Examples with ServerConfiguration herddb.server.ServerConfiguration used on opensource projects

Example 6 with ServerConfiguration

use of herddb.server.ServerConfiguration in project herddb by diennea.

the class BookKeeperCommitLogTest method testFollowEmptyLedgerBookieDown.

@Test
public void testFollowEmptyLedgerBookieDown() throws Exception {
    BookieId secondBookie = testEnv.startNewBookie();
    final String tableSpaceUUID = UUID.randomUUID().toString();
    final String name = TableSpace.DEFAULT;
    final String nodeid = "nodeid";
    ServerConfiguration serverConfiguration = newServerConfigurationWithAutoPort();
    try (ZookeeperMetadataStorageManager man = new ZookeeperMetadataStorageManager(testEnv.getAddress(), testEnv.getTimeout(), testEnv.getPath());
        BookkeeperCommitLogManager logManager = new BookkeeperCommitLogManager(man, serverConfiguration, NullStatsLogger.INSTANCE)) {
        logManager.setEnsemble(2);
        logManager.setWriteQuorumSize(2);
        logManager.setAckQuorumSize(2);
        man.start();
        logManager.start();
        try (BookkeeperCommitLog writer = logManager.createCommitLog(tableSpaceUUID, name, nodeid)) {
            writer.startWriting(1);
            // create a ledger, up to 0.14.x no "logical" write happens, so Bookies are not aware of the
            // the ledger
            // stop one bookie
            testEnv.stopBookie(secondBookie);
            // but since 0.15.0 we are now writing a NOOP entry at the beginning of the ledger in order to workaround this issue.
            try (BookkeeperCommitLog reader = logManager.createCommitLog(tableSpaceUUID, name, nodeid)) {
                reader.recovery(LogSequenceNumber.START_OF_TIME, (a, b) -> {
                }, false);
            }
        }
    }
}

Example 7 with ServerConfiguration

use of herddb.server.ServerConfiguration in project herddb by diennea.

the class BookKeeperCommitLogTest method testBookieFailureSyncWrites.

@Test
public void testBookieFailureSyncWrites() throws Exception {
    final String tableSpaceUUID = UUID.randomUUID().toString();
    final String name = TableSpace.DEFAULT;
    final String nodeid = "nodeid";
    ServerConfiguration serverConfiguration = newServerConfigurationWithAutoPort();
    try (ZookeeperMetadataStorageManager man = new ZookeeperMetadataStorageManager(testEnv.getAddress(), testEnv.getTimeout(), testEnv.getPath());
        BookkeeperCommitLogManager logManager = new BookkeeperCommitLogManager(man, serverConfiguration, NullStatsLogger.INSTANCE)) {
        man.start();
        logManager.start();
        try (BookkeeperCommitLog writer = logManager.createCommitLog(tableSpaceUUID, name, nodeid)) {
            writer.startWriting(1);
            writer.log(LogEntryFactory.beginTransaction(1), true).getLogSequenceNumber();
            this.testEnv.pauseBookie();
            // this is deemed to fail and we will close the log
            TestUtils.assertThrows(LogNotAvailableException.class, () -> writer.log(LogEntryFactory.beginTransaction(2), true).getLogSequenceNumber());
            assertTrue(writer.isFailed());
            // this one will fail as well
            TestUtils.assertThrows(LogNotAvailableException.class, () -> writer.log(LogEntryFactory.beginTransaction(2), true).getLogSequenceNumber());
            // no way to recover this instance of BookkeeperCommitLog
            // we will bounce the leader and it will restart with a full recovery
            // in a production env you do not have only one bookie, and the failure
            // of a single bookie will be handled with an ensemble change
            this.testEnv.resumeBookie();
            TestUtils.assertThrows(LogNotAvailableException.class, () -> writer.log(LogEntryFactory.beginTransaction(2), true).getLogSequenceNumber());
        }
        // check expected reads
        try (BookkeeperCommitLog reader = logManager.createCommitLog(tableSpaceUUID, name, nodeid)) {
            List<Map.Entry<LogSequenceNumber, LogEntry>> list = new ArrayList<>();
            reader.recovery(LogSequenceNumber.START_OF_TIME, (lsn, entry) -> {
                if (entry.type != LogEntryType.NOOP) {
                    list.add(new AbstractMap.SimpleImmutableEntry<>(lsn, entry));
                }
            }, false);
            assertEquals(1, list.size());
            assertTrue(list.get(0).getKey().after(LogSequenceNumber.START_OF_TIME));
        }
    }
}

Example 8 with ServerConfiguration

use of herddb.server.ServerConfiguration in project herddb by diennea.

the class ChangeRoleTest method testChangeRoleAndReleaseMemory.

@Test
public void testChangeRoleAndReleaseMemory() throws Exception {
    ServerConfiguration serverconfig_1 = newServerConfigurationWithAutoPort(folder.newFolder().toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_NODEID, "server1");
    serverconfig_1.set(ServerConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ENFORCE_LEADERSHIP, false);
    // disabled
    serverconfig_1.set(ServerConfiguration.PROPERTY_BOOKKEEPER_MAX_IDLE_TIME, 0);
    ServerConfiguration serverconfig_2 = serverconfig_1.copy().set(ServerConfiguration.PROPERTY_NODEID, "server2").set(ServerConfiguration.PROPERTY_BASEDIR, folder.newFolder().toPath().toAbsolutePath());
    try (Server server_1 = new Server(serverconfig_1);
        Server server_2 = new Server(serverconfig_2)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        server_2.start();
        MemoryManager server2MemoryManager = server_2.getManager().getMemoryManager();
        Table table = Table.builder().name("t1").column("c", ColumnTypes.INTEGER).column("s", ColumnTypes.INTEGER).primaryKey("c").build();
        Index index = Index.builder().onTable(table).type(Index.TYPE_BRIN).column("s", ColumnTypes.STRING).build();
        server_1.getManager().executeStatement(new CreateTableStatement(table), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeStatement(new CreateIndexStatement(index), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 1, "s", "1")), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 2, "s", "2")), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 3, "s", "3")), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 4, "s", "4")), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        // set forcibly server2 as new follower
        server_1.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1", "server2")), "server1", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        assertEquals(0, server2MemoryManager.getDataPageReplacementPolicy().size());
        assertEquals(0, server2MemoryManager.getIndexPageReplacementPolicy().size());
        assertEquals(0, server2MemoryManager.getPKPageReplacementPolicy().size());
        server_2.waitForTableSpaceBoot(TableSpace.DEFAULT, false);
        assertEquals(1, server2MemoryManager.getDataPageReplacementPolicy().size());
        assertEquals(1, server2MemoryManager.getIndexPageReplacementPolicy().size());
        assertEquals(1, server2MemoryManager.getPKPageReplacementPolicy().size());
        // stop tablespace on server2
        server_1.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1")), "server1", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_2.getManager().triggerActivator(ActivatorRunRequest.FULL);
        // wait for tablespace manager to be deallocated
        herddb.utils.TestUtils.waitForCondition(() -> {
            TableSpaceManager tableSpaceManager = server_2.getManager().getTableSpaceManager(TableSpace.DEFAULT);
            return tableSpaceManager == null;
        }, herddb.utils.TestUtils.NOOP, 100);
        // memory must have been totally released
        assertEquals(0, server2MemoryManager.getDataPageReplacementPolicy().size());
        assertEquals(0, server2MemoryManager.getIndexPageReplacementPolicy().size());
        assertEquals(0, server2MemoryManager.getPKPageReplacementPolicy().size());
        // start tablespace on server2, as let it become leader
        server_1.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1", "server2")), "server2", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_2.waitForTableSpaceBoot(TableSpace.DEFAULT, true);
        assertTrue("unexpected value " + server2MemoryManager.getDataPageReplacementPolicy().size(), server2MemoryManager.getDataPageReplacementPolicy().size() >= 1);
        assertEquals(1, server2MemoryManager.getIndexPageReplacementPolicy().size());
        assertEquals(1, server2MemoryManager.getPKPageReplacementPolicy().size());
        server_1.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1")), "server1", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        // wait for tablespace manager to be deallocated
        herddb.utils.TestUtils.waitForCondition(() -> {
            TableSpaceManager tableSpaceManager = server_2.getManager().getTableSpaceManager(TableSpace.DEFAULT);
            return tableSpaceManager == null;
        }, herddb.utils.TestUtils.NOOP, 100);
        // memory must have been totally released again
        assertEquals(0, server2MemoryManager.getDataPageReplacementPolicy().size());
        assertEquals(0, server2MemoryManager.getIndexPageReplacementPolicy().size());
        assertEquals(0, server2MemoryManager.getPKPageReplacementPolicy().size());
    }
}

Example 9 with ServerConfiguration

use of herddb.server.ServerConfiguration in project herddb by diennea.

the class SimpleCDCTest method testBasicCaptureDataChange.

@Test
public void testBasicCaptureDataChange() throws Exception {
    ServerConfiguration serverconfig_1 = newServerConfigurationWithAutoPort(folder.newFolder().toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_NODEID, "server1");
    serverconfig_1.set(ServerConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    ClientConfiguration client_configuration = new ClientConfiguration(folder.newFolder().toPath());
    client_configuration.set(ClientConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        Table table = Table.builder().name("t1").column("c", ColumnTypes.INTEGER).column("d", ColumnTypes.INTEGER).primaryKey("c").build();
        server_1.getManager().executeStatement(new CreateTableStatement(table), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 1, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 2, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        long tx = TestUtils.beginTransaction(server_1.getManager(), TableSpace.DEFAULT);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 3, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), new TransactionContext(tx));
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 4, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), new TransactionContext(tx));
        List<ChangeDataCapture.Mutation> mutations = new ArrayList<>();
        try (final ChangeDataCapture cdc = new ChangeDataCapture(server_1.getManager().getTableSpaceManager(TableSpace.DEFAULT).getTableSpaceUUID(), client_configuration, new ChangeDataCapture.MutationListener() {

            @Override
            public void accept(ChangeDataCapture.Mutation mutation) {
                LOG.log(Level.INFO, "mutation " + mutation);
                assertTrue(mutation.getTimestamp() > 0);
                assertNotNull(mutation.getLogSequenceNumber());
                assertNotNull(mutation.getTable());
                mutations.add(mutation);
            }
        }, LogSequenceNumber.START_OF_TIME, new InMemoryTableHistoryStorage())) {
            cdc.start();
            cdc.run();
            // we are missing the last entry, because it is not confirmed yet on BookKeeper at this point
            // also the mutations in the transaction are not visible
            assertEquals(3, mutations.size());
            // commit the transaction
            TestUtils.commitTransaction(server_1.getManager(), TableSpace.DEFAULT, tx);
            server_1.getManager().executeUpdate(new UpdateStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 4, "d", 2), null), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
            cdc.run();
            assertEquals(5, mutations.size());
            server_1.getManager().executeStatement(new AlterTableStatement(Arrays.asList(Column.column("e", ColumnTypes.INTEGER)), Collections.emptyList(), Collections.emptyList(), null, table.name, TableSpace.DEFAULT, null, Collections.emptyList(), Collections.emptyList()), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
            cdc.run();
            assertEquals(6, mutations.size());
            // transaction to be rolled back
            long tx2 = TestUtils.beginTransaction(server_1.getManager(), TableSpace.DEFAULT);
            server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 30, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), new TransactionContext(tx2));
            server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 31, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), new TransactionContext(tx2));
            TestUtils.roolbackTransaction(server_1.getManager(), TableSpace.DEFAULT, tx2);
            // nothing is to be sent to CDC
            cdc.run();
            assertEquals(7, mutations.size());
            server_1.getManager().executeUpdate(new DeleteStatement(TableSpace.DEFAULT, "t1", Bytes.from_int(1), null), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
            cdc.run();
            assertEquals(7, mutations.size());
            // close the server...close the ledger, now we can read the last mutation
            server_1.close();
            cdc.run();
            assertEquals(8, mutations.size());
            int i = 0;
            assertEquals(ChangeDataCapture.MutationType.CREATE_TABLE, mutations.get(i++).getMutationType());
            assertEquals(ChangeDataCapture.MutationType.INSERT, mutations.get(i++).getMutationType());
            assertEquals(ChangeDataCapture.MutationType.INSERT, mutations.get(i++).getMutationType());
            assertEquals(ChangeDataCapture.MutationType.INSERT, mutations.get(i++).getMutationType());
            assertEquals(ChangeDataCapture.MutationType.INSERT, mutations.get(i++).getMutationType());
            assertEquals(ChangeDataCapture.MutationType.UPDATE, mutations.get(i++).getMutationType());
            assertEquals(ChangeDataCapture.MutationType.ALTER_TABLE, mutations.get(i++).getMutationType());
            assertEquals(ChangeDataCapture.MutationType.DELETE, mutations.get(i++).getMutationType());
        }
    }
}

Example 10 with ServerConfiguration

use of herddb.server.ServerConfiguration in project herddb by diennea.

the class SimpleCDCTest method testBasicCaptureDataChangeWithRestart.

@Test
public void testBasicCaptureDataChangeWithRestart() throws Exception {
    ServerConfiguration serverconfig_1 = newServerConfigurationWithAutoPort(folder.newFolder().toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_NODEID, "server1");
    serverconfig_1.set(ServerConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    ClientConfiguration client_configuration = new ClientConfiguration(folder.newFolder().toPath());
    client_configuration.set(ClientConfiguration.PROPERTY_MODE, ServerConfiguration.PROPERTY_MODE_CLUSTER);
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_ADDRESS, testEnv.getAddress());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_PATH, testEnv.getPath());
    client_configuration.set(ClientConfiguration.PROPERTY_ZOOKEEPER_SESSIONTIMEOUT, testEnv.getTimeout());
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        Table table = Table.builder().name("t1").column("c", ColumnTypes.INTEGER).column("d", ColumnTypes.INTEGER).primaryKey("c").build();
        server_1.getManager().executeStatement(new CreateTableStatement(table), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 1, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 2, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 3, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 4, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        InMemoryTableHistoryStorage tableHistoryStorage = new InMemoryTableHistoryStorage();
        LogSequenceNumber currentPosition = LogSequenceNumber.START_OF_TIME;
        List<ChangeDataCapture.Mutation> mutations = new ArrayList<>();
        currentPosition = performOneCDCStep(client_configuration, server_1, tableHistoryStorage, currentPosition, mutations);
        // we are missing the last entry, because it is not confirmed yet on BookKeeper at this point
        assertEquals(4, mutations.size());
        server_1.getManager().executeUpdate(new UpdateStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 4, "d", 2), null), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        currentPosition = performOneCDCStep(client_configuration, server_1, tableHistoryStorage, currentPosition, mutations);
        assertEquals(5, mutations.size());
        server_1.getManager().executeStatement(new AlterTableStatement(Arrays.asList(Column.column("e", ColumnTypes.INTEGER)), Collections.emptyList(), Collections.emptyList(), null, table.name, TableSpace.DEFAULT, null, Collections.emptyList(), Collections.emptyList()), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        currentPosition = performOneCDCStep(client_configuration, server_1, tableHistoryStorage, currentPosition, mutations);
        assertEquals(6, mutations.size());
        server_1.getManager().executeUpdate(new DeleteStatement(TableSpace.DEFAULT, "t1", Bytes.from_int(1), null), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        currentPosition = performOneCDCStep(client_configuration, server_1, tableHistoryStorage, currentPosition, mutations);
        assertEquals(7, mutations.size());
        // close the server...close the ledger, now we can read the last mutation
        server_1.close();
        currentPosition = performOneCDCStep(client_configuration, server_1, tableHistoryStorage, currentPosition, mutations);
        assertEquals(8, mutations.size());
        int i = 0;
        assertEquals(ChangeDataCapture.MutationType.CREATE_TABLE, mutations.get(i++).getMutationType());
        assertEquals(ChangeDataCapture.MutationType.INSERT, mutations.get(i++).getMutationType());
        assertEquals(ChangeDataCapture.MutationType.INSERT, mutations.get(i++).getMutationType());
        assertEquals(ChangeDataCapture.MutationType.INSERT, mutations.get(i++).getMutationType());
        assertEquals(ChangeDataCapture.MutationType.INSERT, mutations.get(i++).getMutationType());
        assertEquals(ChangeDataCapture.MutationType.UPDATE, mutations.get(i++).getMutationType());
        assertEquals(ChangeDataCapture.MutationType.ALTER_TABLE, mutations.get(i++).getMutationType());
        assertEquals(ChangeDataCapture.MutationType.DELETE, mutations.get(i++).getMutationType());
    }
}