Examples of org.apache.bookkeeper.client.LedgerHandle

org.apache.bookkeeper.client.LedgerHandle
Ledger handle contains ledger metadata and is used to access the read and write operations to a ledger.

     * other replication worker also should compete for the replication.
     */
    @Test(timeout = 90000)
    public void test2RWsShouldCompeteForReplicationOf2FragmentsAndCompleteReplication()
            throws Exception {
        LedgerHandle lh = bkc.createLedger(2, 2, BookKeeper.DigestType.CRC32,
                TESTPASSWD);


        for (int i = 0; i < 10; i++) {
            lh.addEntry(data);
        }
        lh.close();
        InetSocketAddress replicaToKill = LedgerHandleAdapter
                .getLedgerMetadata(lh).getEnsembles().get(0L).get(0);
        LOG.info("Killing Bookie", replicaToKill);
        ServerConfiguration killedBookieConfig = killBookie(replicaToKill);


        killAllBookies(lh, null);
        // Starte RW1
        int startNewBookie1 = startNewBookie();
        InetSocketAddress newBkAddr1 = new InetSocketAddress(InetAddress
                .getLocalHost().getHostAddress(), startNewBookie1);
        LOG.info("New Bookie addr :" + newBkAddr1);
        ReplicationWorker rw1 = new ReplicationWorker(zkc, baseConf, newBkAddr1);


        // Starte RW2
        int startNewBookie2 = startNewBookie();
        InetSocketAddress newBkAddr2 = new InetSocketAddress(InetAddress
                .getLocalHost().getHostAddress(), startNewBookie2);
        LOG.info("New Bookie addr :" + newBkAddr2);
        ZooKeeperWatcherBase w = new ZooKeeperWatcherBase(10000);
        ZooKeeper zkc1 = ZkUtils.createConnectedZookeeperClient(
                zkUtil.getZooKeeperConnectString(), w);
        ReplicationWorker rw2 = new ReplicationWorker(zkc1, baseConf,
                newBkAddr2);
        rw1.start();
        rw2.start();


        try {
            underReplicationManager.markLedgerUnderreplicated(lh.getId(),
                    replicaToKill.toString());
            int counter = 10;
            while (counter-- > 0) {
                assertTrue("Expecting that replication should not complete",
                        ReplicationTestUtil.isLedgerInUnderReplication(zkc, lh
                                .getId(), basePath));
                Thread.sleep(100);
            }
            // restart killed bookie
            bs.add(startBookie(killedBookieConfig));
            bsConfs.add(killedBookieConfig);
            while (ReplicationTestUtil.isLedgerInUnderReplication(zkc, lh
                    .getId(), basePath)) {
                Thread.sleep(100);
            }
            // Should be able to read the entries from 0-9
            verifyRecoveredLedgers(lh, 0, 9);

View Full Code Here

     * node of the ledger already deleted
     */
    @Test(timeout = 3000)
    public void testRWShouldCleanTheLedgerFromUnderReplicationIfLedgerAlreadyDeleted()
            throws Exception {
        LedgerHandle lh = bkc.createLedger(2, 2, BookKeeper.DigestType.CRC32,
                TESTPASSWD);


        for (int i = 0; i < 10; i++) {
            lh.addEntry(data);
        }
        lh.close();
        InetSocketAddress replicaToKill = LedgerHandleAdapter
                .getLedgerMetadata(lh).getEnsembles().get(0L).get(0);
        LOG.info("Killing Bookie", replicaToKill);
        killBookie(replicaToKill);


        int startNewBookie = startNewBookie();
        InetSocketAddress newBkAddr = new InetSocketAddress(InetAddress
                .getLocalHost().getHostAddress(), startNewBookie);
        LOG.info("New Bookie addr :" + newBkAddr);
        ReplicationWorker rw = new ReplicationWorker(zkc, baseConf, newBkAddr);
        rw.start();


        try {
            bkc.deleteLedger(lh.getId()); // Deleting the ledger
            // Also mark ledger as in UnderReplication
            underReplicationManager.markLedgerUnderreplicated(lh.getId(),
                    replicaToKill.toString());
            while (ReplicationTestUtil.isLedgerInUnderReplication(zkc, lh
                    .getId(), basePath)) {
                Thread.sleep(100);
            }
        } finally {
            rw.shutdown();

View Full Code Here


    @Test(timeout = 60000)
    public void testMultipleLedgerReplicationWithReplicationWorker()
            throws Exception {
        // Ledger1
        LedgerHandle lh1 = bkc.createLedger(3, 3, BookKeeper.DigestType.CRC32,
                TESTPASSWD);


        for (int i = 0; i < 10; i++) {
            lh1.addEntry(data);
        }
        InetSocketAddress replicaToKillFromFirstLedger = LedgerHandleAdapter
                .getLedgerMetadata(lh1).getEnsembles().get(0L).get(0);


        LOG.info("Killing Bookie", replicaToKillFromFirstLedger);


        // Ledger2
        LedgerHandle lh2 = bkc.createLedger(3, 3, BookKeeper.DigestType.CRC32,
                TESTPASSWD);


        for (int i = 0; i < 10; i++) {
            lh2.addEntry(data);
        }
        InetSocketAddress replicaToKillFromSecondLedger = LedgerHandleAdapter
                .getLedgerMetadata(lh2).getEnsembles().get(0L).get(0);


        LOG.info("Killing Bookie", replicaToKillFromSecondLedger);


        // Kill ledger1
        killBookie(replicaToKillFromFirstLedger);
        lh1.close();
        // Kill ledger2
        killBookie(replicaToKillFromFirstLedger);
        lh2.close();


        int startNewBookie = startNewBookie();


        InetSocketAddress newBkAddr = new InetSocketAddress(InetAddress
                .getLocalHost().getHostAddress(), startNewBookie);
        LOG.info("New Bookie addr :" + newBkAddr);


        ReplicationWorker rw = new ReplicationWorker(zkc, baseConf, newBkAddr);


        rw.start();
        try {


            // Mark ledger1 and 2 as underreplicated
            underReplicationManager.markLedgerUnderreplicated(lh1.getId(),
                    replicaToKillFromFirstLedger.toString());
            underReplicationManager.markLedgerUnderreplicated(lh2.getId(),
                    replicaToKillFromSecondLedger.toString());


            while (ReplicationTestUtil.isLedgerInUnderReplication(zkc, lh1
                    .getId(), basePath)) {
                Thread.sleep(100);
            }


            while (ReplicationTestUtil.isLedgerInUnderReplication(zkc, lh2
                    .getId(), basePath)) {
                Thread.sleep(100);
            }


            killAllBookies(lh1, newBkAddr);

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     * lock after timeout. Then replication should happen normally.
     */
    @Test(timeout = 60000)
    public void testRWShouldReplicateTheLedgersAfterTimeoutIfLastFragmentIsUR()
            throws Exception {
        LedgerHandle lh = bkc.createLedger(3, 3, BookKeeper.DigestType.CRC32,
                TESTPASSWD);


        for (int i = 0; i < 10; i++) {
            lh.addEntry(data);
        }
        InetSocketAddress replicaToKill = LedgerHandleAdapter
                .getLedgerMetadata(lh).getEnsembles().get(0L).get(0);


        LOG.info("Killing Bookie", replicaToKill);
        killBookie(replicaToKill);


        int startNewBookie = startNewBookie();


        InetSocketAddress newBkAddr = new InetSocketAddress(InetAddress
                .getLocalHost().getHostAddress(), startNewBookie);
        LOG.info("New Bookie addr :" + newBkAddr);


        ReplicationWorker rw = new ReplicationWorker(zkc, baseConf, newBkAddr);


        LedgerManagerFactory mFactory = LedgerManagerFactory
                .newLedgerManagerFactory(baseClientConf, zkc);
        LedgerUnderreplicationManager underReplicationManager = mFactory
                .newLedgerUnderreplicationManager();
        rw.start();
        try {


            underReplicationManager.markLedgerUnderreplicated(lh.getId(),
                    replicaToKill.toString());
            while (ReplicationTestUtil.isLedgerInUnderReplication(zkc, lh
                    .getId(), basePath)) {
                Thread.sleep(100);
            }
            killAllBookies(lh, newBkAddr);
            // Should be able to read the entries from 0-9
            verifyRecoveredLedgers(lh, 0, 9);
            lh = bkc.openLedgerNoRecovery(lh.getId(),
                    BookKeeper.DigestType.CRC32, TESTPASSWD);
            assertFalse("Ledger must have been closed by RW", ClientUtil
                    .isLedgerOpen(lh));
        } finally {
            rw.shutdown();

View Full Code Here

     * underReplication state. Note that RW should not fence such ledgers.
     */
    @Test(timeout = 30000)
    public void testRWShouldReplicateTheLedgersAfterTimeoutIfLastFragmentIsNotUR()
            throws Exception {
        LedgerHandle lh = bkc.createLedger(3, 3, BookKeeper.DigestType.CRC32,
                TESTPASSWD);


        for (int i = 0; i < 10; i++) {
            lh.addEntry(data);
        }
        InetSocketAddress replicaToKill = LedgerHandleAdapter
                .getLedgerMetadata(lh).getEnsembles().get(0L).get(0);


        LOG.info("Killing Bookie", replicaToKill);
        killBookie(replicaToKill);


        int startNewBookie = startNewBookie();


        // Reform ensemble...Making sure that last fragment is not in
        // under-replication
        for (int i = 0; i < 10; i++) {
            lh.addEntry(data);
        }


        InetSocketAddress newBkAddr = new InetSocketAddress(InetAddress
                .getLocalHost().getHostAddress(), startNewBookie);
        LOG.info("New Bookie addr :" + newBkAddr);


        ReplicationWorker rw = new ReplicationWorker(zkc, baseConf, newBkAddr);


        LedgerManagerFactory mFactory = LedgerManagerFactory
                .newLedgerManagerFactory(baseClientConf, zkc);
        LedgerUnderreplicationManager underReplicationManager = mFactory
                .newLedgerUnderreplicationManager();


        rw.start();
        try {


            underReplicationManager.markLedgerUnderreplicated(lh.getId(),
                    replicaToKill.toString());
            while (ReplicationTestUtil.isLedgerInUnderReplication(zkc, lh
                    .getId(), basePath)) {
                Thread.sleep(100);
            }


            killAllBookies(lh, newBkAddr);


            // Should be able to read the entries from 0-9
            verifyRecoveredLedgers(lh, 0, 9);
            lh = bkc.openLedgerNoRecovery(lh.getId(),
                    BookKeeper.DigestType.CRC32, TESTPASSWD);


            // Ledger should be still in open state
            assertTrue("Ledger must have been closed by RW", ClientUtil
                    .isLedgerOpen(lh));

View Full Code Here

    /**
     * Test that if the local bookie turns out to be readonly, then no point in running RW. So RW should shutdown.
     */
    @Test(timeout = 20000)
    public void testRWShutdownOnLocalBookieReadonlyTransition() throws Exception {
        LedgerHandle lh = bkc.createLedger(3, 3, BookKeeper.DigestType.CRC32, TESTPASSWD);


        for (int i = 0; i < 10; i++) {
            lh.addEntry(data);
        }
        InetSocketAddress replicaToKill = LedgerHandleAdapter.getLedgerMetadata(lh).getEnsembles().get(0L).get(0);


        LOG.info("Killing Bookie", replicaToKill);
        killBookie(replicaToKill);


        int newBkPort = startNewBookie();
        for (int i = 0; i < 10; i++) {
            lh.addEntry(data);
        }


        InetSocketAddress newBkAddr = new InetSocketAddress(InetAddress.getLocalHost().getHostAddress(), newBkPort);
        LOG.info("New Bookie addr :" + newBkAddr);


        ReplicationWorker rw = new ReplicationWorker(zkc, baseConf, newBkAddr);


        rw.start();
        try {
            BookieServer newBk = bs.get(bs.size() - 1);
            bsConfs.get(bsConfs.size() - 1).setReadOnlyModeEnabled(true);
            newBk.getBookie().transitionToReadOnlyMode();
            underReplicationManager.markLedgerUnderreplicated(lh.getId(), replicaToKill.toString());
            while (ReplicationTestUtil.isLedgerInUnderReplication(zkc, lh.getId(), basePath) && rw.isRunning()) {
                Thread.sleep(100);
            }
            assertFalse("RW should shutdown if the bookie is readonly", rw.isRunning());
        } finally {
            rw.shutdown();

View Full Code Here

        }
    }


    private void verifyRecoveredLedgers(LedgerHandle lh, long startEntryId,
            long endEntryId) throws BKException, InterruptedException {
        LedgerHandle lhs = bkc.openLedgerNoRecovery(lh.getId(),
                BookKeeper.DigestType.CRC32, TESTPASSWD);
        Enumeration<LedgerEntry> entries = lhs.readEntries(startEntryId,
                endEntryId);
        assertTrue("Should have the elements", entries.hasMoreElements());
        while (entries.hasMoreElements()) {
            LedgerEntry entry = entries.nextElement();
            assertEquals("TestReplicationWorker", new String(entry.getEntry()));

View Full Code Here

     */
    public void testBookieShouldServeAsReadOnly() throws Exception {
        killBookie(0);
        baseConf.setReadOnlyModeEnabled(true);
        startNewBookie();
        LedgerHandle ledger = bkc.createLedger(2, 2, DigestType.MAC,
                "".getBytes());


        // Check new bookie with readonly mode enabled.
        File[] ledgerDirs = bsConfs.get(1).getLedgerDirs();
        assertEquals("Only one ledger dir should be present", 1,
                ledgerDirs.length);
        Bookie bookie = bs.get(1).getBookie();
        LedgerDirsManager ledgerDirsManager = bookie.getLedgerDirsManager();


        for (int i = 0; i < 10; i++) {
            ledger.addEntry("data".getBytes());
        }


        // Now add the current ledger dir to filled dirs list
        ledgerDirsManager.addToFilledDirs(new File(ledgerDirs[0], "current"));


        try {
            ledger.addEntry("data".getBytes());
        } catch (BKException.BKNotEnoughBookiesException e) {
            // Expected
        }


        assertTrue("Bookie should be running and converted to readonly mode",
                bookie.isRunning() && bookie.isReadOnly());


        // Now kill the other bookie and read entries from the readonly bookie
        killBookie(0);


        Enumeration<LedgerEntry> readEntries = ledger.readEntries(0, 9);
        while (readEntries.hasMoreElements()) {
            LedgerEntry entry = readEntries.nextElement();
            assertEquals("Entry should contain correct data", "data",
                    new String(entry.getEntry()));
        }

View Full Code Here

    public void testBookieShutdownIfReadOnlyModeNotEnabled() throws Exception {
        File[] ledgerDirs = bsConfs.get(1).getLedgerDirs();
        assertEquals("Only one ledger dir should be present", 1,
                ledgerDirs.length);
        Bookie bookie = bs.get(1).getBookie();
        LedgerHandle ledger = bkc.createLedger(2, 2, DigestType.MAC,
                "".getBytes());
        LedgerDirsManager ledgerDirsManager = bookie.getLedgerDirsManager();


        for (int i = 0; i < 10; i++) {
            ledger.addEntry("data".getBytes());
        }


        // Now add the current ledger dir to filled dirs list
        ledgerDirsManager.addToFilledDirs(new File(ledgerDirs[0], "current"));


        try {
            ledger.addEntry("data".getBytes());
        } catch (BKException.BKNotEnoughBookiesException e) {
            // Expected
        }


        // wait for up to 10 seconds for bookie to shut down

View Full Code Here


        File[] ledgerDirs = bsConfs.get(1).getLedgerDirs();
        assertEquals("Only one ledger dir should be present", 2,
                ledgerDirs.length);
        Bookie bookie = bs.get(1).getBookie();
        LedgerHandle ledger = bkc.createLedger(2, 2, DigestType.MAC,
                "".getBytes());
        LedgerDirsManager ledgerDirsManager = bookie.getLedgerDirsManager();


        for (int i = 0; i < 10; i++) {
            ledger.addEntry("data".getBytes());
        }


        // Now add the current ledger dir to filled dirs list
        ledgerDirsManager.addToFilledDirs(new File(ledgerDirs[0], "current"));
        for (int i = 0; i < 10; i++) {
            ledger.addEntry("data".getBytes());
        }
        assertEquals("writable dirs should have one dir", 1, ledgerDirsManager
                .getWritableLedgerDirs().size());
        assertTrue("Bookie should shutdown if readOnlyMode not enabled",
                bookie.isAlive());

View Full Code Here

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