Examples with HDBConnection herddb.client.HDBConnection used on opensource projects

Example 1 with HDBConnection

use of herddb.client.HDBConnection in project herddb by diennea.

the class HerdDBCLI method performRestore.

private static void performRestore(String file, String leader, String newschema, Options options, final Statement statement, final Connection connection) throws SQLException, Exception {
    if (file.isEmpty()) {
        println("Please provide --file option");
        failAndPrintHelp(options);
        return;
    }
    Path inputfile = Paths.get(file).toAbsolutePath();
    if (leader.isEmpty() || newschema.isEmpty()) {
        println("options 'newleader' and 'newschema' are required");
        failAndPrintHelp(options);
        return;
    }
    List<String> nodes = new ArrayList<>();
    try (ResultSet rs = statement.executeQuery("SELECT nodeid FROM sysnodes")) {
        while (rs.next()) {
            String nodeid = rs.getString(1);
            nodes.add(nodeid);
        }
    }
    println("Restoring tablespace " + newschema + " with leader " + leader + " from file " + inputfile);
    if (!nodes.contains(leader)) {
        println("There is no node with node id '" + leader + "'");
        println("Valid nodes:");
        for (String nodeid : nodes) {
            println("* " + nodeid);
        }
        return;
    }
    try (InputStream fin = wrapStream(file, Files.newInputStream(inputfile));
        InputStream bin = new BufferedInputStream(fin, 16 * 1024 * 1024)) {
        HerdDBConnection hcon = connection.unwrap(HerdDBConnection.class);
        HDBConnection hdbconnection = hcon.getConnection();
        BackupUtils.restoreTableSpace(newschema, leader, hdbconnection, bin, new ProgressListener() {

            @Override
            public void log(String actionType, String message, Map<String, Object> context) {
                println(message);
            }
        });
    }
    println("Restore finished");
}

Example 2 with HDBConnection

use of herddb.client.HDBConnection in project herddb by diennea.

the class BackupRestoreTest method test_backup_restore_with_deletes.

/**
 * Check that restore a dirty delete doesn't revive a record (it is: a phantom deleted record on a dirty page)
 */
@Test
public void test_backup_restore_with_deletes() throws Exception {
    ServerConfiguration serverconfig_1 = new ServerConfiguration(folder.newFolder().toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_NODEID, "server1");
    serverconfig_1.set(ServerConfiguration.PROPERTY_PORT, 7867);
    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);
    /* 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_BASEDIR, folder.newFolder().toPath().toAbsolutePath()).set(ServerConfiguration.PROPERTY_PORT, 7868);
    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();
        DBManager manager = server_1.getManager();
        manager.executeStatement(new CreateTableStatement(table), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        manager.executeUpdate(new InsertStatement(TableSpace.DEFAULT, table.name, RecordSerializer.makeRecord(table, "c", 1, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        manager.executeUpdate(new InsertStatement(TableSpace.DEFAULT, table.name, RecordSerializer.makeRecord(table, "c", 2, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        manager.executeUpdate(new InsertStatement(TableSpace.DEFAULT, table.name, RecordSerializer.makeRecord(table, "c", 3, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        manager.executeUpdate(new InsertStatement(TableSpace.DEFAULT, table.name, RecordSerializer.makeRecord(table, "c", 4, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        manager.checkpoint();
        /* Check that new data isn't in a dirty page  */
        assertEquals(0, manager.getTableSpaceManager(TableSpace.DEFAULT).getTableManager(table.name).getStats().getDirtypages());
        manager.executeUpdate(new DeleteStatement(TableSpace.DEFAULT, table.name, Bytes.from_int(1), null), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        manager.executeUpdate(new InsertStatement(TableSpace.DEFAULT, table.name, RecordSerializer.makeRecord(table, "c", 5, "d", 2)), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        /* Now we have a dirty page in the checkpoint */
        manager.checkpoint();
        /* Check that a dirty page exists */
        assertEquals(1, manager.getTableSpaceManager(TableSpace.DEFAULT).getTableManager(table.name).getStats().getDirtypages());
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            try (HDBClient client = new HDBClient(client_configuration);
                HDBConnection connection = client.openConnection()) {
                assertEquals(4, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                ByteArrayOutputStream oo = new ByteArrayOutputStream();
                BackupUtils.dumpTableSpace(TableSpace.DEFAULT, 64 * 1024, connection, oo, new ProgressListener() {
                });
                byte[] backupData = oo.toByteArray();
                connection.executeUpdate(TableSpace.DEFAULT, "DELETE FROM t1", 0, false, Collections.emptyList());
                assertEquals(0, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                BackupUtils.restoreTableSpace("newts", server_2.getNodeId(), connection, new ByteArrayInputStream(backupData), new ProgressListener() {
                });
                /* No new insert AND no delete... if 5 it did see the new insert but missed the delete! */
                assertEquals(4, connection.executeScan("newts", "SELECT * FROM newts.t1", Collections.emptyList(), 0, 0, 10).consume().size());
            }
        }
    }
}

Example 3 with HDBConnection

use of herddb.client.HDBConnection in project herddb by diennea.

the class BackupRestoreTest method test_backup_restore.

@Test
public void test_backup_restore() throws Exception {
    ServerConfiguration serverconfig_1 = new ServerConfiguration(folder.newFolder().toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_NODEID, "server1");
    serverconfig_1.set(ServerConfiguration.PROPERTY_PORT, 7867);
    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);
    ServerConfiguration serverconfig_2 = serverconfig_1.copy().set(ServerConfiguration.PROPERTY_NODEID, "server2").set(ServerConfiguration.PROPERTY_BASEDIR, folder.newFolder().toPath().toAbsolutePath()).set(ServerConfiguration.PROPERTY_PORT, 7868);
    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();
        Index index = Index.builder().onTable(table).column("d", ColumnTypes.INTEGER).type(Index.TYPE_BRIN).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, "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);
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            try (HDBClient client = new HDBClient(client_configuration);
                HDBConnection connection = client.openConnection()) {
                assertEquals(4, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                ByteArrayOutputStream oo = new ByteArrayOutputStream();
                BackupUtils.dumpTableSpace(TableSpace.DEFAULT, 64 * 1024, connection, oo, new ProgressListener() {
                });
                byte[] backupData = oo.toByteArray();
                connection.executeUpdate(TableSpace.DEFAULT, "DELETE FROM t1", 0, false, Collections.emptyList());
                assertEquals(0, connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1", Collections.emptyList(), 0, 0, 10).consume().size());
                BackupUtils.restoreTableSpace("newts", server_2.getNodeId(), connection, new ByteArrayInputStream(backupData), new ProgressListener() {
                });
                assertEquals(4, connection.executeScan("newts", "SELECT * FROM newts.t1", Collections.emptyList(), 0, 0, 10).consume().size());
                assertEquals(1, server_2.getManager().getTableSpaceManager("newts").getIndexesOnTable("t1").size());
            }
        }
    }
}

Example 4 with HDBConnection

use of herddb.client.HDBConnection in project herddb by diennea.

the class ClientMultiServerTest method test_leader_switch.

@Test
public void test_leader_switch() throws Exception {
    ServerConfiguration serverconfig_1 = new ServerConfiguration(folder.newFolder("server1").toPath());
    serverconfig_1.set(ServerConfiguration.PROPERTY_NODEID, "server1");
    serverconfig_1.set(ServerConfiguration.PROPERTY_PORT, 7867);
    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());
    ServerConfiguration serverconfig_2 = serverconfig_1.copy().set(ServerConfiguration.PROPERTY_NODEID, "server2").set(ServerConfiguration.PROPERTY_BASEDIR, folder.newFolder("server2").toPath().toAbsolutePath()).set(ServerConfiguration.PROPERTY_PORT, 7868);
    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);
        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", 2, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
            assertTrue(server_2.getManager().waitForTablespace(TableSpace.DEFAULT, 60000, false));
            server_2.getManager().setErrorIfNotLeader(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(1), null, false), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
                if (found.found()) {
                    break;
                }
                Thread.sleep(100);
            }
            assertTrue(server_2.getManager().get(new GetStatement(TableSpace.DEFAULT, "t1", Bytes.from_int(1), null, false), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION).found());
            server_2.getManager().setErrorIfNotLeader(true);
            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 (HDBClient client = new HDBClient(client_configuration);
                HDBConnection connection = client.openConnection()) {
                try (ScanResultSet scan = connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1 WHERE c=1", Collections.emptyList(), 0, 0, 10)) {
                    assertEquals(1, scan.consume().size());
                }
                // switch leader to server2
                server_2.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1", "server2")), "server2", 2, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
                // wait that server_1 leaves leadership
                for (int i = 0; i < 100; i++) {
                    TableSpaceManager tManager = server_1.getManager().getTableSpaceManager(TableSpace.DEFAULT);
                    if (tManager != null && !tManager.isLeader()) {
                        break;
                    }
                    Thread.sleep(100);
                }
                TableSpaceManager tManager = server_1.getManager().getTableSpaceManager(TableSpace.DEFAULT);
                assertTrue(tManager != null && !tManager.isLeader());
                // the client MUST automatically look for the new leader
                try (ScanResultSet scan = connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1 WHERE c=1", Collections.emptyList(), 0, 0, 10)) {
                    assertEquals(1, scan.consume().size());
                }
            }
            // assert  that server_1 is not accepting request any more
            try (HDBClient client_to_1 = new HDBClient(new ClientConfiguration(folder.newFolder().toPath()));
                HDBConnection connection = client_to_1.openConnection()) {
                client_to_1.setClientSideMetadataProvider(new StaticClientSideMetadataProvider(server_1));
                try (ScanResultSet scan = connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1 WHERE c=1", Collections.emptyList(), 0, 0, 10)) {
                    fail("server_1 MUST not accept queries");
                } catch (ClientSideMetadataProviderException ok) {
                }
            }
            // assert that server_2 is accepting requests
            try (HDBClient client_to_2 = new HDBClient(new ClientConfiguration(folder.newFolder().toPath()));
                HDBConnection connection = client_to_2.openConnection()) {
                client_to_2.setClientSideMetadataProvider(new StaticClientSideMetadataProvider(server_2));
                try (ScanResultSet scan = connection.executeScan(TableSpace.DEFAULT, "SELECT * FROM t1 WHERE c=1", Collections.emptyList(), 0, 0, 10)) {
                    assertEquals(1, scan.consume().size());
                }
            }
        }
    }
}

Example 5 with HDBConnection

use of herddb.client.HDBConnection in project herddb by diennea.

the class DeleteCheckpointFilesTest method test.

@Test
public void test() throws Exception {
    ServerConfiguration serverConfiguration = new ServerConfiguration(folder.newFolder().toPath());
    try (Server server = new Server(serverConfiguration)) {
        server.start();
        try (HDBClient client = new HDBClient(new ClientConfiguration(folder.newFolder().toPath()));
            HDBConnection connection = client.openConnection()) {
            client.setClientSideMetadataProvider(new StaticClientSideMetadataProvider(server));
            server.waitForStandaloneBoot();
            long resultCreateTable = connection.executeUpdate(TableSpace.DEFAULT, "CREATE TABLE mytable (id string primary key, n1 long, n2 integer)", 0, false, Collections.emptyList()).updateCount;
            Assert.assertEquals(1, resultCreateTable);
            long resultCreateIndex = connection.executeUpdate(TableSpace.DEFAULT, "CREATE HASH INDEX myhashindex on mytable (n2)", 0, false, Collections.emptyList()).updateCount;
            Assert.assertEquals(1, resultCreateIndex);
            long resultCreateIndex2 = connection.executeUpdate(TableSpace.DEFAULT, "CREATE BRIN INDEX mybrinindex on mytable (n1)", 0, false, Collections.emptyList()).updateCount;
            Assert.assertEquals(1, resultCreateIndex2);
            Assert.assertEquals(1, connection.executeUpdate(TableSpace.DEFAULT, "INSERT INTO mytable (id,n1,n2) values(?,?,?)", 0, false, Arrays.asList("test_0", 1, 2)).updateCount);
            Map<String, Object> newValue = connection.executeUpdate(TableSpace.DEFAULT, "UPDATE mytable set n1= n1+1 where id=?", 0, true, Arrays.asList("test_0")).newvalue;
            assertEquals(Long.valueOf(2), newValue.get("n1"));
            server.getManager().checkpoint();
            server.getManager().checkpoint();
            Assert.assertEquals(1, connection.executeUpdate(TableSpace.DEFAULT, "INSERT INTO mytable (id,n1,n2) values(?,?,?)", 0, false, Arrays.asList("test_1", 2, 2)).updateCount);
            server.getManager().checkpoint();
            try (DataScanner scan = TestUtils.scan(server.getManager(), "SELECT * FROM mytable WHERE n2 = ?", Arrays.asList(2))) {
                assertEquals(2, scan.consume().size());
            }
            try (DataScanner scan = TestUtils.scan(server.getManager(), "SELECT * FROM mytable WHERE n1 = ?", Arrays.asList(2))) {
                assertEquals(2, scan.consume().size());
            }
        }
    }
    try (Server server = new Server(serverConfiguration)) {
        server.start();
        server.waitForStandaloneBoot();
        try (DataScanner scan = TestUtils.scan(server.getManager(), "SELECT * FROM mytable WHERE n2 = ?", Arrays.asList(2))) {
            assertEquals(2, scan.consume().size());
        }
        try (DataScanner scan = TestUtils.scan(server.getManager(), "SELECT * FROM mytable WHERE n1 = ?", Arrays.asList(2))) {
            assertEquals(2, scan.consume().size());
        }
    }
}