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* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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* KIND, either express or implied. See the License for the
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package org.apache.brooklyn.core.mgmt.ha;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNull;
import java.util.List;
import org.apache.brooklyn.api.mgmt.ha.ManagementNodeState;
import org.apache.brooklyn.api.mgmt.ha.ManagementNodeSyncRecord;
import org.apache.brooklyn.core.BrooklynVersion;
import org.apache.brooklyn.core.entity.EntityFunctions;
import org.apache.brooklyn.core.mgmt.ha.BasicMasterChooser.AlphabeticMasterChooser;
import org.apache.brooklyn.core.mgmt.ha.BasicMasterChooser.ScoredRecord;
import org.apache.brooklyn.core.mgmt.ha.dto.BasicManagementNodeSyncRecord;
import org.apache.brooklyn.util.time.Duration;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
public class MasterChooserTest {
private MutableManagementPlaneSyncRecord memento;
private AlphabeticMasterChooser chooser;
private long now;
@BeforeMethod(alwaysRun=true)
public void setUp() throws Exception {
memento = new MutableManagementPlaneSyncRecord();
chooser = new AlphabeticMasterChooser();
now = System.currentTimeMillis();
}
@Test
public void testChoosesFirstAlphanumeric() throws Exception {
memento.addNode(newManagerMemento("node1", ManagementNodeState.STANDBY, now));
memento.addNode(newManagerMemento("node2", ManagementNodeState.STANDBY, now));
memento.addNode(newManagerMemento("node3", ManagementNodeState.STANDBY, now));
Duration heartbeatTimeout = Duration.THIRTY_SECONDS;
String ownNodeId = "node2";
assertEquals(chooser.choose(memento, heartbeatTimeout, ownNodeId).getNodeId(), "node1");
}
@Test
public void testReturnsNullIfNoValid() throws Exception {
memento.addNode(newManagerMemento("node1", ManagementNodeState.STANDBY, now - 31*1000));
Duration heartbeatTimeout = Duration.THIRTY_SECONDS;
assertNull(chooser.choose(memento, heartbeatTimeout, "node2"));
}
@Test
public void testFiltersOutByHeartbeat() throws Exception {
memento.addNode(newManagerMemento("node1", ManagementNodeState.STANDBY, now - 31*1000));
memento.addNode(newManagerMemento("node2", ManagementNodeState.STANDBY, now - 20*1000));
memento.addNode(newManagerMemento("node3", ManagementNodeState.STANDBY, now));
Duration heartbeatTimeout = Duration.THIRTY_SECONDS;
assertEquals(getIds(chooser.sort(chooser.filterHealthy(memento, heartbeatTimeout, now))), ImmutableList.of("node2", "node3"));
}
protected static List<String> getIds(List<ScoredRecord<?>> filterHealthy) {
return ImmutableList.copyOf(Iterables.transform(filterHealthy, EntityFunctions.id()));
}
@Test
public void testFiltersOutByStatusNotPreferringMaster() throws Exception {
assertEquals(doTestFiltersOutByStatus(false, false), ImmutableList.of("node4", "node5"));
}
@Test
public void testFiltersOutByStatusPreferringMaster() throws Exception {
assertEquals(doTestFiltersOutByStatus(true, false), ImmutableList.of("node5", "node4"));
}
@Test
public void testFiltersOutByStatusNotPreferringHot() throws Exception {
assertEquals(doTestFiltersOutByStatus(false, true), ImmutableList.of("node4", "node5", "node6"));
}
@Test
public void testFiltersOutByStatusPreferringHot() throws Exception {
assertEquals(doTestFiltersOutByStatus(true, true), ImmutableList.of("node5", "node6", "node4"));
}
protected List<String> doTestFiltersOutByStatus(boolean preferHot, boolean includeHot) throws Exception {
chooser = new AlphabeticMasterChooser(preferHot);
memento.addNode(newManagerMemento("node1", ManagementNodeState.FAILED, now));
memento.addNode(newManagerMemento("node2", ManagementNodeState.TERMINATED, now));
memento.addNode(newManagerMemento("node3", null, now));
memento.addNode(newManagerMemento("node4", ManagementNodeState.STANDBY, now));
memento.addNode(newManagerMemento("node5", ManagementNodeState.MASTER, now));
if (includeHot)
memento.addNode(newManagerMemento("node6", ManagementNodeState.HOT_STANDBY, now));
return getIds(chooser.sort(chooser.filterHealthy(memento, Duration.THIRTY_SECONDS, now)));
}
@Test
public void testExplicityPriority() throws Exception {
chooser = new AlphabeticMasterChooser();
memento.addNode(newManagerMemento("node1", ManagementNodeState.STANDBY, now, BrooklynVersion.get(), 2L));
memento.addNode(newManagerMemento("node2", ManagementNodeState.STANDBY, now, BrooklynVersion.get(), -1L));
memento.addNode(newManagerMemento("node3", ManagementNodeState.STANDBY, now, BrooklynVersion.get(), null));
List<String> order = getIds(chooser.sort(chooser.filterHealthy(memento, Duration.THIRTY_SECONDS, now)));
assertEquals(order, ImmutableList.of("node1", "node3", "node2"));
}
@Test
public void testVersionsMaybeNull() throws Exception {
chooser = new AlphabeticMasterChooser();
memento.addNode(newManagerMemento("node1", ManagementNodeState.STANDBY, now, "v10", null));
memento.addNode(newManagerMemento("node2", ManagementNodeState.STANDBY, now, "v3-snapshot", null));
memento.addNode(newManagerMemento("node3", ManagementNodeState.STANDBY, now, "v3-snapshot", -1L));
memento.addNode(newManagerMemento("node4", ManagementNodeState.STANDBY, now, "v3-snapshot", null));
memento.addNode(newManagerMemento("node5", ManagementNodeState.STANDBY, now, "v3-stable", null));
memento.addNode(newManagerMemento("node6", ManagementNodeState.STANDBY, now, "v1", null));
memento.addNode(newManagerMemento("node7", ManagementNodeState.STANDBY, now, null, null));
List<String> order = getIds(chooser.sort(chooser.filterHealthy(memento, Duration.THIRTY_SECONDS, now)));
assertEquals(order, ImmutableList.of("node1", "node5", "node6", "node2", "node4", "node7", "node3"));
}
private ManagementNodeSyncRecord newManagerMemento(String nodeId, ManagementNodeState status, long timestamp) {
return newManagerMemento(nodeId, status, timestamp, BrooklynVersion.get(), null);
}
private ManagementNodeSyncRecord newManagerMemento(String nodeId, ManagementNodeState status, long timestamp,
String version, Long priority) {
return BasicManagementNodeSyncRecord.builder().brooklynVersion(version).nodeId(nodeId).status(status).localTimestamp(timestamp).remoteTimestamp(timestamp).
priority(priority).build();
}
}