Examples of MagicKey

org.infinispan.distribution.MagicKey
A special type of key that if passed a cache in its constructor, will ensure it will always be assigned to that cache (plus however many additional caches in the hash space). Note that this only works if all the caches have joined a single cluster before creating the key. If the cluster membership changes then the keys may move to other servers.

Examples of org.infinispan.distribution.MagicKey

      cache0.getComponentRegistry().registerComponent(crm, RpcManager.class);
      cache0.getComponentRegistry().rewire();
      crm.blockBefore(PutKeyValueCommand.class);


      // Try to put a key/value from cache0 with cache1 the primary owner
      final MagicKey key = new MagicKey(cache1);
      Future<Object> future = fork(new Callable<Object>() {
         @Override
         public Object call() throws Exception {
            return conditional ? cache0.putIfAbsent(key, "v") : cache0.put(key, "v");
         }

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Examples of org.infinispan.distribution.MagicKey

      BlockingInterceptor blockingInterceptor2 = new BlockingInterceptor(beforeCache2Barrier,
      op.getCommandClass(), true);
      cache2.addInterceptorBefore(blockingInterceptor2, NonTxConcurrentDistributionInterceptor.class);




      final MagicKey key = getKeyForCache2();


      // Prepare for replace: put a previous value in cache0 and cache1
      if (op.getPreviousValue() != null) {
         cache0.withFlags(Flag.CACHE_MODE_LOCAL).put(key, op.getPreviousValue());
         cache1.withFlags(Flag.CACHE_MODE_LOCAL).put(key, op.getPreviousValue());

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Examples of org.infinispan.distribution.MagicKey

      assertEquals(op.getValue(), cache2.get(key));


   }


   private MagicKey getKeyForCache2() {
      return new MagicKey(cache(0), cache(1), cache(2));
   }

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Examples of org.infinispan.distribution.MagicKey

      BlockingInterceptor blockingInterceptor = new BlockingInterceptor(distInterceptorBarrier, PutKeyValueCommand.class, false);
      cache0.addInterceptorBefore(blockingInterceptor, NonTxConcurrentDistributionInterceptor.class);


      for (int i = 0; i < NUM_KEYS; i++) {
         // Try to put a key/value from cache0 with cache1 the primary owner
         final MagicKey key = new MagicKey("key" + i, cache1);
         Future<Object> future = fork(new Callable<Object>() {
            @Override
            public Object call() throws Exception {
               return conditional ? cache0.putIfAbsent(key, "v") : cache0.put(key, "v");
            }

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Examples of org.infinispan.distribution.MagicKey

      });


      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);

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Examples of org.infinispan.distribution.MagicKey

      assertEquals("v", cache2.get(key));
   }


   private MagicKey getKeyForCache2(ConsistentHash pendingCH) {
      int attemptsLeft = 1000;
      MagicKey key;
      do {
         key = new MagicKey("key", cache(0));
         attemptsLeft--;
      } while (!pendingCH.locatePrimaryOwner(key).equals(address(2)) && attemptsLeft > 0);


      if (attemptsLeft <= 0) {
         throw new IllegalStateException("Can't find a key that will map to " + address(2) + " after rebalance!");

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Examples of org.infinispan.distribution.MagicKey

      DummyInMemoryCacheStore cs = (DummyInMemoryCacheStore) getCacheStore(cache);
      return cs.stats().get(cacheStoreMethod);
   }


   public void testRehashes() throws CacheLoaderException {
      MagicKey k = new MagicKey("k", c1);


      c1.put(k, "v");


      Cache<Object, String>[] owners = getOwners(k);
      log.infof("Initial owners list for key %s: %s", k, Arrays.asList(owners));

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Examples of org.infinispan.distribution.MagicKey

      createCluster(builder, 4);
      waitForClusterToForm();
   }


   public void testOldStateResponse() throws Throwable {
      MagicKey k1 = new MagicKey("k1", cache(1));
      MagicKey k2 = new MagicKey("k2", cache(2));
      MagicKey k3 = new MagicKey("k3", cache(3));
      cache(1).put(k1, "v1");
      cache(2).put(k2, "v2");
      cache(3).put(k3, "v3");


      final StateTransferManager stm = cache(0).getAdvancedCache().getComponentRegistry().getStateTransferManager();

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Examples of org.infinispan.distribution.MagicKey

      assertTrue(dataContainer.containsKey(k2));
      assertTrue(dataContainer.containsKey(k3));
   }


   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();

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Examples of org.infinispan.distribution.MagicKey

 */
@Test(groups = "functional", testName = "atomic.ReplWriteSkewAtomicMapAPITest")
public class ReplWriteSkewAtomicMapAPITest extends RepeatableReadAtomicMapAPITest {


   public void testWriteSkewOnPrimaryOwner() throws Exception {
      doWriteSkewTest(cache(0, "atomic"), new MagicKey(cache(0, "atomic"), cache(1, "atomic")), caches("atomic"));
   }

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