services/crunch-dispatch-slurm/crunch-dispatch-slurm_test.go

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 package main
   6
   7 import (
   8         "bytes"
   9         "context"
  10         "errors"
  11         "fmt"
  12         "io"
  13         "io/ioutil"
  14         "net/http"
  15         "net/http/httptest"
  16         "os"
  17         "os/exec"
  18         "strings"
  19         "testing"
  20         "time"
  21
  22         "git.curoverse.com/arvados.git/lib/dispatchcloud"
  23         "git.curoverse.com/arvados.git/sdk/go/arvados"
  24         "git.curoverse.com/arvados.git/sdk/go/arvadosclient"
  25         "git.curoverse.com/arvados.git/sdk/go/arvadostest"
  26         "git.curoverse.com/arvados.git/sdk/go/dispatch"
  27         "github.com/Sirupsen/logrus"
  28         . "gopkg.in/check.v1"
  29 )
  30
  31 // Gocheck boilerplate
  32 func Test(t *testing.T) {
  33         TestingT(t)
  34 }
  35
  36 var _ = Suite(&IntegrationSuite{})
  37 var _ = Suite(&StubbedSuite{})
  38
  39 type IntegrationSuite struct {
  40         disp  Dispatcher
  41         slurm slurmFake
  42 }
  43
  44 func (s *IntegrationSuite) SetUpTest(c *C) {
  45         arvadostest.StartAPI()
  46         os.Setenv("ARVADOS_API_TOKEN", arvadostest.Dispatch1Token)
  47         s.disp = Dispatcher{}
  48         s.disp.setup()
  49         s.slurm = slurmFake{}
  50 }
  51
  52 func (s *IntegrationSuite) TearDownTest(c *C) {
  53         arvadostest.ResetEnv()
  54         arvadostest.StopAPI()
  55 }
  56
  57 type slurmFake struct {
  58         didBatch      [][]string
  59         didCancel     []string
  60         didRelease    []string
  61         didRenice     [][]string
  62         queue         string
  63         rejectNice10K bool
  64         // If non-nil, run this func during the 2nd+ call to Cancel()
  65         onCancel func()
  66         // Error returned by Batch()
  67         errBatch error
  68 }
  69
  70 func (sf *slurmFake) Batch(script io.Reader, args []string) error {
  71         sf.didBatch = append(sf.didBatch, args)
  72         return sf.errBatch
  73 }
  74
  75 func (sf *slurmFake) QueueCommand(args []string) *exec.Cmd {
  76         return exec.Command("echo", sf.queue)
  77 }
  78
  79 func (sf *slurmFake) Release(name string) error {
  80         sf.didRelease = append(sf.didRelease, name)
  81         return nil
  82 }
  83
  84 func (sf *slurmFake) Renice(name string, nice int64) error {
  85         sf.didRenice = append(sf.didRenice, []string{name, fmt.Sprintf("%d", nice)})
  86         if sf.rejectNice10K && nice > 10000 {
  87                 return errors.New("scontrol: error: Invalid nice value, must be between -10000 and 10000")
  88         }
  89         return nil
  90 }
  91
  92 func (sf *slurmFake) Cancel(name string) error {
  93         sf.didCancel = append(sf.didCancel, name)
  94         if len(sf.didCancel) == 1 {
  95                 // simulate error on first attempt
  96                 return errors.New("something terrible happened")
  97         }
  98         if sf.onCancel != nil {
  99                 sf.onCancel()
 100         }
 101         return nil
 102 }
 103
 104 func (s *IntegrationSuite) integrationTest(c *C,
 105         expectBatch [][]string,
 106         runContainer func(*dispatch.Dispatcher, arvados.Container)) arvados.Container {
 107         arvadostest.ResetEnv()
 108
 109         arv, err := arvadosclient.MakeArvadosClient()
 110         c.Assert(err, IsNil)
 111
 112         // There should be one queued container
 113         params := arvadosclient.Dict{
 114                 "filters": [][]string{{"state", "=", "Queued"}},
 115         }
 116         var containers arvados.ContainerList
 117         err = arv.List("containers", params, &containers)
 118         c.Check(err, IsNil)
 119         c.Assert(len(containers.Items), Equals, 1)
 120
 121         s.disp.CrunchRunCommand = []string{"echo"}
 122
 123         ctx, cancel := context.WithCancel(context.Background())
 124         doneRun := make(chan struct{})
 125
 126         s.disp.Dispatcher = &dispatch.Dispatcher{
 127                 Arv:        arv,
 128                 PollPeriod: time.Second,
 129                 RunContainer: func(disp *dispatch.Dispatcher, ctr arvados.Container, status <-chan arvados.Container) {
 130                         go func() {
 131                                 runContainer(disp, ctr)
 132                                 s.slurm.queue = ""
 133                                 doneRun <- struct{}{}
 134                         }()
 135                         s.disp.runContainer(disp, ctr, status)
 136                         cancel()
 137                 },
 138         }
 139
 140         s.disp.slurm = &s.slurm
 141         s.disp.sqCheck = &SqueueChecker{
 142                 Logger: logrus.StandardLogger(),
 143                 Period: 500 * time.Millisecond,
 144                 Slurm:  s.disp.slurm,
 145         }
 146
 147         err = s.disp.Dispatcher.Run(ctx)
 148         <-doneRun
 149         c.Assert(err, Equals, context.Canceled)
 150
 151         s.disp.sqCheck.Stop()
 152
 153         c.Check(s.slurm.didBatch, DeepEquals, expectBatch)
 154
 155         // There should be no queued containers now
 156         err = arv.List("containers", params, &containers)
 157         c.Check(err, IsNil)
 158         c.Check(len(containers.Items), Equals, 0)
 159
 160         // Previously "Queued" container should now be in "Complete" state
 161         var container arvados.Container
 162         err = arv.Get("containers", "zzzzz-dz642-queuedcontainer", nil, &container)
 163         c.Check(err, IsNil)
 164         return container
 165 }
 166
 167 func (s *IntegrationSuite) TestNormal(c *C) {
 168         s.slurm = slurmFake{queue: "zzzzz-dz642-queuedcontainer 10000 100 PENDING Resources\n"}
 169         container := s.integrationTest(c,
 170                 nil,
 171                 func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
 172                         dispatcher.UpdateState(container.UUID, dispatch.Running)
 173                         time.Sleep(3 * time.Second)
 174                         dispatcher.UpdateState(container.UUID, dispatch.Complete)
 175                 })
 176         c.Check(container.State, Equals, arvados.ContainerStateComplete)
 177 }
 178
 179 func (s *IntegrationSuite) TestCancel(c *C) {
 180         s.slurm = slurmFake{queue: "zzzzz-dz642-queuedcontainer 10000 100 PENDING Resources\n"}
 181         readyToCancel := make(chan bool)
 182         s.slurm.onCancel = func() { <-readyToCancel }
 183         container := s.integrationTest(c,
 184                 nil,
 185                 func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
 186                         dispatcher.UpdateState(container.UUID, dispatch.Running)
 187                         time.Sleep(time.Second)
 188                         dispatcher.Arv.Update("containers", container.UUID,
 189                                 arvadosclient.Dict{
 190                                         "container": arvadosclient.Dict{"priority": 0}},
 191                                 nil)
 192                         readyToCancel <- true
 193                         close(readyToCancel)
 194                 })
 195         c.Check(container.State, Equals, arvados.ContainerStateCancelled)
 196         c.Check(len(s.slurm.didCancel) > 1, Equals, true)
 197         c.Check(s.slurm.didCancel[:2], DeepEquals, []string{"zzzzz-dz642-queuedcontainer", "zzzzz-dz642-queuedcontainer"})
 198 }
 199
 200 func (s *IntegrationSuite) TestMissingFromSqueue(c *C) {
 201         container := s.integrationTest(c,
 202                 [][]string{{
 203                         fmt.Sprintf("--job-name=%s", "zzzzz-dz642-queuedcontainer"),
 204                         fmt.Sprintf("--nice=%d", 10000),
 205                         fmt.Sprintf("--mem=%d", 11445),
 206                         fmt.Sprintf("--cpus-per-task=%d", 4),
 207                         fmt.Sprintf("--tmp=%d", 45777),
 208                 }},
 209                 func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
 210                         dispatcher.UpdateState(container.UUID, dispatch.Running)
 211                         time.Sleep(3 * time.Second)
 212                         dispatcher.UpdateState(container.UUID, dispatch.Complete)
 213                 })
 214         c.Check(container.State, Equals, arvados.ContainerStateCancelled)
 215 }
 216
 217 func (s *IntegrationSuite) TestSbatchFail(c *C) {
 218         s.slurm = slurmFake{errBatch: errors.New("something terrible happened")}
 219         container := s.integrationTest(c,
 220                 [][]string{{"--job-name=zzzzz-dz642-queuedcontainer", "--nice=10000", "--mem=11445", "--cpus-per-task=4", "--tmp=45777"}},
 221                 func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
 222                         dispatcher.UpdateState(container.UUID, dispatch.Running)
 223                         dispatcher.UpdateState(container.UUID, dispatch.Complete)
 224                 })
 225         c.Check(container.State, Equals, arvados.ContainerStateComplete)
 226
 227         arv, err := arvadosclient.MakeArvadosClient()
 228         c.Assert(err, IsNil)
 229
 230         var ll arvados.LogList
 231         err = arv.List("logs", arvadosclient.Dict{"filters": [][]string{
 232                 {"object_uuid", "=", container.UUID},
 233                 {"event_type", "=", "dispatch"},
 234         }}, &ll)
 235         c.Assert(err, IsNil)
 236         c.Assert(len(ll.Items), Equals, 1)
 237 }
 238
 239 type StubbedSuite struct {
 240         disp Dispatcher
 241 }
 242
 243 func (s *StubbedSuite) SetUpTest(c *C) {
 244         s.disp = Dispatcher{}
 245         s.disp.setup()
 246 }
 247
 248 func (s *StubbedSuite) TestAPIErrorGettingContainers(c *C) {
 249         apiStubResponses := make(map[string]arvadostest.StubResponse)
 250         apiStubResponses["/arvados/v1/api_client_authorizations/current"] = arvadostest.StubResponse{200, `{"uuid":"` + arvadostest.Dispatch1AuthUUID + `"}`}
 251         apiStubResponses["/arvados/v1/containers"] = arvadostest.StubResponse{500, string(`{}`)}
 252
 253         s.testWithServerStub(c, apiStubResponses, "echo", "error getting count of containers")
 254 }
 255
 256 func (s *StubbedSuite) testWithServerStub(c *C, apiStubResponses map[string]arvadostest.StubResponse, crunchCmd string, expected string) {
 257         apiStub := arvadostest.ServerStub{apiStubResponses}
 258
 259         api := httptest.NewServer(&apiStub)
 260         defer api.Close()
 261
 262         arv := &arvadosclient.ArvadosClient{
 263                 Scheme:    "http",
 264                 ApiServer: api.URL[7:],
 265                 ApiToken:  "abc123",
 266                 Client:    &http.Client{Transport: &http.Transport{}},
 267                 Retries:   0,
 268         }
 269
 270         buf := bytes.NewBuffer(nil)
 271         logrus.SetOutput(io.MultiWriter(buf, os.Stderr))
 272         defer logrus.SetOutput(os.Stderr)
 273
 274         s.disp.CrunchRunCommand = []string{crunchCmd}
 275
 276         ctx, cancel := context.WithCancel(context.Background())
 277         dispatcher := dispatch.Dispatcher{
 278                 Arv:        arv,
 279                 PollPeriod: time.Second,
 280                 RunContainer: func(disp *dispatch.Dispatcher, ctr arvados.Container, status <-chan arvados.Container) {
 281                         go func() {
 282                                 time.Sleep(time.Second)
 283                                 disp.UpdateState(ctr.UUID, dispatch.Running)
 284                                 disp.UpdateState(ctr.UUID, dispatch.Complete)
 285                         }()
 286                         s.disp.runContainer(disp, ctr, status)
 287                         cancel()
 288                 },
 289         }
 290
 291         go func() {
 292                 for i := 0; i < 80 && !strings.Contains(buf.String(), expected); i++ {
 293                         time.Sleep(100 * time.Millisecond)
 294                 }
 295                 cancel()
 296         }()
 297
 298         err := dispatcher.Run(ctx)
 299         c.Assert(err, Equals, context.Canceled)
 300
 301         c.Check(buf.String(), Matches, `(?ms).*`+expected+`.*`)
 302 }
 303
 304 func (s *StubbedSuite) TestNoSuchConfigFile(c *C) {
 305         err := s.disp.readConfig("/nosuchdir89j7879/8hjwr7ojgyy7")
 306         c.Assert(err, NotNil)
 307 }
 308
 309 func (s *StubbedSuite) TestBadSbatchArgsConfig(c *C) {
 310         tmpfile, err := ioutil.TempFile(os.TempDir(), "config")
 311         c.Check(err, IsNil)
 312         defer os.Remove(tmpfile.Name())
 313
 314         _, err = tmpfile.Write([]byte(`{"SbatchArguments": "oops this is not a string array"}`))
 315         c.Check(err, IsNil)
 316
 317         err = s.disp.readConfig(tmpfile.Name())
 318         c.Assert(err, NotNil)
 319 }
 320
 321 func (s *StubbedSuite) TestNoSuchArgInConfigIgnored(c *C) {
 322         tmpfile, err := ioutil.TempFile(os.TempDir(), "config")
 323         c.Check(err, IsNil)
 324         defer os.Remove(tmpfile.Name())
 325
 326         _, err = tmpfile.Write([]byte(`{"NoSuchArg": "Nobody loves me, not one tiny hunk."}`))
 327         c.Check(err, IsNil)
 328
 329         err = s.disp.readConfig(tmpfile.Name())
 330         c.Assert(err, IsNil)
 331         c.Check(0, Equals, len(s.disp.SbatchArguments))
 332 }
 333
 334 func (s *StubbedSuite) TestReadConfig(c *C) {
 335         tmpfile, err := ioutil.TempFile(os.TempDir(), "config")
 336         c.Check(err, IsNil)
 337         defer os.Remove(tmpfile.Name())
 338
 339         args := []string{"--arg1=v1", "--arg2", "--arg3=v3"}
 340         argsS := `{"SbatchArguments": ["--arg1=v1",  "--arg2", "--arg3=v3"]}`
 341         _, err = tmpfile.Write([]byte(argsS))
 342         c.Check(err, IsNil)
 343
 344         err = s.disp.readConfig(tmpfile.Name())
 345         c.Assert(err, IsNil)
 346         c.Check(args, DeepEquals, s.disp.SbatchArguments)
 347 }
 348
 349 func (s *StubbedSuite) TestSbatchArgs(c *C) {
 350         container := arvados.Container{
 351                 UUID:               "123",
 352                 RuntimeConstraints: arvados.RuntimeConstraints{RAM: 250000000, VCPUs: 2},
 353                 Priority:           1,
 354         }
 355
 356         for _, defaults := range [][]string{
 357                 nil,
 358                 {},
 359                 {"--arg1=v1", "--arg2"},
 360         } {
 361                 c.Logf("%#v", defaults)
 362                 s.disp.SbatchArguments = defaults
 363
 364                 args, err := s.disp.sbatchArgs(container)
 365                 c.Check(args, DeepEquals, append(defaults, "--job-name=123", "--nice=10000", "--mem=239", "--cpus-per-task=2", "--tmp=0"))
 366                 c.Check(err, IsNil)
 367         }
 368 }
 369
 370 func (s *StubbedSuite) TestSbatchInstanceTypeConstraint(c *C) {
 371         container := arvados.Container{
 372                 UUID:               "123",
 373                 RuntimeConstraints: arvados.RuntimeConstraints{RAM: 250000000, VCPUs: 2},
 374                 Priority:           1,
 375         }
 376
 377         for _, trial := range []struct {
 378                 types      map[string]arvados.InstanceType
 379                 sbatchArgs []string
 380                 err        error
 381         }{
 382                 // Choose node type => use --constraint arg
 383                 {
 384                         types: map[string]arvados.InstanceType{
 385                                 "a1.tiny":   {Name: "a1.tiny", Price: 0.02, RAM: 128000000, VCPUs: 1},
 386                                 "a1.small":  {Name: "a1.small", Price: 0.04, RAM: 256000000, VCPUs: 2},
 387                                 "a1.medium": {Name: "a1.medium", Price: 0.08, RAM: 512000000, VCPUs: 4},
 388                                 "a1.large":  {Name: "a1.large", Price: 0.16, RAM: 1024000000, VCPUs: 8},
 389                         },
 390                         sbatchArgs: []string{"--constraint=instancetype=a1.medium"},
 391                 },
 392                 // No node types configured => no slurm constraint
 393                 {
 394                         types:      nil,
 395                         sbatchArgs: []string{"--mem=239", "--cpus-per-task=2", "--tmp=0"},
 396                 },
 397                 // No node type is big enough => error
 398                 {
 399                         types: map[string]arvados.InstanceType{
 400                                 "a1.tiny": {Name: "a1.tiny", Price: 0.02, RAM: 128000000, VCPUs: 1},
 401                         },
 402                         err: dispatchcloud.ConstraintsNotSatisfiableError{},
 403                 },
 404         } {
 405                 c.Logf("%#v", trial)
 406                 s.disp.cluster = &arvados.Cluster{InstanceTypes: trial.types}
 407
 408                 args, err := s.disp.sbatchArgs(container)
 409                 c.Check(err == nil, Equals, trial.err == nil)
 410                 if trial.err == nil {
 411                         c.Check(args, DeepEquals, append([]string{"--job-name=123", "--nice=10000"}, trial.sbatchArgs...))
 412                 } else {
 413                         c.Check(len(err.(dispatchcloud.ConstraintsNotSatisfiableError).AvailableTypes), Equals, len(trial.types))
 414                 }
 415         }
 416 }
 417
 418 func (s *StubbedSuite) TestSbatchPartition(c *C) {
 419         container := arvados.Container{
 420                 UUID:                 "123",
 421                 RuntimeConstraints:   arvados.RuntimeConstraints{RAM: 250000000, VCPUs: 1},
 422                 SchedulingParameters: arvados.SchedulingParameters{Partitions: []string{"blurb", "b2"}},
 423                 Priority:             1,
 424         }
 425
 426         args, err := s.disp.sbatchArgs(container)
 427         c.Check(args, DeepEquals, []string{
 428                 "--job-name=123", "--nice=10000",
 429                 "--mem=239", "--cpus-per-task=1", "--tmp=0",
 430                 "--partition=blurb,b2",
 431         })
 432         c.Check(err, IsNil)
 433 }