Examples with LogSequenceNumber herddb.log.LogSequenceNumber used on opensource projects

Example 46 with LogSequenceNumber

use of herddb.log.LogSequenceNumber in project herddb by diennea.

the class MemoryDataStorageManager method evaluateLogSequenceNumber.

private LogSequenceNumber evaluateLogSequenceNumber(String string) {
    final Matcher matcher = LOG_SEQUENCE_PATTERN.matcher(string);
    if (!matcher.matches()) {
        return null;
    }
    try {
        long ledgerId = Long.parseLong(matcher.group("ledgerId"));
        long offset = Long.parseLong(matcher.group("offset"));
        return new LogSequenceNumber(ledgerId, offset);
    } catch (NumberFormatException e) {
        return null;
    }
}

Example 47 with LogSequenceNumber

use of herddb.log.LogSequenceNumber in project herddb by diennea.

the class Transaction method deserialize.

public static Transaction deserialize(String tableSpace, ExtendedDataInputStream in) throws IOException {
    // version
    long version = in.readVLong();
    // flags for future implementations
    long flags = in.readVLong();
    if (version != 1 || flags != 0) {
        throw new IOException("corrupted transaction file");
    }
    long id = in.readZLong();
    long ledgerId = in.readZLong();
    long offset = in.readZLong();
    LogSequenceNumber lastSequenceNumber = new LogSequenceNumber(ledgerId, offset);
    Transaction t = new Transaction(id, tableSpace, new CommitLogResult(lastSequenceNumber, false, true));
    int size = in.readVInt();
    for (int i = 0; i < size; i++) {
        String table = in.readUTF();
        int numRecords = in.readVInt();
        Map<Bytes, Record> records = new HashMap<>();
        for (int k = 0; k < numRecords; k++) {
            byte[] key = in.readArray();
            byte[] value = in.readArray();
            Bytes bKey = Bytes.from_array(key);
            Record record = new Record(bKey, Bytes.from_array(value));
            records.put(bKey, record);
        }
        t.changedRecords.put(table, records);
    }
    size = in.readVInt();
    for (int i = 0; i < size; i++) {
        String table = in.readUTF();
        int numRecords = in.readVInt();
        Map<Bytes, Record> records = new HashMap<>();
        for (int k = 0; k < numRecords; k++) {
            byte[] key = in.readArray();
            byte[] value = in.readArray();
            Bytes bKey = Bytes.from_array(key);
            Record record = new Record(bKey, Bytes.from_array(value));
            records.put(bKey, record);
        }
        t.newRecords.put(table, records);
    }
    size = in.readVInt();
    for (int i = 0; i < size; i++) {
        String table = in.readUTF();
        int numRecords = in.readVInt();
        Set<Bytes> records = new HashSet<>();
        for (int k = 0; k < numRecords; k++) {
            byte[] key = in.readArray();
            records.add(Bytes.from_array(key));
        }
        t.deletedRecords.put(table, records);
    }
    size = in.readVInt();
    if (size > 0) {
        t.newTables = new HashMap<>();
        for (int i = 0; i < size; i++) {
            byte[] data = in.readArray();
            Table table = Table.deserialize(data);
            t.newTables.put(table.name, table);
        }
    }
    size = in.readVInt();
    if (size > 0) {
        t.droppedTables = new HashSet<>();
        for (int i = 0; i < size; i++) {
            t.droppedTables.add(in.readUTF());
        }
    }
    size = in.readVInt();
    if (size > 0) {
        t.newIndexes = new HashMap<>();
        for (int i = 0; i < size; i++) {
            byte[] data = in.readArray();
            Index index = Index.deserialize(data);
            t.newIndexes.put(index.name, index);
        }
    }
    size = in.readVInt();
    if (size > 0) {
        t.droppedIndexes = new HashSet<>();
        for (int i = 0; i < size; i++) {
            t.droppedIndexes.add(in.readUTF());
        }
    }
    return t;
}

Example 48 with LogSequenceNumber

use of herddb.log.LogSequenceNumber in project herddb by diennea.

the class Transaction method updateLastSequenceNumber.

private boolean updateLastSequenceNumber(CommitLogResult writeResult) throws LogNotAvailableException {
    touch();
    if (writeResult.deferred) {
        deferredWrites.add(writeResult);
        return false;
    }
    LogSequenceNumber sequenceNumber = writeResult.getLogSequenceNumber();
    if (lastSequenceNumber != null && lastSequenceNumber.after(sequenceNumber)) {
        return true;
    }
    this.lastSequenceNumber = sequenceNumber;
    return false;
}

Example 49 with LogSequenceNumber

use of herddb.log.LogSequenceNumber in project herddb by diennea.

the class BootFollowerTest method testFollowAfterLedgerRollback.

@Test
public void testFollowAfterLedgerRollback() 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().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1", "server2")), "server1", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            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);
            assertTrue(server_2.getManager().waitForTablespace(TableSpace.DEFAULT, 60000, false));
            TableSpaceManager tableSpaceManager = server_1.getManager().getTableSpaceManager(TableSpace.DEFAULT);
            BookkeeperCommitLog logServer1 = (BookkeeperCommitLog) tableSpaceManager.getLog();
            logServer1.rollNewLedger();
            logServer1.rollNewLedger();
            logServer1.rollNewLedger();
            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);
            // 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());
            }
            BookkeeperCommitLog logServer2 = (BookkeeperCommitLog) tableSpaceManager.getLog();
            LogSequenceNumber lastSequenceNumberServer1 = logServer1.getLastSequenceNumber();
            LogSequenceNumber lastSequenceNumberServer2 = logServer2.getLastSequenceNumber();
            System.out.println("POS AT SERVER 1: " + lastSequenceNumberServer1);
            System.out.println("POS AT SERVER 2: " + lastSequenceNumberServer2);
            assertTrue(lastSequenceNumberServer1.equals(lastSequenceNumberServer2) || // maybe after due to NOOPs
            lastSequenceNumberServer1.after(lastSequenceNumberServer2));
        }
    }
}

Example 50 with LogSequenceNumber

use of herddb.log.LogSequenceNumber in project herddb by diennea.

the class EdgeCasesFollowerTest method testLeaderOnlineLogNoMoreAvailableDataAlreadyPresent.

@Test
public void testLeaderOnlineLogNoMoreAvailableDataAlreadyPresent() throws Exception {
    final AtomicInteger countErase = new AtomicInteger();
    SystemInstrumentation.addListener(new SystemInstrumentation.SingleInstrumentationPointListener("eraseTablespaceData") {

        @Override
        public void acceptSingle(Object... args) throws Exception {
            countErase.incrementAndGet();
        }
    });
    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);
    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);
    ServerConfiguration serverconfig_2 = serverconfig_1.copy().set(ServerConfiguration.PROPERTY_NODEID, "server2").set(ServerConfiguration.PROPERTY_BASEDIR, folder.newFolder().toPath().toAbsolutePath());
    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();
    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);
        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);
        server_1.getManager().executeStatement(new AlterTableSpaceStatement(TableSpace.DEFAULT, new HashSet<>(Arrays.asList("server1", "server2")), "server1", 1, 0), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        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());
        }
    }
    String tableSpaceUUID;
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        {
            ZookeeperMetadataStorageManager man = (ZookeeperMetadataStorageManager) server_1.getMetadataStorageManager();
            tableSpaceUUID = man.describeTableSpace(TableSpace.DEFAULT).uuid;
            LedgersInfo ledgersList = ZookeeperMetadataStorageManager.readActualLedgersListFromZookeeper(man.getZooKeeper(), testEnv.getPath() + "/ledgers", tableSpaceUUID);
            assertEquals(2, ledgersList.getActiveLedgers().size());
        }
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 5, "s", "5")), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        server_1.getManager().checkpoint();
    }
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        {
            ZookeeperMetadataStorageManager man = (ZookeeperMetadataStorageManager) server_1.getMetadataStorageManager();
            LedgersInfo ledgersList = ZookeeperMetadataStorageManager.readActualLedgersListFromZookeeper(man.getZooKeeper(), testEnv.getPath() + "/ledgers", tableSpaceUUID);
            assertEquals(2, ledgersList.getActiveLedgers().size());
        }
        server_1.getManager().executeUpdate(new InsertStatement(TableSpace.DEFAULT, "t1", RecordSerializer.makeRecord(table, "c", 6, "s", "6")), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        {
            ZookeeperMetadataStorageManager man = (ZookeeperMetadataStorageManager) server_1.getMetadataStorageManager();
            LedgersInfo ledgersList = ZookeeperMetadataStorageManager.readActualLedgersListFromZookeeper(man.getZooKeeper(), testEnv.getPath() + "/ledgers", tableSpaceUUID);
            assertEquals(2, ledgersList.getActiveLedgers().size());
        }
        server_1.getManager().checkpoint();
    }
    assertEquals(0, countErase.get());
    LogSequenceNumber server2checkpointPosition;
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        // start server_2, and flush data locally
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            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(1), null, false), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
                if (found.found()) {
                    break;
                }
                Thread.sleep(100);
            }
            // force a checkpoint, data is flushed to disk
            server_2.getManager().checkpoint();
            server2checkpointPosition = server_2.getManager().getTableSpaceManager(TableSpace.DEFAULT).getLog().getLastSequenceNumber();
            System.out.println("server2 checkpoint time: " + server2checkpointPosition);
        }
    }
    // start again server_1, in order to create a new ledger
    try (Server server_1 = new Server(serverconfig_1)) {
        server_1.start();
        server_1.waitForStandaloneBoot();
        BookkeeperCommitLog ll = (BookkeeperCommitLog) server_1.getManager().getTableSpaceManager(TableSpace.DEFAULT).getLog();
        // server_1 make much  progress
        ll.rollNewLedger();
        ll.rollNewLedger();
        ll.rollNewLedger();
        ll.rollNewLedger();
        ll.rollNewLedger();
        ll.rollNewLedger();
        ll.rollNewLedger();
        ll.rollNewLedger();
        // a checkpoint will delete old ledgers
        server_1.getManager().checkpoint();
        {
            ZookeeperMetadataStorageManager man = (ZookeeperMetadataStorageManager) server_1.getMetadataStorageManager();
            LedgersInfo ledgersList = ZookeeperMetadataStorageManager.readActualLedgersListFromZookeeper(man.getZooKeeper(), testEnv.getPath() + "/ledgers", tableSpaceUUID);
            System.out.println("ledgerList: " + ledgersList);
            assertEquals(1, ledgersList.getActiveLedgers().size());
            assertTrue(!ledgersList.getActiveLedgers().contains(ledgersList.getFirstLedger()));
            // we want to be sure that server_2 cannot recover from log
            assertTrue(!ledgersList.getActiveLedgers().contains(server2checkpointPosition.ledgerId));
        }
        assertEquals(1, countErase.get());
        // but the server already has local data, tablespace directory must be erased
        try (Server server_2 = new Server(serverconfig_2)) {
            server_2.start();
            assertTrue(server_2.getManager().waitForTablespace(TableSpace.DEFAULT, 60000, false));
            assertTrue(server_2.getManager().get(new GetStatement(TableSpace.DEFAULT, "t1", Bytes.from_int(1), null, false), StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION).found());
            assertEquals(2, countErase.get());
            TranslatedQuery translated = server_2.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_2.getManager().scan(statement, translated.context, TransactionContext.NO_TRANSACTION)) {
                assertEquals(1, scan.consume().size());
            }
        }
    }
}