUUID(),
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NodeID: "baz",
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Name: "my-job.web[0]",
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Job: oldJob,
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},
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// Ignore allocation on bar
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&structs.Allocation{
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ID: structs.GenerateUUID(),
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NodeID: "bar",
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Name: "my-job.web[0]",
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Job: job,
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},
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// Stop allocation on dead.
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&structs.Allocation{
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ID: structs.GenerateUUID(),
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NodeID: "dead",
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Name: "my-job.web[0]",
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},
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}
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diff := diffSystemAllocs(job, nodes, tainted, allocs)
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place := diff.place
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update := diff.update
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migrate := diff.migrate
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stop := diff.stop
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ignore := diff.ignore
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// We should update the first alloc
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if len(update) != 1 || update[0].Alloc != allocs[0] {
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t.Fatalf("bad: %#v", update)
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}
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// We should ignore the second alloc
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if len(ignore) != 1 || ignore[0].Alloc != allocs[1] {
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t.Fatalf("bad: %#v", ignore)
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}
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// We should stop the third alloc
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if len(stop) != 1 || stop[0].Alloc != allocs[2] {
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t.Fatalf("bad: %#v", stop)
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}
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// There should be no migrates.
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if len(migrate) != 0 {
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t.Fatalf("bad: %#v", migrate)
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}
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// We should place 1
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if len(place) != 1 {
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t.Fatalf("bad: %#v", place)
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}
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}
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func TestReadyNodesInDCs(t *testing.T) {
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state, err := state.NewStateStore(os.Stderr)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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node1 := mock.Node()
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node2 := mock.Node()
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node2.Datacenter = "dc2"
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node3 := mock.Node()
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node3.Datacenter = "dc2"
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node3.Status = structs.NodeStatusDown
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node4 := mock.Node()
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node4.Drain = true
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noErr(t, state.UpsertNode(1000, node1))
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noErr(t, state.UpsertNode(1001, node2))
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noErr(t, state.UpsertNode(1002, node3))
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noErr(t, state.UpsertNode(1003, node4))
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nodes, err := readyNodesInDCs(state, []string{"dc1", "dc2"})
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if len(nodes) != 2 {
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t.Fatalf("bad: %v", nodes)
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}
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if nodes[0].ID == node3.ID || nodes[1].ID == node3.ID {
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t.Fatalf("Bad: %#v", nodes)
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}
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}
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func TestRetryMax(t *testing.T) {
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calls := 0
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bad := func() (bool, error) {
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calls += 1
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return false, nil
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}
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err := retryMax(3, bad)
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if err == nil {
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t.Fatalf("should fail")
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}
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if calls != 3 {
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t.Fatalf("mis match")
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}
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calls = 0
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good := func() (bool, error) {
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calls += 1
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return true, nil
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}
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err = retryMax(3, good)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if calls != 1 {
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t.Fatalf("mis match")
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}
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}
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func TestTaintedNodes(t *testing.T) {
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state, err := state.NewStateStore(os.Stderr)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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node1 := mock.Node()
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node2 := mock.Node()
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node2.Datacenter = "dc2"
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node3 := mock.Node()
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node3.Datacenter = "dc2"
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node3.Status = structs.NodeStatusDown
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node4 := mock.Node()
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node4.Drain = true
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noErr(t, state.UpsertNode(1000, node1))
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noErr(t, state.UpsertNode(1001, node2))
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noErr(t, state.UpsertNode(1002, node3))
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noErr(t, state.UpsertNode(1003, node4))
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allocs := []*structs.Allocation{
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&structs.Allocation{NodeID: node1.ID},
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&structs.Allocation{NodeID: node2.ID},
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&structs.Allocation{NodeID: node3.ID},
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&structs.Allocation{NodeID: node4.ID},
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&structs.Allocation{NodeID: "blah"},
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}
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tainted, err := taintedNodes(state, allocs)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if len(tainted) != 5 {
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t.Fatalf("bad: %v", tainted)
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}
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if tainted[node1.ID] || tainted[node2.ID] {
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t.Fatalf("Bad: %v", tainted)
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}
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if !tainted[node3.ID] || !tainted[node4.ID] || !tainted["blah"] {
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t.Fatalf("Bad: %v", tainted)
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}
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}
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func TestShuffleNodes(t *testing.T) {
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// Use a large number of nodes to make the probability of shuffling to the
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// original order very low.
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nodes := []*structs.Node{
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mock.Node(),
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mock.Node(),
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mock.Node(),
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mock.Node(),
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mock.Node(),
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mock.Node(),
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mock.Node(),
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mock.Node(),
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mock.Node(),
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mock.Node(),
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}
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orig := make([]*structs.Node, len(nodes))
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copy(orig, nodes)
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shuffleNodes(nodes)
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if reflect.DeepEqual(nodes, orig) {
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t.Fatalf("should not match")
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}
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}
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func TestTasksUpdated(t *testing.T) {
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j1 := mock.Job()
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j2 := mock.Job()
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if tasksUpdated(j1.TaskGroups[0], j2.TaskGroups[0]) {
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t.Fatalf("bad")
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}
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j2.TaskGroups[0].Tasks[0].Config["command"] = "/bin/other"
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if !tasksUpdated(j1.TaskGroups[0], j2.TaskGroups[0]) {
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t.Fatalf("bad")
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}
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j3 := mock.Job()
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j3.TaskGroups[0].Tasks[0].Name = "foo"
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if !tasksUpdated(j1.TaskGroups[0], j3.TaskGroups[0]) {
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t.Fatalf("bad")
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}
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j4 := mock.Job()
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j4.TaskGroups[0].Tasks[0].Driver = "foo"
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if !tasksUpdated(j1.TaskGroups[0], j4.TaskGroups[0]) {
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t.Fatalf("bad")
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}
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j5 := mock.Job()
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j5.TaskGroups[0].Tasks = append(j5.TaskGroups[0].Tasks,
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j5.TaskGroups[0].Tasks[0])
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if !tasksUpdated(j1.TaskGroups[0], j5.TaskGroups[0]) {
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t.Fatalf("bad")
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}
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j6 := mock.Job()
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j6.TaskGroups[0].Tasks[0].Resources.Networks[0].DynamicPorts = []structs.Port{{"http", 0}, {"https", 0}, {"admin", 0}}
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if !tasksUpdated(j1.TaskGroups[0], j6.TaskGroups[0]) {
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t.Fatalf("bad")
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}
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j7 := mock.Job()
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j7.TaskGroups[0].Tasks[0].Env["NEW_ENV"] = "NEW_VALUE"
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if !tasksUpdated(j1.TaskGroups[0], j7.TaskGroups[0]) {
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t.Fatalf("bad")
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}
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}
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func TestEvictAndPlace_LimitLessThanAllocs(t *testing.T) {
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_, ctx := testContext(t)
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allocs := []allocTuple{
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allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
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allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
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allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
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allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
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}
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diff := &diffResult{}
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limit := 2
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if !evictAndPlace(ctx, diff, allocs, "", &limit) {
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t.Fatal("evictAndReplace() should have returned true")
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}
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if limit != 0 {
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t.Fatalf("evictAndReplace() should decremented limit; got %v; want 0", limit)
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}
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if len(diff.place) != 2 {
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t.Fatalf("evictAndReplace() didn't insert into diffResult properly: %v", diff.place)
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}
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}
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func TestEvictAndPlace_LimitEqualToAllocs(t *testing.T) {
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_, ctx := testContext(t)
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allocs := []allocTuple{
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allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
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allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
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allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
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allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
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}
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diff := &diffResult{}
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limit := 4
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if evictAndPlace(ctx, diff, allocs, "", &limit) {
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t.Fatal("evictAndReplace() should have returned false")
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}
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if limit != 0 {
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t.Fatalf("evictAndReplace() should decremented limit; got %v; want 0", limit)
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}
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if len(diff.place) != 4 {
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t.Fatalf("evictAndReplace() didn't insert into diffResult properly: %v", diff.place)
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}
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}
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func TestSetStatus(t *testing.T) {
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h := NewHarness(t)
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logger := log.New(os.Stderr, "", log.LstdFlags)
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eval := mock.Eval()
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status := "a"
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desc := "b"
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if err := setStatus(logger, h, eval, nil, status, desc); err != nil {
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t.Fatalf("setStatus() failed: %v", err)
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}
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if len(h.Evals) != 1 {
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t.Fatalf("setStatus() didn't update plan: %v", h.Evals)
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}
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newEval := h.Evals[0]
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if newEval.ID != eval.ID || newEval.Status != status || newEval.StatusDescription != desc {
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t.Fatalf("setStatus() submited invalid eval: %v", newEval)
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}
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h = NewHarness(t)
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next := mock.Eval()
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if err := setStatus(logger, h, eval, next, status, desc); err != nil {
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t.Fatalf("setStatus() failed: %v", err)
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}
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if len(h.Evals) != 1 {
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t.Fatalf("setStatus() didn't update plan: %v", h.Evals)
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}
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newEval = h.Evals[0]
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if newEval.NextEval != next.ID {
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t.Fatalf("setStatus() didn't set nextEval correctly: %v", newEval)
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}
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}
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func TestInplaceUpdate_ChangedTaskGroup(t *testing.T) {
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state, ctx := testContext(t)
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eval := mock.Eval()
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job := mock.Job()
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node := mock.Node()
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noErr(t, state.UpsertNode(1000, node))
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// Register an alloc
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alloc := &structs.Allocation{
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ID: structs.GenerateUUID(),
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EvalID: eval.ID,
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NodeID: node.ID,
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JobID: job.ID,
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Job: job,
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Resources: &structs.Resources{
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CPU: 2048,
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MemoryMB: 2048,
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},
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DesiredStatus: structs.AllocDesiredStatusRun,
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}
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alloc.TaskResources = map[string]*structs.Resources{"web": alloc.Resources}
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noErr(t, state.UpsertAllocs(1001, []*structs.Allocation{alloc}))
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// Create a new task group that prevents in-place updates.
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tg := &structs.TaskGroup{}
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*tg = *job.TaskGroups[0]
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task := &structs.Task{Name: "FOO"}
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tg.Tasks = nil
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tg.Tasks = append(tg.Tasks, task)
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updates := []allocTuple{{Alloc: alloc, TaskGroup: tg}}
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stack := NewGenericStack(false, ctx)
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// Do the inplace update.
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unplaced := inplaceUpdate(ctx, eval, job, stack, updates)
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if len(unplaced) != 1 {
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t.Fatal("inplaceUpdate incorrectly did an inplace update")
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}
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if len(ctx.plan.NodeAllocation) != 0 {
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t.Fatal("inplaceUpdate incorrectly did an inplace update")
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}
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}
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func TestInplaceUpdate_NoMatch(t *testing.T) {
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state, ctx := testContext(t)
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eval := mock.Eval()
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job := mock.Job()
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node := mock.Node()
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noErr(t, state.UpsertNode(1000, node))
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// Register an alloc
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alloc := &structs.Allocation{
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ID: structs.GenerateUUID(),
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EvalID: eval.ID,
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NodeID: node.ID,
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JobID: job.ID,
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Job: job,
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Resources: &structs.Resources{
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CPU: 2048,
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MemoryMB: 2048,
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},
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DesiredStatus: structs.AllocDesiredStatusRun,
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}
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alloc.TaskResources = map[string]*structs.Resources{"web": alloc.Resources}
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noErr(t, state.UpsertAllocs(1001, []*structs.Allocation{alloc}))
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// Create a new task group that requires too much resources.
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tg := &structs.TaskGroup{}
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*tg = *job.TaskGroups[0]
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resource := &structs.Resources{CPU: 9999}
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tg.Tasks[0].Resources = resource
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updates := []allocTuple{{Alloc: alloc, TaskGroup: tg}}
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stack := NewGenericStack(false, ctx)
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// Do the inplace update.
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unplaced := inplaceUpdate(ctx, eval, job, stack, updates)
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if len(unplaced) != 1 {
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t.Fatal("inplaceUpdate incorrectly did an inplace update")
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}
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if len(ctx.plan.NodeAllocation) != 0 {
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t.Fatal("inplaceUpdate incorrectly did an inplace update")
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}
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}
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func TestInplaceUpdate_Success(t *testing.T) {
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state, ctx := testContext(t)
|
|
eval := mock.Eval()
|
|
job := mock.Job()
|
|
|
|
node := mock.Node()
|
|
noErr(t, state.UpsertNode(1000, node))
|
|
|
|
// Register an alloc
|
|
alloc := &structs.Allocation{
|
|
ID: structs.GenerateUUID(),
|
|
EvalID: eval.ID,
|
|
NodeID: node.ID,
|
|
JobID: job.ID,
|
|
Job: job,
|
|
Resources: &structs.Resources{
|
|
CPU: 2048,
|
|
MemoryMB: 2048,
|
|
},
|
|
DesiredStatus: structs.AllocDesiredStatusRun,
|
|
}
|
|
alloc.TaskResources = map[string]*structs.Resources{"web": alloc.Resources}
|
|
noErr(t, state.UpsertAllocs(1001, []*structs.Allocation{alloc}))
|
|
|
|
// Create a new task group that updates the resources.
|
|
tg := &structs.TaskGroup{}
|
|
*tg = *job.TaskGroups[0]
|
|
resource := &structs.Resources{CPU: 737}
|
|
tg.Tasks[0].Resources = resource
|
|
|
|
updates := []allocTuple{{Alloc: alloc, TaskGroup: tg}}
|
|
stack := NewGenericStack(false, ctx)
|
|
stack.SetJob(job)
|
|
|
|
// Do the inplace update.
|
|
unplaced := inplaceUpdate(ctx, eval, job, stack, updates)
|
|
|
|
if len(unplaced) != 0 {
|
|
t.Fatal("inplaceUpdate did not do an inplace update")
|
|
}
|
|
|
|
if len(ctx.plan.NodeAllocation) != 1 {
|
|
t.Fatal("inplaceUpdate did not do an inplace update")
|
|
}
|
|
}
|
|
|
|
func TestEvictAndPlace_LimitGreaterThanAllocs(t *testing.T) {
|
|
_, ctx := testContext(t)
|
|
allocs := []allocTuple{
|
|
allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
|
|
allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
|
|
allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
|
|
allocTuple{Alloc: &structs.Allocation{ID: structs.GenerateUUID()}},
|
|
}
|
|
diff := &diffResult{}
|
|
|
|
limit := 6
|
|
if evictAndPlace(ctx, diff, allocs, "", &limit) {
|
|
t.Fatal("evictAndReplace() should have returned false")
|
|
}
|
|
|
|
if limit != 2 {
|
|
t.Fatalf("evictAndReplace() should decremented limit; got %v; want 2", limit)
|
|
}
|
|
|
|
if len(diff.place) != 4 {
|
|
t.Fatalf("evictAndReplace() didn't insert into diffResult properly: %v", diff.place)
|
|
}
|
|
}
|
|
|
|
func TestTaskGroupConstraints(t *testing.T) {
|
|
constr := &structs.Constraint{RTarget: "bar"}
|
|
constr2 := &structs.Constraint{LTarget: "foo"}
|
|
constr3 := &structs.Constraint{Operand: "<"}
|
|
|
|
tg := &structs.TaskGroup{
|
|
Name: "web",
|
|
Count: 10,
|
|
Constraints: []*structs.Constraint{constr},
|
|
Tasks: []*structs.Task{
|
|
&structs.Task{
|
|
Driver: "exec",
|
|
Resources: &structs.Resources{
|
|
CPU: 500,
|
|
MemoryMB: 256,
|
|
},
|
|
Constraints: []*structs.Constraint{constr2},
|
|
},
|
|
&structs.Task{
|
|
Driver: "docker",
|
|
Resources: &structs.Resources{
|
|
CPU: 500,
|
|
MemoryMB: 256,
|
|
},
|
|
Constraints: []*structs.Constraint{constr3},
|
|
},
|
|
},
|
|
}
|
|
|
|
// Build the expected values.
|
|
expConstr := []*structs.Constraint{constr, constr2, constr3}
|
|
expDrivers := map[string]struct{}{"exec": struct{}{}, "docker": struct{}{}}
|
|
expSize := &structs.Resources{
|
|
CPU: 1000,
|
|
MemoryMB: 512,
|
|
}
|
|
|
|
actConstrains := taskGroupConstraints(tg)
|
|
if !reflect.DeepEqual(actConstrains.constraints, expConstr) {
|
|
t.Fatalf("taskGroupConstraints(%v) returned %v; want %v", tg, actConstrains.constraints, expConstr)
|
|
}
|
|
if !reflect.DeepEqual(actConstrains.drivers, expDrivers) {
|
|
t.Fatalf("taskGroupConstraints(%v) returned %v; want %v", tg, actConstrains.drivers, expDrivers)
|
|
}
|
|
if !reflect.DeepEqual(actConstrains.size, expSize) {
|
|
t.Fatalf("taskGroupConstraints(%v) returned %v; want %v", tg, actConstrains.size, expSize)
|
|
}
|
|
|
|
}
|