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

Example 21 with ServerConfiguration

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

the class SimpleClientServerTest method testEnsureOpen.

@Test
public void testEnsureOpen() throws Exception {
    Path baseDir = folder.newFolder().toPath();
    AtomicReference<ClientSideConnectionPeer[]> connections = new AtomicReference<>();
    ServerConfiguration serverConfiguration = newServerConfigurationWithAutoPort(baseDir);
    try (Server server = new Server(newServerConfigurationWithAutoPort(baseDir))) {
        server.getNetworkServer().setEnableJVMNetwork(false);
        server.getNetworkServer().setEnableRealNetwork(true);
        server.start();
        server.waitForStandaloneBoot();
        ClientConfiguration clientConfiguration = new ClientConfiguration(folder.newFolder().toPath());
        clientConfiguration.set(ClientConfiguration.PROPERTY_MAX_CONNECTIONS_PER_SERVER, 1);
        clientConfiguration.set(ClientConfiguration.PROPERTY_TIMEOUT, 2000);
        try (HDBClient client = new HDBClient(clientConfiguration) {

            @Override
            public HDBConnection openConnection() {
                HDBConnection con = new HDBConnection(this) {

                    @Override
                    protected ClientSideConnectionPeer chooseConnection(ClientSideConnectionPeer[] all) {
                        connections.set(all);
                        return all[0];
                    }
                };
                registerConnection(con);
                return con;
            }
        };
            HDBConnection connection = client.openConnection()) {
            client.setClientSideMetadataProvider(new StaticClientSideMetadataProvider(server));
            assertTrue(connection.waitForTableSpace(TableSpace.DEFAULT, Integer.MAX_VALUE));
            long resultCreateTable = connection.executeUpdate(TableSpace.DEFAULT, "CREATE TABLE mytable (id int primary key, s1 string)", 0, false, true, Collections.emptyList()).updateCount;
            Assert.assertEquals(1, resultCreateTable);
            assertEquals(1, connection.executeUpdate(TableSpace.DEFAULT, "INSERT INTO mytable (id,s1) values(?,?)", 0, false, true, Arrays.asList(1, "test1")).updateCount);
            // assert we are using real network
            assertNotEquals(NettyChannel.ADDRESS_JVM_LOCAL, connections.get()[0].getChannel().getRemoteAddress());
            io.netty.channel.Channel socket = ((NettyChannel) connections.get()[0].getChannel()).getSocket();
            assertThat(socket, instanceOf(SocketChannel.class));
            // invalidate socket connection (simulate network error)
            socket.close().await();
            // ensure reconnection is performed (using prepared statement)
            connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM mytable ", true, Collections.emptyList(), 0, 100, 1000, true).close();
            // assert we are using real network
            assertNotEquals(NettyChannel.ADDRESS_JVM_LOCAL, connections.get()[0].getChannel().getRemoteAddress());
            io.netty.channel.Channel socket2 = ((NettyChannel) connections.get()[0].getChannel()).getSocket();
            assertThat(socket2, instanceOf(SocketChannel.class));
            assertNotSame(socket2, socket);
            // invalidate socket connection (simulate network error)
            socket2.close().await();
            // ensure reconnection is performed (not using prepared statement)
            connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM mytable ", false, Collections.emptyList(), 0, 100, 1000, true).close();
        }
    }
}

Example 22 with ServerConfiguration

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

the class BootFollowerTest method testFollowerBootError.

@Test
public void testFollowerBootError() throws Exception {
    int size = 20_000;
    final AtomicInteger callCount = new AtomicInteger();
    // inject a temporary error during download
    final AtomicInteger errorCount = new AtomicInteger(1);
    SystemInstrumentation.addListener(new SystemInstrumentation.SingleInstrumentationPointListener("receiveTableDataChunk") {

        @Override
        public void acceptSingle(Object... args) throws Exception {
            callCount.incrementAndGet();
            if (errorCount.decrementAndGet() == 0) {
                throw new Exception("synthetic error");
            }
        }
    });
    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()).set(ServerConfiguration.PROPERTY_BOOT_FORCE_DOWNLOAD_SNAPSHOT, true).set(ServerConfiguration.PROPERTY_MEMORY_LIMIT_REFERENCE, 5_000_000).set(ServerConfiguration.PROPERTY_MAX_LOGICAL_PAGE_SIZE, 200_000);
    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("s", ColumnTypes.INTEGER).primaryKey("c").build();
        server_1.getManager().executeStatement(new CreateTableStatement(table), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            LogSequenceNumber lastSequenceNumberServer1 = server_1.getManager().getTableSpaceManager(TableSpace.DEFAULT).getLog().getLastSequenceNumber();
            for (int i = 0; i < size; i++) {
                server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", i, "s", "1" + i)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
            }
            server_1.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1", "server2")), "server1", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
            assertTrue(server_2.getManager().waitForTablespace(TableSpace.DEFAULT, 60000, false));
            LogSequenceNumber lastSequenceNumberServer2 = server_2.getManager().getTableSpaceManager(TableSpace.DEFAULT).getLog().getLastSequenceNumber();
            while (!lastSequenceNumberServer2.after(lastSequenceNumberServer1)) {
                System.out.println("WAITING FOR server2 to be in sync....now it is a " + lastSequenceNumberServer2 + " vs " + lastSequenceNumberServer1);
                lastSequenceNumberServer2 = server_2.getManager().getTableSpaceManager(TableSpace.DEFAULT).getLog().getLastSequenceNumber();
                Thread.sleep(1000);
            }
        }
        // reboot follower˙
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            assertTrue(server_2.getManager().waitForTablespace(TableSpace.DEFAULT, 60000, false));
            for (int i = 0; i < size; i++) {
                GetResult found = server_2.getManager().get(new GetStatement(TableSpace.DEFAULT, "t1", Bytes.from_int(i), null, false), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
                if (found.found()) {
                    break;
                }
                Thread.sleep(100);
            }
        }
        assertEquals(3, callCount.get());
        assertTrue(errorCount.get() <= 0);
    }
}

Example 23 with ServerConfiguration

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

the class BootFollowerTest method testLeaderOnlineLogAvailable.

@Test
public void testLeaderOnlineLogAvailable() 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_1.start();
        server_1.waitForStandaloneBoot();
        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);
        DMLStatementExecutionResult executeUpdateTransaction = server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 5, "s", "5")), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.AUTOTRANSACTION_TRANSACTION);
        server_1.getManager().executeStatement(new CommitTransactionStatement(TableSpace.DEFAULT, executeUpdateTransaction.transactionId), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        // force BK LAC
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 6, "s", "6")), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.getManager().setActivatorPauseStatus(true);
            server_2.start();
            assertTrue(server_2.getManager().isTableSpaceLocallyRecoverable(server_2.getMetadataStorageManager().describeTableSpace(TableSpace.DEFAULT)));
            server_2.getManager().setActivatorPauseStatus(false);
            server_1.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1", "server2")), "server1", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
            assertTrue(server_2.getManager().waitForTablespace(TableSpace.DEFAULT, 60000, false));
            // wait for data to arrive on server_2
            for (int i = 0; i < 100; i++) {
                GetResult found = server_2.getManager().get(new GetStatement(TableSpace.DEFAULT, "t1", Bytes.from_int(5), null, false), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
                if (found.found()) {
                    break;
                }
                Thread.sleep(100);
            }
            for (int i = 1; i <= 5; i++) {
                System.out.println("checking key c=" + i);
                assertTrue(server_2.getManager().get(new GetStatement(TableSpace.DEFAULT, "t1", Bytes.from_int(i), null, false), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION).found());
            }
            TranslatedQuery translated = server_1.getManager().getPlanner().translate(TableSpace.DEFAULT, "SELECT * FROM " + TableSpace.DEFAULT + ".t1 WHERE s=1", Collections.emptyList(), true, true, false, -1);
            ScanStatement statement = translated.plan.mainStatement.unwrap(ScanStatement.class);
            assertTrue(statement.getPredicate().getIndexOperation() instanceof SecondaryIndexSeek);
            try (DataScanner scan = server_1.getManager().scan(statement, translated.context, TransactionContext.NO_TRANSACTION)) {
                assertEquals(1, scan.consume().size());
            }
        }
    }
}

Example 24 with ServerConfiguration

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

the class SimpleFollowerTest method testLeaderOnlineLogAvailableMultipleVersionsActivePages.

@Test
public void testLeaderOnlineLogAvailableMultipleVersionsActivePages() throws Exception {
    ServerConfiguration serverconfig_1 = newServerConfigurationWithAutoPort(folder.newFolder().toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_MAX_LOGICAL_PAGE_SIZE, 1000);
    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);
    serverconfig_1.set(ServerConfiguration.PROPERTY_ENFORCE_LEADERSHIP, false);
    // delete ledgers soon
    serverconfig_1.set(ServerConfiguration.PROPERTY_BOOKKEEPER_LEDGERS_RETENTION_PERIOD, 1);
    serverconfig_1.set(ServerConfiguration.PROPERTY_CHECKPOINT_PERIOD, 0);
    // disabled
    serverconfig_1.set(ServerConfiguration.PROPERTY_BOOKKEEPER_MAX_IDLE_TIME, 0);
    /*
         * Disable page compaction (avoid compaction of dirty page)
         */
    serverconfig_1.set(ServerConfiguration.PROPERTY_FILL_PAGE_THRESHOLD, 0.0D);
    ServerConfiguration serverconfig_2 = serverconfig_1.copy().set(ServerConfiguration.PROPERTY_NODEID, "server2").set(ServerConfiguration.PROPERTY_BOOT_FORCE_DOWNLOAD_SNAPSHOT, true).set(ServerConfiguration.PROPERTY_BASEDIR, folder.newFolder().toPath().toAbsolutePath());
    Table table = Table.builder().name("t1").column("c", ColumnTypes.INTEGER).column("s", ColumnTypes.STRING).primaryKey("c").build();
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        server_1.getManager().executeStatement(new CreateTableStatement(table), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        TableSpaceManager tableSpaceManager = server_1.getManager().getTableSpaceManager(TableSpace.DEFAULT);
        AbstractTableManager tableManager = tableSpaceManager.getTableManager("t1");
        // fill table
        long tx = herddb.core.TestUtils.beginTransaction(server_1.getManager(), TableSpace.DEFAULT);
        for (int i = 0; i < 1000; i++) {
            server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", i, "s", "1")), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), new TransactionContext(tx));
        }
        herddb.core.TestUtils.commitTransaction(server_1.getManager(), TableSpace.DEFAULT, tx);
        // when we send the dump to the follower we must send only the latest version of the record
        for (int i = 0; i < 10; i++) {
            tableManager.flush();
            server_1.getManager().executeUpdate(new UpdateStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 1, "s", "2" + i), null), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        }
        BooleanHolder foundDuplicate = new BooleanHolder(false);
        server_1.getManager().getDataStorageManager().fullTableScan(tableSpaceManager.getTableSpaceUUID(), tableManager.getTable().uuid, new FullTableScanConsumer() {

            Map<Bytes, Long> recordPage = new HashMap<>();

            @Override
            public void acceptPage(long pageId, List<Record> records) {
                for (Record record : records) {
                    Long prev = recordPage.put(record.key, pageId);
                    if (prev != null) {
                        foundDuplicate.value = true;
                    }
                }
            }
        });
        assertTrue(foundDuplicate.value);
        // data will be downloaded from the server_1 (PROPERTY_BOOT_FORCE_DOWNLOAD_SNAPSHOT)
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            assertTrue(server_2.getManager().isTableSpaceLocallyRecoverable(server_1.getMetadataStorageManager().describeTableSpace(TableSpace.DEFAULT)));
            server_1.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1", "server2")), "server1", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
            assertTrue(server_2.getManager().waitForTablespace(TableSpace.DEFAULT, 60000, false));
        }
    }
}

Example 25 with ServerConfiguration

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

the class SimpleFollowerTest method testForLastConfirmedBackground.

@Test
public void testForLastConfirmedBackground() 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);
    // send a dummy write after 1 seconds of inactivity
    serverconfig_1.set(ServerConfiguration.PROPERTY_BOOKKEEPER_MAX_IDLE_TIME, 1000);
    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_1.start();
        server_1.waitForStandaloneBoot();
        Table table = Table.builder().name("t1").column("c", 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)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 3)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 4)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        DMLStatementExecutionResult executeUpdateTransaction = server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 5)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.AUTOTRANSACTION_TRANSACTION);
        server_1.getManager().executeStatement(new CommitTransactionStatement(TableSpace.DEFAULT, executeUpdateTransaction.transactionId), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            server_1.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1", "server2")), "server1", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
            assertTrue(server_2.getManager().waitForTablespace(TableSpace.DEFAULT, 60000, false));
            // wait for data to arrive on server_2
            for (int i = 0; i < 100; i++) {
                GetResult found = server_2.getManager().get(new GetStatement(TableSpace.DEFAULT, "t1", Bytes.from_int(5), null, false), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
                if (found.found()) {
                    break;
                }
                Thread.sleep(100);
            }
            for (int i = 1; i <= 5; i++) {
                System.out.println("checking key c=" + i);
                assertTrue(server_2.getManager().get(new GetStatement(TableSpace.DEFAULT, "t1", Bytes.from_int(i), null, false), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION).found());
            }
        }
    }
}