Examples of org.infinispan.statetransfer.StateTransferManager

org.infinispan.statetransfer.StateTransferManager
A component that manages the state transfer when the topology of the cluster changes. @author Dan Berindei @author Mircea Markus @author anistor@redhat.com @since 5.1


   public void testStateResponseWhileRestartingBrokenTransfers() throws Throwable {
      MagicKey k1 = new MagicKey("k1", cache(1), cache(2), cache(3));
      cache(0).put(k1, "v1");


      final StateTransferManager stm = cache(0).getAdvancedCache().getComponentRegistry().getStateTransferManager();
      final int initialTopologyId = stm.getCacheTopology().getTopologyId();


      final CheckPoint checkPoint = new CheckPoint();
      replaceInvocationHandler(checkPoint, manager(0), StateResponseCommand.class);
      replaceInvocationHandler(checkPoint, manager(1), StateRequestCommand.class);
      replaceInvocationHandler(checkPoint, manager(2), StateRequestCommand.class);


      log.debugf("Killing node %s", address(3));
      cache(3).stop();


      eventually(new Condition() {
         @Override
         public boolean isSatisfied() throws Exception {
            // Wait for the rebalance cache topology to be installed
            return stm.getCacheTopology().getTopologyId() == initialTopologyId + 2;
         }
      });


      // Allow cache 0 to request transactions from caches 1 and 2 (in any order)
      checkPoint.trigger("OUT_GET_TRANSACTIONS_" + address(1));

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         }
      }
   }


   private void handleWithWaitForBlocks(final CacheRpcCommand cmd, final ComponentRegistry cr, final org.jgroups.blocks.Response response, boolean preserveOrder) throws Throwable {
      StateTransferManager stm = cr.getStateTransferManager();
      // We must have completed the join before handling commands
      // (even if we didn't complete the initial state transfer)
      if (cmd instanceof TotalOrderPrepareCommand && !stm.ownsData()) {
         reply(response, null);
         return;
      }


      CommandsFactory commandsFactory = cr.getCommandsFactory();

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      final long giveup = System.nanoTime() + TimeUnit.SECONDS.toNanos(REHASH_TIMEOUT_SECONDS);
      for (Cache c : caches) {
         if (c instanceof SecureCacheImpl) {
            c = (Cache) extractField(SecureCacheImpl.class, c, "delegate");
         }
         StateTransferManager stateTransferManager = extractComponent(c, StateTransferManager.class);
         DefaultRebalancePolicy rebalancePolicy = (DefaultRebalancePolicy) TestingUtil.extractGlobalComponent(c.getCacheManager(), RebalancePolicy.class);
         Address cacheAddress = c.getAdvancedCache().getRpcManager().getAddress();
         while (true) {
            CacheTopology cacheTopology = stateTransferManager.getCacheTopology();
            boolean rebalanceInProgress = stateTransferManager.isStateTransferInProgress();
            boolean chIsBalanced = !rebalanceInProgress && rebalancePolicy.isBalanced(cacheTopology.getCurrentCH());
            boolean chContainsAllMembers = cacheTopology.getCurrentCH().getMembers().size() == caches.length;
            if (chIsBalanced && chContainsAllMembers)
               break;

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      getStateTransferManager(cacheName).applyState(i);
   }


   @Override
   public void generateState(String cacheName, OutputStream o) throws StateTransferException {
      StateTransferManager manager = getStateTransferManager(cacheName);
      if (manager == null) {
         ObjectOutput oo = null;
         try {
            oo = marshaller.startObjectOutput(o, false);
            // Not started yet, so send started flag false
            marshaller.objectToObjectStream(false, oo);
         } catch (Exception e) {
            throw new StateTransferException(e);
         } finally {
            marshaller.finishObjectOutput(oo);
         }
      } else {
         manager.generateState(o);
      }
   }

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   public JoinHandle howToHandle(CacheRpcCommand cmd) {
      Configuration localConfig = cmd.getConfiguration();
      ComponentRegistry cr = cmd.getComponentRegistry();


      if (localConfig.getCacheMode().isDistributed()) {
         StateTransferManager stm = cr.getComponent(StateTransferManager.class);
         if (stm.isJoinComplete())
            return JoinHandle.OK;
         else {
            // no point in enqueueing clustered GET commands - just ignore these and hope someone else in the cluster responds.
            if (!(cmd instanceof ClusteredGetCommand))
               return JoinHandle.QUEUE;

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org.infinispan.distribution.rehash.StateResponseOrderingTest

org.infinispan.interceptors.ReplicationInterceptorTest

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