/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* 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
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.brooklyn.core.mgmt.ha;
import static org.testng.Assert.assertEquals;
import java.util.Date;
import java.util.List;
import java.util.Map;
import org.apache.brooklyn.api.location.Location;
import org.apache.brooklyn.api.mgmt.ha.HighAvailabilityMode;
import org.apache.brooklyn.api.mgmt.ha.ManagementNodeState;
import org.apache.brooklyn.api.mgmt.ha.ManagementPlaneSyncRecordPersister;
import org.apache.brooklyn.core.entity.Entities;
import org.apache.brooklyn.core.mgmt.ha.HighAvailabilityManagerImpl;
import org.apache.brooklyn.core.mgmt.ha.ManagementPlaneSyncRecordPersisterToObjectStore;
import org.apache.brooklyn.core.mgmt.internal.ManagementContextInternal;
import org.apache.brooklyn.core.mgmt.persist.BrooklynMementoPersisterToObjectStore;
import org.apache.brooklyn.core.mgmt.persist.InMemoryObjectStore;
import org.apache.brooklyn.core.mgmt.persist.ListeningObjectStore;
import org.apache.brooklyn.core.mgmt.persist.PersistMode;
import org.apache.brooklyn.core.mgmt.persist.PersistenceObjectStore;
import org.apache.brooklyn.core.mgmt.rebind.PersistenceExceptionHandlerImpl;
import org.apache.brooklyn.core.test.entity.LocalManagementContextForTests;
import org.apache.brooklyn.core.test.entity.TestApplication;
import org.apache.brooklyn.util.collections.MutableList;
import org.apache.brooklyn.util.collections.MutableMap;
import org.apache.brooklyn.util.time.Duration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
@Test
public class WarmStandbyTest {
private static final Logger log = LoggerFactory.getLogger(WarmStandbyTest.class);
private List<HaMgmtNode> nodes = new MutableList<WarmStandbyTest.HaMgmtNode>();
Map<String,String> sharedBackingStore = MutableMap.of();
Map<String,Date> sharedBackingStoreDates = MutableMap.of();
private ClassLoader classLoader = getClass().getClassLoader();
public class HaMgmtNode {
// TODO share with HotStandbyTest and SplitBrainTest and a few others (minor differences but worth it ultimately)
private ManagementContextInternal mgmt;
private String ownNodeId;
private String nodeName;
private ListeningObjectStore objectStore;
private ManagementPlaneSyncRecordPersister persister;
private HighAvailabilityManagerImpl ha;
@BeforeMethod(alwaysRun=true)
public void setUp() throws Exception {
nodeName = "node "+nodes.size();
mgmt = newLocalManagementContext();
ownNodeId = mgmt.getManagementNodeId();
objectStore = new ListeningObjectStore(newPersistenceObjectStore());
objectStore.injectManagementContext(mgmt);
objectStore.prepareForSharedUse(PersistMode.CLEAN, HighAvailabilityMode.DISABLED);
persister = new ManagementPlaneSyncRecordPersisterToObjectStore(mgmt, objectStore, classLoader);
((ManagementPlaneSyncRecordPersisterToObjectStore)persister).preferRemoteTimestampInMemento();
BrooklynMementoPersisterToObjectStore persisterObj = new BrooklynMementoPersisterToObjectStore(objectStore, mgmt.getBrooklynProperties(), classLoader);
mgmt.getRebindManager().setPersister(persisterObj, PersistenceExceptionHandlerImpl.builder().build());
ha = ((HighAvailabilityManagerImpl)mgmt.getHighAvailabilityManager())
.setPollPeriod(Duration.PRACTICALLY_FOREVER)
.setHeartbeatTimeout(Duration.THIRTY_SECONDS)
.setPersister(persister);
log.info("Created "+nodeName+" "+ownNodeId);
}
public void tearDown() throws Exception {
if (ha != null) ha.stop();
if (mgmt != null) Entities.destroyAll(mgmt);
if (objectStore != null) objectStore.deleteCompletely();
}
@Override
public String toString() {
return nodeName+" "+ownNodeId;
}
}
@BeforeMethod(alwaysRun=true)
public void setUp() throws Exception {
nodes.clear();
sharedBackingStore.clear();
}
public HaMgmtNode newNode() throws Exception {
HaMgmtNode node = new HaMgmtNode();
node.setUp();
nodes.add(node);
return node;
}
@AfterMethod(alwaysRun=true)
public void tearDown() throws Exception {
for (HaMgmtNode n: nodes)
n.tearDown();
}
protected ManagementContextInternal newLocalManagementContext() {
return new LocalManagementContextForTests();
}
protected PersistenceObjectStore newPersistenceObjectStore() {
return new InMemoryObjectStore(sharedBackingStore, sharedBackingStoreDates);
}
// TODO refactor above -- routines above this line are shared among HotStandbyTest and SplitBrainTest
@Test
public void testWarmStandby() throws Exception {
HaMgmtNode n1 = newNode();
n1.ha.start(HighAvailabilityMode.AUTO);
assertEquals(n1.ha.getNodeState(), ManagementNodeState.MASTER);
TestApplication app = TestApplication.Factory.newManagedInstanceForTests(n1.mgmt);
app.start(MutableList.<Location>of());
n1.mgmt.getRebindManager().forcePersistNow(false, null);
HaMgmtNode n2 = newNode();
n2.ha.start(HighAvailabilityMode.STANDBY);
assertEquals(n2.ha.getNodeState(), ManagementNodeState.STANDBY);
assertEquals(n2.mgmt.getApplications().size(), 0);
}
// TODO support forcible demotion, and check that a master forcibly demoted
// to warm standby clears its apps, policies, and locations
}