TEST(SorterTest, Update)
{
DRFSorter sorter;
sorter.add("a");
sorter.add("b");
sorter.add(Resources::parse("cpus:10;mem:10;disk:10").get());
sorter.allocated("a", Resources::parse("cpus:10;mem:10;disk:10").get());
// Construct an offer operation.
Resource volume = Resources::parse("disk", "5", "*").get();
volume.mutable_disk()->mutable_persistence()->set_id("ID");
volume.mutable_disk()->mutable_volume()->set_container_path("data");
Offer::Operation create;
create.set_type(Offer::Operation::CREATE);
create.mutable_create()->add_volumes()->CopyFrom(volume);
// Compute the updated allocation.
Resources allocation = sorter.allocation("a");
Try<Resources> newAllocation = allocation.apply(create);
ASSERT_SOME(newAllocation);
// Update the resources for the client.
sorter.update("a", allocation, newAllocation.get());
EXPECT_EQ(newAllocation.get(), sorter.allocation("a"));
}
// We aggregate resources from multiple slaves into the sorter.
// Since non-scalar resources don't aggregate well across slaves,
// we need to keep track of the SlaveIDs of the resources. This
// tests that no resources vanish in the process of aggregation
// by inspecting the result of 'allocation'.
TEST(SorterTest, MultipleSlaves)
{
DRFSorter sorter;
SlaveID slaveA;
slaveA.set_value("agentA");
SlaveID slaveB;
slaveB.set_value("agentB");
sorter.add("framework");
Resources slaveResources =
Resources::parse("cpus:2;mem:512;ports:[31000-32000]").get();
sorter.add(slaveA, slaveResources);
sorter.add(slaveB, slaveResources);
sorter.allocated("framework", slaveA, slaveResources);
sorter.allocated("framework", slaveB, slaveResources);
EXPECT_EQ(2u, sorter.allocation("framework").size());
EXPECT_EQ(slaveResources, sorter.allocation("framework", slaveA));
EXPECT_EQ(slaveResources, sorter.allocation("framework", slaveB));
}
TEST(SorterTest, UpdateAllocation)
{
DRFSorter sorter;
SlaveID slaveId;
slaveId.set_value("agentId");
sorter.add("a");
sorter.add("b");
sorter.add(slaveId, Resources::parse("cpus:10;mem:10;disk:10").get());
sorter.allocated(
"a", slaveId, Resources::parse("cpus:10;mem:10;disk:10").get());
// Construct an offer operation.
Resource volume = Resources::parse("disk", "5", "*").get();
volume.mutable_disk()->mutable_persistence()->set_id("ID");
volume.mutable_disk()->mutable_volume()->set_container_path("data");
// Compute the updated allocation.
Resources oldAllocation = sorter.allocation("a", slaveId);
Try<Resources> newAllocation = oldAllocation.apply(CREATE(volume));
ASSERT_SOME(newAllocation);
// Update the resources for the client.
sorter.update("a", slaveId, oldAllocation, newAllocation.get());
hashmap<SlaveID, Resources> allocation = sorter.allocation("a");
EXPECT_EQ(1u, allocation.size());
EXPECT_EQ(newAllocation.get(), allocation[slaveId]);
EXPECT_EQ(newAllocation.get(), sorter.allocation("a", slaveId));
}
// We aggregate resources from multiple slaves into the sorter. Since
// non-scalar resources don't aggregate well across slaves, we need to
// keep track of the SlaveIDs of the resources. This tests that no
// resources vanish in the process of aggregation by performing update
// allocations from unreserved to reserved resources.
TEST(SorterTest, MultipleSlavesUpdateAllocation)
{
DRFSorter sorter;
SlaveID slaveA;
slaveA.set_value("agentA");
SlaveID slaveB;
slaveB.set_value("agentB");
sorter.add("framework");
Resources slaveResources =
Resources::parse("cpus:2;mem:512;disk:10;ports:[31000-32000]").get();
sorter.add(slaveA, slaveResources);
sorter.add(slaveB, slaveResources);
sorter.allocated("framework", slaveA, slaveResources);
sorter.allocated("framework", slaveB, slaveResources);
// Construct an offer operation.
Resource volume = Resources::parse("disk", "5", "*").get();
volume.mutable_disk()->mutable_persistence()->set_id("ID");
volume.mutable_disk()->mutable_volume()->set_container_path("data");
// Compute the updated allocation.
Try<Resources> newAllocation = slaveResources.apply(CREATE(volume));
ASSERT_SOME(newAllocation);
// Update the resources for the client.
sorter.update("framework", slaveA, slaveResources, newAllocation.get());
sorter.update("framework", slaveB, slaveResources, newAllocation.get());
EXPECT_EQ(2u, sorter.allocation("framework").size());
EXPECT_EQ(newAllocation.get(), sorter.allocation("framework", slaveA));
EXPECT_EQ(newAllocation.get(), sorter.allocation("framework", slaveB));
}
// This test verifies that revocable resources are properly accounted
// for in the DRF sorter.
TEST(SorterTest, RevocableResources)
{
DRFSorter sorter;
SlaveID slaveId;
slaveId.set_value("agentId");
sorter.add("a");
sorter.add("b");
// Create a total resource pool of 10 revocable cpus and 10 cpus and
// 10 MB mem.
Resource revocable = Resources::parse("cpus", "10", "*").get();
revocable.mutable_revocable();
Resources total = Resources::parse("cpus:10;mem:100").get() + revocable;
sorter.add(slaveId, revocable);
// Dominant share of "a" is 0.1 (cpus).
Resources a = Resources::parse("cpus:2;mem:1").get();
sorter.allocated("a", slaveId, a);
// Dominant share of "b" is 0.5 (cpus).
revocable = Resources::parse("cpus", "9", "*").get();
revocable.mutable_revocable();
Resources b = Resources::parse("cpus:1;mem:1").get() + revocable;
sorter.allocated("b", slaveId, b);
// Check that the allocations are correct.
ASSERT_EQ(a, sorter.allocation("a", slaveId));
ASSERT_EQ(b, sorter.allocation("b", slaveId));
// Check that the sort is correct.
list<string> sorted = sorter.sort();
ASSERT_EQ(2u, sorted.size());
EXPECT_EQ("a", sorted.front());
EXPECT_EQ("b", sorted.back());
}
