lib/lsf/dispatch_test.go

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 package lsf
   6
   7 import (
   8         "context"
   9         "fmt"
  10         "math/rand"
  11         "os/exec"
  12         "strconv"
  13         "sync"
  14         "testing"
  15         "time"
  16
  17         "git.arvados.org/arvados.git/lib/config"
  18         "git.arvados.org/arvados.git/sdk/go/arvados"
  19         "git.arvados.org/arvados.git/sdk/go/arvadostest"
  20         "git.arvados.org/arvados.git/sdk/go/ctxlog"
  21         "github.com/prometheus/client_golang/prometheus"
  22         "gopkg.in/check.v1"
  23 )
  24
  25 func Test(t *testing.T) {
  26         check.TestingT(t)
  27 }
  28
  29 var _ = check.Suite(&suite{})
  30
  31 type suite struct {
  32         disp *dispatcher
  33 }
  34
  35 func (s *suite) TearDownTest(c *check.C) {
  36         arvados.NewClientFromEnv().RequestAndDecode(nil, "POST", "database/reset", nil, nil)
  37 }
  38
  39 func (s *suite) SetUpTest(c *check.C) {
  40         cfg, err := config.NewLoader(nil, ctxlog.TestLogger(c)).Load()
  41         c.Assert(err, check.IsNil)
  42         cluster, err := cfg.GetCluster("")
  43         c.Assert(err, check.IsNil)
  44         cluster.Containers.CloudVMs.PollInterval = arvados.Duration(time.Second)
  45         s.disp = newHandler(context.Background(), cluster, arvadostest.Dispatch1Token, prometheus.NewRegistry()).(*dispatcher)
  46         s.disp.lsfcli.stubCommand = func(string, ...string) *exec.Cmd {
  47                 return exec.Command("bash", "-c", "echo >&2 unimplemented stub; false")
  48         }
  49 }
  50
  51 type lsfstub struct {
  52         sudoUser  string
  53         errorRate float64
  54 }
  55
  56 func (stub lsfstub) stubCommand(s *suite, c *check.C) func(prog string, args ...string) *exec.Cmd {
  57         mtx := sync.Mutex{}
  58         nextjobid := 100
  59         fakejobq := map[int]string{}
  60         return func(prog string, args ...string) *exec.Cmd {
  61                 c.Logf("stubCommand: %q %q", prog, args)
  62                 if rand.Float64() < stub.errorRate {
  63                         return exec.Command("bash", "-c", "echo >&2 'stub random failure' && false")
  64                 }
  65                 if stub.sudoUser != "" && len(args) > 3 &&
  66                         prog == "sudo" &&
  67                         args[0] == "-E" &&
  68                         args[1] == "-u" &&
  69                         args[2] == stub.sudoUser {
  70                         prog, args = args[3], args[4:]
  71                 }
  72                 switch prog {
  73                 case "bsub":
  74                         defaultArgs := s.disp.Cluster.Containers.LSF.BsubArgumentsList
  75                         c.Assert(args, check.HasLen, 4+len(defaultArgs))
  76                         c.Check(args[:len(defaultArgs)], check.DeepEquals, defaultArgs)
  77                         args = args[len(defaultArgs):]
  78
  79                         c.Check(args[0], check.Equals, "-J")
  80                         switch args[1] {
  81                         case arvadostest.LockedContainerUUID:
  82                                 c.Check(args, check.DeepEquals, []string{"-J", arvadostest.LockedContainerUUID, "-R", "rusage[mem=11701MB:tmp=0MB] affinity[core(4)]"})
  83                                 mtx.Lock()
  84                                 fakejobq[nextjobid] = args[1]
  85                                 nextjobid++
  86                                 mtx.Unlock()
  87                         case arvadostest.QueuedContainerUUID:
  88                                 c.Check(args, check.DeepEquals, []string{"-J", arvadostest.QueuedContainerUUID, "-R", "rusage[mem=11701MB:tmp=45777MB] affinity[core(4)]"})
  89                                 mtx.Lock()
  90                                 fakejobq[nextjobid] = args[1]
  91                                 nextjobid++
  92                                 mtx.Unlock()
  93                         default:
  94                                 c.Errorf("unexpected uuid passed to bsub: args %q", args)
  95                                 return exec.Command("false")
  96                         }
  97                         return exec.Command("echo", "submitted job")
  98                 case "bjobs":
  99                         c.Check(args, check.DeepEquals, []string{"-u", "all", "-noheader", "-o", "jobid stat job_name:30"})
 100                         out := ""
 101                         for jobid, uuid := range fakejobq {
 102                                 out += fmt.Sprintf(`%d %s %s\n`, jobid, "RUN", uuid)
 103                         }
 104                         c.Logf("bjobs out: %q", out)
 105                         return exec.Command("printf", out)
 106                 case "bkill":
 107                         killid, _ := strconv.Atoi(args[0])
 108                         if uuid, ok := fakejobq[killid]; !ok {
 109                                 return exec.Command("bash", "-c", fmt.Sprintf("printf >&2 'Job <%d>: No matching job found\n'", killid))
 110                         } else if uuid == "" {
 111                                 return exec.Command("bash", "-c", fmt.Sprintf("printf >&2 'Job <%d>: Job has already finished\n'", killid))
 112                         } else {
 113                                 go func() {
 114                                         time.Sleep(time.Millisecond)
 115                                         mtx.Lock()
 116                                         delete(fakejobq, killid)
 117                                         mtx.Unlock()
 118                                 }()
 119                                 return exec.Command("bash", "-c", fmt.Sprintf("printf 'Job <%d> is being terminated\n'", killid))
 120                         }
 121                 default:
 122                         return exec.Command("bash", "-c", fmt.Sprintf("echo >&2 'stub: command not found: %+q'", prog))
 123                 }
 124         }
 125 }
 126
 127 func (s *suite) TestSubmit(c *check.C) {
 128         s.disp.lsfcli.stubCommand = lsfstub{
 129                 errorRate: 0.1,
 130                 sudoUser:  s.disp.Cluster.Containers.LSF.BsubSudoUser,
 131         }.stubCommand(s, c)
 132         s.disp.Start()
 133         deadline := time.Now().Add(20 * time.Second)
 134         for range time.NewTicker(time.Second).C {
 135                 if time.Now().After(deadline) {
 136                         c.Error("timed out")
 137                         break
 138                 }
 139                 // "queuedcontainer" should be running
 140                 if _, ok := s.disp.lsfqueue.JobID(arvadostest.QueuedContainerUUID); !ok {
 141                         continue
 142                 }
 143                 // "lockedcontainer" should be cancelled because it
 144                 // has priority 0 (no matching container requests)
 145                 if _, ok := s.disp.lsfqueue.JobID(arvadostest.LockedContainerUUID); ok {
 146                         continue
 147                 }
 148                 var ctr arvados.Container
 149                 if err := s.disp.arvDispatcher.Arv.Get("containers", arvadostest.LockedContainerUUID, nil, &ctr); err != nil {
 150                         c.Logf("error getting container state for %s: %s", arvadostest.LockedContainerUUID, err)
 151                         continue
 152                 }
 153                 if ctr.State != arvados.ContainerStateQueued {
 154                         c.Logf("LockedContainer is not in the LSF queue but its arvados record has not been updated to state==Queued (state is %q)", ctr.State)
 155                         continue
 156                 }
 157                 c.Log("reached desired state")
 158                 break
 159         }
 160 }