Package org.apache.cassandra.dht

Examples of org.apache.cassandra.dht.StringToken

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        AbstractReplicationStrategy strategy = new RackUnawareStrategy(tmd, partitioner, 3);

        List<Token> endPointTokens = new ArrayList<Token>();
        List<Token> keyTokens = new ArrayList<Token>();
        for (int i = 0; i < 5; i++) {
            endPointTokens.add(new StringToken(String.valueOf((char)('a' + i * 2))));
            keyTokens.add(partitioner.getToken(String.valueOf((char)('a' + i * 2 + 1))));
        }
        testGetEndpoints(tmd, strategy, endPointTokens.toArray(new Token[0]), keyTokens.toArray(new Token[0]));
    }
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        AbstractReplicationStrategy strategy = new RackUnawareStrategy(tmd, partitioner, 3);

        List<Token> endPointTokens = new ArrayList<Token>();
        List<Token> keyTokens = new ArrayList<Token>();
        for (int i = 0; i < 5; i++) {
            endPointTokens.add(new StringToken(String.valueOf((char)('a' + i * 2))));
            keyTokens.add(partitioner.getToken(String.valueOf((char)('a' + i * 2 + 1))));
        }
        testGetEndpoints(tmd, strategy, endPointTokens.toArray(new Token[0]), keyTokens.toArray(new Token[0]));
    }
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        }
       
        store.forceBlockingFlush();
        List<String> fileList = new ArrayList<String>();
        List<Range> ranges  = new ArrayList<Range>();
        Range r = new Range(new StringToken("0"), new StringToken("zzzzzz"));
        ranges.add(r);

        boolean result = store.doAntiCompaction(ranges, new EndPoint("127.0.0.1", 9150), fileList);

        assertEquals(true, result); // some keys should have qualified
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    public void testPrimaryRangesWithNetworkTopologyStrategy() throws Exception
    {
        TokenMetadata metadata = StorageService.instance.getTokenMetadata();
        metadata.clearUnsafe();
        // DC1
        metadata.updateNormalToken(new StringToken("A"), InetAddress.getByName("127.0.0.1"));
        metadata.updateNormalToken(new StringToken("C"), InetAddress.getByName("127.0.0.2"));
        // DC2
        metadata.updateNormalToken(new StringToken("B"), InetAddress.getByName("127.0.0.4"));
        metadata.updateNormalToken(new StringToken("D"), InetAddress.getByName("127.0.0.5"));

        Map<String, String> configOptions = new HashMap<String, String>();
        configOptions.put("DC1", "1");
        configOptions.put("DC2", "1");

        Keyspace.clear("Keyspace1");
        KSMetaData meta = KSMetaData.newKeyspace("Keyspace1", "NetworkTopologyStrategy", configOptions, false);
        Schema.instance.setKeyspaceDefinition(meta);

        Collection<Range<Token>> primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.1"));
        assert primaryRanges.size() == 1;
        assert primaryRanges.contains(new Range<Token>(new StringToken("D"), new StringToken("A")));

        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.2"));
        assert primaryRanges.size() == 1;
        assert primaryRanges.contains(new Range<Token>(new StringToken("B"), new StringToken("C")));

        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.4"));
        assert primaryRanges.size() == 1;
        assert primaryRanges.contains(new Range<Token>(new StringToken("A"), new StringToken("B")));

        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.5"));
        assert primaryRanges.size() == 1;
        assert primaryRanges.contains(new Range<Token>(new StringToken("C"), new StringToken("D")));
    }
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    public void testPrimaryRangesWithNetworkTopologyStrategyOneDCOnly() throws Exception
    {
        TokenMetadata metadata = StorageService.instance.getTokenMetadata();
        metadata.clearUnsafe();
        // DC1
        metadata.updateNormalToken(new StringToken("A"), InetAddress.getByName("127.0.0.1"));
        metadata.updateNormalToken(new StringToken("C"), InetAddress.getByName("127.0.0.2"));
        // DC2
        metadata.updateNormalToken(new StringToken("B"), InetAddress.getByName("127.0.0.4"));
        metadata.updateNormalToken(new StringToken("D"), InetAddress.getByName("127.0.0.5"));

        Map<String, String> configOptions = new HashMap<String, String>();
        configOptions.put("DC2", "2");

        Keyspace.clear("Keyspace1");
        KSMetaData meta = KSMetaData.newKeyspace("Keyspace1", "NetworkTopologyStrategy", configOptions, false);
        Schema.instance.setKeyspaceDefinition(meta);

        // endpoints in DC1 should not have primary range
        Collection<Range<Token>> primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.1"));
        assert primaryRanges.isEmpty();

        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.2"));
        assert primaryRanges.isEmpty();

        // endpoints in DC2 should have primary ranges which also cover DC1
        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.4"));
        assert primaryRanges.size() == 2;
        assert primaryRanges.contains(new Range<Token>(new StringToken("D"), new StringToken("A")));
        assert primaryRanges.contains(new Range<Token>(new StringToken("A"), new StringToken("B")));

        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.5"));
        assert primaryRanges.size() == 2;
        assert primaryRanges.contains(new Range<Token>(new StringToken("C"), new StringToken("D")));
        assert primaryRanges.contains(new Range<Token>(new StringToken("B"), new StringToken("C")));
    }
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    {
        TokenMetadata metadata = StorageService.instance.getTokenMetadata();
        metadata.clearUnsafe();
        // DC1
        Multimap<InetAddress, Token> dc1 = HashMultimap.create();
        dc1.put(InetAddress.getByName("127.0.0.1"), new StringToken("A"));
        dc1.put(InetAddress.getByName("127.0.0.1"), new StringToken("E"));
        dc1.put(InetAddress.getByName("127.0.0.1"), new StringToken("H"));
        dc1.put(InetAddress.getByName("127.0.0.2"), new StringToken("C"));
        dc1.put(InetAddress.getByName("127.0.0.2"), new StringToken("I"));
        dc1.put(InetAddress.getByName("127.0.0.2"), new StringToken("J"));
        metadata.updateNormalTokens(dc1);
        // DC2
        Multimap<InetAddress, Token> dc2 = HashMultimap.create();
        dc2.put(InetAddress.getByName("127.0.0.4"), new StringToken("B"));
        dc2.put(InetAddress.getByName("127.0.0.4"), new StringToken("G"));
        dc2.put(InetAddress.getByName("127.0.0.4"), new StringToken("L"));
        dc2.put(InetAddress.getByName("127.0.0.5"), new StringToken("D"));
        dc2.put(InetAddress.getByName("127.0.0.5"), new StringToken("F"));
        dc2.put(InetAddress.getByName("127.0.0.5"), new StringToken("K"));
        metadata.updateNormalTokens(dc2);

        Map<String, String> configOptions = new HashMap<String, String>();
        configOptions.put("DC2", "2");

        Keyspace.clear("Keyspace1");
        KSMetaData meta = KSMetaData.newKeyspace("Keyspace1", "NetworkTopologyStrategy", configOptions, false);
        Schema.instance.setKeyspaceDefinition(meta);

        // endpoints in DC1 should not have primary range
        Collection<Range<Token>> primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.1"));
        assert primaryRanges.isEmpty();

        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.2"));
        assert primaryRanges.isEmpty();

        // endpoints in DC2 should have primary ranges which also cover DC1
        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.4"));
        assert primaryRanges.size() == 4;
        assert primaryRanges.contains(new Range<Token>(new StringToken("A"), new StringToken("B")));
        assert primaryRanges.contains(new Range<Token>(new StringToken("F"), new StringToken("G")));
        assert primaryRanges.contains(new Range<Token>(new StringToken("K"), new StringToken("L")));
        // because /127.0.0.4 holds token "B" which is the next to token "A" from /127.0.0.1,
        // the node covers range (L, A]
        assert primaryRanges.contains(new Range<Token>(new StringToken("L"), new StringToken("A")));

        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.5"));
        assert primaryRanges.size() == 8;
        assert primaryRanges.contains(new Range<Token>(new StringToken("C"), new StringToken("D")));
        assert primaryRanges.contains(new Range<Token>(new StringToken("E"), new StringToken("F")));
        assert primaryRanges.contains(new Range<Token>(new StringToken("J"), new StringToken("K")));
        // ranges from /127.0.0.1
        assert primaryRanges.contains(new Range<Token>(new StringToken("D"), new StringToken("E")));
        // the next token to "H" in DC2 is "K" in /127.0.0.5, so (G, H] goes to /127.0.0.5
        assert primaryRanges.contains(new Range<Token>(new StringToken("G"), new StringToken("H")));
        // ranges from /127.0.0.2
        assert primaryRanges.contains(new Range<Token>(new StringToken("B"), new StringToken("C")));
        assert primaryRanges.contains(new Range<Token>(new StringToken("H"), new StringToken("I")));
        assert primaryRanges.contains(new Range<Token>(new StringToken("I"), new StringToken("J")));
    }
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    public void testPrimaryRangesWithSimpleStrategy() throws Exception
    {
        TokenMetadata metadata = StorageService.instance.getTokenMetadata();
        metadata.clearUnsafe();

        metadata.updateNormalToken(new StringToken("A"), InetAddress.getByName("127.0.0.1"));
        metadata.updateNormalToken(new StringToken("B"), InetAddress.getByName("127.0.0.2"));
        metadata.updateNormalToken(new StringToken("C"), InetAddress.getByName("127.0.0.3"));

        Map<String, String> configOptions = new HashMap<String, String>();
        configOptions.put("replication_factor", "2");

        Keyspace.clear("Keyspace1");
        KSMetaData meta = KSMetaData.newKeyspace("Keyspace1", "SimpleStrategy", configOptions, false);
        Schema.instance.setKeyspaceDefinition(meta);

        Collection<Range<Token>> primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.1"));
        assert primaryRanges.size() == 1;
        assert primaryRanges.contains(new Range<Token>(new StringToken("C"), new StringToken("A")));

        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.2"));
        assert primaryRanges.size() == 1;
        assert primaryRanges.contains(new Range<Token>(new StringToken("A"), new StringToken("B")));

        primaryRanges = StorageService.instance.getPrimaryRangesForEndpoint(meta.name, InetAddress.getByName("127.0.0.3"));
        assert primaryRanges.size() == 1;
        assert primaryRanges.contains(new Range<Token>(new StringToken("B"), new StringToken("C")));
    }
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        DatacenterShardStrategy strategy = new DatacenterShardStrategy(table, metadata, snitch, configOptions);
        assert strategy.getReplicationFactor("DC1") == 3;
        assert strategy.getReplicationFactor("DC2") == 2;
        assert strategy.getReplicationFactor("DC3") == 1;
        // Query for the natural hosts
        ArrayList<InetAddress> endpoints = strategy.getNaturalEndpoints(new StringToken("123"));
        assert 6 == endpoints.size();
        assert 6 == new HashSet<InetAddress>(endpoints).size(); // ensure uniqueness
    }
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        tokenFactory(metadata, "ABC", new byte[]{ 10, 20, 114, 15 });
    }

    public void tokenFactory(TokenMetadata metadata, String token, byte[] bytes) throws UnknownHostException
    {
        Token token1 = new StringToken(token);
        InetAddress add1 = InetAddress.getByAddress(bytes);
        metadata.updateNormalToken(token1, add1);
    }
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    {
        TokenMetadata metadata = StorageService.instance.getTokenMetadata();
        metadata.clearUnsafe();

        // DC1
        metadata.updateNormalToken(new StringToken("A"), InetAddress.getByName("127.0.0.1"));
        metadata.updateNormalToken(new StringToken("C"), InetAddress.getByName("127.0.0.2"));

        // DC2
        metadata.updateNormalToken(new StringToken("B"), InetAddress.getByName("127.0.0.4"));
        metadata.updateNormalToken(new StringToken("D"), InetAddress.getByName("127.0.0.5"));

        Map<String, String> configOptions = new HashMap<>();
        configOptions.put("DC1", "1");
        configOptions.put("DC2", "1");

        Keyspace.clear("Keyspace1");
        KSMetaData meta = KSMetaData.newKeyspace("Keyspace1", "NetworkTopologyStrategy", configOptions, false);
        Schema.instance.setKeyspaceDefinition(meta);

        Collection<Range<Token>> primaryRanges = StorageService.instance.getPrimaryRangeForEndpointWithinDC(meta.name,
                                                                                                            InetAddress.getByName("127.0.0.1"));
        assertEquals(2, primaryRanges.size());
        assertTrue(primaryRanges.contains(new Range<Token>(new StringToken("D"), new StringToken("A"))));
        assertTrue(primaryRanges.contains(new Range<Token>(new StringToken("C"), new StringToken("D"))));

        primaryRanges = StorageService.instance.getPrimaryRangeForEndpointWithinDC(meta.name, InetAddress.getByName("127.0.0.2"));
        assertEquals(2, primaryRanges.size());
        assertTrue(primaryRanges.contains(new Range<Token>(new StringToken("A"), new StringToken("B"))));
        assertTrue(primaryRanges.contains(new Range<Token>(new StringToken("B"), new StringToken("C"))));

        primaryRanges = StorageService.instance.getPrimaryRangeForEndpointWithinDC(meta.name, InetAddress.getByName("127.0.0.4"));
        assertEquals(2, primaryRanges.size());
        assertTrue(primaryRanges.contains(new Range<Token>(new StringToken("D"), new StringToken("A"))));
        assertTrue(primaryRanges.contains(new Range<Token>(new StringToken("A"), new StringToken("B"))));

        primaryRanges = StorageService.instance.getPrimaryRangeForEndpointWithinDC(meta.name, InetAddress.getByName("127.0.0.5"));
        assertEquals(2, primaryRanges.size());
        assertTrue(primaryRanges.contains(new Range<Token>(new StringToken("B"), new StringToken("C"))));
        assertTrue(primaryRanges.contains(new Range<Token>(new StringToken("C"), new StringToken("D"))));
    }
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Related Classes of org.apache.cassandra.dht.StringToken

  • org.apache.cassandra.db.BootstrapTest
  • org.apache.cassandra.locator.DatacenterShardStrategyTest
  • org.apache.cassandra.locator.NetworkTopologyStrategyTest
  • org.apache.cassandra.locator.RackUnawareStrategyTest
  • org.apache.cassandra.service.StorageServiceServerTest
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