@Test
public void simpleTest() {
OverbookSplitter splitter = new OverbookSplitter();
List<Instance> instances = new ArrayList<>();
Model m0 = new DefaultModel();
Node n = m0.newNode(0);
m0.getMapping().addOnlineNode(n);
m0.getMapping().addOnlineNode(m0.newNode(1));
Model m1 = new DefaultModel();
m1.getMapping().addOnlineNode(m1.newNode(2));
m1.getMapping().addOnlineNode(m1.newNode(3));
instances.add(new Instance(m0, new ArrayList<>(), new MinMTTR()));
instances.add(new Instance(m1, new ArrayList<>(), new MinMTTR()));
Set<Node> all = new HashSet<>(m0.getMapping().getAllNodes());
all.addAll(m1.getMapping().getAllNodes());
TIntIntHashMap nodeIndex = Instances.makeNodeIndex(instances);
// Only nodes in m0
Overbook oSimple = new Overbook(n, "cpu", 2);
Assert.assertTrue(splitter.split(oSimple, null, instances, new TIntIntHashMap(), nodeIndex));
Assert.assertTrue(instances.get(0).getSatConstraints().contains(oSimple));
Assert.assertFalse(instances.get(1).getSatConstraints().contains(oSimple));
}
/**
* A VM try to come into the quarantine zone.
*
* @throws org.btrplace.scheduler.SchedulerException
*/
@Test
public void testWithNoSolution1() throws SchedulerException {
Model mo = new DefaultModel();
VM vm1 = mo.newVM();
VM vm2 = mo.newVM();
VM vm3 = mo.newVM();
VM vm4 = mo.newVM();
Node n1 = mo.newNode();
Node n2 = mo.newNode();
Node n3 = mo.newNode();
Mapping map =
new MappingFiller(mo.getMapping())
.on(n1, n2, n3)
.run(n1, vm1)
.run(n2, vm2, vm3)
.run(n3, vm4)
.get();
Quarantine q = new Quarantine(n1);
List<SatConstraint> cstrs = new ArrayList<>();
cstrs.add(q);
cstrs.add(new Fence(vm4, Collections.singleton(n1)));
ChocoScheduler cra = new DefaultChocoScheduler();
ReconfigurationPlan p = cra.solve(mo, cstrs);
Assert.assertNull(p);
}
@Test
public void testContinuousIsSatisfied() {
Model mo = new DefaultModel();
List<VM> vms = Util.newVMs(mo, 5);
List<Node> ns = Util.newNodes(mo, 5);
Mapping map = mo.getMapping();
map.addOnlineNode(ns.get(0));
map.addOnlineNode(ns.get(1));
map.addOnlineNode(ns.get(2));
map.addRunningVM(vms.get(0), ns.get(0));
map.addRunningVM(vms.get(1), ns.get(1));
map.addReadyVM(vms.get(2));
map.addRunningVM(vms.get(3), ns.get(2));
Quarantine q = new Quarantine(ns.get(0));
ReconfigurationPlan plan = new DefaultReconfigurationPlan(mo);
Assert.assertEquals(q.isSatisfied(plan), true);
plan.add(new ShutdownVM(vms.get(1), ns.get(1), 1, 2));
Assert.assertEquals(q.isSatisfied(plan), true);
plan.add(new BootVM(vms.get(2), ns.get(0), 0, 1));
Assert.assertEquals(q.isSatisfied(plan), false);
plan = new DefaultReconfigurationPlan(mo);
plan.add(new BootVM(vms.get(2), ns.get(2), 0, 1));
Assert.assertEquals(new Quarantine(ns.get(1)).isSatisfied(plan), true);
plan.add(new MigrateVM(vms.get(3), ns.get(2), ns.get(1), 0, 1));
Assert.assertEquals(new Quarantine(ns.get(1)).isSatisfied(plan), false);
plan = new DefaultReconfigurationPlan(mo);
plan.add(new MigrateVM(vms.get(1), ns.get(1), ns.get(0), 0, 1));
Assert.assertEquals(q.isSatisfied(plan), false);
}
@Test
public void testApply() {
AllocateEvent na = new AllocateEvent(vms.get(0), "foo", 3);
Model mo = new DefaultModel();
Mapping map = mo.getMapping();
map.addOnlineNode(ns.get(0));
map.addRunningVM(vms.get(0), ns.get(0));
Assert.assertFalse(na.apply(mo));
ShareableResource rc = new ShareableResource("foo");
mo.attach(rc);
Assert.assertTrue(na.apply(mo));
Assert.assertEquals(3, rc.getConsumption(vms.get(0)));
}
private boolean discreteCheck(Model mo) {
Mapping map = mo.getMapping();
for (VM vm : getVMs()) {
if (map.isRunning(vm)) {
Node host = map.getVMLocation(vm);
Set<VM> on = map.getRunningVMs(host);
// Check for other VMs on the node. If they are not in the constraint
// it's a violation
for (VM vm2 : on) {
if (!vm2.equals(vm) && !getVMs().contains(vm2)) {
return false;
}
}
}
}
return true;
}
@Override
public boolean startsWith(Model mo) {
if (getConstraint().isContinuous()) {
boolean ret = discreteCheck(mo);
if (ret) {
Mapping map = mo.getMapping();
for (VM vm : getVMs()) {
if (map.isRunning(vm)) {
privateNodes.add(map.getVMLocation(vm));
}
}
for (Node n : map.getOnlineNodes()) {
if (map.getRunningVMs(n).isEmpty()) {
idleNodes.add(n);
}
}
}
return ret;
}
return true;
}
@Test
public void testWithSatisfiedModel() throws SchedulerException {
Model mo = new DefaultModel();
VM vm1 = mo.newVM();
VM vm2 = mo.newVM();
VM vm3 = mo.newVM();
VM vm4 = mo.newVM();
Node n1 = mo.newNode();
Node n2 = mo.newNode();
Node n3 = mo.newNode();
Mapping map =
new MappingFiller(mo.getMapping())
.on(n1, n2, n3)
.run(n1, vm1)
.run(n2, vm2, vm3)
.run(n3, vm4)
.get();
Quarantine q = new Quarantine(n2);
ChocoScheduler cra = new DefaultChocoScheduler();
ReconfigurationPlan p = cra.solve(mo, Collections.<SatConstraint>singleton(q));
Assert.assertNotNull(p);
}
/**
* Unit tests for {@link AmongSplitter}.
*
* @author Fabien Hermenier
*/
public class AmongSplitterTest {
public static final AmongSplitter splitter = new AmongSplitter();
public static final Model mo = new DefaultModel();
public static final VM vm1 = mo.newVM();
public static final VM vm2 = mo.newVM();
public static final VM vm3 = mo.newVM();
public static final VM vm4 = mo.newVM();
public static final VM vm5 = mo.newVM();
public static final Node n1 = mo.newNode();
public static final Node n2 = mo.newNode();
public static final Node n3 = mo.newNode();
public static final Node n4 = mo.newNode();
public static final Node n5 = mo.newNode();
public static final Mapping map =
new MappingFiller(mo.getMapping())
.on(n1, n2, n3, n4)
.run(n1, vm1, vm2)
.run(n2, vm3)
.run(n3, vm4)
.run(n4, vm5)
.get();
@Test
public void testSplittable() throws SchedulerException {
List<VM> vms = Arrays.asList(vm1, vm2, vm3);
Collection<Collection<Node>> parts = new ArrayList<>();
parts.add(Arrays.asList(n1, n2));
parts.add(Arrays.asList(n3));
parts.add(Arrays.asList(n4));
Among single = new Among(vms, parts);
/*
N1 v1 v2
N2 v3
---
N3 v4
--
N4 v5
*/
FixedNodeSetsPartitioning partitionner = new FixedNodeSetsPartitioning(parts);
partitionner.setPartitions(parts);
List<Instance> instances =
partitionner.split(
new DefaultParameters(),
new Instance(mo, Collections.<SatConstraint>emptyList(), new MinMTTR()));
TIntIntHashMap vmIndex = Instances.makeVMIndex(instances);
TIntIntHashMap nodeIndex = Instances.makeNodeIndex(instances);
splitter.split(single, new Instance(mo, new MinMTTR()), instances, vmIndex, nodeIndex);
Among a = (Among) instances.get(0).getSatConstraints().iterator().next();
Assert.assertEquals(a.getGroupsOfNodes().size(), 1);
Assert.assertEquals(a.getInvolvedNodes(), Arrays.asList(n1, n2));
for (Instance i : instances) {
System.out.println(i.getSatConstraints());
}
}
}
