jochen
981a35b598
A delivery that replaced mesh-build-go left a check ask's key running, and the new process's start sweep spared it as an ask younger than the step bound, so it held a build slot until a hand end (issue 1890, note 21). Each step now records its owner (boot id, pid, process start); the sweep ends a running step of another owner at once and says its owner, while a key with no owner keeps the earlier rule. The conformance kit gains the left-running case every build module runs through its own start sweep.
439 lines
18 KiB
Go
439 lines
18 KiB
Go
package buildstep
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"strings"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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stdio "git.novox.be/novox/mesh-sdk/go"
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"git.novox.be/novox/mesh-sdk/go/delivery"
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)
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// steps records a steps state's puts: the last value of each key.
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type steps struct {
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mu sync.Mutex
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keys map[string]delivery.Step
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}
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func newSteps() *steps { return &steps{keys: map[string]delivery.Step{}} }
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func (s *steps) put(key string, value any) (uint64, error) {
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raw, _ := value.(json.RawMessage)
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st, err := delivery.DecodeStep(raw)
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if err != nil {
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return 0, err
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}
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s.mu.Lock()
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s.keys[key] = st
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s.mu.Unlock()
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return 1, nil
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}
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func (s *steps) get(key string) (delivery.Step, bool) {
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s.mu.Lock()
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defer s.mu.Unlock()
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st, ok := s.keys[key]
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return st, ok
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}
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func testAsk(kind string) delivery.StepAsk {
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id := NewID()
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a := delivery.StepAsk{ID: id, Kind: kind, Language: delivery.AskGo, Asker: "mesh-delivery-builder", At: time.Now()}
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fetch := map[string]any{"repository": "novox/x", "commit": "0123456789abcdef0123456789abcdef01234567"}
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if kind == delivery.AskDelivery {
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b := buildJobFixture
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b.Fetch = fetch
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a.Build = &b
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} else {
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a.Check = &delivery.CheckJob{Fetch: fetch, Levels: []string{delivery.LevelUnit}}
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}
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return a
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}
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var buildJobFixture = delivery.BuildJob{Module: "m", Path: ".", Artifacts: []delivery.AskArtifact{{Artifact: "bundle"}}}
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func waitFor(t *testing.T, what string, cond func() bool) {
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t.Helper()
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deadline := time.Now().Add(2 * time.Second)
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for !cond() {
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if time.Now().After(deadline) {
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t.Fatalf("waited 2 s for %s", what)
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}
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time.Sleep(time.Millisecond)
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}
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}
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// 1887/A2a: given a check ask published before a delivery ask and one slot, the delivery ask runs first.
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func TestPullTakesDeliveryBeforeCheck(t *testing.T) {
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src, st := NewFakeAsks(), newSteps()
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check, recheck, deliver := testAsk(delivery.AskCheck), testAsk(delivery.AskRecheck), testAsk(delivery.AskDelivery)
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for _, a := range []delivery.StepAsk{recheck, check, deliver} {
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if err := src.PublishAsk(a); err != nil {
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t.Fatal(err)
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}
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}
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var mu sync.Mutex
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var order []string
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p := &Puller{Source: src, Language: delivery.AskGo, Node: "shanks", Put: st.put, Capacity: func() int { return 1 },
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PullWait: 10 * time.Millisecond, Run: func(ctx context.Context, a delivery.StepAsk) (any, error) {
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mu.Lock()
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order = append(order, a.Kind)
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mu.Unlock()
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return map[string]string{"ran": a.ID}, nil
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}}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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go p.Pull(ctx)
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waitFor(t, "three asks acked", func() bool { a, _, _ := src.Fates(); return len(a) == 3 })
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mu.Lock()
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defer mu.Unlock()
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if want := []string{delivery.AskDelivery, delivery.AskCheck, delivery.AskRecheck}; len(order) != 3 || order[0] != want[0] || order[1] != want[1] || order[2] != want[2] {
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t.Fatalf("order = %v, want %v", order, want)
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}
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key, _ := delivery.AskStepKey("shanks", deliver.ID)
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s, ok := st.get(key)
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if !ok || s.State != delivery.StepPassed || string(s.Result) != `{"ran":"`+deliver.ID+`"}` {
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t.Fatalf("the step %s = %+v (%v)", key, s, ok)
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}
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}
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// 1887/A2a, 1887/AC-pull: given capacity 2 and three asks waiting, two run and the third waits, and it starts when
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// one ends, with no timer. Issue 1806's follow-up: the 2 is the CPU's, a configured 3 bounded by a 12-core slice at 6
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// cores a step, said once in capacity.<node>; and issue 1890: a run's phase is written to its step key and logged with
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// its ask id, and its end keeps the last phase.
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func TestPullHoldsAtMostItsCapacity(t *testing.T) {
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src, st := NewFakeAsks(), newSteps()
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asks := []delivery.StepAsk{}
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for i := 0; i < 3; i++ {
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a := testAsk(delivery.AskDelivery)
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asks = append(asks, a)
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_ = src.PublishAsk(a)
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}
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release := make(chan struct{})
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var mu sync.Mutex
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started := 0
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var said []string
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capacities := map[string][]byte{}
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quota := 1200
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p := &Puller{Source: src, Language: delivery.AskGo, Node: "shanks", Put: st.put, Capacity: func() int { return 3 },
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CoresPerStep: func() float64 { return 6 },
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Quota: func() (int, string) { mu.Lock(); defer mu.Unlock(); return quota, "a test's slice" },
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PausePut: func(key string, v any) (uint64, error) {
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mu.Lock()
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capacities[key] = v.(json.RawMessage)
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mu.Unlock()
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return 1, nil
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},
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Logf: func(f string, a ...any) { mu.Lock(); said = append(said, fmt.Sprintf(f, a...)); mu.Unlock() },
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PullWait: 10 * time.Millisecond, Run: func(ctx context.Context, a delivery.StepAsk) (any, error) {
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mu.Lock()
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started++
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mu.Unlock()
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Phase(ctx, "unit: tests of 3 packages")
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<-release
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return nil, nil
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}}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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go p.Pull(ctx)
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waitFor(t, "two in hand", func() bool { return p.InHand() == 2 })
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time.Sleep(30 * time.Millisecond) // three pull waits: the third must still wait
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if p.InHand() != 2 || src.Waiting(delivery.AskDelivery) != 1 {
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t.Fatalf("in hand %d, waiting %d; want 2 and 1", p.InHand(), src.Waiting(delivery.AskDelivery))
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}
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c := p.CapacityDetail()
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if c.Effective != 2 || c.Configured != 3 || c.ByCPU != 2 || c.QuotaCores != 12 || !strings.Contains(c.Why, "bounded by the CPU") {
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t.Fatalf("the capacity judged by = %+v, want 2 of a configured 3 bounded by 12 cores / 6", c)
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}
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mu.Lock()
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raw := capacities["capacity.shanks"]
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capLines := 0
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for _, l := range said {
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if strings.Contains(l, "build capacity of shanks is 2, bounded by the CPU") {
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capLines++
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}
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}
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mu.Unlock()
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if got, err := delivery.DecodeCapacity(raw); err != nil || got.Effective != 2 || capLines != 1 {
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t.Fatalf("capacity.shanks = %s (%v), said %d times; want effective 2, said once", raw, err, capLines)
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}
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waitFor(t, "a phase on the step key", func() bool {
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key, _ := delivery.AskStepKey("shanks", p.Running()[0].ID)
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s, _ := st.get(key)
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return s.State == delivery.StepRunning && s.Phase == "unit: tests of 3 packages" && !s.PhaseAt.IsZero() && s.Owner == Owner // 1890/AC5
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})
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release <- struct{}{}
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waitFor(t, "the third taken", func() bool { return src.Waiting(delivery.AskDelivery) == 0 })
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// Taken from the source comes a moment before its run starts: wait for the start, not only the take.
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waitFor(t, "the third started", func() bool { mu.Lock(); defer mu.Unlock(); return started == 3 })
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close(release)
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waitFor(t, "all acked", func() bool { a, _, _ := src.Fates(); return len(a) == 3 })
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for _, a := range asks {
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key, _ := delivery.AskStepKey("shanks", a.ID)
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if s, _ := st.get(key); s.State != delivery.StepPassed || s.Phase != "unit: tests of 3 packages" || s.Owner != Owner {
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t.Errorf("the end of %s = %+v, want passed in its last phase", a.ID, s)
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}
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}
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mu.Lock()
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logged := strings.Join(said, "\n")
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quota = 600 // the cap lowered: one step at 6 cores, followed at the next judgement
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mu.Unlock()
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if !strings.Contains(logged, "the delivery ask "+asks[0].ID+" on shanks: unit: tests of 3 packages") {
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t.Errorf("no journal line names the ask's phase: %s", logged)
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}
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if c := p.CapacityDetail(); c.Effective != 1 {
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t.Errorf("after the quota fell to 6 cores, capacity %+v, want 1", c)
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}
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}
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// An ask that is not one, or not this seat's, is dropped and runs nowhere. And issue 890/AC1: a check ask needing
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// node-build-node is declined on a node that lacks it (its step refused as declined, naming what it lacks, the message
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// dropped for the asker to put again), and runs on a node that has it.
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func TestPullDropsWhatIsNoAsk(t *testing.T) {
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src, st := NewFakeAsks(), newSteps()
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src.Publish(delivery.AskDelivery, []byte(`{"v":1}`))
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other := testAsk(delivery.AskDelivery)
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other.Language = delivery.AskNode
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_ = src.PublishAsk(other)
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placed := testAsk(delivery.AskCheck)
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placed.Needs = []string{delivery.NeedNodeBuildNode}
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if err := src.PublishAsk(placed); err != nil {
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t.Fatal(err)
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}
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ran := false
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p := &Puller{Source: src, Language: delivery.AskGo, Node: "ace", Put: st.put, Capacity: func() int { return 1 },
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PullWait: 10 * time.Millisecond, Run: func(ctx context.Context, a delivery.StepAsk) (any, error) { ran = true; return nil, nil }}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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go p.Pull(ctx)
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waitFor(t, "three termed", func() bool { _, tm, _ := src.Fates(); return len(tm) == 3 })
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if ran {
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t.Fatal("a wrong or a declined ask ran")
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}
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key, _ := delivery.AskStepKey("ace", placed.ID)
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s, _ := st.get(key)
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if d, ok := delivery.DeclinedOf(s); !ok || len(d.Lacks) != 1 || d.Lacks[0] != delivery.NeedNodeBuildNode || !strings.Contains(s.Reason, "lacks node-build-node") {
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t.Fatalf("the declined step = %+v", s)
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}
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has, hasSteps := NewFakeAsks(), newSteps()
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_ = has.PublishAsk(placed)
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q := &Puller{Source: has, Language: delivery.AskGo, Node: "g14", Put: hasSteps.put, Capacity: func() int { return 1 },
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PullWait: 10 * time.Millisecond, Has: func(n string) bool { return n == delivery.NeedNodeBuildNode },
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Run: func(ctx context.Context, a delivery.StepAsk) (any, error) { return nil, nil }}
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go q.Pull(ctx)
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waitFor(t, "the placed ask acked where its need is met", func() bool { a, _, _ := has.Fates(); return len(a) == 1 })
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}
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// load reads the recorded steps state's raw values: the pause key is not a step, so it is kept apart.
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type kv struct {
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mu sync.Mutex
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vals map[string][]byte
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}
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func (k *kv) put(key string, value any) (uint64, error) {
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raw, _ := value.(json.RawMessage)
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k.mu.Lock()
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defer k.mu.Unlock()
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if k.vals == nil {
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k.vals = map[string][]byte{}
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}
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k.vals[key] = append([]byte(nil), raw...)
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return 1, nil
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}
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func (k *kv) load(key string) ([]byte, error) {
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k.mu.Lock()
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defer k.mu.Unlock()
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return k.vals[key], nil
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}
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// 1887/A2b, 1887/AC-zero, 1887/AC-wake: at capacity 0 the puller takes nothing; a capacity raised takes effect at the
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// next pull, or, with the config watch (g14 idle at capacity 2, 2026-10-25), at once when the value moves, with no
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// pause, resume or step end to wake it; a refused value pulls nothing, and a watch that cannot start leaves the
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// settings file's capacity.
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func TestPullAtCapacityZeroTakesNothing(t *testing.T) {
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t.Run("settings file", func(t *testing.T) {
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src, st := NewFakeAsks(), &kv{}
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_ = src.PublishAsk(testAsk(delivery.AskDelivery))
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var mu sync.Mutex
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capacity := 0
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p := &Puller{Source: src, Language: delivery.AskGo, Node: "novox", Put: st.put, PullWait: 10 * time.Millisecond,
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Capacity: func() int { mu.Lock(); defer mu.Unlock(); return capacity },
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Run: func(ctx context.Context, a delivery.StepAsk) (any, error) { return nil, nil }}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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go p.Pull(ctx)
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time.Sleep(50 * time.Millisecond)
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if src.Waiting(delivery.AskDelivery) != 1 {
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t.Fatal("a node at capacity 0 took an ask")
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}
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mu.Lock()
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capacity = 1
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mu.Unlock()
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p.Wake()
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waitFor(t, "the ask taken at capacity 1", func() bool { a, _, _ := src.Fates(); return len(a) == 1 })
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})
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t.Run("config watch wakes", func(t *testing.T) {
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src, st := NewFakeAsks(), newSteps()
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_ = src.PublishAsk(testAsk(delivery.AskDelivery))
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w := &configWatch{value: "shanks=3,g14=0"}
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p := &Puller{Source: src, Language: delivery.AskGo, Node: "g14", Put: st.put, PullWait: 10 * time.Millisecond,
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Capacity: func() int { return 0 }, // the settings file, not refilled yet
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WatchConfig: w.watch,
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Run: func(ctx context.Context, a delivery.StepAsk) (any, error) { return nil, nil }}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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go p.Pull(ctx)
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waitFor(t, "the watch of the capacity", func() bool { w.mu.Lock(); defer w.mu.Unlock(); return w.handle != nil })
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time.Sleep(30 * time.Millisecond)
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if src.Waiting(delivery.AskDelivery) != 1 {
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t.Fatal("a node at capacity 0 took an ask")
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}
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if w.asked != CapacitySetting {
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t.Fatalf("the puller watches %q, want %q", w.asked, CapacitySetting)
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}
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w.set(t, "shanks=3,g14=2")
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waitFor(t, "the ask taken once the capacity moved to 2", func() bool { a, _, _ := src.Fates(); return len(a) == 1 })
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})
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for _, c := range []struct {
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name string
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watch func(string, func(stdio.ProvisionChange) error) error
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room bool
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}{
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{"refused value leaves no room", func(key string, handle func(stdio.ProvisionChange) error) error {
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return handle(stdio.ProvisionChange{Kind: "config", Key: key, Refused: "the module is no longer on g14"})
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}, false},
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{"watch that cannot start keeps the settings file", func(string, func(stdio.ProvisionChange) error) error {
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return errors.New("no runtime")
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}, true},
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} {
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t.Run(c.name, func(t *testing.T) {
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p := &Puller{Source: NewFakeAsks(), Language: delivery.AskGo, Node: "g14", Put: newSteps().put,
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Capacity: func() int { return 1 }, WatchConfig: c.watch,
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Run: func(ctx context.Context, a delivery.StepAsk) (any, error) { return nil, nil }}
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p.watchCapacity()
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if p.room() != c.room {
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t.Fatalf("room = %v, want %v", p.room(), c.room)
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}
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})
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}
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}
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// 1887/A2b: a paused puller takes nothing, its pause is kept on the pause key, and a puller started again on that state
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// stays paused until resumed.
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func TestPullPauseOutlivesARestart(t *testing.T) {
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src, st, steps := NewFakeAsks(), &kv{}, &kv{}
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run := func(ctx context.Context, a delivery.StepAsk) (any, error) { return nil, nil }
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p := &Puller{Source: src, Language: delivery.AskGo, Node: "shanks", Put: steps.put, PausePut: st.put, Load: st.load,
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PullWait: 10 * time.Millisecond, Capacity: func() int { return 2 }, Run: run}
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if err := p.Pause("the operator"); err != nil {
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t.Fatal(err)
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}
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key, _ := delivery.PauseKey("shanks")
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raw, _ := st.load(key)
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if v, err := delivery.DecodePause(raw); err != nil || !v.Paused || v.By != "the operator" {
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t.Fatalf("the pause key holds %s (%v)", raw, err)
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}
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if raw, _ := steps.load(key); raw != nil {
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t.Fatalf("the pause was written in the steps state, whose keys age out: %s", raw)
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}
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// The restart: a new puller on the same state.
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again := &Puller{Source: src, Language: delivery.AskGo, Node: "shanks", Put: steps.put, PausePut: st.put, Load: st.load,
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PullWait: 10 * time.Millisecond, Capacity: func() int { return 2 }, Run: run}
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_ = src.PublishAsk(testAsk(delivery.AskDelivery))
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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go again.Pull(ctx)
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time.Sleep(50 * time.Millisecond)
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if !again.Paused() || src.Waiting(delivery.AskDelivery) != 1 {
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t.Fatalf("restarted: paused %v, waiting %d; want paused and 1", again.Paused(), src.Waiting(delivery.AskDelivery))
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}
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if err := again.Resume("the operator"); err != nil {
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t.Fatal(err)
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}
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waitFor(t, "the ask taken after the resume", func() bool { a, _, _ := src.Fates(); return len(a) == 1 })
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t.Run("a pause that cannot be read is said and pulled as not paused", func(t *testing.T) {
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src := NewFakeAsks()
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var said atomic.Value
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p := &Puller{Source: src, Language: delivery.AskGo, Node: "shanks", Put: steps.put, PausePut: st.put,
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Load: func(string) ([]byte, error) { return nil, errors.New("no runtime yet") },
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PullWait: 10 * time.Millisecond, Capacity: func() int { return 2 }, Run: run,
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Logf: func(f string, a ...any) {
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if m := fmt.Sprintf(f, a...); strings.Contains(m, "cannot be read") {
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said.Store(m)
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}
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}}
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_ = src.PublishAsk(testAsk(delivery.AskDelivery))
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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go p.Pull(ctx)
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waitFor(t, "the ask taken", func() bool { a, _, _ := src.Fates(); return len(a) == 1 })
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if m, _ := said.Load().(string); !strings.Contains(m, "pulling as not paused") {
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t.Fatalf("the unreadable pause was not said: %q", m)
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}
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})
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}
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// 1887/A2c: a long step tells the bus it is still being worked; a holder that stops mid-step neither ends nor
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// acknowledges its ask, so the stream gives it to another node.
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func TestPullHeartbeatAndStop(t *testing.T) {
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src, st := NewFakeAsks(), newSteps()
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a := testAsk(delivery.AskDelivery)
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_ = src.PublishAsk(a)
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running := make(chan struct{})
|
|
p := &Puller{Source: src, Language: delivery.AskGo, Node: "shanks", Put: st.put, Capacity: func() int { return 1 },
|
|
PullWait: 10 * time.Millisecond, Heartbeat: 5 * time.Millisecond,
|
|
Run: func(ctx context.Context, a delivery.StepAsk) (any, error) {
|
|
close(running)
|
|
<-ctx.Done()
|
|
return nil, ctx.Err()
|
|
}}
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
stopped := make(chan struct{})
|
|
go func() { p.Pull(ctx); close(stopped) }()
|
|
<-running
|
|
waitFor(t, "two heartbeats", func() bool { src.mu.Lock(); defer src.mu.Unlock(); return src.InProgress >= 2 })
|
|
cancel()
|
|
<-stopped
|
|
waitFor(t, "the step's goroutine gone", func() bool { return p.InHand() == 0 })
|
|
acked, termed, naked := src.Fates()
|
|
if len(acked)+len(termed)+len(naked) != 0 {
|
|
t.Fatalf("a stopped holder gave its ask a fate: acked %v termed %v naked %v", acked, termed, naked)
|
|
}
|
|
key, _ := delivery.AskStepKey("shanks", a.ID)
|
|
if s, ok := st.get(key); !ok || s.State != delivery.StepRunning {
|
|
t.Fatalf("the step %s = %+v, want left running", key, s)
|
|
}
|
|
}
|
|
|
|
// 1907: an ask taken past AskRuns (each run took its node down) is run no more: its step ends failed saying why, so the
|
|
// asker's key fails, and it is ended on the stream, not offered to another node.
|
|
func TestAPoisonedAskIsSaidAndRunNoMore(t *testing.T) {
|
|
src, st := NewFakeAsks(), newSteps()
|
|
src.Delivered = delivery.AskRuns + 1
|
|
a := testAsk(delivery.AskDelivery)
|
|
_ = src.PublishAsk(a)
|
|
ran := false
|
|
p := &Puller{Source: src, Language: delivery.AskGo, Node: "shanks", Put: st.put, Capacity: func() int { return 1 },
|
|
PullWait: 10 * time.Millisecond, Run: func(ctx context.Context, a delivery.StepAsk) (any, error) { ran = true; return nil, nil }}
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
go p.Pull(ctx)
|
|
waitFor(t, "the ask termed", func() bool { _, tm, _ := src.Fates(); return len(tm) == 1 })
|
|
key, _ := delivery.AskStepKey("shanks", a.ID)
|
|
s, ok := st.get(key)
|
|
if ran || !ok || s.State != delivery.StepFailed || !strings.Contains(s.Reason, "taken 3 times") || !strings.Contains(s.Reason, "poison") {
|
|
t.Fatalf("ran %v, step %+v", ran, s)
|
|
}
|
|
if acked, _, naked := src.Fates(); len(acked)+len(naked) != 0 {
|
|
t.Errorf("acked %v naked %v, want it termed alone", acked, naked)
|
|
}
|
|
}
|