use of org.apache.ignite.GridTestJob in project ignite by apache.
the class GridWeightedRandomLoadBalancingSpiSelfTest method testSingleNode.
/**
* @throws Exception If failed.
*/
@SuppressWarnings({ "ObjectEquality" })
public void testSingleNode() throws Exception {
List<ClusterNode> nodes = Collections.singletonList((ClusterNode) new GridTestNode(UUID.randomUUID()));
ClusterNode node = getSpi().getBalancedNode(new GridTestTaskSession(), nodes, new GridTestJob());
assert nodes.contains(node);
// Verify that same instance is returned every time.
ClusterNode balancedNode = getSpi().getBalancedNode(new GridTestTaskSession(), nodes, new GridTestJob());
assert node == balancedNode;
}
use of org.apache.ignite.GridTestJob in project ignite by apache.
the class GridWeightedRandomLoadBalancingSpiWeightedSelfTest method testWeights.
/**
* @throws Exception If test failed.
*/
public void testWeights() throws Exception {
List<ClusterNode> nodes = new ArrayList<>();
for (int i = 0; i < 10; i++) {
GridTestNode node = new GridTestNode(UUID.randomUUID());
node.addAttribute(U.spiAttribute(getSpi(), NODE_WEIGHT_ATTR_NAME), i + 1);
nodes.add(node);
}
// Seal it.
nodes = Collections.unmodifiableList(nodes);
int[] cnts = new int[10];
// Invoke load balancer a large number of times, so statistics won't lie.
for (int i = 0; i < 100000; i++) {
ClusterNode node = getSpi().getBalancedNode(new GridTestTaskSession(IgniteUuid.randomUuid()), nodes, new GridTestJob());
int weight = (Integer) node.attribute(U.spiAttribute(getSpi(), NODE_WEIGHT_ATTR_NAME));
// Increment number of times a node was picked.
cnts[weight - 1]++;
}
for (int i = 0; i < cnts.length - 1; i++) {
assert cnts[i] < cnts[i + 1] : "Invalid node counts for index [idx=" + i + ", cnts[i]=" + cnts[i] + ", cnts[i+1]=" + cnts[i + 1] + ']';
}
info("Node counts: " + Arrays.toString(cnts));
}
use of org.apache.ignite.GridTestJob in project ignite by apache.
the class GridRoundRobinLoadBalancingSpiMultipleNodesSelfTest method testMultipleNodes.
/**
* @throws Exception If test failed.
*/
@SuppressWarnings({ "ObjectEquality" })
public void testMultipleNodes() throws Exception {
List<ClusterNode> allNodes = (List<ClusterNode>) getSpiContext().nodes();
ComputeTaskSession ses = new GridTestTaskSession(IgniteUuid.randomUuid());
// Initialize.
getSpi().getBalancedNode(ses, allNodes, new GridTestJob());
List<UUID> orderedNodes = new ArrayList<>(getSpi().getNodeIds(ses));
// Check the round-robin actually did circle.
for (int i = 0; i < allNodes.size(); i++) {
ClusterNode node = getSpi().getBalancedNode(ses, allNodes, new GridTestJob());
assert orderedNodes.get(i) == node.id();
}
// Double-check.
for (int i = 0; i < allNodes.size(); i++) {
ClusterNode node = getSpi().getBalancedNode(ses, allNodes, new GridTestJob());
assert orderedNodes.get(i) == node.id();
}
}
use of org.apache.ignite.GridTestJob in project ignite by apache.
the class GridWeightedRandomLoadBalancingSpiSelfTest method testMultipleNodes.
/**
* @throws Exception If failed.
*/
public void testMultipleNodes() throws Exception {
List<ClusterNode> nodes = new ArrayList<>();
for (int i = 0; i < 10; i++) nodes.add(new GridTestNode(UUID.randomUUID()));
// Seal it.
nodes = Collections.unmodifiableList(nodes);
ClusterNode node = getSpi().getBalancedNode(new GridTestTaskSession(), nodes, new GridTestJob());
assert node != null;
assert nodes.contains(node);
}
use of org.apache.ignite.GridTestJob in project ignite by apache.
the class GridRoundRobinLoadBalancingNotPerTaskMultithreadedSelfTest method testMultipleTaskSessionsMultithreaded.
/**
*
* @throws Exception If failed.
*/
public void testMultipleTaskSessionsMultithreaded() throws Exception {
final RoundRobinLoadBalancingSpi spi = getSpi();
final List<ClusterNode> allNodes = (List<ClusterNode>) getSpiContext().nodes();
GridTestUtils.runMultiThreaded(new Callable<Object>() {
@Override
public Object call() throws Exception {
ComputeTaskSession ses = new GridTestTaskSession(IgniteUuid.randomUuid());
Map<UUID, AtomicInteger> nodeCnts = new HashMap<>();
for (int i = 1; i <= ITER_CNT; i++) {
ClusterNode node = spi.getBalancedNode(ses, allNodes, new GridTestJob());
if (!nodeCnts.containsKey(node.id()))
nodeCnts.put(node.id(), new AtomicInteger(1));
else
nodeCnts.get(node.id()).incrementAndGet();
}
int predictCnt = ITER_CNT / allNodes.size();
// Consider +-20% is permissible spread for single node measure.
int floor = (int) (predictCnt * 0.8);
double avgSpread = 0;
for (ClusterNode n : allNodes) {
int curCnt = nodeCnts.get(n.id()).intValue();
avgSpread += Math.abs(predictCnt - curCnt);
String msg = "Node stats [id=" + n.id() + ", cnt=" + curCnt + ", floor=" + floor + ", predictCnt=" + predictCnt + ']';
info(msg);
assertTrue(msg, curCnt >= floor);
}
avgSpread /= allNodes.size();
avgSpread = 100.0 * avgSpread / predictCnt;
info("Average spread for " + allNodes.size() + " nodes is " + avgSpread + " percents");
// Consider +-10% is permissible average spread for all nodes.
assertTrue("Average spread is too big: " + avgSpread, avgSpread <= 10);
return null;
}
}, THREAD_CNT, "balancer-test-worker");
}
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