periodic: always reset periodic children status

e2e/e2e_test.go

@@ -26,6 +26,7 @@ import (
 	_ "github.com/hashicorp/nomad/e2e/nodedrain"
 	_ "github.com/hashicorp/nomad/e2e/nomad09upgrade"
 	_ "github.com/hashicorp/nomad/e2e/nomadexec"
+	_ "github.com/hashicorp/nomad/e2e/parameterized"
 	_ "github.com/hashicorp/nomad/e2e/periodic"
 	_ "github.com/hashicorp/nomad/e2e/podman"
 	_ "github.com/hashicorp/nomad/e2e/quotas"

e2e/e2eutil/job.go

@@ -40,8 +40,7 @@ func Register(jobID, jobFilePath string) error {
 	return nil
 }
 
-// PeriodicForce forces a periodic job to dispatch, returning the child job ID
-// or an error
+// PeriodicForce forces a periodic job to dispatch
 func PeriodicForce(jobID string) error {
 	// nomad job periodic force
 	cmd := exec.Command("nomad", "job", "periodic", "force", jobID)
@@ -54,6 +53,29 @@ func PeriodicForce(jobID string) error {
 	return nil
 }
 
+// Dispatch dispatches a parameterized job
+func Dispatch(jobID string, meta map[string]string, payload string) error {
+	// nomad job periodic force
+	args := []string{"job", "dispatch"}
+	for k, v := range meta {
+		args = append(args, "-meta", fmt.Sprintf("%v=%v", k, v))
+	}
+	args = append(args, jobID)
+	if payload != "" {
+		args = append(args, "-")
+	}
+
+	cmd := exec.Command("nomad", args...)
+	cmd.Stdin = strings.NewReader(payload)
+
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("could not dispatch job: %w\n%v", err, string(out))
+	}
+
+	return nil
+}
+
 // JobInspectTemplate runs nomad job inspect and formats the output
 // using the specified go template
 func JobInspectTemplate(jobID, template string) (string, error) {
@@ -102,7 +124,10 @@ func ChildrenJobSummary(jobID string) ([]map[string]string, error) {
 
 	section, err := GetSection(out, "Children Job Summary")
 	if err != nil {
-		return nil, fmt.Errorf("could not find children job summary section: %w", err)
+		section, err = GetSection(out, "Parameterized Job Summary")
+		if err != nil {
+			return nil, fmt.Errorf("could not find children job summary section: %w", err)
+		}
 	}
 
 	summary, err := ParseColumns(section)
@@ -131,3 +156,22 @@ func PreviouslyLaunched(jobID string) ([]map[string]string, error) {
 
 	return summary, nil
 }
+
+func DispatchedJobs(jobID string) ([]map[string]string, error) {
+	out, err := Command("nomad", "job", "status", jobID)
+	if err != nil {
+		return nil, fmt.Errorf("nomad job status failed: %w", err)
+	}
+
+	section, err := GetSection(out, "Dispatched Jobs")
+	if err != nil {
+		return nil, fmt.Errorf("could not find previously launched jobs section: %w", err)
+	}
+
+	summary, err := ParseColumns(section)
+	if err != nil {
+		return nil, fmt.Errorf("could not parse previously launched jobs section: %w", err)
+	}
+
+	return summary, nil
+}

e2e/parameterized/input/simple.nomad

@@ -0,0 +1,26 @@
+job "periodic" {
+  datacenters = ["dc1"]
+  type        = "batch"
+
+  constraint {
+    attribute = "${attr.kernel.name}"
+    operator  = "set_contains_any"
+    value     = "darwin,linux"
+  }
+
+  parameterized {
+    meta_optional = ["i"]
+  }
+
+  group "group" {
+    task "task" {
+      driver = "docker"
+
+      config {
+        image   = "busybox:1"
+        command = "/bin/sh"
+        args    = ["-c", "sleep 5"]
+      }
+    }
+  }
+}

e2e/parameterized/parameterized.go

@@ -0,0 +1,90 @@
+package parameterized
+
+import (
+	"fmt"
+
+	"github.com/hashicorp/nomad/e2e/e2eutil"
+	"github.com/hashicorp/nomad/e2e/framework"
+	"github.com/hashicorp/nomad/helper/uuid"
+	"github.com/hashicorp/nomad/testutil"
+	"github.com/stretchr/testify/require"
+)
+
+type ParameterizedTest struct {
+	framework.TC
+	jobIDs []string
+}
+
+func init() {
+	framework.AddSuites(&framework.TestSuite{
+		Component:   "Parameterized",
+		CanRunLocal: true,
+		Cases: []framework.TestCase{
+			new(ParameterizedTest),
+		},
+	})
+}
+
+func (tc *ParameterizedTest) BeforeAll(f *framework.F) {
+	e2eutil.WaitForLeader(f.T(), tc.Nomad())
+}
+
+func (tc *ParameterizedTest) AfterEach(f *framework.F) {
+	nomadClient := tc.Nomad()
+	j := nomadClient.Jobs()
+
+	for _, id := range tc.jobIDs {
+		j.Deregister(id, true, nil)
+	}
+	_, err := e2eutil.Command("nomad", "system", "gc")
+	f.NoError(err)
+}
+
+func (tc *ParameterizedTest) TestParameterizedDispatch_Basic(f *framework.F) {
+	t := f.T()
+
+	uuid := uuid.Generate()
+	jobID := fmt.Sprintf("dispatch-%s", uuid[0:8])
+	tc.jobIDs = append(tc.jobIDs, jobID)
+
+	// register job
+	require.NoError(t, e2eutil.Register(jobID, "parameterized/input/simple.nomad"))
+
+	// force dispatch
+	dispatched := 4
+
+	for i := 0; i < dispatched; i++ {
+		require.NoError(t, e2eutil.Dispatch(jobID, map[string]string{"i": fmt.Sprintf("%v", i)}, ""))
+	}
+
+	testutil.WaitForResult(func() (bool, error) {
+		children, err := e2eutil.DispatchedJobs(jobID)
+		if err != nil {
+			return false, err
+		}
+
+		dead := 0
+		for _, c := range children {
+			if c["Status"] != "dead" {
+				return false, fmt.Errorf("expected periodic job to be dead")
+			}
+			dead++
+		}
+
+		if dead != dispatched {
+			return false, fmt.Errorf("expected %d but found %d children", dispatched, dead)
+		}
+
+		return true, nil
+	}, func(err error) {
+		require.NoError(t, err)
+	})
+
+	// Assert there are no pending children
+	summary, err := e2eutil.ChildrenJobSummary(jobID)
+	require.NoError(t, err)
+	require.Len(t, summary, 1)
+	require.Equal(t, summary[0]["Pending"], "0")
+	require.Equal(t, summary[0]["Running"], "0")
+	require.Equal(t, summary[0]["Dead"], fmt.Sprintf("%v", dispatched))
+}

e2e/periodic/input/simple.nomad

@@ -4,10 +4,12 @@ job "periodic" {
 
   constraint {
     attribute = "${attr.kernel.name}"
-    value     = "linux"
+    operator  = "set_contains_any"
+    value     = "darwin,linux"
   }
 
 
+
   periodic {
     cron             = "* * * * *"
     prohibit_overlap = true

e2e/periodic/periodic.go

@@ -74,5 +74,6 @@ func (tc *PeriodicTest) TestPeriodicDispatch_Basic(f *framework.F) {
 	require.NoError(t, err)
 	require.Len(t, summary, 1)
 	require.Equal(t, summary[0]["Pending"], "0")
+	require.Equal(t, summary[0]["Running"], "0")
 	require.Equal(t, summary[0]["Dead"], "1")
 }

nomad/job_endpoint.go

@@ -1887,13 +1887,15 @@ func (j *Job) Dispatch(args *structs.JobDispatchRequest, reply *structs.JobDispa
 		return err
 	}
 
-	// Derive the child job and commit it via Raft
+	// Derive the child job and commit it via Raft - with initial status
 	dispatchJob := parameterizedJob.Copy()
 	dispatchJob.ID = structs.DispatchedID(parameterizedJob.ID, time.Now())
 	dispatchJob.ParentID = parameterizedJob.ID
 	dispatchJob.Name = dispatchJob.ID
 	dispatchJob.SetSubmitTime()
 	dispatchJob.Dispatched = true
+	dispatchJob.Status = ""
+	dispatchJob.StatusDescription = ""
 
 	// Merge in the meta data
 	for k, v := range args.Meta {

nomad/job_endpoint_test.go

@@ -6401,6 +6401,117 @@ func TestJobEndpoint_Dispatch(t *testing.T) {
 	}
 }
 
+// TestJobEndpoint_Dispatch_JobChildrenSummary asserts that the job summary is updated
+// appropriately as its dispatched/children jobs status are updated.
+func TestJobEndpoint_Dispatch_JobChildrenSummary(t *testing.T) {
+	t.Parallel()
+
+	s1, cleanupS1 := TestServer(t, func(c *Config) {
+		c.NumSchedulers = 0 // Prevent automatic dequeue
+	})
+	defer cleanupS1()
+
+	state := s1.fsm.State()
+
+	codec := rpcClient(t, s1)
+	testutil.WaitForLeader(t, s1.RPC)
+
+	node := mock.Node()
+	require.NoError(t, state.UpsertNode(structs.MsgTypeTestSetup, 1, node))
+
+	parameterizedJob := mock.BatchJob()
+	parameterizedJob.ParameterizedJob = &structs.ParameterizedJobConfig{}
+
+	// Create the register request
+	regReq := &structs.JobRegisterRequest{
+		Job: parameterizedJob,
+		WriteRequest: structs.WriteRequest{
+			Region:    "global",
+			Namespace: parameterizedJob.Namespace,
+		},
+	}
+	var regResp structs.JobRegisterResponse
+	require.NoError(t, msgpackrpc.CallWithCodec(codec, "Job.Register", regReq, &regResp))
+
+	jobChildren := func() *structs.JobChildrenSummary {
+		summary, err := state.JobSummaryByID(nil, parameterizedJob.Namespace, parameterizedJob.ID)
+		require.NoError(t, err)
+
+		return summary.Children
+	}
+	require.Equal(t, &structs.JobChildrenSummary{}, jobChildren())
+
+	// dispatch a child job
+	dispatchReq := &structs.JobDispatchRequest{
+		JobID: parameterizedJob.ID,
+		WriteRequest: structs.WriteRequest{
+			Region:    "global",
+			Namespace: parameterizedJob.Namespace,
+		},
+	}
+	var dispatchResp structs.JobDispatchResponse
+	err := msgpackrpc.CallWithCodec(codec, "Job.Dispatch", dispatchReq, &dispatchResp)
+	require.NoError(t, err)
+
+	nextIdx := dispatchResp.Index + 1
+
+	require.Equal(t, &structs.JobChildrenSummary{Pending: 1}, jobChildren())
+
+	dispatchedJob, err := state.JobByID(nil, parameterizedJob.Namespace, dispatchResp.DispatchedJobID)
+	require.NoError(t, err)
+	require.NotNil(t, dispatchedJob)
+
+	dispatchedStatus := func() string {
+		job, err := state.JobByID(nil, dispatchedJob.Namespace, dispatchedJob.ID)
+		require.NoError(t, err)
+		require.NotNil(t, job)
+
+		return job.Status
+	}
+
+	// Let's start a alloc for the dispatch job and walk through states
+	// Note that job summary reports 1 running even when alloc is pending!
+	nextIdx++
+	alloc := mock.Alloc()
+	alloc.Job = dispatchedJob
+	alloc.JobID = dispatchedJob.ID
+	alloc.TaskGroup = dispatchedJob.TaskGroups[0].Name
+	alloc.Namespace = dispatchedJob.Namespace
+	alloc.ClientStatus = structs.AllocClientStatusPending
+	err = s1.State().UpsertAllocs(structs.MsgTypeTestSetup, nextIdx, []*structs.Allocation{alloc})
+	require.NoError(t, err)
+	require.Equal(t, &structs.JobChildrenSummary{Running: 1}, jobChildren())
+	require.Equal(t, structs.JobStatusRunning, dispatchedStatus())
+
+	// mark the creation eval as completed
+	nextIdx++
+	eval, err := state.EvalByID(nil, dispatchResp.EvalID)
+	require.NoError(t, err)
+	eval = eval.Copy()
+	eval.Status = structs.EvalStatusComplete
+	require.NoError(t, state.UpsertEvals(structs.MsgTypeTestSetup, nextIdx, []*structs.Evaluation{eval}))
+
+	updateAllocStatus := func(status string) {
+		nextIdx++
+		nalloc, err := state.AllocByID(nil, alloc.ID)
+		require.NoError(t, err)
+		nalloc = nalloc.Copy()
+		nalloc.ClientStatus = status
+		err = s1.State().UpdateAllocsFromClient(structs.MsgTypeTestSetup, nextIdx, []*structs.Allocation{nalloc})
+		require.NoError(t, err)
+	}
+
+	// job should remain remaining when alloc runs
+	updateAllocStatus(structs.AllocClientStatusRunning)
+	require.Equal(t, &structs.JobChildrenSummary{Running: 1}, jobChildren())
+	require.Equal(t, structs.JobStatusRunning, dispatchedStatus())
+
+	// job should be dead after alloc completes
+	updateAllocStatus(structs.AllocClientStatusComplete)
+	require.Equal(t, &structs.JobChildrenSummary{Dead: 1}, jobChildren())
+	require.Equal(t, structs.JobStatusDead, dispatchedStatus())
+}
+
 func TestJobEndpoint_Scale(t *testing.T) {
 	t.Parallel()
 	require := require.New(t)

nomad/periodic.go

@@ -444,12 +444,14 @@ func (p *PeriodicDispatch) deriveJob(periodicJob *structs.Job, time time.Time) (
 	}()
 
 	// Create a copy of the periodic job, give it a derived ID/Name and make it
-	// non-periodic.
+	// non-periodic in initial status
 	derived = periodicJob.Copy()
 	derived.ParentID = periodicJob.ID
 	derived.ID = p.derivedJobID(periodicJob, time)
 	derived.Name = derived.ID
 	derived.Periodic = nil
+	derived.Status = ""
+	derived.StatusDescription = ""
 	return
 }