Package org.infinispan.topology

Examples of org.infinispan.topology.LocalTopologyManager$StatusResponse


                return -1; // Server not reachable so send -1 for offline
            case mc17:
                try {
                    ServerListPing17 ping17 = new ServerListPing17();
                    ping17.setAddress(inetSocketAddress);
                    StatusResponse response = ping17.fetchData();
                    return response.getPlayers().getOnline();
                } catch (Exception ex) {
                }
                return -1; // Server not reachable so send -1 for offline
            case mc18b:
                try {
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      doTest(Operation.REMOVE_EXACT);
   }

   private void doTest(final Operation op) throws Exception {
      CheckPoint checkPoint = new CheckPoint();
      LocalTopologyManager ltm0 = TestingUtil.extractGlobalComponent(manager(0), LocalTopologyManager.class);
      int preJoinTopologyId = ltm0.getCacheTopology(CACHE_NAME).getTopologyId();

      final AdvancedCache<Object, Object> cache0 = advancedCache(0);
      addBlockingLocalTopologyManager(manager(0), checkPoint, preJoinTopologyId);

      final AdvancedCache<Object, Object> cache1 = advancedCache(1);
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   }

   private void addBlockingLocalTopologyManager(final EmbeddedCacheManager manager, final CheckPoint checkPoint,
                                                final int currentTopologyId)
         throws InterruptedException {
      LocalTopologyManager component = TestingUtil.extractGlobalComponent(manager, LocalTopologyManager.class);
      LocalTopologyManager spyLtm = Mockito.spy(component);
      doAnswer(new Answer() {
         @Override
         public Object answer(InvocationOnMock invocation) throws Throwable {
            CacheTopology topology = (CacheTopology) invocation.getArguments()[1];
            // Ignore the first topology update on the joiner, which is with the topology before the join
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      doTest(true);
   }

   private void doTest(final boolean conditional) throws Exception {
      CheckPoint checkPoint = new CheckPoint();
      LocalTopologyManager ltm0 = TestingUtil.extractGlobalComponent(manager(0), LocalTopologyManager.class);
      int preJoinTopologyId = ltm0.getCacheTopology(CACHE_NAME).getTopologyId();

      final AdvancedCache<Object, Object> cache0 = advancedCache(0);
      addBlockingLocalTopologyManager(manager(0), checkPoint, preJoinTopologyId);

      final AdvancedCache<Object, Object> cache1 = advancedCache(1);
      addBlockingLocalTopologyManager(manager(1), checkPoint, preJoinTopologyId);

      // Add a new member and block the rebalance before the final topology is installed
      ConfigurationBuilder c = getConfigurationBuilder();
      c.clustering().stateTransfer().awaitInitialTransfer(false);
      addClusterEnabledCacheManager(c);
      addBlockingLocalTopologyManager(manager(2), checkPoint, preJoinTopologyId);

      log.tracef("Starting the cache on the joiner");
      final AdvancedCache<Object,Object> cache2 = advancedCache(2);
      int duringJoinTopologyId = preJoinTopologyId + 1;

      checkPoint.trigger("allow_topology_" + duringJoinTopologyId + "_on_" + address(0));
      checkPoint.trigger("allow_topology_" + duringJoinTopologyId + "_on_" + address(1));
      checkPoint.trigger("allow_topology_" + duringJoinTopologyId + "_on_" + address(2));

      // Wait for the write CH to contain the joiner everywhere
      eventually(new Condition() {
         @Override
         public boolean isSatisfied() throws Exception {
            return cache0.getRpcManager().getMembers().size() == 3 &&
                  cache1.getRpcManager().getMembers().size() == 3 &&
                  cache2.getRpcManager().getMembers().size() == 3;
         }
      });

      CacheTopology duringJoinTopology = ltm0.getCacheTopology(CACHE_NAME);
      assertEquals(duringJoinTopologyId, duringJoinTopology.getTopologyId());
      assertNotNull(duringJoinTopology.getPendingCH());
      final MagicKey key = getKeyForCache2(duringJoinTopology.getPendingCH());
      log.tracef("Rebalance started. Found key %s with current owners %s and pending owners %s", key,
            duringJoinTopology.getCurrentCH().locateOwners(key), duringJoinTopology.getPendingCH().locateOwners(key));

      // Every PutKeyValueCommand will be blocked before reaching the distribution interceptor on cache1
      CyclicBarrier beforeCache1Barrier = new CyclicBarrier(2);
      BlockingInterceptor blockingInterceptor1 = new BlockingInterceptor(beforeCache1Barrier,
            PutKeyValueCommand.class, false);
      cache1.addInterceptorBefore(blockingInterceptor1, NonTxConcurrentDistributionInterceptor.class);

      // Every PutKeyValueCommand will be blocked after returning to the distribution interceptor on cache2
      CyclicBarrier afterCache2Barrier = new CyclicBarrier(2);
      BlockingInterceptor blockingInterceptor2 = new BlockingInterceptor(afterCache2Barrier,
            PutKeyValueCommand.class, true);
      cache2.addInterceptorBefore(blockingInterceptor2, StateTransferInterceptor.class);

      // Put from cache0 with cache0 as primary owner, cache2 will become the primary owner for the retry
      Future<Object> future = fork(new Callable<Object>() {
         @Override
         public Object call() throws Exception {
            return conditional ? cache0.putIfAbsent(key, "v") : cache0.put(key, "v");
         }
      });

      // Wait for the command to be executed on cache2 and unblock it
      afterCache2Barrier.await(10, TimeUnit.SECONDS);
      afterCache2Barrier.await(10, TimeUnit.SECONDS);

      // Allow the topology update to proceed on all the caches
      int postJoinTopologyId = duringJoinTopologyId + 1;
      checkPoint.trigger("allow_topology_" + postJoinTopologyId + "_on_" + address(0));
      checkPoint.trigger("allow_topology_" + postJoinTopologyId + "_on_" + address(1));
      checkPoint.trigger("allow_topology_" + postJoinTopologyId + "_on_" + address(2));

      // Wait for the topology to change everywhere
      TestingUtil.waitForRehashToComplete(cache0, cache1, cache2);

      // Allow the put command to throw an OutdatedTopologyException on cache1
      log.tracef("Unblocking the put command on node " + address(1));
      beforeCache1Barrier.await(10, TimeUnit.SECONDS);
      beforeCache1Barrier.await(10, TimeUnit.SECONDS);

      // Allow the retry to proceed on cache1, if it's still a member.
      // (In my tests, the backup was always cache0.)
      CacheTopology postJoinTopology = ltm0.getCacheTopology(CACHE_NAME);
      if (postJoinTopology.getCurrentCH().locateOwners(key).contains(address(1))) {
         beforeCache1Barrier.await(10, TimeUnit.SECONDS);
         beforeCache1Barrier.await(10, TimeUnit.SECONDS);
      }
      // And allow the retry to finish successfully on cache2
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   }

   private void addBlockingLocalTopologyManager(final EmbeddedCacheManager manager, final CheckPoint checkPoint,
                                                final int currentTopologyId)
         throws InterruptedException {
      LocalTopologyManager component = TestingUtil.extractGlobalComponent(manager, LocalTopologyManager.class);
      LocalTopologyManager spyLtm = Mockito.spy(component);
      doAnswer(new Answer() {
         @Override
         public Object answer(InvocationOnMock invocation) throws Throwable {
            CacheTopology topology = (CacheTopology) invocation.getArguments()[1];
            // Ignore the first topology update on the joiner, which is with the topology before the join
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      if (command instanceof CacheTopologyControlCommand) {
         CacheTopologyControlCommand controlCommand = (CacheTopologyControlCommand) command;
         switch (controlCommand.getType()) {
            case REBALANCE_START:
            case CH_UPDATE:
               LocalTopologyManager topologyManager = gcr.getComponent(LocalTopologyManager.class);
               isTotalOrder = topologyManager != null && topologyManager.isTotalOrderCache(controlCommand.getCacheName());
               break;
         }
      }
      return isTotalOrder;
   }
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   private void doTest(final boolean conditional) throws Exception {
      final String key = "testkey";

      CheckPoint checkPoint = new CheckPoint();
      LocalTopologyManager ltm0 = TestingUtil.extractGlobalComponent(manager(0), LocalTopologyManager.class);
      int preJoinTopologyId = ltm0.getCacheTopology(CACHE_NAME).getTopologyId();

      final AdvancedCache<Object, Object> cache0 = advancedCache(0);
      addBlockingLocalTopologyManager(manager(0), checkPoint, preJoinTopologyId);

      final AdvancedCache<Object, Object> cache1 = advancedCache(1);
      addBlockingLocalTopologyManager(manager(1), checkPoint, preJoinTopologyId);

      // Add a new member and block the rebalance before the final topology is installed
      ConfigurationBuilder c = getConfigurationBuilder();
      c.clustering().stateTransfer().awaitInitialTransfer(false);
      addClusterEnabledCacheManager(c);
      addBlockingLocalTopologyManager(manager(2), checkPoint, preJoinTopologyId);

      log.tracef("Starting the cache on the joiner");
      final AdvancedCache<Object,Object> cache2 = advancedCache(2);
      int duringJoinTopologyId = preJoinTopologyId + 1;

      checkPoint.trigger("allow_topology_" + duringJoinTopologyId + "_on_" + address(0));
      checkPoint.trigger("allow_topology_" + duringJoinTopologyId + "_on_" + address(1));
      checkPoint.trigger("allow_topology_" + duringJoinTopologyId + "_on_" + address(2));

      // Wait for the write CH to contain the joiner everywhere
      eventually(new Condition() {
         @Override
         public boolean isSatisfied() throws Exception {
            return cache0.getRpcManager().getMembers().size() == 3 &&
                  cache1.getRpcManager().getMembers().size() == 3 &&
                  cache2.getRpcManager().getMembers().size() == 3;
         }
      });

      CacheTopology duringJoinTopology = ltm0.getCacheTopology(CACHE_NAME);
      assertEquals(duringJoinTopologyId, duringJoinTopology.getTopologyId());
      assertNotNull(duringJoinTopology.getPendingCH());
      log.tracef("Rebalance started. Found key %s with current owners %s and pending owners %s", key,
            duringJoinTopology.getCurrentCH().locateOwners(key), duringJoinTopology.getPendingCH().locateOwners(key));

      // Every PutKeyValueCommand will be blocked before reaching the distribution interceptor on cache1
      CyclicBarrier beforeCache1Barrier = new CyclicBarrier(2);
      BlockingInterceptor blockingInterceptor1 = new BlockingInterceptor(beforeCache1Barrier,
            PutKeyValueCommand.class, false);
      cache1.addInterceptorBefore(blockingInterceptor1, NonTxDistributionInterceptor.class);

      // Every PutKeyValueCommand will be blocked after returning to the distribution interceptor on cache2
      CyclicBarrier afterCache2Barrier = new CyclicBarrier(2);
      BlockingInterceptor blockingInterceptor2 = new BlockingInterceptor(afterCache2Barrier,
            PutKeyValueCommand.class, true);
      cache2.addInterceptorBefore(blockingInterceptor2, StateTransferInterceptor.class);

      // Put from cache0 with cache0 as primary owner, cache2 will become the primary owner for the retry
      Future<Object> future = fork(new Callable<Object>() {
         @Override
         public Object call() throws Exception {
            return conditional ? cache0.putIfAbsent(key, "v") : cache0.put(key, "v");
         }
      });

      // Wait for the command to be executed on cache2 and unblock it
      afterCache2Barrier.await(10, TimeUnit.SECONDS);
      afterCache2Barrier.await(10, TimeUnit.SECONDS);

      // Allow the topology update to proceed on all the caches
      int postJoinTopologyId = duringJoinTopologyId + 1;
      checkPoint.trigger("allow_topology_" + postJoinTopologyId + "_on_" + address(0));
      checkPoint.trigger("allow_topology_" + postJoinTopologyId + "_on_" + address(1));
      checkPoint.trigger("allow_topology_" + postJoinTopologyId + "_on_" + address(2));

      // Wait for the topology to change everywhere
      TestingUtil.waitForRehashToComplete(cache0, cache1, cache2);

      // Allow the put command to throw an OutdatedTopologyException on cache1
      log.tracef("Unblocking the put command on node " + address(1));
      beforeCache1Barrier.await(10, TimeUnit.SECONDS);
      beforeCache1Barrier.await(10, TimeUnit.SECONDS);

      // Allow the retry to proceed on cache1, if it's still a member.
      // (In my tests, the backup was always cache0.)
      CacheTopology postJoinTopology = ltm0.getCacheTopology(CACHE_NAME);
      if (postJoinTopology.getCurrentCH().locateOwners(key).contains(address(1))) {
         beforeCache1Barrier.await(10, TimeUnit.SECONDS);
         beforeCache1Barrier.await(10, TimeUnit.SECONDS);
      }
      // And allow the retry to finish successfully on cache2
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   }

   private void addBlockingLocalTopologyManager(final EmbeddedCacheManager manager, final CheckPoint checkPoint,
                                                final int currentTopologyId)
         throws InterruptedException {
      LocalTopologyManager component = TestingUtil.extractGlobalComponent(manager, LocalTopologyManager.class);
      LocalTopologyManager spyLtm = Mockito.spy(component);
      doAnswer(new Answer() {
         @Override
         public Object answer(InvocationOnMock invocation) throws Throwable {
            CacheTopology topology = (CacheTopology) invocation.getArguments()[1];
            // Ignore the first topology update on the joiner, which is with the topology before the join
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      if (mergeCoordIndex == 0) d1.setDiscardAll(false);
      if (mergeCoordIndex == 1) d2.setDiscardAll(false);
      if (mergeCoordIndex == 2) d3.setDiscardAll(false);

      int viewIdAfterSplit = mergeCoordManager.getTransport().getViewId();
      final LocalTopologyManager localTopologyManager = TestingUtil.extractGlobalComponent(mergeCoordManager,
            LocalTopologyManager.class);
      final CheckPoint checkpoint = new CheckPoint();
      LocalTopologyManager spyLocalTopologyManager = spy(localTopologyManager);
      doAnswer(new Answer<Object>() {
         @Override
         public Object answer(InvocationOnMock invocation) throws Throwable {
            int viewId = (Integer) invocation.getArguments()[2];
            checkpoint.trigger("rebalance" + viewId);
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      if (mergeCoordIndex == 0) d1.setDiscardAll(false);
      if (mergeCoordIndex == 1) d2.setDiscardAll(false);
      if (mergeCoordIndex == 2) d3.setDiscardAll(false);

      int viewIdAfterSplit = mergeCoordManager.getTransport().getViewId();
      final LocalTopologyManager localTopologyManager = TestingUtil.extractGlobalComponent(mergeCoordManager,
            LocalTopologyManager.class);
      final CheckPoint checkpoint = new CheckPoint();
      LocalTopologyManager spyLocalTopologyManager = spy(localTopologyManager);
      doAnswer(new Answer<Object>() {
         @Override
         public Object answer(InvocationOnMock invocation) throws Throwable {
            int viewId = (Integer) invocation.getArguments()[2];
            checkpoint.trigger("rebalance_" + viewId);
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