C++ Try::size方法代码示例

TEST_F(ProvisionerPathTest, ListProvisionerContainers)
{
  ContainerID child1;  // parent1/child1
  ContainerID child2;  // parent1/child2
  ContainerID child3;  // parent2/child3
  ContainerID parent1; // parent1
  ContainerID parent2; // parent2

  child1.set_value("child1");
  child1.mutable_parent()->set_value("parent1");
  child2.set_value("child2");
  child2.mutable_parent()->set_value("parent1");
  child3.set_value("child3");
  child3.mutable_parent()->set_value("parent2");
  parent1.set_value("parent1");
  parent2.set_value("parent2");

  const string provisionerDir = os::getcwd();
  const string containerDir1 = paths::getContainerDir(provisionerDir, child1);
  const string containerDir2 = paths::getContainerDir(provisionerDir, child2);
  const string containerDir3 = paths::getContainerDir(provisionerDir, child3);

  ASSERT_SOME(os::mkdir(containerDir1));
  ASSERT_SOME(os::mkdir(containerDir2));
  ASSERT_SOME(os::mkdir(containerDir3));

  Try<hashset<ContainerID>> containerIds =
    paths::listContainers(provisionerDir);

  ASSERT_SOME(containerIds);

  EXPECT_TRUE(containerIds->contains(parent1));
  EXPECT_TRUE(containerIds->contains(parent2));
  EXPECT_TRUE(containerIds->contains(child1));
  EXPECT_TRUE(containerIds->contains(child2));
  EXPECT_TRUE(containerIds->contains(child3));
  EXPECT_EQ(5u, containerIds->size());
}

Future<string> StoreProcess::_fetchImage(const Image::Appc& appc)
{
  VLOG(1) << "Fetching image '" << appc.name() << "'";

  Try<string> _tmpFetchDir = os::mkdtemp(
      path::join(paths::getStagingDir(rootDir), "XXXXXX"));

  if (_tmpFetchDir.isError()) {
    return Failure(
        "Failed to create temporary fetch directory for image '" +
        appc.name() + "': " + _tmpFetchDir.error());
  }

  const string tmpFetchDir = _tmpFetchDir.get();

  return fetcher->fetch(appc, Path(tmpFetchDir))
    .then(defer(self(), [=]() -> Future<string> {
      Try<list<string>> imageIds = os::ls(tmpFetchDir);
      if (imageIds.isError()) {
        return Failure(
            "Failed to list images under '" + tmpFetchDir +
            "': " + imageIds.error());
      }

      if (imageIds->size() != 1) {
        return Failure(
            "Unexpected number of images under '" + tmpFetchDir +
            "': " + stringify(imageIds->size()));
      }

      const string& imageId = imageIds->front();
      const string source = path::join(tmpFetchDir, imageId);
      const string target = paths::getImagePath(rootDir, imageId);

      if (os::exists(target)) {
        LOG(WARNING) << "Image id '" << imageId
                     << "' already exists in the store";
      } else {
        Try<Nothing> rename = os::rename(source, target);
        if (rename.isError()) {
          return Failure(
              "Failed to rename directory '" + source +
              "' to '" + target + "': " + rename.error());
        }
      }

      Try<Nothing> addCache = cache->add(imageId);
      if (addCache.isError()) {
        return Failure(
            "Failed to add image '" + appc.name() + "' with image id '" +
            imageId + "' to the cache: " + addCache.error());
      }

      Try<Nothing> rmdir = os::rmdir(tmpFetchDir);
      if (rmdir.isError()) {
        return Failure(
            "Failed to remove temporary fetch directory '" +
            tmpFetchDir + "' for image '" + appc.name() + "': " +
            rmdir.error());
      }

      return imageId;
    }));
}

// In this test, the framework is checkpointed so we expect the executor to
// persist across the slave restart and to have the same resource usage before
// and after.
TEST_F(ROOT_XFS_QuotaTest, CheckpointRecovery)
{
  slave::Flags flags = CreateSlaveFlags();
  Try<Owned<cluster::Master>> master = StartMaster();
  ASSERT_SOME(master);

  Owned<MasterDetector> detector = master.get()->createDetector();
  Try<Owned<cluster::Slave>> slave =
    StartSlave(detector.get(), CreateSlaveFlags());
  ASSERT_SOME(slave);

  FrameworkInfo frameworkInfo = DEFAULT_FRAMEWORK_INFO;
  frameworkInfo.set_checkpoint(true);

  MockScheduler sched;
  MesosSchedulerDriver driver(
      &sched, frameworkInfo, master.get()->pid, DEFAULT_CREDENTIAL);

  EXPECT_CALL(sched, registered(_, _, _));

  Future<vector<Offer>> offers;
  EXPECT_CALL(sched, resourceOffers(_, _))
    .WillOnce(FutureArg<1>(&offers))
    .WillRepeatedly(Return()); // Ignore subsequent offers.

  driver.start();

  AWAIT_READY(offers);
  ASSERT_FALSE(offers->empty());

  Offer offer = offers.get()[0];

  TaskInfo task = createTask(
      offer.slave_id(),
      Resources::parse("cpus:1;mem:128;disk:1").get(),
      "dd if=/dev/zero of=file bs=1048576 count=1; sleep 1000");

  Future<TaskStatus> startingStatus;
  Future<TaskStatus> runningStatus;
  EXPECT_CALL(sched, statusUpdate(&driver, _))
    .WillOnce(FutureArg<1>(&startingStatus))
    .WillOnce(FutureArg<1>(&runningStatus));

  driver.launchTasks(offer.id(), {task});

  AWAIT_READY(startingStatus);
  EXPECT_EQ(task.task_id(), startingStatus->task_id());
  EXPECT_EQ(TASK_STARTING, startingStatus->state());

  AWAIT_READY(startingStatus);
  EXPECT_EQ(task.task_id(), runningStatus->task_id());
  EXPECT_EQ(TASK_RUNNING, runningStatus->state());

  Future<ResourceUsage> usage1 =
    process::dispatch(slave.get()->pid, &Slave::usage);
  AWAIT_READY(usage1);

  // We should have 1 executor using resources.
  ASSERT_EQ(1, usage1->executors().size());

  // Restart the slave.
  slave.get()->terminate();

  Future<SlaveReregisteredMessage> slaveReregisteredMessage =
    FUTURE_PROTOBUF(SlaveReregisteredMessage(), _, _);

  slave = StartSlave(detector.get(), flags);
  ASSERT_SOME(slave);

  // Wait for the slave to re-register.
  AWAIT_READY(slaveReregisteredMessage);

  Future<ResourceUsage> usage2 =
    process::dispatch(slave.get()->pid, &Slave::usage);
  AWAIT_READY(usage2);

  // We should have still have 1 executor using resources.
  ASSERT_EQ(1, usage1->executors().size());

  Try<std::list<string>> sandboxes = os::glob(path::join(
      slave::paths::getSandboxRootDir(mountPoint.get()),
      "*",
      "frameworks",
      "*",
      "executors",
      "*",
      "runs",
      "*"));

  ASSERT_SOME(sandboxes);

  // One sandbox and one symlink.
  ASSERT_EQ(2u, sandboxes->size());

  // Scan the remaining sandboxes. We ought to still have project IDs
  // assigned to them all.
  foreach (const string& sandbox, sandboxes.get()) {
//.........这里部分代码省略.........

// In this test, the framework is not checkpointed. This ensures that when we
// stop the slave, the executor is killed and we will need to recover the
// working directories without getting any checkpointed recovery state.
TEST_F(ROOT_XFS_QuotaTest, NoCheckpointRecovery)
{
  Try<Owned<cluster::Master>> master = StartMaster();
  ASSERT_SOME(master);

  slave::Flags flags = CreateSlaveFlags();

  Fetcher fetcher(flags);
  Try<MesosContainerizer*> _containerizer =
    MesosContainerizer::create(flags, true, &fetcher);

  ASSERT_SOME(_containerizer);

  Owned<MesosContainerizer> containerizer(_containerizer.get());

  Owned<MasterDetector> detector = master.get()->createDetector();

  Try<Owned<cluster::Slave>> slave = StartSlave(
      detector.get(),
      containerizer.get(),
      flags);

  ASSERT_SOME(slave);

  MockScheduler sched;

  MesosSchedulerDriver driver(
      &sched, DEFAULT_FRAMEWORK_INFO, master.get()->pid, DEFAULT_CREDENTIAL);

  EXPECT_CALL(sched, registered(_, _, _));

  Future<vector<Offer>> offers;
  EXPECT_CALL(sched, resourceOffers(_, _))
    .WillOnce(FutureArg<1>(&offers))
    .WillRepeatedly(Return()); // Ignore subsequent offers.

  driver.start();

  AWAIT_READY(offers);
  ASSERT_FALSE(offers->empty());

  Offer offer = offers.get()[0];

  TaskInfo task = createTask(
      offer.slave_id(),
      Resources::parse("cpus:1;mem:128;disk:1").get(),
      "dd if=/dev/zero of=file bs=1048576 count=1; sleep 1000");

  Future<TaskStatus> runningStatus;
  Future<TaskStatus> startingStatus;
  EXPECT_CALL(sched, statusUpdate(&driver, _))
    .WillOnce(FutureArg<1>(&startingStatus))
    .WillOnce(FutureArg<1>(&runningStatus))
    .WillOnce(Return());

  driver.launchTasks(offer.id(), {task});

  AWAIT_READY(startingStatus);
  EXPECT_EQ(task.task_id(), startingStatus->task_id());
  EXPECT_EQ(TASK_STARTING, startingStatus->state());

  AWAIT_READY(runningStatus);
  EXPECT_EQ(task.task_id(), runningStatus->task_id());
  EXPECT_EQ(TASK_RUNNING, runningStatus->state());

  Future<ResourceUsage> usage1 =
    process::dispatch(slave.get()->pid, &Slave::usage);
  AWAIT_READY(usage1);

  // We should have 1 executor using resources.
  ASSERT_EQ(1, usage1->executors().size());

  Future<hashset<ContainerID>> containers = containerizer->containers();

  AWAIT_READY(containers);
  ASSERT_EQ(1u, containers->size());

  ContainerID containerId = *containers->begin();

  // Restart the slave.
  slave.get()->terminate();

  Future<SlaveReregisteredMessage> slaveReregisteredMessage =
    FUTURE_PROTOBUF(SlaveReregisteredMessage(), _, _);

  _containerizer = MesosContainerizer::create(flags, true, &fetcher);
  ASSERT_SOME(_containerizer);

  containerizer.reset(_containerizer.get());

  slave = StartSlave(detector.get(), containerizer.get(), flags);
  ASSERT_SOME(slave);

  // Wait until slave recovery is complete.
  Future<Nothing> _recover = FUTURE_DISPATCH(_, &Slave::_recover);
  AWAIT_READY_FOR(_recover, Seconds(60));

//.........这里部分代码省略.........