Examples with AbstractReplicationStrategy org.apache.cassandra.locator.AbstractReplicationStrategy used on opensource projects

Example 11 with AbstractReplicationStrategy

use of org.apache.cassandra.locator.AbstractReplicationStrategy in project eiger by wlloyd.

the class MoveTest method newTestWriteEndpointsDuringMove.

/*
     * Test whether write endpoints is correct when the node is moving. Uses
     * StorageService.onChange and does not manipulate token metadata directly.
     */
@Test
public void newTestWriteEndpointsDuringMove() throws Exception {
    StorageService ss = StorageService.instance;
    final int RING_SIZE = 10;
    // index of the moving node
    final int MOVING_NODE = 3;
    TokenMetadata tmd = ss.getTokenMetadata();
    tmd.clearUnsafe();
    IPartitioner partitioner = new RandomPartitioner();
    VersionedValue.VersionedValueFactory valueFactory = new VersionedValue.VersionedValueFactory(partitioner);
    IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
    ArrayList<Token> endpointTokens = new ArrayList<Token>();
    ArrayList<Token> keyTokens = new ArrayList<Token>();
    List<InetAddress> hosts = new ArrayList<InetAddress>();
    Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, RING_SIZE);
    Map<Token, List<InetAddress>> expectedEndpoints = new HashMap<Token, List<InetAddress>>();
    for (String table : Schema.instance.getNonSystemTables()) {
        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);
        }
    }
    // node LEAVING_NODE should move to this token
    Token newToken = positionToken(MOVING_NODE);
    // Third node leaves
    ss.onChange(hosts.get(MOVING_NODE), ApplicationState.STATUS, valueFactory.moving(newToken));
    assertTrue(tmd.isMoving(hosts.get(MOVING_NODE)));
    AbstractReplicationStrategy strategy;
    for (String table : Schema.instance.getNonSystemTables()) {
        strategy = getStrategy(table, tmd);
        for (Token token : keyTokens) {
            int replicationFactor = strategy.getReplicationFactor();
            HashSet<InetAddress> actual = new HashSet<InetAddress>(tmd.getWriteEndpoints(token, table, strategy.calculateNaturalEndpoints(token, tmd)));
            HashSet<InetAddress> expected = new HashSet<InetAddress>();
            for (int i = 0; i < replicationFactor; i++) {
                expected.add(expectedEndpoints.get(token).get(i));
            }
            assertEquals("mismatched endpoint sets", expected, actual);
        }
    }
    // moving endpoint back to the normal state
    ss.onChange(hosts.get(MOVING_NODE), ApplicationState.STATUS, valueFactory.normal(newToken));
    ss.setPartitionerUnsafe(oldPartitioner);
}

Example 12 with AbstractReplicationStrategy

use of org.apache.cassandra.locator.AbstractReplicationStrategy in project eiger by wlloyd.

the class LeaveAndBootstrapTest method testSimultaneousMove.

/**
     * Test pending ranges and write endpoints when multiple nodes are on the move
     * simultaneously
     */
@Test
public void testSimultaneousMove() throws UnknownHostException, ConfigurationException {
    StorageService ss = StorageService.instance;
    final int RING_SIZE = 10;
    TokenMetadata tmd = ss.getTokenMetadata();
    tmd.clearUnsafe();
    IPartitioner partitioner = new RandomPartitioner();
    VersionedValue.VersionedValueFactory valueFactory = new VersionedValue.VersionedValueFactory(partitioner);
    IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
    ArrayList<Token> endpointTokens = new ArrayList<Token>();
    ArrayList<Token> keyTokens = new ArrayList<Token>();
    List<InetAddress> hosts = new ArrayList<InetAddress>();
    // create a ring or 10 nodes
    Util.createInitialRing(ss, partitioner, endpointTokens, keyTokens, hosts, 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(endpointTokens.get(leaving)));
    // boot two new nodes with keyTokens.get(5) and keyTokens.get(7)
    InetAddress boot1 = InetAddress.getByName("127.0.1.1");
    ss.onChange(boot1, ApplicationState.STATUS, valueFactory.bootstrapping(keyTokens.get(5)));
    InetAddress boot2 = InetAddress.getByName("127.0.1.2");
    ss.onChange(boot2, ApplicationState.STATUS, valueFactory.bootstrapping(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> tableStrategyMap = new HashMap<String, AbstractReplicationStrategy>();
    for (int i = 1; i <= 4; i++) {
        tableStrategyMap.put("Keyspace" + i, getStrategy("Keyspace" + 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"));
    for (Map.Entry<String, AbstractReplicationStrategy> tableStrategy : tableStrategyMap.entrySet()) {
        String table = tableStrategy.getKey();
        AbstractReplicationStrategy strategy = tableStrategy.getValue();
        for (int i = 0; i < keyTokens.size(); i++) {
            endpoints = tmd.getWriteEndpoints(keyTokens.get(i), table, strategy.getNaturalEndpoints(keyTokens.get(i)));
            assertTrue(expectedEndpoints.get(table).get(keyTokens.get(i)).size() == endpoints.size());
            assertTrue(expectedEndpoints.get(table).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), table, strategy.getNaturalEndpoints(keyTokens.get(i)));
            assertTrue(endpoints.size() == 3);
            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), table, strategy.getNaturalEndpoints(keyTokens.get(3)));
        assertTrue(endpoints.size() == 5);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(4)));
        assertTrue(endpoints.size() == 6);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(5)));
        assertTrue(endpoints.size() == 7);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(6)));
        assertTrue(endpoints.size() == 6);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(7)));
        assertTrue(endpoints.size() == 6);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(8)));
        assertTrue(endpoints.size() == 4);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(9)));
        assertTrue(endpoints.size() == 3);
        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(endpointTokens.get(LEAVING[0]), Gossiper.computeExpireTime()));
    ss.onChange(hosts.get(LEAVING[2]), ApplicationState.STATUS, valueFactory.left(endpointTokens.get(LEAVING[2]), Gossiper.computeExpireTime()));
    ss.onChange(boot1, ApplicationState.STATUS, valueFactory.normal(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"));
    for (Map.Entry<String, AbstractReplicationStrategy> tableStrategy : tableStrategyMap.entrySet()) {
        String table = tableStrategy.getKey();
        AbstractReplicationStrategy strategy = tableStrategy.getValue();
        for (int i = 0; i < keyTokens.size(); i++) {
            endpoints = tmd.getWriteEndpoints(keyTokens.get(i), table, strategy.getNaturalEndpoints(keyTokens.get(i)));
            assertTrue(expectedEndpoints.get(table).get(keyTokens.get(i)).size() == endpoints.size());
            assertTrue(expectedEndpoints.get(table).get(keyTokens.get(i)).containsAll(endpoints));
        }
        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), table, strategy.getNaturalEndpoints(keyTokens.get(i)));
            assertTrue(endpoints.size() == 3);
            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), table, strategy.getNaturalEndpoints(keyTokens.get(3)));
        assertTrue(endpoints.size() == 3);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(4)));
        assertTrue(endpoints.size() == 3);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(5)));
        assertTrue(endpoints.size() == 5);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(6)));
        assertTrue(endpoints.size() == 5);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(7)));
        assertTrue(endpoints.size() == 5);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(8)));
        assertTrue(endpoints.size() == 3);
        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), table, strategy.getNaturalEndpoints(keyTokens.get(9)));
        assertTrue(endpoints.size() == 3);
        assertTrue(endpoints.contains(hosts.get(0)));
        assertTrue(endpoints.contains(hosts.get(1)));
        assertTrue(endpoints.contains(hosts.get(2)));
    }
    ss.setPartitionerUnsafe(oldPartitioner);
}

Example 13 with AbstractReplicationStrategy

use of org.apache.cassandra.locator.AbstractReplicationStrategy in project cassandra by apache.

the class ActiveRepairServiceTest method testGetNeighborsTimesTwo.

@Test
public void testGetNeighborsTimesTwo() throws Throwable {
    TokenMetadata tmd = StorageService.instance.getTokenMetadata();
    // generate rf*2 nodes, and ensure that only neighbors specified by the ARS are returned
    addTokens(2 * Keyspace.open(KEYSPACE5).getReplicationStrategy().getReplicationFactor());
    AbstractReplicationStrategy ars = Keyspace.open(KEYSPACE5).getReplicationStrategy();
    Set<InetAddress> expected = new HashSet<>();
    for (Range<Token> replicaRange : ars.getAddressRanges().get(FBUtilities.getBroadcastAddress())) {
        expected.addAll(ars.getRangeAddresses(tmd.cloneOnlyTokenMap()).get(replicaRange));
    }
    expected.remove(FBUtilities.getBroadcastAddress());
    Collection<Range<Token>> ranges = StorageService.instance.getLocalRanges(KEYSPACE5);
    Set<InetAddress> neighbors = new HashSet<>();
    for (Range<Token> range : ranges) {
        neighbors.addAll(ActiveRepairService.getNeighbors(KEYSPACE5, ranges, range, null, null));
    }
    assertEquals(expected, neighbors);
}

Example 14 with AbstractReplicationStrategy

use of org.apache.cassandra.locator.AbstractReplicationStrategy in project cassandra by apache.

the class MoveTest method testSimultaneousMove.

/*
     * Test 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();
    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[] MOVING = new int[] { 6, 8, 9 };
    Map<Integer, Token> newTokens = new HashMap<Integer, Token>();
    for (int movingIndex : MOVING) {
        Token newToken = positionToken(movingIndex);
        ss.onChange(hosts.get(movingIndex), ApplicationState.STATUS, valueFactory.moving(newToken));
        // storing token associated with a node index
        newTokens.put(movingIndex, newToken);
    }
    Collection<InetAddress> endpoints;
    tmd = tmd.cloneAfterAllSettled();
    ss.setTokenMetadataUnsafe(tmd);
    // 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))));
    PendingRangeCalculatorService.instance.blockUntilFinished();
    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))));
    PendingRangeCalculatorService.instance.blockUntilFinished();
    // 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("MoveTestKeyspace" + i, getStrategy("MoveTestKeyspace" + i, tmd));
    }
    /**
        *  Keyspace1 & Keyspace2 RF=1
        *  {
        *      /127.0.0.1=[(97,0]],
        *      /127.0.0.2=[(0,10]],
        *      /127.0.0.3=[(10,20]],
        *      /127.0.0.4=[(20,30]],
        *      /127.0.0.5=[(30,40]],
        *      /127.0.0.6=[(40,50]],
        *      /127.0.0.7=[(50,67]],
        *      /127.0.0.8=[(67,70]],
        *      /127.0.0.9=[(70,87]],
        *      /127.0.0.10=[(87,97]]
        *  }
        */
    Multimap<InetAddress, Range<Token>> keyspace1ranges = keyspaceStrategyMap.get(Simple_RF1_KeyspaceName).getAddressRanges();
    Collection<Range<Token>> ranges1 = keyspace1ranges.get(InetAddress.getByName("127.0.0.1"));
    assertEquals(1, collectionSize(ranges1));
    assertEquals(generateRange(97, 0), ranges1.iterator().next());
    Collection<Range<Token>> ranges2 = keyspace1ranges.get(InetAddress.getByName("127.0.0.2"));
    assertEquals(1, collectionSize(ranges2));
    assertEquals(generateRange(0, 10), ranges2.iterator().next());
    Collection<Range<Token>> ranges3 = keyspace1ranges.get(InetAddress.getByName("127.0.0.3"));
    assertEquals(1, collectionSize(ranges3));
    assertEquals(generateRange(10, 20), ranges3.iterator().next());
    Collection<Range<Token>> ranges4 = keyspace1ranges.get(InetAddress.getByName("127.0.0.4"));
    assertEquals(1, collectionSize(ranges4));
    assertEquals(generateRange(20, 30), ranges4.iterator().next());
    Collection<Range<Token>> ranges5 = keyspace1ranges.get(InetAddress.getByName("127.0.0.5"));
    assertEquals(1, collectionSize(ranges5));
    assertEquals(generateRange(30, 40), ranges5.iterator().next());
    Collection<Range<Token>> ranges6 = keyspace1ranges.get(InetAddress.getByName("127.0.0.6"));
    assertEquals(1, collectionSize(ranges6));
    assertEquals(generateRange(40, 50), ranges6.iterator().next());
    Collection<Range<Token>> ranges7 = keyspace1ranges.get(InetAddress.getByName("127.0.0.7"));
    assertEquals(1, collectionSize(ranges7));
    assertEquals(generateRange(50, 67), ranges7.iterator().next());
    Collection<Range<Token>> ranges8 = keyspace1ranges.get(InetAddress.getByName("127.0.0.8"));
    assertEquals(1, collectionSize(ranges8));
    assertEquals(generateRange(67, 70), ranges8.iterator().next());
    Collection<Range<Token>> ranges9 = keyspace1ranges.get(InetAddress.getByName("127.0.0.9"));
    assertEquals(1, collectionSize(ranges9));
    assertEquals(generateRange(70, 87), ranges9.iterator().next());
    Collection<Range<Token>> ranges10 = keyspace1ranges.get(InetAddress.getByName("127.0.0.10"));
    assertEquals(1, collectionSize(ranges10));
    assertEquals(generateRange(87, 97), ranges10.iterator().next());
    /**
        * Keyspace3 RF=5
        * {
        *      /127.0.0.1=[(97,0], (70,87], (50,67], (87,97], (67,70]],
        *      /127.0.0.2=[(97,0], (70,87], (87,97], (0,10], (67,70]],
        *      /127.0.0.3=[(97,0], (70,87], (87,97], (0,10], (10,20]],
        *      /127.0.0.4=[(97,0], (20,30], (87,97], (0,10], (10,20]],
        *      /127.0.0.5=[(97,0], (30,40], (20,30], (0,10], (10,20]],
        *      /127.0.0.6=[(40,50], (30,40], (20,30], (0,10], (10,20]],
        *      /127.0.0.7=[(40,50], (30,40], (50,67], (20,30], (10,20]],
        *      /127.0.0.8=[(40,50], (30,40], (50,67], (20,30], (67,70]],
        *      /127.0.0.9=[(40,50], (70,87], (30,40], (50,67], (67,70]],
        *      /127.0.0.10=[(40,50], (70,87], (50,67], (87,97], (67,70]]
        * }
        */
    Multimap<InetAddress, Range<Token>> keyspace3ranges = keyspaceStrategyMap.get(KEYSPACE3).getAddressRanges();
    ranges1 = keyspace3ranges.get(InetAddress.getByName("127.0.0.1"));
    assertEquals(collectionSize(ranges1), 5);
    assertTrue(ranges1.equals(generateRanges(97, 0, 70, 87, 50, 67, 87, 97, 67, 70)));
    ranges2 = keyspace3ranges.get(InetAddress.getByName("127.0.0.2"));
    assertEquals(collectionSize(ranges2), 5);
    assertTrue(ranges2.equals(generateRanges(97, 0, 70, 87, 87, 97, 0, 10, 67, 70)));
    ranges3 = keyspace3ranges.get(InetAddress.getByName("127.0.0.3"));
    assertEquals(collectionSize(ranges3), 5);
    assertTrue(ranges3.equals(generateRanges(97, 0, 70, 87, 87, 97, 0, 10, 10, 20)));
    ranges4 = keyspace3ranges.get(InetAddress.getByName("127.0.0.4"));
    assertEquals(collectionSize(ranges4), 5);
    assertTrue(ranges4.equals(generateRanges(97, 0, 20, 30, 87, 97, 0, 10, 10, 20)));
    ranges5 = keyspace3ranges.get(InetAddress.getByName("127.0.0.5"));
    assertEquals(collectionSize(ranges5), 5);
    assertTrue(ranges5.equals(generateRanges(97, 0, 30, 40, 20, 30, 0, 10, 10, 20)));
    ranges6 = keyspace3ranges.get(InetAddress.getByName("127.0.0.6"));
    assertEquals(collectionSize(ranges6), 5);
    assertTrue(ranges6.equals(generateRanges(40, 50, 30, 40, 20, 30, 0, 10, 10, 20)));
    ranges7 = keyspace3ranges.get(InetAddress.getByName("127.0.0.7"));
    assertEquals(collectionSize(ranges7), 5);
    assertTrue(ranges7.equals(generateRanges(40, 50, 30, 40, 50, 67, 20, 30, 10, 20)));
    ranges8 = keyspace3ranges.get(InetAddress.getByName("127.0.0.8"));
    assertEquals(collectionSize(ranges8), 5);
    assertTrue(ranges8.equals(generateRanges(40, 50, 30, 40, 50, 67, 20, 30, 67, 70)));
    ranges9 = keyspace3ranges.get(InetAddress.getByName("127.0.0.9"));
    assertEquals(collectionSize(ranges9), 5);
    assertTrue(ranges9.equals(generateRanges(40, 50, 70, 87, 30, 40, 50, 67, 67, 70)));
    ranges10 = keyspace3ranges.get(InetAddress.getByName("127.0.0.10"));
    assertEquals(collectionSize(ranges10), 5);
    assertTrue(ranges10.equals(generateRanges(40, 50, 70, 87, 50, 67, 87, 97, 67, 70)));
    /**
         * Keyspace4 RF=3
         * {
         *      /127.0.0.1=[(97,0], (70,87], (87,97]],
         *      /127.0.0.2=[(97,0], (87,97], (0,10]],
         *      /127.0.0.3=[(97,0], (0,10], (10,20]],
         *      /127.0.0.4=[(20,30], (0,10], (10,20]],
         *      /127.0.0.5=[(30,40], (20,30], (10,20]],
         *      /127.0.0.6=[(40,50], (30,40], (20,30]],
         *      /127.0.0.7=[(40,50], (30,40], (50,67]],
         *      /127.0.0.8=[(40,50], (50,67], (67,70]],
         *      /127.0.0.9=[(70,87], (50,67], (67,70]],
         *      /127.0.0.10=[(70,87], (87,97], (67,70]]
         *  }
         */
    Multimap<InetAddress, Range<Token>> keyspace4ranges = keyspaceStrategyMap.get(Simple_RF3_KeyspaceName).getAddressRanges();
    ranges1 = keyspace4ranges.get(InetAddress.getByName("127.0.0.1"));
    assertEquals(collectionSize(ranges1), 3);
    assertTrue(ranges1.equals(generateRanges(97, 0, 70, 87, 87, 97)));
    ranges2 = keyspace4ranges.get(InetAddress.getByName("127.0.0.2"));
    assertEquals(collectionSize(ranges2), 3);
    assertTrue(ranges2.equals(generateRanges(97, 0, 87, 97, 0, 10)));
    ranges3 = keyspace4ranges.get(InetAddress.getByName("127.0.0.3"));
    assertEquals(collectionSize(ranges3), 3);
    assertTrue(ranges3.equals(generateRanges(97, 0, 0, 10, 10, 20)));
    ranges4 = keyspace4ranges.get(InetAddress.getByName("127.0.0.4"));
    assertEquals(collectionSize(ranges4), 3);
    assertTrue(ranges4.equals(generateRanges(20, 30, 0, 10, 10, 20)));
    ranges5 = keyspace4ranges.get(InetAddress.getByName("127.0.0.5"));
    assertEquals(collectionSize(ranges5), 3);
    assertTrue(ranges5.equals(generateRanges(30, 40, 20, 30, 10, 20)));
    ranges6 = keyspace4ranges.get(InetAddress.getByName("127.0.0.6"));
    assertEquals(collectionSize(ranges6), 3);
    assertTrue(ranges6.equals(generateRanges(40, 50, 30, 40, 20, 30)));
    ranges7 = keyspace4ranges.get(InetAddress.getByName("127.0.0.7"));
    assertEquals(collectionSize(ranges7), 3);
    assertTrue(ranges7.equals(generateRanges(40, 50, 30, 40, 50, 67)));
    ranges8 = keyspace4ranges.get(InetAddress.getByName("127.0.0.8"));
    assertEquals(collectionSize(ranges8), 3);
    assertTrue(ranges8.equals(generateRanges(40, 50, 50, 67, 67, 70)));
    ranges9 = keyspace4ranges.get(InetAddress.getByName("127.0.0.9"));
    assertEquals(collectionSize(ranges9), 3);
    assertTrue(ranges9.equals(generateRanges(70, 87, 50, 67, 67, 70)));
    ranges10 = keyspace4ranges.get(InetAddress.getByName("127.0.0.10"));
    assertEquals(collectionSize(ranges10), 3);
    assertTrue(ranges10.equals(generateRanges(70, 87, 87, 97, 67, 70)));
    // pre-calculate the results.
    Map<String, Multimap<Token, InetAddress>> expectedEndpoints = new HashMap<String, Multimap<Token, InetAddress>>();
    expectedEndpoints.put(Simple_RF1_KeyspaceName, HashMultimap.<Token, InetAddress>create());
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("5"), makeAddrs("127.0.0.2"));
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("15"), makeAddrs("127.0.0.3"));
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("25"), makeAddrs("127.0.0.4"));
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("35"), makeAddrs("127.0.0.5"));
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("45"), makeAddrs("127.0.0.6"));
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("55"), makeAddrs("127.0.0.7", "127.0.1.1"));
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.7"));
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.1.2"));
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.9"));
    expectedEndpoints.get(Simple_RF1_KeyspaceName).putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.10"));
    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", "127.0.1.1"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.7"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.1.2"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.9"));
    expectedEndpoints.get(KEYSPACE2).putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.10"));
    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"));
    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", "127.0.1.1"));
    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", "127.0.1.1", "127.0.1.2"));
    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", "127.0.1.1", "127.0.1.2"));
    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", "127.0.1.1", "127.0.1.2"));
    expectedEndpoints.get(KEYSPACE3).putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.1.2"));
    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"));
    expectedEndpoints.get(KEYSPACE3).putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.0.3"));
    expectedEndpoints.get(KEYSPACE3).putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.10", "127.0.0.1", "127.0.0.2", "127.0.0.3", "127.0.0.4"));
    expectedEndpoints.put(Simple_RF3_KeyspaceName, HashMultimap.<Token, InetAddress>create());
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("5"), makeAddrs("127.0.0.2", "127.0.0.3", "127.0.0.4"));
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("15"), makeAddrs("127.0.0.3", "127.0.0.4", "127.0.0.5"));
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("25"), makeAddrs("127.0.0.4", "127.0.0.5", "127.0.0.6"));
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("35"), makeAddrs("127.0.0.5", "127.0.0.6", "127.0.0.7", "127.0.1.1"));
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("45"), makeAddrs("127.0.0.6", "127.0.0.7", "127.0.0.8", "127.0.1.1"));
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("55"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.1.1", "127.0.1.2"));
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("65"), makeAddrs("127.0.0.7", "127.0.0.8", "127.0.0.9", "127.0.1.2"));
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("75"), makeAddrs("127.0.0.9", "127.0.0.10", "127.0.0.1", "127.0.1.2"));
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("85"), makeAddrs("127.0.0.9", "127.0.0.10", "127.0.0.1"));
    expectedEndpoints.get(Simple_RF3_KeyspaceName).putAll(new BigIntegerToken("95"), makeAddrs("127.0.0.10", "127.0.0.1", "127.0.0.2"));
    for (Map.Entry<String, AbstractReplicationStrategy> keyspaceStrategy : keyspaceStrategyMap.entrySet()) {
        String keyspaceName = keyspaceStrategy.getKey();
        AbstractReplicationStrategy strategy = keyspaceStrategy.getValue();
        for (Token token : keyTokens) {
            endpoints = tmd.getWriteEndpoints(token, keyspaceName, strategy.getNaturalEndpoints(token));
            assertEquals(expectedEndpoints.get(keyspaceName).get(token).size(), endpoints.size());
            assertTrue(expectedEndpoints.get(keyspaceName).get(token).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 and boot1
        endpoints = tmd.getWriteEndpoints(keyTokens.get(3), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(3)));
        assertEquals(4, endpoints.size());
        assertTrue(endpoints.contains(hosts.get(4)));
        assertTrue(endpoints.contains(hosts.get(5)));
        assertTrue(endpoints.contains(hosts.get(6)));
        assertTrue(endpoints.contains(boot1));
        // token 45 should go to nodes 5, 6, 7 boot1
        endpoints = tmd.getWriteEndpoints(keyTokens.get(4), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(4)));
        assertEquals(4, endpoints.size());
        assertTrue(endpoints.contains(hosts.get(5)));
        assertTrue(endpoints.contains(hosts.get(6)));
        assertTrue(endpoints.contains(hosts.get(7)));
        assertTrue(endpoints.contains(boot1));
        // token 55 should go to nodes 6, 7, 8 boot1 and boot2
        endpoints = tmd.getWriteEndpoints(keyTokens.get(5), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(5)));
        assertEquals(5, endpoints.size());
        assertTrue(endpoints.contains(hosts.get(6)));
        assertTrue(endpoints.contains(hosts.get(7)));
        assertTrue(endpoints.contains(hosts.get(8)));
        assertTrue(endpoints.contains(boot1));
        assertTrue(endpoints.contains(boot2));
        // token 65 should go to nodes 6, 7, 8 and boot2
        endpoints = tmd.getWriteEndpoints(keyTokens.get(6), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(6)));
        assertEquals(4, endpoints.size());
        assertTrue(endpoints.contains(hosts.get(6)));
        assertTrue(endpoints.contains(hosts.get(7)));
        assertTrue(endpoints.contains(hosts.get(8)));
        assertTrue(endpoints.contains(boot2));
        // token 75 should to go nodes 8, 9, 0 and boot2
        endpoints = tmd.getWriteEndpoints(keyTokens.get(7), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(7)));
        assertEquals(4, endpoints.size());
        assertTrue(endpoints.contains(hosts.get(8)));
        assertTrue(endpoints.contains(hosts.get(9)));
        assertTrue(endpoints.contains(hosts.get(0)));
        assertTrue(endpoints.contains(boot2));
        // token 85 should go to nodes 8, 9 and 0
        endpoints = tmd.getWriteEndpoints(keyTokens.get(8), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(8)));
        assertEquals(3, endpoints.size());
        assertTrue(endpoints.contains(hosts.get(8)));
        assertTrue(endpoints.contains(hosts.get(9)));
        assertTrue(endpoints.contains(hosts.get(0)));
        // token 95 should go to nodes 9, 0 and 1
        endpoints = tmd.getWriteEndpoints(keyTokens.get(9), keyspaceName, strategy.getNaturalEndpoints(keyTokens.get(9)));
        assertEquals(3, endpoints.size());
        assertTrue(endpoints.contains(hosts.get(9)));
        assertTrue(endpoints.contains(hosts.get(0)));
        assertTrue(endpoints.contains(hosts.get(1)));
    }
    // all moving nodes are back to the normal state
    for (Integer movingIndex : MOVING) {
        ss.onChange(hosts.get(movingIndex), ApplicationState.STATUS, valueFactory.normal(Collections.singleton(newTokens.get(movingIndex))));
    }
}

Example 15 with AbstractReplicationStrategy

use of org.apache.cassandra.locator.AbstractReplicationStrategy in project cassandra by apache.

the class ViewUtils method getViewNaturalEndpoint.

/**
     * Calculate the natural endpoint for the view.
     *
     * The view natural endpoint is the endpoint which has the same cardinality as this node in the replication factor.
     * The cardinality is the number at which this node would store a piece of data, given the change in replication
     * factor. If the keyspace's replication strategy is a NetworkTopologyStrategy, we filter the ring to contain only
     * nodes in the local datacenter when calculating cardinality.
     *
     * For example, if we have the following ring:
     *   {@code A, T1 -> B, T2 -> C, T3 -> A}
     *
     * For the token T1, at RF=1, A would be included, so A's cardinality for T1 is 1. For the token T1, at RF=2, B would
     * be included, so B's cardinality for token T1 is 2. For token T3, at RF = 2, A would be included, so A's cardinality
     * for T3 is 2.
     *
     * For a view whose base token is T1 and whose view token is T3, the pairings between the nodes would be:
     *  A writes to C (A's cardinality is 1 for T1, and C's cardinality is 1 for T3)
     *  B writes to A (B's cardinality is 2 for T1, and A's cardinality is 2 for T3)
     *  C writes to B (C's cardinality is 3 for T1, and B's cardinality is 3 for T3)
     *
     * @return Optional.empty() if this method is called using a base token which does not belong to this replica
     */
public static Optional<InetAddress> getViewNaturalEndpoint(String keyspaceName, Token baseToken, Token viewToken) {
    AbstractReplicationStrategy replicationStrategy = Keyspace.open(keyspaceName).getReplicationStrategy();
    String localDataCenter = DatabaseDescriptor.getEndpointSnitch().getDatacenter(FBUtilities.getBroadcastAddress());
    List<InetAddress> baseEndpoints = new ArrayList<>();
    List<InetAddress> viewEndpoints = new ArrayList<>();
    for (InetAddress baseEndpoint : replicationStrategy.getNaturalEndpoints(baseToken)) {
        // An endpoint is local if we're not using Net
        if (!(replicationStrategy instanceof NetworkTopologyStrategy) || DatabaseDescriptor.getEndpointSnitch().getDatacenter(baseEndpoint).equals(localDataCenter))
            baseEndpoints.add(baseEndpoint);
    }
    for (InetAddress viewEndpoint : replicationStrategy.getNaturalEndpoints(viewToken)) {
        // If we are a base endpoint which is also a view replica, we use ourselves as our view replica
        if (viewEndpoint.equals(FBUtilities.getBroadcastAddress()))
            return Optional.of(viewEndpoint);
        // and throw off the counts otherwise.
        if (baseEndpoints.contains(viewEndpoint))
            baseEndpoints.remove(viewEndpoint);
        else if (!(replicationStrategy instanceof NetworkTopologyStrategy) || DatabaseDescriptor.getEndpointSnitch().getDatacenter(viewEndpoint).equals(localDataCenter))
            viewEndpoints.add(viewEndpoint);
    }
    // number of replicas for all of the tokens in the ring.
    assert baseEndpoints.size() == viewEndpoints.size() : "Replication strategy should have the same number of endpoints for the base and the view";
    int baseIdx = baseEndpoints.indexOf(FBUtilities.getBroadcastAddress());
    if (baseIdx < 0)
        //This node is not a base replica of this key, so we return empty
        return Optional.empty();
    return Optional.of(viewEndpoints.get(baseIdx));
}