Examples with CacheManagerNotifierImpl org.infinispan.notifications.cachemanagerlistener.CacheManagerNotifierImpl used on opensource projects

Example 1 with CacheManagerNotifierImpl

use of org.infinispan.notifications.cachemanagerlistener.CacheManagerNotifierImpl in project infinispan by infinispan.

the class ClusterTopologyManagerImplTest method testClusterStartupWith2Nodes.

/**
 * Start two nodes and make both join the cache.
 */
public void testClusterStartupWith2Nodes() throws Exception {
    // Create global component registry with dependencies
    GlobalConfiguration gc = GlobalConfigurationBuilder.defaultClusteredBuilder().build();
    EmbeddedCacheManager cacheManager = mock(EmbeddedCacheManager.class);
    GlobalComponentRegistry gcr = new GlobalComponentRegistry(gc, cacheManager, Collections.emptySet(), TestModuleRepository.defaultModuleRepository(), mock(ConfigurationManager.class));
    BasicComponentRegistry gbcr = gcr.getComponent(BasicComponentRegistry.class);
    CacheManagerNotifierImpl managerNotifier = new CacheManagerNotifierImpl();
    gbcr.replaceComponent(CacheManagerNotifier.class.getName(), managerNotifier, false);
    managerNotifier.start();
    MockTransport transport = new MockTransport(A);
    gbcr.replaceComponent(Transport.class.getName(), transport, false);
    PersistentUUIDManager persistentUUIDManager = new PersistentUUIDManagerImpl();
    gbcr.replaceComponent(PersistentUUIDManager.class.getName(), persistentUUIDManager, false);
    gbcr.replaceComponent(KnownComponentNames.NON_BLOCKING_EXECUTOR, executor, false);
    gbcr.replaceComponent(KnownComponentNames.TIMEOUT_SCHEDULE_EXECUTOR, scheduledExecutor, false);
    MockLocalTopologyManager ltm = new MockLocalTopologyManager(CACHE_NAME);
    gbcr.replaceComponent(LocalTopologyManager.class.getName(), ltm, false);
    // Initial conditions
    transport.init(1, singletonList(A));
    ltm.init(null, null, null, null);
    // Component under test: ClusterTopologyManagerImpl on the coordinator (A)
    ClusterTopologyManagerImpl ctm = new ClusterTopologyManagerImpl();
    gbcr.replaceComponent(ClusterTopologyManager.class.getName(), ctm, false);
    gcr.rewire();
    ctm.start();
    // CTMI becomes coordinator and fetches the cluster status
    transport.expectCommand(CacheStatusRequestCommand.class).finish();
    // No caches, so no topology update is expected here
    Thread.sleep(1);
    transport.verifyNoErrors();
    // First node joins the cache
    CacheStatusResponse joinResponseA = CompletionStages.join(ctm.handleJoin(CACHE_NAME, A, joinInfoA, 1));
    assertEquals(1, joinResponseA.getCacheTopology().getTopologyId());
    assertCHMembers(joinResponseA.getCacheTopology().getCurrentCH(), A);
    assertNull(joinResponseA.getCacheTopology().getPendingCH());
    // LTMI normally updates the topology when receiving the join response
    ltm.handleTopologyUpdate(CACHE_NAME, joinResponseA.getCacheTopology(), joinResponseA.getAvailabilityMode(), 1, A);
    ltm.expectTopology(1, singletonList(A), null, CacheTopology.Phase.NO_REBALANCE);
    // CTMI replies to the initial stable topology broadcast
    transport.expectCommand(TopologyUpdateStableCommand.class, c -> {
        assertCHMembers(c.getCurrentCH(), A);
        assertNull(c.getPendingCH());
    }).finish();
    // Add a second node
    transport.updateView(2, asList(A, B));
    managerNotifier.notifyViewChange(asList(A, B), singletonList(A), A, 2);
    // CTMI confirms availability
    transport.expectHeartBeatCommand().finish();
    // Second node tries to join with old view and is rejected
    CacheStatusResponse joinResponseB1 = CompletionStages.join(ctm.handleJoin(CACHE_NAME, B, joinInfoB, 1));
    assertNull(joinResponseB1);
    // Second node joins the cache with correct view id, receives the initial topology
    CacheStatusResponse joinResponseB = CompletionStages.join(ctm.handleJoin(CACHE_NAME, B, joinInfoB, 2));
    assertEquals(1, joinResponseB.getCacheTopology().getTopologyId());
    assertCHMembers(joinResponseB.getCacheTopology().getCurrentCH(), A);
    assertNull(joinResponseB.getCacheTopology().getPendingCH());
    verifyRebalance(transport, ltm, ctm, 2, 1, singletonList(A), asList(A, B));
    transport.verifyNoErrors();
    gcr.stop();
}

Example 2 with CacheManagerNotifierImpl

use of org.infinispan.notifications.cachemanagerlistener.CacheManagerNotifierImpl in project infinispan by infinispan.

the class ClusterTopologyManagerImplTest method testCoordinatorLostDuringRebalance.

/**
 * Assume there are already 2 nodes and the coordinator leaves during rebalance
 */
public void testCoordinatorLostDuringRebalance() throws Exception {
    // Create global component registry with dependencies
    GlobalConfiguration gc = GlobalConfigurationBuilder.defaultClusteredBuilder().build();
    EmbeddedCacheManager cacheManager = mock(EmbeddedCacheManager.class);
    GlobalComponentRegistry gcr = new GlobalComponentRegistry(gc, cacheManager, Collections.emptySet(), TestModuleRepository.defaultModuleRepository(), mock(ConfigurationManager.class));
    BasicComponentRegistry gbcr = gcr.getComponent(BasicComponentRegistry.class);
    CacheManagerNotifierImpl managerNotifier = new CacheManagerNotifierImpl();
    gbcr.replaceComponent(CacheManagerNotifier.class.getName(), managerNotifier, false);
    managerNotifier.start();
    MockTransport transport = new MockTransport(B);
    gbcr.replaceComponent(Transport.class.getName(), transport, false);
    PersistentUUIDManager persistentUUIDManager = new PersistentUUIDManagerImpl();
    gbcr.replaceComponent(PersistentUUIDManager.class.getName(), persistentUUIDManager, false);
    gbcr.replaceComponent(KnownComponentNames.NON_BLOCKING_EXECUTOR, executor, false);
    gbcr.replaceComponent(KnownComponentNames.TIMEOUT_SCHEDULE_EXECUTOR, scheduledExecutor, false);
    MockLocalTopologyManager ltm = new MockLocalTopologyManager(CACHE_NAME);
    gbcr.replaceComponent(LocalTopologyManager.class.getName(), ltm, false);
    // Initial conditions (rebalance in phase 3, READ_NEW_WRITE_ALL)
    transport.init(2, asList(A, B));
    ConsistentHash stableCH = replicatedChf.create(joinInfoA.getNumOwners(), joinInfoA.getNumSegments(), singletonList(A), null);
    ConsistentHash pendingCH = replicatedChf.create(joinInfoA.getNumOwners(), joinInfoA.getNumSegments(), asList(A, B), null);
    CacheTopology initialTopology = new CacheTopology(4, 2, stableCH, pendingCH, CacheTopology.Phase.READ_NEW_WRITE_ALL, asList(A, B), asList(joinInfoA.getPersistentUUID(), joinInfoB.getPersistentUUID()));
    CacheTopology stableTopology = new CacheTopology(1, 1, stableCH, null, CacheTopology.Phase.NO_REBALANCE, singletonList(A), singletonList(joinInfoA.getPersistentUUID()));
    ltm.init(joinInfoA, initialTopology, stableTopology, AvailabilityMode.AVAILABLE);
    // Normally LocalTopologyManagerImpl.start()/doHandleTopologyUpdate() registers the persistent UUIDs
    // TODO Write test with asymmetric caches leaving the PersistentUUIDManager cache incomplete
    persistentUUIDManager.addPersistentAddressMapping(A, joinInfoA.getPersistentUUID());
    persistentUUIDManager.addPersistentAddressMapping(B, joinInfoB.getPersistentUUID());
    // Component under test: ClusterTopologyManagerImpl on the new coordinator (B)
    ClusterTopologyManagerImpl ctm = new ClusterTopologyManagerImpl();
    gbcr.replaceComponent(ClusterTopologyManager.class.getName(), ctm, false);
    gcr.rewire();
    // When CTMI starts as regular member it requests the rebalancing status from the coordinator
    runConcurrently(ctm::start, () -> transport.expectCommand(RebalanceStatusRequestCommand.class).singleResponse(A, SuccessfulResponse.create(true)));
    // Wait for the initial view update in CTMI to finish
    eventuallyEquals(ClusterTopologyManager.ClusterManagerStatus.REGULAR_MEMBER, ctm::getStatus);
    // The coordinator (node A) leaves the cluster
    transport.updateView(3, singletonList(B));
    managerNotifier.notifyViewChange(singletonList(B), asList(A, B), B, 3);
    // Node B becomes coordinator and CTMI tries to recover the cluster status
    transport.expectCommand(CacheStatusRequestCommand.class).finish();
    // CTMI gets a single cache topology with READ_NEW and broadcasts a new topology with only the read CH
    ltm.expectTopology(5, asList(A, B), null, CacheTopology.Phase.NO_REBALANCE);
    transport.expectCommand(TopologyUpdateCommand.class, c -> {
        assertEquals(5, c.getTopologyId());
        assertCHMembers(c.getCurrentCH(), A, B);
        assertNull(c.getPendingCH());
    });
    transport.expectCommand(TopologyUpdateStableCommand.class, c -> {
        assertEquals(1, c.getTopologyId());
        assertCHMembers(c.getCurrentCH(), A);
        assertNull(c.getPendingCH());
    });
    // CTMI broadcasts a new cache topology with only node B
    ltm.expectTopology(6, singletonList(B), null, CacheTopology.Phase.NO_REBALANCE);
    transport.expectCommand(TopologyUpdateCommand.class, c -> {
        assertEquals(6, c.getTopologyId());
        assertCHMembers(c.getCurrentCH(), B);
        assertNull(c.getPendingCH());
    });
    // The new topology doesn't need rebalancing, so CTMI updates the stable topology
    transport.expectCommand(TopologyUpdateStableCommand.class, c -> {
        assertEquals(6, c.getTopologyId());
        assertCHMembers(c.getCurrentCH(), B);
        assertNull(c.getPendingCH());
    });
    // Shouldn't send any more commands here
    Thread.sleep(1);
    transport.verifyNoErrors();
    // Node A restarts
    transport.updateView(4, asList(B, A));
    managerNotifier.notifyViewChange(asList(B, A), singletonList(B), A, 4);
    // CTMI confirms members are available in case it needs to starts a rebalance
    transport.expectHeartBeatCommand().finish();
    // Node A rejoins
    ctm.handleJoin(CACHE_NAME, A, joinInfoA, 4);
    verifyRebalance(transport, ltm, ctm, 7, 4, singletonList(B), asList(B, A));
    transport.verifyNoErrors();
    gcr.stop();
}