コード例 #1
1
      /** Compares our trees, and triggers repairs for any ranges that mismatch. */
      public void run() {
        InetAddress local = FBUtilities.getLocalAddress();

        // restore partitioners (in case we were serialized)
        if (ltree.partitioner() == null) ltree.partitioner(StorageService.getPartitioner());
        if (rtree.partitioner() == null) rtree.partitioner(StorageService.getPartitioner());

        // compare trees, and collect differences
        differences.addAll(MerkleTree.difference(ltree, rtree));

        // choose a repair method based on the significance of the difference
        String format =
            "Endpoints " + local + " and " + remote + " %s for " + cfname + " on " + range;
        if (differences.isEmpty()) {
          logger.info(String.format(format, "are consistent"));
          completed(remote, cfname);
          return;
        }

        // non-0 difference: perform streaming repair
        logger.info(String.format(format, "have " + differences.size() + " range(s) out of sync"));
        try {
          performStreamingRepair();
        } catch (IOException e) {
          throw new RuntimeException(e);
        }
      }
コード例 #2
0
  /**
   * Tests that the system.peers table is not updated after a node has been removed. (See
   * CASSANDRA-6053)
   */
  @Test
  public void testStateChangeOnRemovedNode() throws UnknownHostException {
    StorageService ss = StorageService.instance;
    VersionedValue.VersionedValueFactory valueFactory =
        new VersionedValue.VersionedValueFactory(partitioner);

    // create a ring of 2 nodes
    ArrayList<Token> endpointTokens = new ArrayList<>();
    List<InetAddress> hosts = new ArrayList<>();
    Util.createInitialRing(
        ss, partitioner, endpointTokens, new ArrayList<Token>(), hosts, new ArrayList<UUID>(), 2);

    InetAddress toRemove = hosts.get(1);
    SystemKeyspace.updatePeerInfo(toRemove, "data_center", "dc42");
    SystemKeyspace.updatePeerInfo(toRemove, "rack", "rack42");
    assertEquals("rack42", SystemKeyspace.loadDcRackInfo().get(toRemove).get("rack"));

    // mark the node as removed
    Gossiper.instance.injectApplicationState(
        toRemove,
        ApplicationState.STATUS,
        valueFactory.left(
            Collections.singleton(endpointTokens.get(1)), Gossiper.computeExpireTime()));
    assertTrue(
        Gossiper.instance.isDeadState(Gossiper.instance.getEndpointStateForEndpoint(hosts.get(1))));

    // state changes made after the endpoint has left should be ignored
    ss.onChange(hosts.get(1), ApplicationState.RACK, valueFactory.rack("rack9999"));
    assertEquals("rack42", SystemKeyspace.loadDcRackInfo().get(toRemove).get("rack"));
  }
コード例 #3
0
  /** Return all of the neighbors with whom we share the provided range. */
  static Set<InetAddress> getNeighbors(String table, Range<Token> toRepair) {
    StorageService ss = StorageService.instance;
    Map<Range<Token>, List<InetAddress>> replicaSets = ss.getRangeToAddressMap(table);
    Range<Token> rangeSuperSet = null;
    for (Range<Token> range : ss.getLocalRanges(table)) {
      if (range.contains(toRepair)) {
        rangeSuperSet = range;
        break;
      } else if (range.intersects(toRepair)) {
        throw new IllegalArgumentException(
            "Requested range intersects a local range but is not fully contained in one; this would lead to imprecise repair");
      }
    }
    if (rangeSuperSet == null || !replicaSets.containsKey(toRepair)) return Collections.emptySet();

    Set<InetAddress> neighbors = new HashSet<InetAddress>(replicaSets.get(rangeSuperSet));
    neighbors.remove(FBUtilities.getBroadcastAddress());
    // Excluding all node with version <= 0.7 since they don't know how to
    // create a correct merkle tree (they build it over the full range)
    Iterator<InetAddress> iter = neighbors.iterator();
    while (iter.hasNext()) {
      InetAddress endpoint = iter.next();
      if (Gossiper.instance.getVersion(endpoint) <= MessagingService.VERSION_07) {
        logger.info(
            "Excluding "
                + endpoint
                + " from repair because it is on version 0.7 or sooner. You should consider updating this node before running repair again.");
        iter.remove();
      }
    }
    return neighbors;
  }
コード例 #4
0
  @Test
  public void testStateJumpToLeft() throws UnknownHostException {
    StorageService ss = StorageService.instance;
    TokenMetadata tmd = ss.getTokenMetadata();
    tmd.clearUnsafe();
    IPartitioner partitioner = RandomPartitioner.instance;
    VersionedValue.VersionedValueFactory valueFactory =
        new VersionedValue.VersionedValueFactory(partitioner);

    ArrayList<Token> endpointTokens = new ArrayList<Token>();
    ArrayList<Token> keyTokens = new ArrayList<Token>();
    List<InetAddress> hosts = new ArrayList<InetAddress>();
    List<UUID> hostIds = new ArrayList<UUID>();

    // create a ring of 6 nodes
    Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, hostIds, 7);

    // node hosts.get(2) goes jumps to left
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.left(
            Collections.singleton(endpointTokens.get(2)), Gossiper.computeExpireTime()));

    assertFalse(tmd.isMember(hosts.get(2)));

    // node hosts.get(4) goes to bootstrap
    Gossiper.instance.injectApplicationState(
        hosts.get(3),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(1))));
    ss.onChange(
        hosts.get(3),
        ApplicationState.STATUS,
        valueFactory.bootstrapping(Collections.<Token>singleton(keyTokens.get(1))));

    assertFalse(tmd.isMember(hosts.get(3)));
    assertEquals(1, tmd.getBootstrapTokens().size());
    assertEquals(hosts.get(3), tmd.getBootstrapTokens().get(keyTokens.get(1)));

    // and then directly to 'left'
    Gossiper.instance.injectApplicationState(
        hosts.get(2),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(1))));
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.left(Collections.singleton(keyTokens.get(1)), Gossiper.computeExpireTime()));

    assertTrue(tmd.getBootstrapTokens().size() == 0);
    assertFalse(tmd.isMember(hosts.get(2)));
    assertFalse(tmd.isLeaving(hosts.get(2)));
  }
コード例 #5
0
    public TreeRequest deserialize(DataInput dis, int version) throws IOException {
      String sessId = dis.readUTF();
      InetAddress endpoint = CompactEndpointSerializationHelper.deserialize(dis);
      CFPair cfpair = new CFPair(dis.readUTF(), dis.readUTF());
      Range<Token> range;
      if (version > MessagingService.VERSION_07)
        range = (Range<Token>) AbstractBounds.serializer().deserialize(dis, version);
      else
        range =
            new Range<Token>(
                StorageService.getPartitioner().getMinimumToken(),
                StorageService.getPartitioner().getMinimumToken());

      return new TreeRequest(sessId, endpoint, range, cfpair);
    }
コード例 #6
0
 /** Return all of the neighbors with whom we share data. */
 static Set<InetAddress> getNeighbors(String table, Range range) {
   StorageService ss = StorageService.instance;
   Map<Range, List<InetAddress>> replicaSets = ss.getRangeToAddressMap(table);
   if (!replicaSets.containsKey(range)) return Collections.emptySet();
   Set<InetAddress> neighbors = new HashSet<InetAddress>(replicaSets.get(range));
   neighbors.remove(FBUtilities.getLocalAddress());
   // Excluding all node with version <= 0.7 since they don't know how to
   // create a correct merkle tree (they build it over the full range)
   Iterator<InetAddress> iter = neighbors.iterator();
   while (iter.hasNext()) {
     InetAddress endpoint = iter.next();
     if (Gossiper.instance.getVersion(endpoint) <= MessagingService.VERSION_07) {
       logger.info(
           "Excluding "
               + endpoint
               + " from repair because it is on version 0.7 or sooner. You should consider updating this node before running repair again.");
       iter.remove();
     }
   }
   return neighbors;
 }
コード例 #7
0
  @Test
  public void testRemovingStatusForNonMember() throws UnknownHostException {
    // create a ring of 1 node
    StorageService ss = StorageService.instance;
    VersionedValue.VersionedValueFactory valueFactory =
        new VersionedValue.VersionedValueFactory(partitioner);
    Util.createInitialRing(
        ss,
        partitioner,
        new ArrayList<Token>(),
        new ArrayList<Token>(),
        new ArrayList<InetAddress>(),
        new ArrayList<UUID>(),
        1);

    // make a REMOVING state change on a non-member endpoint; without the CASSANDRA-6564 fix, this
    // would result in an ArrayIndexOutOfBoundsException
    ss.onChange(
        InetAddress.getByName("192.168.1.42"),
        ApplicationState.STATUS,
        valueFactory.removingNonlocal(UUID.randomUUID()));
  }
コード例 #8
0
      /** Compares our trees, and triggers repairs for any ranges that mismatch. */
      public void run() {
        // restore partitioners (in case we were serialized)
        if (r1.tree.partitioner() == null) r1.tree.partitioner(StorageService.getPartitioner());
        if (r2.tree.partitioner() == null) r2.tree.partitioner(StorageService.getPartitioner());

        // compare trees, and collect differences
        differences.addAll(MerkleTree.difference(r1.tree, r2.tree));

        // choose a repair method based on the significance of the difference
        String format =
            String.format(
                "[repair #%s] Endpoints %s and %s %%s for %s",
                getName(), r1.endpoint, r2.endpoint, cfname);
        if (differences.isEmpty()) {
          logger.info(String.format(format, "are consistent"));
          completed(this);
          return;
        }

        // non-0 difference: perform streaming repair
        logger.info(String.format(format, "have " + differences.size() + " range(s) out of sync"));
        performStreamingRepair();
      }
コード例 #9
0
  @Test
  public void testStateJumpToLeaving() throws UnknownHostException {
    StorageService ss = StorageService.instance;
    TokenMetadata tmd = ss.getTokenMetadata();
    tmd.clearUnsafe();
    IPartitioner partitioner = RandomPartitioner.instance;
    VersionedValue.VersionedValueFactory valueFactory =
        new VersionedValue.VersionedValueFactory(partitioner);

    ArrayList<Token> endpointTokens = new ArrayList<Token>();
    ArrayList<Token> keyTokens = new ArrayList<Token>();
    List<InetAddress> hosts = new ArrayList<InetAddress>();
    List<UUID> hostIds = new ArrayList<UUID>();

    // create a ring or 5 nodes
    Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, hostIds, 6);

    // node 2 leaves with _different_ token
    Gossiper.instance.injectApplicationState(
        hosts.get(2),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(0))));
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.leaving(Collections.singleton(keyTokens.get(0))));

    assertEquals(keyTokens.get(0), tmd.getToken(hosts.get(2)));
    assertTrue(tmd.isLeaving(hosts.get(2)));
    assertNull(tmd.getEndpoint(endpointTokens.get(2)));

    // go to boostrap
    Gossiper.instance.injectApplicationState(
        hosts.get(2),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(1))));
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.bootstrapping(Collections.<Token>singleton(keyTokens.get(1))));

    assertFalse(tmd.isLeaving(hosts.get(2)));
    assertEquals(1, tmd.getBootstrapTokens().size());
    assertEquals(hosts.get(2), tmd.getBootstrapTokens().get(keyTokens.get(1)));

    // jump to leaving again
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.leaving(Collections.singleton(keyTokens.get(1))));

    assertEquals(hosts.get(2), tmd.getEndpoint(keyTokens.get(1)));
    assertTrue(tmd.isLeaving(hosts.get(2)));
    assertTrue(tmd.getBootstrapTokens().isEmpty());

    // go to state left
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.left(Collections.singleton(keyTokens.get(1)), Gossiper.computeExpireTime()));

    assertFalse(tmd.isMember(hosts.get(2)));
    assertFalse(tmd.isLeaving(hosts.get(2)));
  }
コード例 #10
0
  @Test
  public void testStateJumpToNormal() throws UnknownHostException {
    StorageService ss = StorageService.instance;
    TokenMetadata tmd = ss.getTokenMetadata();
    tmd.clearUnsafe();
    IPartitioner partitioner = RandomPartitioner.instance;
    VersionedValue.VersionedValueFactory valueFactory =
        new VersionedValue.VersionedValueFactory(partitioner);

    ArrayList<Token> endpointTokens = new ArrayList<Token>();
    ArrayList<Token> keyTokens = new ArrayList<Token>();
    List<InetAddress> hosts = new ArrayList<InetAddress>();
    List<UUID> hostIds = new ArrayList<UUID>();

    // create a ring or 5 nodes
    Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, hostIds, 6);

    // node 2 leaves
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.leaving(Collections.singleton(endpointTokens.get(2))));

    assertTrue(tmd.isLeaving(hosts.get(2)));
    assertEquals(endpointTokens.get(2), tmd.getToken(hosts.get(2)));

    // back to normal
    Gossiper.instance.injectApplicationState(
        hosts.get(2),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(2))));
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.normal(Collections.singleton(keyTokens.get(2))));

    assertTrue(tmd.getLeavingEndpoints().isEmpty());
    assertEquals(keyTokens.get(2), tmd.getToken(hosts.get(2)));

    // node 3 goes through leave and left and then jumps to normal at its new token
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.leaving(Collections.singleton(keyTokens.get(2))));
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.left(Collections.singleton(keyTokens.get(2)), Gossiper.computeExpireTime()));
    Gossiper.instance.injectApplicationState(
        hosts.get(2),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(4))));
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.normal(Collections.singleton(keyTokens.get(4))));

    assertTrue(tmd.getBootstrapTokens().isEmpty());
    assertTrue(tmd.getLeavingEndpoints().isEmpty());
    assertEquals(keyTokens.get(4), tmd.getToken(hosts.get(2)));
  }
コード例 #11
0
  /**
   * Test whether write endpoints is correct when the node is leaving. Uses StorageService.onChange
   * and does not manipulate token metadata directly.
   */
  @Test
  public void newTestWriteEndpointsDuringLeave() throws Exception {
    StorageService ss = StorageService.instance;
    final int RING_SIZE = 6;
    final int LEAVING_NODE = 3;

    TokenMetadata tmd = ss.getTokenMetadata();
    tmd.clearUnsafe();
    IPartitioner partitioner = RandomPartitioner.instance;
    VersionedValue.VersionedValueFactory valueFactory =
        new VersionedValue.VersionedValueFactory(partitioner);

    ArrayList<Token> endpointTokens = new ArrayList<Token>();
    ArrayList<Token> keyTokens = new ArrayList<Token>();
    List<InetAddress> hosts = new ArrayList<InetAddress>();
    List<UUID> hostIds = new ArrayList<UUID>();

    Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, hostIds, RING_SIZE);

    Map<Token, List<InetAddress>> expectedEndpoints = new HashMap<Token, List<InetAddress>>();
    for (String keyspaceName : Schema.instance.getNonLocalStrategyKeyspaces()) {
      for (Token token : keyTokens) {
        List<InetAddress> endpoints = new ArrayList<InetAddress>();
        Iterator<Token> tokenIter = TokenMetadata.ringIterator(tmd.sortedTokens(), token, false);
        while (tokenIter.hasNext()) {
          endpoints.add(tmd.getEndpoint(tokenIter.next()));
        }
        expectedEndpoints.put(token, endpoints);
      }
    }

    // Third node leaves
    ss.onChange(
        hosts.get(LEAVING_NODE),
        ApplicationState.STATUS,
        valueFactory.leaving(Collections.singleton(endpointTokens.get(LEAVING_NODE))));
    assertTrue(tmd.isLeaving(hosts.get(LEAVING_NODE)));

    Thread.sleep(100); // because there is a tight race between submit and blockUntilFinished
    PendingRangeCalculatorService.instance.blockUntilFinished();

    AbstractReplicationStrategy strategy;
    for (String keyspaceName : Schema.instance.getNonLocalStrategyKeyspaces()) {
      strategy = getStrategy(keyspaceName, tmd);
      for (Token token : keyTokens) {
        int replicationFactor = strategy.getReplicationFactor();

        HashSet<InetAddress> actual =
            new HashSet<InetAddress>(
                tmd.getWriteEndpoints(
                    token,
                    keyspaceName,
                    strategy.calculateNaturalEndpoints(token, tmd.cloneOnlyTokenMap())));
        HashSet<InetAddress> expected = new HashSet<InetAddress>();

        for (int i = 0; i < replicationFactor; i++) {
          expected.add(expectedEndpoints.get(token).get(i));
        }

        // if the leaving node is in the endpoint list,
        // then we should expect it plus one extra for when it's gone
        if (expected.contains(hosts.get(LEAVING_NODE)))
          expected.add(expectedEndpoints.get(token).get(replicationFactor));

        assertEquals("mismatched endpoint sets", expected, actual);
      }
    }
  }
コード例 #12
0
  @Test
  public void testStateJumpToBootstrap() throws UnknownHostException {
    StorageService ss = StorageService.instance;
    TokenMetadata tmd = ss.getTokenMetadata();
    tmd.clearUnsafe();
    IPartitioner partitioner = RandomPartitioner.instance;
    VersionedValue.VersionedValueFactory valueFactory =
        new VersionedValue.VersionedValueFactory(partitioner);

    ArrayList<Token> endpointTokens = new ArrayList<Token>();
    ArrayList<Token> keyTokens = new ArrayList<Token>();
    List<InetAddress> hosts = new ArrayList<InetAddress>();
    List<UUID> hostIds = new ArrayList<UUID>();

    // create a ring or 5 nodes
    Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, hostIds, 7);

    // node 2 leaves
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.leaving(Collections.singleton(endpointTokens.get(2))));

    // don't bother to test pending ranges here, that is extensively tested by other
    // tests. Just check that the node is in appropriate lists.
    assertTrue(tmd.isMember(hosts.get(2)));
    assertTrue(tmd.isLeaving(hosts.get(2)));
    assertTrue(tmd.getBootstrapTokens().isEmpty());

    // Bootstrap the node immedidiately to keyTokens.get(4) without going through STATE_LEFT
    Gossiper.instance.injectApplicationState(
        hosts.get(2),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(4))));
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.bootstrapping(Collections.<Token>singleton(keyTokens.get(4))));

    assertFalse(tmd.isMember(hosts.get(2)));
    assertFalse(tmd.isLeaving(hosts.get(2)));
    assertEquals(hosts.get(2), tmd.getBootstrapTokens().get(keyTokens.get(4)));

    // Bootstrap node hosts.get(3) to keyTokens.get(1)
    Gossiper.instance.injectApplicationState(
        hosts.get(3),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(1))));
    ss.onChange(
        hosts.get(3),
        ApplicationState.STATUS,
        valueFactory.bootstrapping(Collections.<Token>singleton(keyTokens.get(1))));

    assertFalse(tmd.isMember(hosts.get(3)));
    assertFalse(tmd.isLeaving(hosts.get(3)));
    assertEquals(hosts.get(2), tmd.getBootstrapTokens().get(keyTokens.get(4)));
    assertEquals(hosts.get(3), tmd.getBootstrapTokens().get(keyTokens.get(1)));

    // Bootstrap node hosts.get(2) further to keyTokens.get(3)
    Gossiper.instance.injectApplicationState(
        hosts.get(2),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(3))));
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.bootstrapping(Collections.<Token>singleton(keyTokens.get(3))));

    assertFalse(tmd.isMember(hosts.get(2)));
    assertFalse(tmd.isLeaving(hosts.get(2)));
    assertEquals(hosts.get(2), tmd.getBootstrapTokens().get(keyTokens.get(3)));
    assertNull(tmd.getBootstrapTokens().get(keyTokens.get(4)));
    assertEquals(hosts.get(3), tmd.getBootstrapTokens().get(keyTokens.get(1)));

    // Go to normal again for both nodes
    Gossiper.instance.injectApplicationState(
        hosts.get(3),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(2))));
    Gossiper.instance.injectApplicationState(
        hosts.get(2),
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(3))));
    ss.onChange(
        hosts.get(2),
        ApplicationState.STATUS,
        valueFactory.normal(Collections.singleton(keyTokens.get(3))));
    ss.onChange(
        hosts.get(3),
        ApplicationState.STATUS,
        valueFactory.normal(Collections.singleton(keyTokens.get(2))));

    assertTrue(tmd.isMember(hosts.get(2)));
    assertFalse(tmd.isLeaving(hosts.get(2)));
    assertEquals(keyTokens.get(3), tmd.getToken(hosts.get(2)));
    assertTrue(tmd.isMember(hosts.get(3)));
    assertFalse(tmd.isLeaving(hosts.get(3)));
    assertEquals(keyTokens.get(2), tmd.getToken(hosts.get(3)));

    assertTrue(tmd.getBootstrapTokens().isEmpty());
  }
コード例 #13
0
  /** Test pending ranges and write endpoints when multiple nodes are on the move simultaneously */
  @Test
  public void testSimultaneousMove() throws UnknownHostException {
    StorageService ss = StorageService.instance;
    final int RING_SIZE = 10;
    TokenMetadata tmd = ss.getTokenMetadata();
    tmd.clearUnsafe();
    IPartitioner partitioner = RandomPartitioner.instance;
    VersionedValue.VersionedValueFactory valueFactory =
        new VersionedValue.VersionedValueFactory(partitioner);

    ArrayList<Token> endpointTokens = new ArrayList<Token>();
    ArrayList<Token> keyTokens = new ArrayList<Token>();
    List<InetAddress> hosts = new ArrayList<InetAddress>();
    List<UUID> hostIds = new ArrayList<UUID>();

    // create a ring or 10 nodes
    Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, hostIds, RING_SIZE);

    // nodes 6, 8 and 9 leave
    final int[] LEAVING = new int[] {6, 8, 9};
    for (int leaving : LEAVING)
      ss.onChange(
          hosts.get(leaving),
          ApplicationState.STATUS,
          valueFactory.leaving(Collections.singleton(endpointTokens.get(leaving))));

    // boot two new nodes with keyTokens.get(5) and keyTokens.get(7)
    InetAddress boot1 = InetAddress.getByName("127.0.1.1");
    Gossiper.instance.initializeNodeUnsafe(boot1, UUID.randomUUID(), 1);
    Gossiper.instance.injectApplicationState(
        boot1,
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(5))));
    ss.onChange(
        boot1,
        ApplicationState.STATUS,
        valueFactory.bootstrapping(Collections.<Token>singleton(keyTokens.get(5))));
    InetAddress boot2 = InetAddress.getByName("127.0.1.2");
    Gossiper.instance.initializeNodeUnsafe(boot2, UUID.randomUUID(), 1);
    Gossiper.instance.injectApplicationState(
        boot2,
        ApplicationState.TOKENS,
        valueFactory.tokens(Collections.singleton(keyTokens.get(7))));
    ss.onChange(
        boot2,
        ApplicationState.STATUS,
        valueFactory.bootstrapping(Collections.<Token>singleton(keyTokens.get(7))));

    Collection<InetAddress> endpoints = null;

    /* don't require test update every time a new keyspace is added to test/conf/cassandra.yaml */
    Map<String, AbstractReplicationStrategy> keyspaceStrategyMap =
        new HashMap<String, AbstractReplicationStrategy>();
    for (int i = 1; i <= 4; i++) {
      keyspaceStrategyMap.put(
          "LeaveAndBootstrapTestKeyspace" + i,
          getStrategy("LeaveAndBootstrapTestKeyspace" + i, tmd));
    }

    // pre-calculate the results.
    Map<String, Multimap<Token, InetAddress>> expectedEndpoints =
        new HashMap<String, Multimap<Token, InetAddress>>();
    expectedEndpoints.put(KEYSPACE1, HashMultimap.<Token, InetAddress>create());
    expectedEndpoints.get(KEYSPACE1).putAll(new BigIntegerToken("5"), makeAddrs("127.0.0.2"));
    expectedEndpoints.get(KEYSPACE1).putAll(new BigIntegerToken("15"), makeAddrs("127.0.0.3"));
    expectedEndpoints.get(KEYSPACE1).putAll(new BigIntegerToken("25"), makeAddrs("127.0.0.4"));
    expectedEndpoints.get(KEYSPACE1).putAll(new BigIntegerToken("35"), makeAddrs("127.0.0.5"));
    expectedEndpoints.get(KEYSPACE1).putAll(new BigIntegerToken("45"), makeAddrs("127.0.0.6"));
    expectedEndpoints
        .get(KEYSPACE1)
        .putAll(new BigIntegerToken("55"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.1.1"));
    expectedEndpoints.get(KEYSPACE1).putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.8"));
    expectedEndpoints
        .get(KEYSPACE1)
        .putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.1.2", "127.0.0.1"));
    expectedEndpoints
        .get(KEYSPACE1)
        .putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.10", "127.0.0.1"));
    expectedEndpoints.get(KEYSPACE1).putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.1"));
    expectedEndpoints.put(KEYSPACE2, HashMultimap.<Token, InetAddress>create());
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("5"), makeAddrs("127.0.0.2"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("15"), makeAddrs("127.0.0.3"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("25"), makeAddrs("127.0.0.4"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("35"), makeAddrs("127.0.0.5"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("45"), makeAddrs("127.0.0.6"));
    expectedEndpoints
        .get(KEYSPACE2)
        .putAll(new BigIntegerToken("55"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.1.1"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.8"));
    expectedEndpoints
        .get(KEYSPACE2)
        .putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.1.2", "127.0.0.1"));
    expectedEndpoints
        .get(KEYSPACE2)
        .putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.10", "127.0.0.1"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.1"));
    expectedEndpoints.put(KEYSPACE3, HashMultimap.<Token, InetAddress>create());
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("5"),
            makeAddrs("127.0.0.2", "127.0.0.3", "127.0.0.4", "127.0.0.5", "127.0.0.6"));
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("15"),
            makeAddrs(
                "127.0.0.3",
                "127.0.0.4",
                "127.0.0.5",
                "127.0.0.6",
                "127.0.0.7",
                "127.0.1.1",
                "127.0.0.8"));
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("25"),
            makeAddrs(
                "127.0.0.4",
                "127.0.0.5",
                "127.0.0.6",
                "127.0.0.7",
                "127.0.0.8",
                "127.0.1.2",
                "127.0.0.1",
                "127.0.1.1"));
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("35"),
            makeAddrs(
                "127.0.0.5",
                "127.0.0.6",
                "127.0.0.7",
                "127.0.0.8",
                "127.0.0.9",
                "127.0.1.2",
                "127.0.0.1",
                "127.0.0.2",
                "127.0.1.1"));
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("45"),
            makeAddrs(
                "127.0.0.6",
                "127.0.0.7",
                "127.0.0.8",
                "127.0.0.9",
                "127.0.0.10",
                "127.0.1.2",
                "127.0.0.1",
                "127.0.0.2",
                "127.0.1.1",
                "127.0.0.3"));
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("55"),
            makeAddrs(
                "127.0.0.7",
                "127.0.0.8",
                "127.0.0.9",
                "127.0.0.10",
                "127.0.0.1",
                "127.0.0.2",
                "127.0.0.3",
                "127.0.0.4",
                "127.0.1.1",
                "127.0.1.2"));
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("65"),
            makeAddrs(
                "127.0.0.8",
                "127.0.0.9",
                "127.0.0.10",
                "127.0.0.1",
                "127.0.0.2",
                "127.0.1.2",
                "127.0.0.3",
                "127.0.0.4"));
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("75"),
            makeAddrs(
                "127.0.0.9",
                "127.0.0.10",
                "127.0.0.1",
                "127.0.0.2",
                "127.0.0.3",
                "127.0.1.2",
                "127.0.0.4",
                "127.0.0.5"));
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("85"),
            makeAddrs(
                "127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.0.3", "127.0.0.4", "127.0.0.5"));
    expectedEndpoints
        .get(KEYSPACE3)
        .putAll(
            new BigIntegerToken("95"),
            makeAddrs("127.0.0.1", "127.0.0.2", "127.0.0.3", "127.0.0.4", "127.0.0.5"));
    expectedEndpoints.put(KEYSPACE4, HashMultimap.<Token, InetAddress>create());
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(new BigIntegerToken("5"), makeAddrs("127.0.0.2", "127.0.0.3", "127.0.0.4"));
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(new BigIntegerToken("15"), makeAddrs("127.0.0.3", "127.0.0.4", "127.0.0.5"));
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(new BigIntegerToken("25"), makeAddrs("127.0.0.4", "127.0.0.5", "127.0.0.6"));
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(
            new BigIntegerToken("35"),
            makeAddrs("127.0.0.5", "127.0.0.6", "127.0.0.7", "127.0.1.1", "127.0.0.8"));
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(
            new BigIntegerToken("45"),
            makeAddrs(
                "127.0.0.6", "127.0.0.7", "127.0.0.8", "127.0.1.2", "127.0.0.1", "127.0.1.1"));
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(
            new BigIntegerToken("55"),
            makeAddrs(
                "127.0.0.7",
                "127.0.0.8",
                "127.0.0.9",
                "127.0.0.1",
                "127.0.0.2",
                "127.0.1.1",
                "127.0.1.2"));
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(
            new BigIntegerToken("65"),
            makeAddrs(
                "127.0.0.8", "127.0.0.9", "127.0.0.10", "127.0.1.2", "127.0.0.1", "127.0.0.2"));
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(
            new BigIntegerToken("75"),
            makeAddrs(
                "127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.1.2", "127.0.0.2", "127.0.0.3"));
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(
            new BigIntegerToken("85"),
            makeAddrs("127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.0.3"));
    expectedEndpoints
        .get(KEYSPACE4)
        .putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.1", "127.0.0.2", "127.0.0.3"));

    PendingRangeCalculatorService.instance.blockUntilFinished();

    for (Map.Entry<String, AbstractReplicationStrategy> keyspaceStrategy :
        keyspaceStrategyMap.entrySet()) {
      String keyspaceName = keyspaceStrategy.getKey();
      AbstractReplicationStrategy strategy = keyspaceStrategy.getValue();

      for (int i = 0; i < keyTokens.size(); i++) {
        endpoints =
            tmd.getWriteEndpoints(
                keyTokens.get(i), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(i)));
        assertEquals(
            expectedEndpoints.get(keyspaceName).get(keyTokens.get(i)).size(), endpoints.size());
        assertTrue(
            expectedEndpoints.get(keyspaceName).get(keyTokens.get(i)).containsAll(endpoints));
      }

      // just to be sure that things still work according to the old tests, run them:
      if (strategy.getReplicationFactor() != 3) continue;
      // tokens 5, 15 and 25 should go three nodes
      for (int i = 0; i < 3; ++i) {
        endpoints =
            tmd.getWriteEndpoints(
                keyTokens.get(i), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(i)));
        assertEquals(3, endpoints.size());
        assertTrue(endpoints.contains(hosts.get(i + 1)));
        assertTrue(endpoints.contains(hosts.get(i + 2)));
        assertTrue(endpoints.contains(hosts.get(i + 3)));
      }

      // token 35 should go to nodes 4, 5, 6, 7 and boot1
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(3), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(3)));
      assertEquals(5, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(4)));
      assertTrue(endpoints.contains(hosts.get(5)));
      assertTrue(endpoints.contains(hosts.get(6)));
      assertTrue(endpoints.contains(hosts.get(7)));
      assertTrue(endpoints.contains(boot1));

      // token 45 should go to nodes 5, 6, 7, 0, boot1 and boot2
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(4), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(4)));
      assertEquals(6, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(5)));
      assertTrue(endpoints.contains(hosts.get(6)));
      assertTrue(endpoints.contains(hosts.get(7)));
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(boot1));
      assertTrue(endpoints.contains(boot2));

      // token 55 should go to nodes 6, 7, 8, 0, 1, boot1 and boot2
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(5), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(5)));
      assertEquals(7, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(6)));
      assertTrue(endpoints.contains(hosts.get(7)));
      assertTrue(endpoints.contains(hosts.get(8)));
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(hosts.get(1)));
      assertTrue(endpoints.contains(boot1));
      assertTrue(endpoints.contains(boot2));

      // token 65 should go to nodes 7, 8, 9, 0, 1 and boot2
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(6), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(6)));
      assertEquals(6, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(7)));
      assertTrue(endpoints.contains(hosts.get(8)));
      assertTrue(endpoints.contains(hosts.get(9)));
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(hosts.get(1)));
      assertTrue(endpoints.contains(boot2));

      // token 75 should to go nodes 8, 9, 0, 1, 2 and boot2
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(7), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(7)));
      assertEquals(6, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(8)));
      assertTrue(endpoints.contains(hosts.get(9)));
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(hosts.get(1)));
      assertTrue(endpoints.contains(hosts.get(2)));
      assertTrue(endpoints.contains(boot2));

      // token 85 should go to nodes 9, 0, 1 and 2
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(8), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(8)));
      assertEquals(4, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(9)));
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(hosts.get(1)));
      assertTrue(endpoints.contains(hosts.get(2)));

      // token 95 should go to nodes 0, 1 and 2
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(9), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(9)));
      assertEquals(3, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(hosts.get(1)));
      assertTrue(endpoints.contains(hosts.get(2)));
    }

    // Now finish node 6 and node 9 leaving, as well as boot1 (after this node 8 is still
    // leaving and boot2 in progress
    ss.onChange(
        hosts.get(LEAVING[0]),
        ApplicationState.STATUS,
        valueFactory.left(
            Collections.singleton(endpointTokens.get(LEAVING[0])), Gossiper.computeExpireTime()));
    ss.onChange(
        hosts.get(LEAVING[2]),
        ApplicationState.STATUS,
        valueFactory.left(
            Collections.singleton(endpointTokens.get(LEAVING[2])), Gossiper.computeExpireTime()));
    ss.onChange(
        boot1,
        ApplicationState.STATUS,
        valueFactory.normal(Collections.singleton(keyTokens.get(5))));

    // adjust precalcuated results.  this changes what the epected endpoints are.
    expectedEndpoints
        .get(KEYSPACE1)
        .get(new BigIntegerToken("55"))
        .removeAll(makeAddrs("127.0.0.7", "127.0.0.8"));
    expectedEndpoints
        .get(KEYSPACE1)
        .get(new BigIntegerToken("85"))
        .removeAll(makeAddrs("127.0.0.10"));
    expectedEndpoints
        .get(KEYSPACE2)
        .get(new BigIntegerToken("55"))
        .removeAll(makeAddrs("127.0.0.7", "127.0.0.8"));
    expectedEndpoints
        .get(KEYSPACE2)
        .get(new BigIntegerToken("85"))
        .removeAll(makeAddrs("127.0.0.10"));
    expectedEndpoints
        .get(KEYSPACE3)
        .get(new BigIntegerToken("15"))
        .removeAll(makeAddrs("127.0.0.7", "127.0.0.8"));
    expectedEndpoints
        .get(KEYSPACE3)
        .get(new BigIntegerToken("25"))
        .removeAll(makeAddrs("127.0.0.7", "127.0.1.2", "127.0.0.1"));
    expectedEndpoints
        .get(KEYSPACE3)
        .get(new BigIntegerToken("35"))
        .removeAll(makeAddrs("127.0.0.7", "127.0.0.2"));
    expectedEndpoints
        .get(KEYSPACE3)
        .get(new BigIntegerToken("45"))
        .removeAll(makeAddrs("127.0.0.7", "127.0.0.10", "127.0.0.3"));
    expectedEndpoints
        .get(KEYSPACE3)
        .get(new BigIntegerToken("55"))
        .removeAll(makeAddrs("127.0.0.7", "127.0.0.10", "127.0.0.4"));
    expectedEndpoints
        .get(KEYSPACE3)
        .get(new BigIntegerToken("65"))
        .removeAll(makeAddrs("127.0.0.10"));
    expectedEndpoints
        .get(KEYSPACE3)
        .get(new BigIntegerToken("75"))
        .removeAll(makeAddrs("127.0.0.10"));
    expectedEndpoints
        .get(KEYSPACE3)
        .get(new BigIntegerToken("85"))
        .removeAll(makeAddrs("127.0.0.10"));
    expectedEndpoints
        .get(KEYSPACE4)
        .get(new BigIntegerToken("35"))
        .removeAll(makeAddrs("127.0.0.7", "127.0.0.8"));
    expectedEndpoints
        .get(KEYSPACE4)
        .get(new BigIntegerToken("45"))
        .removeAll(makeAddrs("127.0.0.7", "127.0.1.2", "127.0.0.1"));
    expectedEndpoints
        .get(KEYSPACE4)
        .get(new BigIntegerToken("55"))
        .removeAll(makeAddrs("127.0.0.2", "127.0.0.7"));
    expectedEndpoints
        .get(KEYSPACE4)
        .get(new BigIntegerToken("65"))
        .removeAll(makeAddrs("127.0.0.10"));
    expectedEndpoints
        .get(KEYSPACE4)
        .get(new BigIntegerToken("75"))
        .removeAll(makeAddrs("127.0.0.10"));
    expectedEndpoints
        .get(KEYSPACE4)
        .get(new BigIntegerToken("85"))
        .removeAll(makeAddrs("127.0.0.10"));

    PendingRangeCalculatorService.instance.blockUntilFinished();

    for (Map.Entry<String, AbstractReplicationStrategy> keyspaceStrategy :
        keyspaceStrategyMap.entrySet()) {
      String keyspaceName = keyspaceStrategy.getKey();
      AbstractReplicationStrategy strategy = keyspaceStrategy.getValue();

      for (int i = 0; i < keyTokens.size(); i++) {
        endpoints =
            tmd.getWriteEndpoints(
                keyTokens.get(i), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(i)));
        assertEquals(
            expectedEndpoints.get(keyspaceName).get(keyTokens.get(i)).size(), endpoints.size());
        assertTrue(
            expectedEndpoints.get(keyspaceName).get(keyTokens.get(i)).containsAll(endpoints));
      }

      if (strategy.getReplicationFactor() != 3) continue;
      // leave this stuff in to guarantee the old tests work the way they were supposed to.
      // tokens 5, 15 and 25 should go three nodes
      for (int i = 0; i < 3; ++i) {
        endpoints =
            tmd.getWriteEndpoints(
                keyTokens.get(i), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(i)));
        assertEquals(3, endpoints.size());
        assertTrue(endpoints.contains(hosts.get(i + 1)));
        assertTrue(endpoints.contains(hosts.get(i + 2)));
        assertTrue(endpoints.contains(hosts.get(i + 3)));
      }

      // token 35 goes to nodes 4, 5 and boot1
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(3), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(3)));
      assertEquals(3, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(4)));
      assertTrue(endpoints.contains(hosts.get(5)));
      assertTrue(endpoints.contains(boot1));

      // token 45 goes to nodes 5, boot1 and node7
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(4), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(4)));
      assertEquals(3, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(5)));
      assertTrue(endpoints.contains(boot1));
      assertTrue(endpoints.contains(hosts.get(7)));

      // token 55 goes to boot1, 7, boot2, 8 and 0
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(5), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(5)));
      assertEquals(5, endpoints.size());
      assertTrue(endpoints.contains(boot1));
      assertTrue(endpoints.contains(hosts.get(7)));
      assertTrue(endpoints.contains(boot2));
      assertTrue(endpoints.contains(hosts.get(8)));
      assertTrue(endpoints.contains(hosts.get(0)));

      // token 65 goes to nodes 7, boot2, 8, 0 and 1
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(6), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(6)));
      assertEquals(5, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(7)));
      assertTrue(endpoints.contains(boot2));
      assertTrue(endpoints.contains(hosts.get(8)));
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(hosts.get(1)));

      // token 75 goes to nodes boot2, 8, 0, 1 and 2
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(7), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(7)));
      assertEquals(5, endpoints.size());
      assertTrue(endpoints.contains(boot2));
      assertTrue(endpoints.contains(hosts.get(8)));
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(hosts.get(1)));
      assertTrue(endpoints.contains(hosts.get(2)));

      // token 85 goes to nodes 0, 1 and 2
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(8), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(8)));
      assertEquals(3, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(hosts.get(1)));
      assertTrue(endpoints.contains(hosts.get(2)));

      // token 95 goes to nodes 0, 1 and 2
      endpoints =
          tmd.getWriteEndpoints(
              keyTokens.get(9), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(9)));
      assertEquals(3, endpoints.size());
      assertTrue(endpoints.contains(hosts.get(0)));
      assertTrue(endpoints.contains(hosts.get(1)));
      assertTrue(endpoints.contains(hosts.get(2)));
    }
  }