Package org.apache.cassandra.dht

Examples of org.apache.cassandra.dht.RandomPartitioner

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    @Test
    public void testGetStorageEndPointsDuringBootstrap()
    {
        TokenMetadata tmd = new TokenMetadata();
        IPartitioner partitioner = new RandomPartitioner();
        AbstractReplicationStrategy strategy = new RackUnawareStrategy(tmd, partitioner, 3, 7000);

        Token[] endPointTokens = new Token[5];
        Token[] keyTokens = new Token[5];
       
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    @Before
    public void setup() throws IOException
    {
        tmd.clearUnsafe();
        IPartitioner partitioner = new RandomPartitioner();

        oldPartitioner = ss.setPartitionerUnsafe(partitioner);

        endpointTokens = new ArrayList<Token>();
        keyTokens = new ArrayList<Token>();
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        InetAddress source2 = InetAddress.getByAddress(address2);

        List<InetAddress> sources = new ArrayList<InetAddress>();
        sources.add(source1);
        sources.add(source2);
        RangeSliceResponseResolver resolver = new RangeSliceResponseResolver("keyspace", sources, new RandomPartitioner());

        Collection responses = new LinkedBlockingQueue<Message>();
        responses.add(new Message(source1, StageManager.RESPONSE_STAGE, StorageService.Verb.READ_RESPONSE, messageBody));
        responses.add(new Message(source2, StageManager.RESPONSE_STAGE, StorageService.Verb.READ_RESPONSE, messageBody));
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        final int RING_SIZE = 5;
        final int LEAVING_NODE = 2;

        TokenMetadata tmd = ss.getTokenMetadata();
        tmd.clearUnsafe();
        IPartitioner partitioner = new RandomPartitioner();
        AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);

        IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
        Map<String, AbstractReplicationStrategy> oldStrategies = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));

        ArrayList<Token> endPointTokens = new ArrayList<Token>();
        ArrayList<Token> keyTokens = new ArrayList<Token>();
        List<InetAddress> hosts = new ArrayList<InetAddress>();

        createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, RING_SIZE);

        final Map<String, List<Range>> deadNodesRanges = new HashMap<String, List<Range>>();
        for (String table : DatabaseDescriptor.getNonSystemTables())
        {
            List<Range> list = new ArrayList<Range>();
            list.addAll(testStrategy.getAddressRanges(table).get(hosts.get(LEAVING_NODE)));
            Collections.sort(list);
            deadNodesRanges.put(table, list);
        }
       
        // Third node leaves
        ss.onChange(hosts.get(LEAVING_NODE), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(LEAVING_NODE))));

        // check that it is correctly marked as leaving in tmd
        assertTrue(tmd.isLeaving(hosts.get(LEAVING_NODE)));

        // check that pending ranges are correct (primary range should go to 1st node, first
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    {
        StorageService ss = StorageService.instance;
        final int RING_SIZE = 10;
        TokenMetadata tmd = ss.getTokenMetadata();
        tmd.clearUnsafe();
        IPartitioner partitioner = new RandomPartitioner();
        AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);

        IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
        Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));

        ArrayList<Token> endPointTokens = new ArrayList<Token>();
        ArrayList<Token> keyTokens = new ArrayList<Token>();
        List<InetAddress> hosts = new ArrayList<InetAddress>();

        // create a ring or 10 nodes
        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), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(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, StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(5))));
        InetAddress boot2 = InetAddress.getByName("127.0.1.2");
        ss.onChange(boot2, StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(7))));

        Collection<InetAddress> endPoints = null;

        // 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 (String table : DatabaseDescriptor.getNonSystemTables())
        {
            for (int i = 0; i < keyTokens.size(); i++)
            {
                endPoints = testStrategy.getWriteEndpoints(keyTokens.get(i), table, testStrategy.getNaturalEndpoints(keyTokens.get(i), table));
                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 (DatabaseDescriptor.getReplicationFactor(table) != 3)
                continue;
            // tokens 5, 15 and 25 should go three nodes
            for (int i=0; i<3; ++i)
            {
                endPoints = testStrategy.getWriteEndpoints(keyTokens.get(i), table, testStrategy.getNaturalEndpoints(keyTokens.get(i), table));
                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 = testStrategy.getWriteEndpoints(keyTokens.get(3), table, testStrategy.getNaturalEndpoints(keyTokens.get(3), table));
            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 = testStrategy.getWriteEndpoints(keyTokens.get(4), table, testStrategy.getNaturalEndpoints(keyTokens.get(4), table));
            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 = testStrategy.getWriteEndpoints(keyTokens.get(5), table, testStrategy.getNaturalEndpoints(keyTokens.get(5), table));
            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 = testStrategy.getWriteEndpoints(keyTokens.get(6), table, testStrategy.getNaturalEndpoints(keyTokens.get(6), table));
            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 = testStrategy.getWriteEndpoints(keyTokens.get(7), table, testStrategy.getNaturalEndpoints(keyTokens.get(7), table));
            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 = testStrategy.getWriteEndpoints(keyTokens.get(8), table, testStrategy.getNaturalEndpoints(keyTokens.get(8), table));
            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 = testStrategy.getWriteEndpoints(keyTokens.get(9), table, testStrategy.getNaturalEndpoints(keyTokens.get(9), table));
            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]), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(LEAVING[0]))));
        ss.onChange(hosts.get(LEAVING[2]), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(LEAVING[2]))));
        ss.onChange(boot1, StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(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"));
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    public void testStateJumpToBootstrap() throws UnknownHostException
    {
        StorageService ss = StorageService.instance;
        TokenMetadata tmd = ss.getTokenMetadata();
        tmd.clearUnsafe();
        IPartitioner partitioner = new RandomPartitioner();
        AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);

        IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
        Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));

        ArrayList<Token> endPointTokens = new ArrayList<Token>();
        ArrayList<Token> keyTokens = new ArrayList<Token>();
        List<InetAddress> hosts = new ArrayList<InetAddress>();

        // create a ring or 5 nodes
        createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, 5);

        // node 2 leaves
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(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
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(4))));

        assertFalse(tmd.isMember(hosts.get(2)));
        assertFalse(tmd.isLeaving(hosts.get(2)));
        assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(4)).equals(hosts.get(2)));

        // Bootstrap node hosts.get(3) to keyTokens.get(1)
        ss.onChange(hosts.get(3), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));

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

        // Bootstrap node hosts.get(2) further to keyTokens.get(3)
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(3))));

        assertFalse(tmd.isMember(hosts.get(2)));
        assertFalse(tmd.isLeaving(hosts.get(2)));
        assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(3)).equals(hosts.get(2)));
        assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(4)) == null);
        assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(1)).equals(hosts.get(3)));

        // Go to normal again for both nodes
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(3))));
        ss.onChange(hosts.get(3), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(2))));

        assertTrue(tmd.isMember(hosts.get(2)));
        assertFalse(tmd.isLeaving(hosts.get(2)));
        assertTrue(tmd.getToken(hosts.get(2)).equals(keyTokens.get(3)));
        assertTrue(tmd.isMember(hosts.get(3)));
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    public void testStateJumpToNormal() throws UnknownHostException
    {
        StorageService ss = StorageService.instance;
        TokenMetadata tmd = ss.getTokenMetadata();
        tmd.clearUnsafe();
        IPartitioner partitioner = new RandomPartitioner();
        AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);

        IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
        Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));

        ArrayList<Token> endPointTokens = new ArrayList<Token>();
        ArrayList<Token> keyTokens = new ArrayList<Token>();
        List<InetAddress> hosts = new ArrayList<InetAddress>();

        // create a ring or 5 nodes
        createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, 5);

        // node 2 leaves
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(2))));

        assertTrue(tmd.isLeaving(hosts.get(2)));
        assertTrue(tmd.getToken(hosts.get(2)).equals(endPointTokens.get(2)));

        // back to normal
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(2))));

        assertTrue(tmd.getLeavingEndPoints().isEmpty());
        assertTrue(tmd.getToken(hosts.get(2)).equals(keyTokens.get(2)));

        // node 3 goes through leave and left and then jumps to normal
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(2))));
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(2))));
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_NORMAL + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(4))));

        assertTrue(tmd.getBootstrapTokens().isEmpty());
        assertTrue(tmd.getLeavingEndPoints().isEmpty());
        assertTrue(tmd.getToken(hosts.get(2)).equals(keyTokens.get(4)));
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    public void testStateJumpToLeaving() throws UnknownHostException
    {
        StorageService ss = StorageService.instance;
        TokenMetadata tmd = ss.getTokenMetadata();
        tmd.clearUnsafe();
        IPartitioner partitioner = new RandomPartitioner();
        AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);

        IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
        Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));

        ArrayList<Token> endPointTokens = new ArrayList<Token>();
        ArrayList<Token> keyTokens = new ArrayList<Token>();
        List<InetAddress> hosts = new ArrayList<InetAddress>();

        // create a ring or 5 nodes
        createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, 5);

        // node 2 leaves with _different_ token
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(0))));

        assertTrue(tmd.getToken(hosts.get(2)).equals(keyTokens.get(0)));
        assertTrue(tmd.isLeaving(hosts.get(2)));
        assertTrue(tmd.getEndPoint(endPointTokens.get(2)) == null);

        // go to boostrap
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));

        assertFalse(tmd.isLeaving(hosts.get(2)));
        assertTrue(tmd.getBootstrapTokens().size() == 1);
        assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(1)).equals(hosts.get(2)));

        // jump to leaving again
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEAVING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));

        assertTrue(tmd.getEndPoint(keyTokens.get(1)).equals(hosts.get(2)));
        assertTrue(tmd.isLeaving(hosts.get(2)));
        assertTrue(tmd.getBootstrapTokens().isEmpty());

        // go to state left
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));

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

        ss.setPartitionerUnsafe(oldPartitioner);
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    public void testStateJumpToLeft() throws UnknownHostException
    {
        StorageService ss = StorageService.instance;
        TokenMetadata tmd = ss.getTokenMetadata();
        tmd.clearUnsafe();
        IPartitioner partitioner = new RandomPartitioner();
        AbstractReplicationStrategy testStrategy = new RackUnawareStrategy(tmd, null);

        IPartitioner oldPartitioner = ss.setPartitionerUnsafe(partitioner);
        Map<String, AbstractReplicationStrategy> oldStrategy = ss.setReplicationStrategyUnsafe(createReplacements(testStrategy));

        ArrayList<Token> endPointTokens = new ArrayList<Token>();
        ArrayList<Token> keyTokens = new ArrayList<Token>();
        List<InetAddress> hosts = new ArrayList<InetAddress>();

        // create a ring or 5 nodes
        createInitialRing(ss, partitioner, endPointTokens, keyTokens, hosts, 5);

        // node hosts.get(2) goes jumps to left
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(endPointTokens.get(2))));

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

        // node hosts.get(4) goes to bootstrap
        ss.onChange(hosts.get(3), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_BOOTSTRAPPING + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));

        assertFalse(tmd.isMember(hosts.get(3)));
        assertTrue(tmd.getBootstrapTokens().size() == 1);
        assertTrue(tmd.getBootstrapTokens().get(keyTokens.get(1)).equals(hosts.get(3)));

        // and then directly to 'left'
        ss.onChange(hosts.get(2), StorageService.MOVE_STATE, new ApplicationState(StorageService.STATE_LEFT + StorageService.Delimiter + partitioner.getTokenFactory().toString(keyTokens.get(1))));

        assertTrue(tmd.getBootstrapTokens().size() == 0);
        assertFalse(tmd.isMember(hosts.get(2)));
        assertFalse(tmd.isLeaving(hosts.get(2)));
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