Examples with IPartitioner org.apache.cassandra.dht.IPartitioner used on opensource projects

Example 1 with IPartitioner

use of org.apache.cassandra.dht.IPartitioner in project cassandra by apache.

the class DatabaseDescriptor method setPartitionerUnsafe.

/* For tests ONLY, don't use otherwise or all hell will break loose. Tests should restore value at the end. */
public static IPartitioner setPartitionerUnsafe(IPartitioner newPartitioner) {
    IPartitioner old = partitioner;
    partitioner = newPartitioner;
    return old;
}

Example 2 with IPartitioner

use of org.apache.cassandra.dht.IPartitioner in project cassandra by apache.

the class LegacySSTableTest method streamLegacyTable.

private void streamLegacyTable(String tablePattern, String legacyVersion, String compactNameSuffix) throws Exception {
    String table = String.format(tablePattern, legacyVersion, compactNameSuffix);
    SSTableReader sstable = SSTableReader.open(getDescriptor(legacyVersion, table));
    IPartitioner p = sstable.getPartitioner();
    List<Range<Token>> ranges = new ArrayList<>();
    ranges.add(new Range<>(p.getMinimumToken(), p.getToken(ByteBufferUtil.bytes("100"))));
    ranges.add(new Range<>(p.getToken(ByteBufferUtil.bytes("100")), p.getMinimumToken()));
    ArrayList<StreamSession.SSTableStreamingSections> details = new ArrayList<>();
    details.add(new StreamSession.SSTableStreamingSections(sstable.ref(), sstable.getPositionsForRanges(ranges), sstable.estimatedKeysForRanges(ranges), sstable.getSSTableMetadata().repairedAt));
    new StreamPlan("LegacyStreamingTest").transferFiles(FBUtilities.getBroadcastAddress(), details).execute().get();
}

Example 3 with IPartitioner

use of org.apache.cassandra.dht.IPartitioner in project cassandra by apache.

the class IndexSummaryTest method testAddEmptyKey.

@Test
public void testAddEmptyKey() throws Exception {
    IPartitioner p = new RandomPartitioner();
    try (IndexSummaryBuilder builder = new IndexSummaryBuilder(1, 1, BASE_SAMPLING_LEVEL)) {
        builder.maybeAddEntry(p.decorateKey(ByteBufferUtil.EMPTY_BYTE_BUFFER), 0);
        IndexSummary summary = builder.build(p);
        assertEquals(1, summary.size());
        assertEquals(0, summary.getPosition(0));
        assertArrayEquals(new byte[0], summary.getKey(0));
        DataOutputBuffer dos = new DataOutputBuffer();
        IndexSummary.serializer.serialize(summary, dos);
        DataInputStream dis = new DataInputStream(new ByteArrayInputStream(dos.toByteArray()));
        IndexSummary loaded = IndexSummary.serializer.deserialize(dis, p, 1, 1);
        assertEquals(1, loaded.size());
        assertEquals(summary.getPosition(0), loaded.getPosition(0));
        assertArrayEquals(summary.getKey(0), summary.getKey(0));
        summary.close();
        loaded.close();
    }
}

Example 4 with IPartitioner

use of org.apache.cassandra.dht.IPartitioner in project cassandra by apache.

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 {
    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;
        // 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)));
    }
}

Example 5 with IPartitioner

use of org.apache.cassandra.dht.IPartitioner in project cassandra by apache.

the class LeaveAndBootstrapTest method testStateJumpToBootstrap.

@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());
}