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Merge pull request 'Count a node's toolchain report only while its build module is assigned there, so a removed node no longer makes builders disagree (issue 1940)' (#34) from fix/1940-stale-toolchain into main

Browse Source 
Reviewed-on: #34
This commit was merged in pull request #34.
This commit is contained in:
jschoubben
2026-10-24 11:10:45 +00:00
parent d8b19cb332 3553cbaf08
commit 42d880f075
18 changed files with 1007 additions and 16 deletions
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modules/mesh-delivery-builder/cmd/mesh-delivery-builder/main.go
+10
View File
@@ -196,6 +196,14 @@ func run(ctx context.Context, getenv func(string) string, logOut io.Writer) erro
}
// The toolchains first, so a build that starts from the first modules value finds the nodes.
watch := newToolchainWatch(ctx, js, tools, b.NodesChanged, logger)
// Only the toolchain reports of nodes the build module is assigned to count (issue 1940): the controller's
// assignments are settled first, so the toolchains settle through the gate already knowing them.
gate := newToolchainGate([]string{buildrun.GoBuildModule, buildrun.NodeBuildModule}, tools.Put, logger.Printf)
watch.put = gate.Toolchain
assignErrs, err := watchAssignments(ctx, js, gate, b.NodesChanged, logger)
if err != nil {
return err
}
if err := watch.start(); err != nil {
return err
}
@@ -268,6 +276,8 @@ func run(ctx context.Context, getenv func(string) string, logOut io.Writer) erro
return nil
case err := <-errs:
return err
case err := <-assignErrs:
return err
case err := <-watch.errs:
return err
}
modules/mesh-delivery-builder/cmd/mesh-delivery-builder/standing.go
+174
View File
@@ -0,0 +1,174 @@
package main
// This file is the same in mesh-delivery-indexer, mesh-delivery-builder and mesh-delivery-checker (issue 1940): it moves
// to mesh-sdk go/delivery/buildrun once mesh-sdk can be delivered again, since a change of mesh-sdk waits on the very
// toolchain agreement this file repairs.
import (
"context"
"encoding/json"
"fmt"
"log"
"maps"
"slices"
"strings"
"sync"
"time"
"github.com/nats-io/nats.go/jetstream"
"git.novox.be/novox/mesh-sdk/go/delivery"
"git.novox.be/novox/mesh-sdk/go/provider"
)
// A build module writes <node>.<language> of its toolchains state on every node it runs on, and nothing deletes the key
// when the module is unassigned from a node: the controller writes no module's state, and the module is gone. A report of
// a node the build module no longer runs on is therefore not a builder (issue 1940: mesh-build-node unassigned from ace
// on 2026-10-23 left ace.typescript at v26.12.0, and every Node fingerprint said "builders disagree").
//
// toolchainGate stands between the toolchains buckets and what takes their entries in (the indexer's PutToolchain, a
// buildrun.ToolchainSet): an entry is passed on only while the controller's assignments (mesh-controller_assignments,
// key <node>.<module>) hold an open assignment of its build module on its node; it is passed on as deleted otherwise,
// and passed on again when the module is assigned there again. Until the assignments are settled (or where they cannot
// be read) every entry is passed on, as before. Builders that run and report different versions still disagree: that
// refusal is the guard of novox/hq ADR 0465, and it stays.
type toolchainGate struct {
mu sync.Mutex
modules map[string]bool // the build modules whose toolchains pass the gate
forward func(module, key string, value []byte, deleted bool) bool // answers whether it changed what it holds
logf func(format string, a ...any)
known bool // the assignments are settled
standing map[string]bool // <node>.<module> with an open assignment
raw map[string]map[string][]byte // module -> toolchains key -> value, as the bucket holds it
left map[string]bool // <module>/<key> said as left out, so it is said once
}
func newToolchainGate(modules []string, forward func(module, key string, value []byte, deleted bool) bool, logf func(string, ...any)) *toolchainGate {
g := &toolchainGate{modules: map[string]bool{}, forward: forward, logf: logf, standing: map[string]bool{},
raw: map[string]map[string][]byte{}, left: map[string]bool{}}
for _, m := range modules {
g.modules[m] = true
}
return g
}
// Toolchain takes one change of a build module's toolchains bucket in and answers whether what it passed on changed.
func (g *toolchainGate) Toolchain(module, key string, value []byte, deleted bool) bool {
g.mu.Lock()
defer g.mu.Unlock()
if g.raw[module] == nil {
g.raw[module] = map[string][]byte{}
}
if deleted {
delete(g.raw[module], key)
} else {
g.raw[module][key] = value
}
return g.pass(module, key)
}
// Assignment takes one change of the controller's assignments in and answers whether what it passed on changed.
func (g *toolchainGate) Assignment(key string, value []byte, deleted bool) bool {
node, module, ok := strings.Cut(key, ".")
if !ok || !g.modules[module] {
return false
}
open := !deleted && openAssignment(value)
g.mu.Lock()
defer g.mu.Unlock()
if g.standing[key] == open {
return false
}
if open {
g.standing[key] = true
} else {
delete(g.standing, key)
}
if !g.known {
return false
}
changed := false
for _, k := range slices.Sorted(maps.Keys(g.raw[module])) {
if n, _, err := delivery.ParseToolchainKey(k); err == nil && n == node {
changed = g.pass(module, k) || changed
}
}
return changed
}
// Settled says the assignments are read: from now on only the reports of assigned nodes pass. It answers whether what it
// passed on changed.
func (g *toolchainGate) Settled() bool {
g.mu.Lock()
defer g.mu.Unlock()
g.known = true
changed := false
for _, module := range slices.Sorted(maps.Keys(g.raw)) {
for _, k := range slices.Sorted(maps.Keys(g.raw[module])) {
changed = g.pass(module, k) || changed
}
}
return changed
}
// pass hands one key on as it stands: its value when its node is assigned (or the assignments are not known), deleted
// otherwise. The caller holds mu.
func (g *toolchainGate) pass(module, key string) bool {
value, held := g.raw[module][key]
if !held {
return g.forward(module, key, nil, true)
}
node, _, err := delivery.ParseToolchainKey(key)
if err != nil || !g.known || g.standing[node+"."+module] {
delete(g.left, module+"/"+key)
return g.forward(module, key, value, false)
}
if !g.left[module+"/"+key] {
g.left[module+"/"+key] = true
g.logf("%s.%s is left out of the agreed toolchain: %s has no assignment on %s, so it is no builder (issue 1940)",
delivery.ToolchainsBucket(module), key, module, node)
}
return g.forward(module, key, nil, true)
}
// openAssignment is whether a value of the controller's assignments holds an assignment that stands: one that has not
// ended and has no state (a pending one is not on the machine yet; mesh-controller internal/chain Assignment).
func openAssignment(value []byte) bool {
var a struct {
Ended time.Time `json:"ended"`
State string `json:"state"`
}
if json.Unmarshal(value, &a) != nil {
return false
}
return a.Ended.IsZero() && a.State == ""
}
// watchAssignments settles the controller's assignments into the gate, says them settled, and follows them; changed is
// told whenever what the gate passes on changed. Where the bucket cannot be read (not there, or this module may not read
// it) it says so and the gate passes every report on, as before; an error of the watch after that ends on the channel.
func watchAssignments(ctx context.Context, js bucketOpener, gate *toolchainGate, changed func(context.Context), logger *log.Logger) (<-chan error, error) {
errs := make(chan error, 1)
kv, err := js.KeyValue(ctx, provider.AssignmentsBucket)
if err != nil {
// Not fatal: an indexer, builder or checker that stops for it stops every delivery (a grant comes with a delivery).
logger.Printf("the bucket %s cannot be read, so every node's toolchain report counts, an unassigned build node's too (issue 1940): %v", provider.AssignmentsBucket, err)
return errs, nil
}
each := func(e jetstream.KeyValueEntry) { gate.Assignment(e.Key(), e.Value(), !opOf(e)) }
w, err := settle(ctx, kv, each)
if err != nil {
return nil, fmt.Errorf("the bucket %s: %w", provider.AssignmentsBucket, err)
}
if gate.Settled() {
changed(ctx)
}
go func() {
errs <- follow(ctx, w, func(e jetstream.KeyValueEntry) {
if gate.Assignment(e.Key(), e.Value(), !opOf(e)) {
changed(ctx)
}
})
}()
return errs, nil
}
modules/mesh-delivery-builder/cmd/mesh-delivery-builder/standing_test.go
+112
View File
@@ -0,0 +1,112 @@
package main
// The same in mesh-delivery-indexer, mesh-delivery-builder and mesh-delivery-checker, as standing.go is (issue 1940).
import (
"strings"
"testing"
"time"
"git.novox.be/novox/mesh-sdk/go/delivery"
"git.novox.be/novox/mesh-sdk/go/delivery/buildrun"
)
func gateReport(t *testing.T, node, version string) (string, []byte) {
t.Helper()
key, err := delivery.ToolchainKey(node, "typescript")
if err != nil {
t.Fatal(err)
}
value, err := delivery.EncodeToolchain(delivery.Toolchain{Language: "typescript", Version: version, Recipe: "f59571cf4be75adf", At: time.Unix(0, 0).UTC()})
if err != nil {
t.Fatal(err)
}
return key, value
}
func agreedOf(set *buildrun.ToolchainSet) (string, string) {
tc, none := delivery.AgreedToolchain(set.Entries("typescript"))
return tc.Version, none
}
// The live case of issue 1940: mesh-build-node was unassigned from ace, whose report stayed at v26.12.0 while the
// three nodes it runs on report v26.12.1. Without the assignments every report counts (and they disagree); with them
// ace's is left out and the three agree; assigned to ace again, its report counts again and the guard refuses again.
func TestAnUnassignedBuildNodesReportIsNoBuilder(t *testing.T) {
set := &buildrun.ToolchainSet{}
var said []string
gate := newToolchainGate([]string{buildrun.GoBuildModule, buildrun.NodeBuildModule}, set.Put, func(f string, a ...any) { said = append(said, f) })
for node, version := range map[string]string{"ace": "v26.12.0", "g14": "v26.12.1", "novox": "v26.12.1", "shanks": "v26.12.1"} {
key, value := gateReport(t, node, version)
gate.Toolchain(buildrun.NodeBuildModule, key, value, false)
}
if _, none := agreedOf(set); !strings.HasPrefix(none, "builders disagree") {
t.Fatalf("before the assignments are read every report counts, so they disagree; got %q", none)
}
for _, node := range []string{"g14", "novox", "shanks"} {
gate.Assignment(node+"."+buildrun.NodeBuildModule, []byte(`{"node":"`+node+`","module":"mesh-build-node"}`), false)
}
gate.Assignment("ace.mesh-build-node", []byte(`{"node":"ace","module":"mesh-build-node","ended":"2026-10-23T08:00:00Z"}`), false)
gate.Assignment("ace.mesh-build-go", []byte(`{"node":"ace","module":"mesh-build-go"}`), false) // another module's: no matter
if !gate.Settled() {
t.Fatal("settling the assignments left ace's report out, so what was passed on changed")
}
if v, none := agreedOf(set); v != "v26.12.1" || none != "" {
t.Fatalf("the assigned nodes agree on v26.12.1; got %q, %q", v, none)
}
if len(said) != 1 {
t.Fatalf("ace's report is said left out once; said %v", said)
}
// ace reports again while unassigned (an old value seen again): still left out.
key, value := gateReport(t, "ace", "v26.12.0")
if gate.Toolchain(buildrun.NodeBuildModule, key, value, false) {
t.Fatal("an unassigned node's report changed what was passed on")
}
// Assigned to ace again: its report counts, and the builders really disagree: the guard stays.
if !gate.Assignment("ace.mesh-build-node", []byte(`{"node":"ace","module":"mesh-build-node"}`), false) {
t.Fatal("assigning ace again passed nothing on")
}
if _, none := agreedOf(set); !strings.HasPrefix(none, "builders disagree: v26.12.0 recipe f59571cf4be75adf on ace") {
t.Fatalf("builders that run different versions still disagree; got %q", none)
}
// The assignment's key deleted, or a pending one written: no assignment stands, and ace's report goes again.
if !gate.Assignment("ace.mesh-build-node", []byte(`{"node":"ace","module":"mesh-build-node","state":"pending"}`), false) {
t.Fatal("a pending assignment is no assignment on the machine")
}
if v, none := agreedOf(set); v != "v26.12.1" || none != "" {
t.Fatalf("got %q, %q", v, none)
}
gate.Assignment("ace.mesh-build-node", nil, true)
if v, _ := agreedOf(set); v != "v26.12.1" {
t.Fatalf("got %q", v)
}
// A report deleted from the bucket goes whether its node is assigned or not.
key, _ = gateReport(t, "g14", "v26.12.1")
if !gate.Toolchain(buildrun.NodeBuildModule, key, nil, true) {
t.Fatal("deleting g14's report passed nothing on")
}
if n := len(set.Entries("typescript")); n != 2 {
t.Fatalf("novox and shanks are left; got %d entries", n)
}
}
// A newly assigned build node that has not reported yet changes nothing; its report counts as it comes.
func TestANewlyAssignedNodeCountsFromItsReport(t *testing.T) {
set := &buildrun.ToolchainSet{}
gate := newToolchainGate([]string{buildrun.NodeBuildModule}, set.Put, func(string, ...any) {})
gate.Settled()
if gate.Assignment("g14.mesh-build-node", []byte(`{}`), false) {
t.Fatal("an assignment with no report passed something on")
}
key, value := gateReport(t, "g14", "v26.12.1")
if !gate.Toolchain(buildrun.NodeBuildModule, key, value, false) {
t.Fatal("an assigned node's report was not passed on")
}
key, value = gateReport(t, "ace", "v26.12.0")
if gate.Toolchain(buildrun.NodeBuildModule, key, value, false) {
t.Fatal("a report of a node with no assignment key was passed on after the assignments settled")
}
if v, none := agreedOf(set); v != "v26.12.1" || none != "" {
t.Fatalf("got %q, %q", v, none)
}
}
modules/mesh-delivery-builder/cmd/mesh-delivery-builder/toolchains.go
+8 -6
View File
@@ -23,9 +23,11 @@ var toolchainStreams = map[string]string{buildrun.GoBuildModule: "TOOLCHAINS_GO"
// §8): it watches the buckets that exist at start, and a build module says each time it wrote its toolchains key
// (toolchain.reported, handled by Reported); a bucket not watched yet is then watched.
type toolchainWatch struct {
ctx context.Context
js bucketOpener
set *buildrun.ToolchainSet
ctx context.Context
js bucketOpener
set *buildrun.ToolchainSet
// put takes a change of a toolchains bucket in: set.Put, or the gate of the assigned build nodes before it (issue 1940).
put func(module, key string, value []byte, deleted bool) bool
changed func(ctx context.Context) // a language's entries changed: the failed builds are tried again
logger *log.Logger
errs chan error
@@ -34,7 +36,7 @@ type toolchainWatch struct {
}
func newToolchainWatch(ctx context.Context, js bucketOpener, set *buildrun.ToolchainSet, changed func(context.Context), logger *log.Logger) *toolchainWatch {
return &toolchainWatch{ctx: ctx, js: js, set: set, changed: changed, logger: logger, errs: make(chan error, len(buildrun.LanguageOf)), watched: map[string]bool{}}
return &toolchainWatch{ctx: ctx, js: js, set: set, put: set.Put, changed: changed, logger: logger, errs: make(chan error, len(buildrun.LanguageOf)), watched: map[string]bool{}}
}
// start watches the buckets that exist now; a missing one is said and waits for its build module's event.
@@ -62,14 +64,14 @@ func (w *toolchainWatch) ensure(module string) error {
case err != nil:
return fmt.Errorf("the bucket %s: %w", name, err)
}
watcher, err := settle(w.ctx, kv, func(e jetstream.KeyValueEntry) { w.set.Put(module, e.Key(), e.Value(), !opOf(e)) })
watcher, err := settle(w.ctx, kv, func(e jetstream.KeyValueEntry) { w.put(module, e.Key(), e.Value(), !opOf(e)) })
if err != nil {
return err
}
w.watched[module] = true
go func() {
w.errs <- follow(w.ctx, watcher, func(e jetstream.KeyValueEntry) {
if w.set.Put(module, e.Key(), e.Value(), !opOf(e)) {
if w.put(module, e.Key(), e.Value(), !opOf(e)) {
w.changed(w.ctx)
}
})
modules/mesh-delivery-builder/manifest_test.go
+1 -1
View File
@@ -89,7 +89,7 @@ func TestManifestDeclarations(t *testing.T) { // 1607/AC1
}
// 1887/A4c: the builder chooses no node, so it reads neither presence nor have, invokes no build module's tool and
// holds no capacity; it puts asks on the three build seats and reads their steps (ADR 0525 §1, §4, §5).
if want := []string{"mesh-build-go.steps", "mesh-build-go.toolchains", "mesh-build-image.steps", "mesh-build-node.steps", "mesh-build-node.toolchains",
if want := []string{"mesh-build-go.steps", "mesh-build-go.toolchains", "mesh-build-image.steps", "mesh-build-node.steps", "mesh-build-node.toolchains", "mesh-controller.assignments",
"mesh-delivery-indexer.candidates", "mesh-delivery-indexer.manifests", "mesh-delivery-indexer.modules"}; !reflect.DeepEqual(sorted(m.Reads), want) {
t.Errorf("reads = %v, want %v", m.Reads, want)
}
modules/mesh-delivery-builder/module.json
+1
View File
@@ -20,6 +20,7 @@
"mesh-build-image.steps",
"mesh-build-node.steps",
"mesh-build-node.toolchains",
"mesh-controller.assignments",
"mesh-delivery-indexer.candidates",
"mesh-delivery-indexer.manifests",
"mesh-delivery-indexer.modules"
modules/mesh-delivery-checker/cmd/mesh-delivery-checker/main.go
+10
View File
@@ -257,6 +257,14 @@ func run(ctx context.Context, getenv func(string) string, logOut io.Writer) erro
// The toolchains first, so a check that starts from the first candidate finds the nodes.
watch := newToolchainWatch(ctx, js, tools, ch.NodesChanged, logger)
// Only the toolchain reports of nodes the build module is assigned to count (issue 1940): the controller's
// assignments are settled first, so the toolchains settle through the gate already knowing them.
gate := newToolchainGate([]string{buildrun.GoBuildModule, buildrun.NodeBuildModule}, tools.Put, logger.Printf)
watch.put = gate.Toolchain
assignErrs, err := watchAssignments(ctx, js, gate, ch.NodesChanged, logger)
if err != nil {
return err
}
if err := watch.start(); err != nil {
return err
}
@@ -369,6 +377,8 @@ func run(ctx context.Context, getenv func(string) string, logOut io.Writer) erro
return nil
case err := <-errs:
return err
case err := <-assignErrs:
return err
case err := <-watch.errs:
return err
}
modules/mesh-delivery-checker/cmd/mesh-delivery-checker/standing.go
+174
View File
@@ -0,0 +1,174 @@
package main
// This file is the same in mesh-delivery-indexer, mesh-delivery-builder and mesh-delivery-checker (issue 1940): it moves
// to mesh-sdk go/delivery/buildrun once mesh-sdk can be delivered again, since a change of mesh-sdk waits on the very
// toolchain agreement this file repairs.
import (
"context"
"encoding/json"
"fmt"
"log"
"maps"
"slices"
"strings"
"sync"
"time"
"github.com/nats-io/nats.go/jetstream"
"git.novox.be/novox/mesh-sdk/go/delivery"
"git.novox.be/novox/mesh-sdk/go/provider"
)
// A build module writes <node>.<language> of its toolchains state on every node it runs on, and nothing deletes the key
// when the module is unassigned from a node: the controller writes no module's state, and the module is gone. A report of
// a node the build module no longer runs on is therefore not a builder (issue 1940: mesh-build-node unassigned from ace
// on 2026-10-23 left ace.typescript at v26.12.0, and every Node fingerprint said "builders disagree").
//
// toolchainGate stands between the toolchains buckets and what takes their entries in (the indexer's PutToolchain, a
// buildrun.ToolchainSet): an entry is passed on only while the controller's assignments (mesh-controller_assignments,
// key <node>.<module>) hold an open assignment of its build module on its node; it is passed on as deleted otherwise,
// and passed on again when the module is assigned there again. Until the assignments are settled (or where they cannot
// be read) every entry is passed on, as before. Builders that run and report different versions still disagree: that
// refusal is the guard of novox/hq ADR 0465, and it stays.
type toolchainGate struct {
mu sync.Mutex
modules map[string]bool // the build modules whose toolchains pass the gate
forward func(module, key string, value []byte, deleted bool) bool // answers whether it changed what it holds
logf func(format string, a ...any)
known bool // the assignments are settled
standing map[string]bool // <node>.<module> with an open assignment
raw map[string]map[string][]byte // module -> toolchains key -> value, as the bucket holds it
left map[string]bool // <module>/<key> said as left out, so it is said once
}
func newToolchainGate(modules []string, forward func(module, key string, value []byte, deleted bool) bool, logf func(string, ...any)) *toolchainGate {
g := &toolchainGate{modules: map[string]bool{}, forward: forward, logf: logf, standing: map[string]bool{},
raw: map[string]map[string][]byte{}, left: map[string]bool{}}
for _, m := range modules {
g.modules[m] = true
}
return g
}
// Toolchain takes one change of a build module's toolchains bucket in and answers whether what it passed on changed.
func (g *toolchainGate) Toolchain(module, key string, value []byte, deleted bool) bool {
g.mu.Lock()
defer g.mu.Unlock()
if g.raw[module] == nil {
g.raw[module] = map[string][]byte{}
}
if deleted {
delete(g.raw[module], key)
} else {
g.raw[module][key] = value
}
return g.pass(module, key)
}
// Assignment takes one change of the controller's assignments in and answers whether what it passed on changed.
func (g *toolchainGate) Assignment(key string, value []byte, deleted bool) bool {
node, module, ok := strings.Cut(key, ".")
if !ok || !g.modules[module] {
return false
}
open := !deleted && openAssignment(value)
g.mu.Lock()
defer g.mu.Unlock()
if g.standing[key] == open {
return false
}
if open {
g.standing[key] = true
} else {
delete(g.standing, key)
}
if !g.known {
return false
}
changed := false
for _, k := range slices.Sorted(maps.Keys(g.raw[module])) {
if n, _, err := delivery.ParseToolchainKey(k); err == nil && n == node {
changed = g.pass(module, k) || changed
}
}
return changed
}
// Settled says the assignments are read: from now on only the reports of assigned nodes pass. It answers whether what it
// passed on changed.
func (g *toolchainGate) Settled() bool {
g.mu.Lock()
defer g.mu.Unlock()
g.known = true
changed := false
for _, module := range slices.Sorted(maps.Keys(g.raw)) {
for _, k := range slices.Sorted(maps.Keys(g.raw[module])) {
changed = g.pass(module, k) || changed
}
}
return changed
}
// pass hands one key on as it stands: its value when its node is assigned (or the assignments are not known), deleted
// otherwise. The caller holds mu.
func (g *toolchainGate) pass(module, key string) bool {
value, held := g.raw[module][key]
if !held {
return g.forward(module, key, nil, true)
}
node, _, err := delivery.ParseToolchainKey(key)
if err != nil || !g.known || g.standing[node+"."+module] {
delete(g.left, module+"/"+key)
return g.forward(module, key, value, false)
}
if !g.left[module+"/"+key] {
g.left[module+"/"+key] = true
g.logf("%s.%s is left out of the agreed toolchain: %s has no assignment on %s, so it is no builder (issue 1940)",
delivery.ToolchainsBucket(module), key, module, node)
}
return g.forward(module, key, nil, true)
}
// openAssignment is whether a value of the controller's assignments holds an assignment that stands: one that has not
// ended and has no state (a pending one is not on the machine yet; mesh-controller internal/chain Assignment).
func openAssignment(value []byte) bool {
var a struct {
Ended time.Time `json:"ended"`
State string `json:"state"`
}
if json.Unmarshal(value, &a) != nil {
return false
}
return a.Ended.IsZero() && a.State == ""
}
// watchAssignments settles the controller's assignments into the gate, says them settled, and follows them; changed is
// told whenever what the gate passes on changed. Where the bucket cannot be read (not there, or this module may not read
// it) it says so and the gate passes every report on, as before; an error of the watch after that ends on the channel.
func watchAssignments(ctx context.Context, js bucketOpener, gate *toolchainGate, changed func(context.Context), logger *log.Logger) (<-chan error, error) {
errs := make(chan error, 1)
kv, err := js.KeyValue(ctx, provider.AssignmentsBucket)
if err != nil {
// Not fatal: an indexer, builder or checker that stops for it stops every delivery (a grant comes with a delivery).
logger.Printf("the bucket %s cannot be read, so every node's toolchain report counts, an unassigned build node's too (issue 1940): %v", provider.AssignmentsBucket, err)
return errs, nil
}
each := func(e jetstream.KeyValueEntry) { gate.Assignment(e.Key(), e.Value(), !opOf(e)) }
w, err := settle(ctx, kv, each)
if err != nil {
return nil, fmt.Errorf("the bucket %s: %w", provider.AssignmentsBucket, err)
}
if gate.Settled() {
changed(ctx)
}
go func() {
errs <- follow(ctx, w, func(e jetstream.KeyValueEntry) {
if gate.Assignment(e.Key(), e.Value(), !opOf(e)) {
changed(ctx)
}
})
}()
return errs, nil
}
modules/mesh-delivery-checker/cmd/mesh-delivery-checker/standing_test.go
+112
View File
@@ -0,0 +1,112 @@
package main
// The same in mesh-delivery-indexer, mesh-delivery-builder and mesh-delivery-checker, as standing.go is (issue 1940).
import (
"strings"
"testing"
"time"
"git.novox.be/novox/mesh-sdk/go/delivery"
"git.novox.be/novox/mesh-sdk/go/delivery/buildrun"
)
func gateReport(t *testing.T, node, version string) (string, []byte) {
t.Helper()
key, err := delivery.ToolchainKey(node, "typescript")
if err != nil {
t.Fatal(err)
}
value, err := delivery.EncodeToolchain(delivery.Toolchain{Language: "typescript", Version: version, Recipe: "f59571cf4be75adf", At: time.Unix(0, 0).UTC()})
if err != nil {
t.Fatal(err)
}
return key, value
}
func agreedOf(set *buildrun.ToolchainSet) (string, string) {
tc, none := delivery.AgreedToolchain(set.Entries("typescript"))
return tc.Version, none
}
// The live case of issue 1940: mesh-build-node was unassigned from ace, whose report stayed at v26.12.0 while the
// three nodes it runs on report v26.12.1. Without the assignments every report counts (and they disagree); with them
// ace's is left out and the three agree; assigned to ace again, its report counts again and the guard refuses again.
func TestAnUnassignedBuildNodesReportIsNoBuilder(t *testing.T) {
set := &buildrun.ToolchainSet{}
var said []string
gate := newToolchainGate([]string{buildrun.GoBuildModule, buildrun.NodeBuildModule}, set.Put, func(f string, a ...any) { said = append(said, f) })
for node, version := range map[string]string{"ace": "v26.12.0", "g14": "v26.12.1", "novox": "v26.12.1", "shanks": "v26.12.1"} {
key, value := gateReport(t, node, version)
gate.Toolchain(buildrun.NodeBuildModule, key, value, false)
}
if _, none := agreedOf(set); !strings.HasPrefix(none, "builders disagree") {
t.Fatalf("before the assignments are read every report counts, so they disagree; got %q", none)
}
for _, node := range []string{"g14", "novox", "shanks"} {
gate.Assignment(node+"."+buildrun.NodeBuildModule, []byte(`{"node":"`+node+`","module":"mesh-build-node"}`), false)
}
gate.Assignment("ace.mesh-build-node", []byte(`{"node":"ace","module":"mesh-build-node","ended":"2026-10-23T08:00:00Z"}`), false)
gate.Assignment("ace.mesh-build-go", []byte(`{"node":"ace","module":"mesh-build-go"}`), false) // another module's: no matter
if !gate.Settled() {
t.Fatal("settling the assignments left ace's report out, so what was passed on changed")
}
if v, none := agreedOf(set); v != "v26.12.1" || none != "" {
t.Fatalf("the assigned nodes agree on v26.12.1; got %q, %q", v, none)
}
if len(said) != 1 {
t.Fatalf("ace's report is said left out once; said %v", said)
}
// ace reports again while unassigned (an old value seen again): still left out.
key, value := gateReport(t, "ace", "v26.12.0")
if gate.Toolchain(buildrun.NodeBuildModule, key, value, false) {
t.Fatal("an unassigned node's report changed what was passed on")
}
// Assigned to ace again: its report counts, and the builders really disagree: the guard stays.
if !gate.Assignment("ace.mesh-build-node", []byte(`{"node":"ace","module":"mesh-build-node"}`), false) {
t.Fatal("assigning ace again passed nothing on")
}
if _, none := agreedOf(set); !strings.HasPrefix(none, "builders disagree: v26.12.0 recipe f59571cf4be75adf on ace") {
t.Fatalf("builders that run different versions still disagree; got %q", none)
}
// The assignment's key deleted, or a pending one written: no assignment stands, and ace's report goes again.
if !gate.Assignment("ace.mesh-build-node", []byte(`{"node":"ace","module":"mesh-build-node","state":"pending"}`), false) {
t.Fatal("a pending assignment is no assignment on the machine")
}
if v, none := agreedOf(set); v != "v26.12.1" || none != "" {
t.Fatalf("got %q, %q", v, none)
}
gate.Assignment("ace.mesh-build-node", nil, true)
if v, _ := agreedOf(set); v != "v26.12.1" {
t.Fatalf("got %q", v)
}
// A report deleted from the bucket goes whether its node is assigned or not.
key, _ = gateReport(t, "g14", "v26.12.1")
if !gate.Toolchain(buildrun.NodeBuildModule, key, nil, true) {
t.Fatal("deleting g14's report passed nothing on")
}
if n := len(set.Entries("typescript")); n != 2 {
t.Fatalf("novox and shanks are left; got %d entries", n)
}
}
// A newly assigned build node that has not reported yet changes nothing; its report counts as it comes.
func TestANewlyAssignedNodeCountsFromItsReport(t *testing.T) {
set := &buildrun.ToolchainSet{}
gate := newToolchainGate([]string{buildrun.NodeBuildModule}, set.Put, func(string, ...any) {})
gate.Settled()
if gate.Assignment("g14.mesh-build-node", []byte(`{}`), false) {
t.Fatal("an assignment with no report passed something on")
}
key, value := gateReport(t, "g14", "v26.12.1")
if !gate.Toolchain(buildrun.NodeBuildModule, key, value, false) {
t.Fatal("an assigned node's report was not passed on")
}
key, value = gateReport(t, "ace", "v26.12.0")
if gate.Toolchain(buildrun.NodeBuildModule, key, value, false) {
t.Fatal("a report of a node with no assignment key was passed on after the assignments settled")
}
if v, none := agreedOf(set); v != "v26.12.1" || none != "" {
t.Fatalf("got %q, %q", v, none)
}
}
modules/mesh-delivery-checker/cmd/mesh-delivery-checker/toolchains.go
+8 -6
View File
@@ -24,9 +24,11 @@ var toolchainStreams = map[string]string{buildrun.GoBuildModule: "TOOLCHAINS_GO"
// §8): it watches the buckets that exist at start, and a build module says each time it wrote its toolchains key
// (toolchain.reported, handled by Reported); a bucket not watched yet is then watched.
type toolchainWatch struct {
ctx context.Context
js bucketOpener
set *buildrun.ToolchainSet
ctx context.Context
js bucketOpener
set *buildrun.ToolchainSet
// put takes a change of a toolchains bucket in: set.Put, or the gate of the assigned build nodes before it (issue 1940).
put func(module, key string, value []byte, deleted bool) bool
changed func(ctx context.Context) // a language's entries changed: the failed builds are tried again
logger *log.Logger
errs chan error
@@ -35,7 +37,7 @@ type toolchainWatch struct {
}
func newToolchainWatch(ctx context.Context, js bucketOpener, set *buildrun.ToolchainSet, changed func(context.Context), logger *log.Logger) *toolchainWatch {
return &toolchainWatch{ctx: ctx, js: js, set: set, changed: changed, logger: logger, errs: make(chan error, len(buildrun.LanguageOf)), watched: map[string]bool{}}
return &toolchainWatch{ctx: ctx, js: js, set: set, put: set.Put, changed: changed, logger: logger, errs: make(chan error, len(buildrun.LanguageOf)), watched: map[string]bool{}}
}
// start watches the buckets that exist now; a missing one is said and waits for its build module's event.
@@ -63,14 +65,14 @@ func (w *toolchainWatch) ensure(module string) error {
case err != nil:
return fmt.Errorf("the bucket %s: %w", name, err)
}
watcher, err := settle(w.ctx, kv, func(e jetstream.KeyValueEntry) { w.set.Put(module, e.Key(), e.Value(), !opOf(e)) })
watcher, err := settle(w.ctx, kv, func(e jetstream.KeyValueEntry) { w.put(module, e.Key(), e.Value(), !opOf(e)) })
if err != nil {
return err
}
w.watched[module] = true
go func() {
w.errs <- follow(w.ctx, watcher, func(e jetstream.KeyValueEntry) {
if w.set.Put(module, e.Key(), e.Value(), !opOf(e)) {
if w.put(module, e.Key(), e.Value(), !opOf(e)) {
w.changed(w.ctx)
}
})
modules/mesh-delivery-checker/manifest_test.go
+1 -1
View File
@@ -96,7 +96,7 @@ func TestManifestDeclarations(t *testing.T) { // 1678/AC1
if want := []state{{Name: "kept", History: 1}, {Name: "owed", History: 5}, {Name: "previews", History: 5}, {Name: "tries", History: 1}, {Name: "verdicts", History: 5}}; !reflect.DeepEqual(m.State, want) {
t.Errorf("state = %+v, want %+v", m.State, want)
}
if want := []string{"mesh-build-go.steps", "mesh-build-go.toolchains", "mesh-build-node.steps", "mesh-build-node.toolchains",
if want := []string{"mesh-build-go.steps", "mesh-build-go.toolchains", "mesh-build-node.steps", "mesh-build-node.toolchains", "mesh-controller.assignments",
"mesh-delivery-assigner.compositions", "mesh-delivery-builder.builds", "mesh-delivery-gate.source", "mesh-delivery-indexer.candidates",
"mesh-delivery-indexer.manifests", "mesh-delivery-indexer.modules", "mesh-delivery-watchman.presence", "node-engine.have"}; !reflect.DeepEqual(sorted(m.Reads), want) {
t.Errorf("reads = %v, want %v", m.Reads, want)
modules/mesh-delivery-checker/module.json
+1
View File
@@ -21,6 +21,7 @@
"mesh-build-go.toolchains",
"mesh-build-node.steps",
"mesh-build-node.toolchains",
"mesh-controller.assignments",
"mesh-delivery-assigner.compositions",
"mesh-delivery-builder.builds",
"mesh-delivery-gate.source",
modules/mesh-delivery-indexer/cmd/mesh-delivery-indexer/integration_test.go
+85
View File
@@ -549,3 +549,88 @@ func TestIndexerJudgesAnUnreadableVerdictAgainAtStart(t *testing.T) { // 1923/AC
t.Errorf("avahi = fp2 %q none2 %q within 5 s of the start, want a fingerprint and no reason", got.FP2, got.None2)
}
}
// TestIndexerCountsOnlyTheAssignedBuildNodesToolchains (issue 1940): the toolchains bucket holds the report of n2, where
// mesh-build-go was unassigned (its assignment ended) at another version than n1's, as ace's v26.12.0 stayed beside the
// v26.12.1 of the nodes mesh-build-node runs on. The indexer gives the merged module a fingerprint from n1's toolchain
// alone; when the controller assigns mesh-build-go to n2 again, its report counts and the builders disagree (the guard
// stays); when the assignment ends again, the fingerprint comes back. No restart, no timer: the assignments' watch.
func TestIndexerCountsOnlyTheAssignedBuildNodesToolchains(t *testing.T) {
manifest, err := os.ReadFile("../../internal/index/testdata/catalogue-a67f0196-avahi.module.json")
if err != nil {
t.Fatal(err)
}
const goSum = "3b5028f0c1e9bde04dd766abd63eb5931bc516bae695cf46f00abcd8510b0381"
var assignments jetstream.KeyValue
js, ctx, _, modules := startIndexer(t, func(context.Context, jetstream.KeyValue) {}, func(ctx context.Context, js jetstream.JetStream) {
kv, err := js.CreateKeyValue(ctx, jetstream.KeyValueConfig{Bucket: delivery.ToolchainsBucket("mesh-build-go"), History: 1})
if err != nil {
t.Fatal(err)
}
for node, version := range map[string]string{"n1": "go1.27.3", "n2": "go1.27.2"} {
key, _ := delivery.ToolchainKey(node, "go")
value, err := delivery.EncodeToolchain(delivery.Toolchain{Language: "go", Version: version, Recipe: "1", At: time.Now()})
if err != nil {
t.Fatal(err)
}
if _, err := kv.Put(ctx, key, value); err != nil {
t.Fatal(err)
}
}
// The controller's assignments mirror, in its layout (mesh-controller internal/chain Assignment).
if assignments, err = js.CreateKeyValue(ctx, jetstream.KeyValueConfig{Bucket: "mesh-controller_assignments", History: 1}); err != nil {
t.Fatal(err)
}
for key, value := range map[string]string{
"n1.mesh-build-go": `{"node":"n1","module":"mesh-build-go","assigned":"2026-10-20T08:00:00Z"}`,
"n2.mesh-build-go": `{"node":"n2","module":"mesh-build-go","assigned":"2026-10-20T08:00:00Z","ended":"2026-10-23T08:00:00Z"}`,
} {
if _, err := assignments.Put(ctx, key, []byte(value)); err != nil {
t.Fatal(err)
}
}
})
data, err := delivery.EncodeForge(delivery.Forge{Kind: delivery.ForgeMerged, Repository: "novox/mesh-catalog", Branch: "feat/x", Number: 302,
Head: "0123456789abcdef0123456789abcdef01234567", Merge: "89abcdef0123456789abcdef0123456789abcdef", Root: "r0",
Trees: map[string]string{"modules/avahi": "newtree"},
Manifests: map[string]string{"modules/avahi": string(manifest)},
Locks: map[string]map[string]string{"modules/avahi": {"go.sum": goSum}}})
if err != nil {
t.Fatal(err)
}
if _, err := js.Publish(ctx, "mesh.stream.mesh-delivery-forge-bridge.event.forge.novox.mesh-catalog.merged", data); err != nil {
t.Fatal(err)
}
read := func(ok func(delivery.Module) bool) delivery.Module {
var got delivery.Module
for deadline := time.Now().Add(5 * time.Second); time.Now().Before(deadline); time.Sleep(50 * time.Millisecond) {
if e, err := modules.Get(ctx, "avahi"); err == nil {
if m, err := delivery.DecodeModule(e.Value()); err == nil {
if got = m; ok(m) {
break
}
}
}
}
return got
}
agreed := func(m delivery.Module) bool { return m.FP2 != "" && m.Toolchains["go"].Version == "go1.27.3" }
if m := read(agreed); !agreed(m) {
t.Fatalf("within 5 s avahi has fp2 %q, none2 %q, toolchains %v: want a fingerprint of n1's go1.27.3 alone", m.FP2, m.None2, m.Toolchains)
}
if _, err := assignments.Put(ctx, "n2.mesh-build-go", []byte(`{"node":"n2","module":"mesh-build-go","assigned":"2026-10-24T08:00:00Z"}`)); err != nil {
t.Fatal(err)
}
disagree := func(m delivery.Module) bool {
return m.FP2 == "" && strings.HasPrefix(m.None2, "builders disagree: go1.27.2 recipe 1 on n2")
}
if m := read(disagree); !disagree(m) {
t.Fatalf("within 5 s of n2's assignment avahi has fp2 %q, none2 %q: want the builders to disagree", m.FP2, m.None2)
}
if _, err := assignments.Put(ctx, "n2.mesh-build-go", []byte(`{"node":"n2","module":"mesh-build-go","ended":"2026-10-24T09:00:00Z"}`)); err != nil {
t.Fatal(err)
}
if m := read(agreed); !agreed(m) {
t.Fatalf("within 5 s of n2's unassignment avahi has fp2 %q, none2 %q", m.FP2, m.None2)
}
}
modules/mesh-delivery-indexer/cmd/mesh-delivery-indexer/main.go
+22 -1
View File
@@ -313,7 +313,26 @@ func run(ctx context.Context, getenv func(string) string, logOut io.Writer) erro
}
go func() { sourceErrs <- follow(ctx, sw, each) }()
}
tools := newToolchainWatch(ctx, js, toolchainSink{put: ix.PutToolchain, apply: ix.ApplyToolchain, recompute: ix.Recompute}, logger)
// Only the toolchain reports of nodes the build module is assigned to count (issue 1940): the controller's
// assignments are settled first, so the toolchains settle through the gate already knowing them.
gate := newToolchainGate(sortedModules(), ix.PutToolchain, logger.Printf)
assignErrs, err := watchAssignments(ctx, js, gate, func(ctx context.Context) {
if err := ix.Recompute(ctx); err != nil {
logger.Printf("writing the modules again after an assignment of a build module changed: %v", err)
}
}, logger)
if err != nil {
return err
}
tools := newToolchainWatch(ctx, js, toolchainSink{
put: gate.Toolchain,
apply: func(ctx context.Context, module, key string, value []byte, deleted bool) error {
if !gate.Toolchain(module, key, value, deleted) {
return nil
}
return ix.Recompute(ctx)
},
recompute: ix.Recompute}, logger)
if err := tools.start(); err != nil {
return err
}
@@ -377,6 +396,8 @@ func run(ctx context.Context, getenv func(string) string, logOut io.Writer) erro
return err
case err := <-sourceErrs:
return err
case err := <-assignErrs:
return err
case err := <-tools.errs:
return err
case err := <-previews.errs:
modules/mesh-delivery-indexer/cmd/mesh-delivery-indexer/standing.go
+174
View File
@@ -0,0 +1,174 @@
package main
// This file is the same in mesh-delivery-indexer, mesh-delivery-builder and mesh-delivery-checker (issue 1940): it moves
// to mesh-sdk go/delivery/buildrun once mesh-sdk can be delivered again, since a change of mesh-sdk waits on the very
// toolchain agreement this file repairs.
import (
"context"
"encoding/json"
"fmt"
"log"
"maps"
"slices"
"strings"
"sync"
"time"
"github.com/nats-io/nats.go/jetstream"
"git.novox.be/novox/mesh-sdk/go/delivery"
"git.novox.be/novox/mesh-sdk/go/provider"
)
// A build module writes <node>.<language> of its toolchains state on every node it runs on, and nothing deletes the key
// when the module is unassigned from a node: the controller writes no module's state, and the module is gone. A report of
// a node the build module no longer runs on is therefore not a builder (issue 1940: mesh-build-node unassigned from ace
// on 2026-10-23 left ace.typescript at v26.12.0, and every Node fingerprint said "builders disagree").
//
// toolchainGate stands between the toolchains buckets and what takes their entries in (the indexer's PutToolchain, a
// buildrun.ToolchainSet): an entry is passed on only while the controller's assignments (mesh-controller_assignments,
// key <node>.<module>) hold an open assignment of its build module on its node; it is passed on as deleted otherwise,
// and passed on again when the module is assigned there again. Until the assignments are settled (or where they cannot
// be read) every entry is passed on, as before. Builders that run and report different versions still disagree: that
// refusal is the guard of novox/hq ADR 0465, and it stays.
type toolchainGate struct {
mu sync.Mutex
modules map[string]bool // the build modules whose toolchains pass the gate
forward func(module, key string, value []byte, deleted bool) bool // answers whether it changed what it holds
logf func(format string, a ...any)
known bool // the assignments are settled
standing map[string]bool // <node>.<module> with an open assignment
raw map[string]map[string][]byte // module -> toolchains key -> value, as the bucket holds it
left map[string]bool // <module>/<key> said as left out, so it is said once
}
func newToolchainGate(modules []string, forward func(module, key string, value []byte, deleted bool) bool, logf func(string, ...any)) *toolchainGate {
g := &toolchainGate{modules: map[string]bool{}, forward: forward, logf: logf, standing: map[string]bool{},
raw: map[string]map[string][]byte{}, left: map[string]bool{}}
for _, m := range modules {
g.modules[m] = true
}
return g
}
// Toolchain takes one change of a build module's toolchains bucket in and answers whether what it passed on changed.
func (g *toolchainGate) Toolchain(module, key string, value []byte, deleted bool) bool {
g.mu.Lock()
defer g.mu.Unlock()
if g.raw[module] == nil {
g.raw[module] = map[string][]byte{}
}
if deleted {
delete(g.raw[module], key)
} else {
g.raw[module][key] = value
}
return g.pass(module, key)
}
// Assignment takes one change of the controller's assignments in and answers whether what it passed on changed.
func (g *toolchainGate) Assignment(key string, value []byte, deleted bool) bool {
node, module, ok := strings.Cut(key, ".")
if !ok || !g.modules[module] {
return false
}
open := !deleted && openAssignment(value)
g.mu.Lock()
defer g.mu.Unlock()
if g.standing[key] == open {
return false
}
if open {
g.standing[key] = true
} else {
delete(g.standing, key)
}
if !g.known {
return false
}
changed := false
for _, k := range slices.Sorted(maps.Keys(g.raw[module])) {
if n, _, err := delivery.ParseToolchainKey(k); err == nil && n == node {
changed = g.pass(module, k) || changed
}
}
return changed
}
// Settled says the assignments are read: from now on only the reports of assigned nodes pass. It answers whether what it
// passed on changed.
func (g *toolchainGate) Settled() bool {
g.mu.Lock()
defer g.mu.Unlock()
g.known = true
changed := false
for _, module := range slices.Sorted(maps.Keys(g.raw)) {
for _, k := range slices.Sorted(maps.Keys(g.raw[module])) {
changed = g.pass(module, k) || changed
}
}
return changed
}
// pass hands one key on as it stands: its value when its node is assigned (or the assignments are not known), deleted
// otherwise. The caller holds mu.
func (g *toolchainGate) pass(module, key string) bool {
value, held := g.raw[module][key]
if !held {
return g.forward(module, key, nil, true)
}
node, _, err := delivery.ParseToolchainKey(key)
if err != nil || !g.known || g.standing[node+"."+module] {
delete(g.left, module+"/"+key)
return g.forward(module, key, value, false)
}
if !g.left[module+"/"+key] {
g.left[module+"/"+key] = true
g.logf("%s.%s is left out of the agreed toolchain: %s has no assignment on %s, so it is no builder (issue 1940)",
delivery.ToolchainsBucket(module), key, module, node)
}
return g.forward(module, key, nil, true)
}
// openAssignment is whether a value of the controller's assignments holds an assignment that stands: one that has not
// ended and has no state (a pending one is not on the machine yet; mesh-controller internal/chain Assignment).
func openAssignment(value []byte) bool {
var a struct {
Ended time.Time `json:"ended"`
State string `json:"state"`
}
if json.Unmarshal(value, &a) != nil {
return false
}
return a.Ended.IsZero() && a.State == ""
}
// watchAssignments settles the controller's assignments into the gate, says them settled, and follows them; changed is
// told whenever what the gate passes on changed. Where the bucket cannot be read (not there, or this module may not read
// it) it says so and the gate passes every report on, as before; an error of the watch after that ends on the channel.
func watchAssignments(ctx context.Context, js bucketOpener, gate *toolchainGate, changed func(context.Context), logger *log.Logger) (<-chan error, error) {
errs := make(chan error, 1)
kv, err := js.KeyValue(ctx, provider.AssignmentsBucket)
if err != nil {
// Not fatal: an indexer, builder or checker that stops for it stops every delivery (a grant comes with a delivery).
logger.Printf("the bucket %s cannot be read, so every node's toolchain report counts, an unassigned build node's too (issue 1940): %v", provider.AssignmentsBucket, err)
return errs, nil
}
each := func(e jetstream.KeyValueEntry) { gate.Assignment(e.Key(), e.Value(), !opOf(e)) }
w, err := settle(ctx, kv, each)
if err != nil {
return nil, fmt.Errorf("the bucket %s: %w", provider.AssignmentsBucket, err)
}
if gate.Settled() {
changed(ctx)
}
go func() {
errs <- follow(ctx, w, func(e jetstream.KeyValueEntry) {
if gate.Assignment(e.Key(), e.Value(), !opOf(e)) {
changed(ctx)
}
})
}()
return errs, nil
}
modules/mesh-delivery-indexer/cmd/mesh-delivery-indexer/standing_test.go
+112
View File
@@ -0,0 +1,112 @@
package main
// The same in mesh-delivery-indexer, mesh-delivery-builder and mesh-delivery-checker, as standing.go is (issue 1940).
import (
"strings"
"testing"
"time"
"git.novox.be/novox/mesh-sdk/go/delivery"
"git.novox.be/novox/mesh-sdk/go/delivery/buildrun"
)
func gateReport(t *testing.T, node, version string) (string, []byte) {
t.Helper()
key, err := delivery.ToolchainKey(node, "typescript")
if err != nil {
t.Fatal(err)
}
value, err := delivery.EncodeToolchain(delivery.Toolchain{Language: "typescript", Version: version, Recipe: "f59571cf4be75adf", At: time.Unix(0, 0).UTC()})
if err != nil {
t.Fatal(err)
}
return key, value
}
func agreedOf(set *buildrun.ToolchainSet) (string, string) {
tc, none := delivery.AgreedToolchain(set.Entries("typescript"))
return tc.Version, none
}
// The live case of issue 1940: mesh-build-node was unassigned from ace, whose report stayed at v26.12.0 while the
// three nodes it runs on report v26.12.1. Without the assignments every report counts (and they disagree); with them
// ace's is left out and the three agree; assigned to ace again, its report counts again and the guard refuses again.
func TestAnUnassignedBuildNodesReportIsNoBuilder(t *testing.T) {
set := &buildrun.ToolchainSet{}
var said []string
gate := newToolchainGate([]string{buildrun.GoBuildModule, buildrun.NodeBuildModule}, set.Put, func(f string, a ...any) { said = append(said, f) })
for node, version := range map[string]string{"ace": "v26.12.0", "g14": "v26.12.1", "novox": "v26.12.1", "shanks": "v26.12.1"} {
key, value := gateReport(t, node, version)
gate.Toolchain(buildrun.NodeBuildModule, key, value, false)
}
if _, none := agreedOf(set); !strings.HasPrefix(none, "builders disagree") {
t.Fatalf("before the assignments are read every report counts, so they disagree; got %q", none)
}
for _, node := range []string{"g14", "novox", "shanks"} {
gate.Assignment(node+"."+buildrun.NodeBuildModule, []byte(`{"node":"`+node+`","module":"mesh-build-node"}`), false)
}
gate.Assignment("ace.mesh-build-node", []byte(`{"node":"ace","module":"mesh-build-node","ended":"2026-10-23T08:00:00Z"}`), false)
gate.Assignment("ace.mesh-build-go", []byte(`{"node":"ace","module":"mesh-build-go"}`), false) // another module's: no matter
if !gate.Settled() {
t.Fatal("settling the assignments left ace's report out, so what was passed on changed")
}
if v, none := agreedOf(set); v != "v26.12.1" || none != "" {
t.Fatalf("the assigned nodes agree on v26.12.1; got %q, %q", v, none)
}
if len(said) != 1 {
t.Fatalf("ace's report is said left out once; said %v", said)
}
// ace reports again while unassigned (an old value seen again): still left out.
key, value := gateReport(t, "ace", "v26.12.0")
if gate.Toolchain(buildrun.NodeBuildModule, key, value, false) {
t.Fatal("an unassigned node's report changed what was passed on")
}
// Assigned to ace again: its report counts, and the builders really disagree: the guard stays.
if !gate.Assignment("ace.mesh-build-node", []byte(`{"node":"ace","module":"mesh-build-node"}`), false) {
t.Fatal("assigning ace again passed nothing on")
}
if _, none := agreedOf(set); !strings.HasPrefix(none, "builders disagree: v26.12.0 recipe f59571cf4be75adf on ace") {
t.Fatalf("builders that run different versions still disagree; got %q", none)
}
// The assignment's key deleted, or a pending one written: no assignment stands, and ace's report goes again.
if !gate.Assignment("ace.mesh-build-node", []byte(`{"node":"ace","module":"mesh-build-node","state":"pending"}`), false) {
t.Fatal("a pending assignment is no assignment on the machine")
}
if v, none := agreedOf(set); v != "v26.12.1" || none != "" {
t.Fatalf("got %q, %q", v, none)
}
gate.Assignment("ace.mesh-build-node", nil, true)
if v, _ := agreedOf(set); v != "v26.12.1" {
t.Fatalf("got %q", v)
}
// A report deleted from the bucket goes whether its node is assigned or not.
key, _ = gateReport(t, "g14", "v26.12.1")
if !gate.Toolchain(buildrun.NodeBuildModule, key, nil, true) {
t.Fatal("deleting g14's report passed nothing on")
}
if n := len(set.Entries("typescript")); n != 2 {
t.Fatalf("novox and shanks are left; got %d entries", n)
}
}
// A newly assigned build node that has not reported yet changes nothing; its report counts as it comes.
func TestANewlyAssignedNodeCountsFromItsReport(t *testing.T) {
set := &buildrun.ToolchainSet{}
gate := newToolchainGate([]string{buildrun.NodeBuildModule}, set.Put, func(string, ...any) {})
gate.Settled()
if gate.Assignment("g14.mesh-build-node", []byte(`{}`), false) {
t.Fatal("an assignment with no report passed something on")
}
key, value := gateReport(t, "g14", "v26.12.1")
if !gate.Toolchain(buildrun.NodeBuildModule, key, value, false) {
t.Fatal("an assigned node's report was not passed on")
}
key, value = gateReport(t, "ace", "v26.12.0")
if gate.Toolchain(buildrun.NodeBuildModule, key, value, false) {
t.Fatal("a report of a node with no assignment key was passed on after the assignments settled")
}
if v, none := agreedOf(set); v != "v26.12.1" || none != "" {
t.Fatalf("got %q, %q", v, none)
}
}
modules/mesh-delivery-indexer/manifest_test.go
+1 -1
View File
@@ -81,7 +81,7 @@ func TestManifestDeclarations(t *testing.T) { // 1238/AC1, 1444 (reads the build
if want := []state{{Name: "candidates", History: 10}, {Name: "manifests", History: 1}, {Name: "modules", History: 20}}; !reflect.DeepEqual(m.State, want) {
t.Errorf("state = %+v, want %+v", m.State, want)
}
if want := []string{"mesh-build-go.toolchains", "mesh-build-node.toolchains", "mesh-controller.builds", "mesh-delivery-checker.previews", "mesh-delivery-gate.source"}; !reflect.DeepEqual(sorted(m.Reads), want) {
if want := []string{"mesh-build-go.toolchains", "mesh-build-node.toolchains", "mesh-controller.assignments", "mesh-controller.builds", "mesh-delivery-checker.previews", "mesh-delivery-gate.source"}; !reflect.DeepEqual(sorted(m.Reads), want) {
t.Errorf("reads = %v, want %v", m.Reads, want)
}
// "Reads FORGE" is a consumes of the indexer's stream: the broker grants only buckets by reads (mesh-control
modules/mesh-delivery-indexer/module.json
+1
View File
@@ -16,6 +16,7 @@
"reads": [
"mesh-build-go.toolchains",
"mesh-build-node.toolchains",
"mesh-controller.assignments",
"mesh-controller.builds",
"mesh-delivery-checker.previews",
"mesh-delivery-gate.source"