Package org.apache.bookkeeper.client

Examples of org.apache.bookkeeper.client.LedgerHandle

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    @Test(timeout=30000)
    public void testIndexCorruption() throws Exception {
        LedgerManagerFactory mFactory = LedgerManagerFactory.newLedgerManagerFactory(bsConfs.get(0), zkc);
        LedgerUnderreplicationManager underReplicationManager = mFactory.newLedgerUnderreplicationManager();

        LedgerHandle lh = bkc.createLedger(3, 3, DigestType.CRC32, "passwd".getBytes());
        long ledgerToCorrupt = lh.getId();
        for (int i = 0; i < 100; i++) {
            lh.addEntry("testdata".getBytes());
        }
        lh.close();

        // push ledgerToCorrupt out of page cache (bookie is configured to only use 1 page)
        lh = bkc.createLedger(3, 3, DigestType.CRC32, "passwd".getBytes());
        for (int i = 0; i < 100; i++) {
            lh.addEntry("testdata".getBytes());
        }
        lh.close();

        BookieAccessor.forceFlush(bs.get(0).getBookie());

        File ledgerDir = bsConfs.get(0).getLedgerDirs()[0];
        ledgerDir = Bookie.getCurrentDirectory(ledgerDir);
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        LedgerManagerFactory mFactory = LedgerManagerFactory.newLedgerManagerFactory(bsConfs.get(0), zkc);
        final LedgerUnderreplicationManager underReplicationManager = mFactory.newLedgerUnderreplicationManager();
        final int numLedgers = 100;

        for (int i = 0; i < numLedgers; i++) {
            LedgerHandle lh = bkc.createLedger(3, 3, DigestType.CRC32, "passwd".getBytes());

            for (int j = 0; j < 100; j++) {
                lh.addEntry("testdata".getBytes());
            }
            lh.close();
        }
        underReplicationManager.disableLedgerReplication();

        final AtomicInteger numReads = new AtomicInteger(0);
        ServerConfiguration conf = killBookie(0);
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        }

        final int numLedgers = 100;
        List<Long> ids = new LinkedList<Long>();
        for (int i = 0; i < numLedgers; i++) {
            LedgerHandle lh = bkc.createLedger(3, 3, DigestType.CRC32, "passwd".getBytes());
            ids.add(lh.getId());
            for (int j = 0; j < 10; j++) {
                lh.addEntry("testdata".getBytes());
            }
            lh.close();
        }
        final Auditor auditor = new Auditor(
                StringUtils.addrToString(Bookie.getBookieAddress(bsConfs.get(0))),
                bsConfs.get(0), zkc);
        final AtomicBoolean exceptionCaught = new AtomicBoolean(false);
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    @Test(timeout=600000) // 10 minutes
    public void testAuditingDuringRollingRestart() throws Exception {
        LedgerManagerFactory mFactory = LedgerManagerFactory.newLedgerManagerFactory(bsConfs.get(0), zkc);
        final LedgerUnderreplicationManager underReplicationManager = mFactory.newLedgerUnderreplicationManager();

        LedgerHandle lh = bkc.createLedger(3, 3, DigestType.CRC32, "passwd".getBytes());
        for (int i = 0; i < 10; i++) {
            lh.asyncAddEntry("foobar".getBytes(), new TestCallbacks.AddCallbackFuture(), null);
        }
        lh.addEntry("foobar".getBytes());
        lh.close();

        assertEquals("shouldn't be anything under replicated",
                     underReplicationManager.pollLedgerToRereplicate(), -1);
        underReplicationManager.disableLedgerReplication();
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    private void rereplicate() throws InterruptedException, BKException,
            UnavailableException {
        long ledgerIdToReplicate = underreplicationManager
                .getLedgerToRereplicate();
        LOG.debug("Going to replicate the fragments of the ledger: {}", ledgerIdToReplicate);
        LedgerHandle lh;
        try {
            lh = admin.openLedgerNoRecovery(ledgerIdToReplicate);
        } catch (BKNoSuchLedgerExistsException e) {
            // Ledger might have been deleted by user
            LOG.info("BKNoSuchLedgerExistsException while opening "
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    private void deferLedgerLockRelease(final long ledgerId) {
        long gracePeriod = this.openLedgerRereplicationGracePeriod;
        TimerTask timerTask = new TimerTask() {
            @Override
            public void run() {
                LedgerHandle lh = null;
                try {
                    lh = admin.openLedgerNoRecovery(ledgerId);
                    if (isLastSegmentOpenAndMissingBookies(lh)) {
                        lh = admin.openLedger(ledgerId);
                    }

                    Set<LedgerFragment> fragments = getUnderreplicatedFragments(lh);
                    for (LedgerFragment fragment : fragments) {
                        if (!fragment.isClosed()) {
                            lh = admin.openLedger(ledgerId);
                            break;
                        }
                    }
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                    LOG.info("InterruptedException "
                            + "while replicating fragments", e);
                } catch (BKNoSuchLedgerExistsException bknsle) {
                    LOG.debug("Ledger was deleted, safe to continue", bknsle);
                } catch (BKException e) {
                    LOG.error("BKException while fencing the ledger"
                            + " for rereplication of postponed ledgers", e);
                } finally {
                    try {
                        if (lh != null) {
                            lh.close();
                        }
                    } catch (InterruptedException e) {
                        Thread.currentThread().interrupt();
                        LOG.info("InterruptedException while closing "
                                + "ledger", e);
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        long entriesRead = 0;
        long lastRead = 0;
        int nochange = 0;

        long absoluteLimit = 5000000;
        LedgerHandle lh = null;
        try {
            bk = new BookKeeper(conf);
            while (true) {
                lh = bk.openLedgerNoRecovery(ledgerId, BookKeeper.DigestType.CRC32,
                                             passwd);
                long lastConfirmed = Math.min(lh.getLastAddConfirmed(), absoluteLimit);
                if (lastConfirmed == lastRead) {
                    nochange++;
                    if (nochange == 10) {
                        break;
                    } else {
                        Thread.sleep(1000);
                        continue;
                    }
                } else {
                    nochange = 0;
                }
                long starttime = System.nanoTime();

                while (lastRead < lastConfirmed) {
                    long nextLimit = lastRead + 100000;
                    long readTo = Math.min(nextLimit, lastConfirmed);
                    Enumeration<LedgerEntry> entries = lh.readEntries(lastRead+1, readTo);
                    lastRead = readTo;
                    while (entries.hasMoreElements()) {
                        LedgerEntry e = entries.nextElement();
                        entriesRead++;
                        if ((entriesRead % 10000) == 0) {
                            LOG.info("{} entries read", entriesRead);
                        }
                    }
                }
                long endtime = System.nanoTime();
                time += endtime - starttime;

                lh.close();
                lh = null;
                Thread.sleep(1000);
            }
        } catch (InterruptedException ie) {
            // ignore
        } catch (Exception e ) {
            LOG.error("Exception in reader", e);
        } finally {
            LOG.info("Read {} in {}ms", entriesRead, time/1000/1000);

            try {
                if (lh != null) {
                    lh.close();
                }
                if (bk != null) {
                    bk.close();
                }
            } catch (Exception e) {
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        }
       
        /*
         * Create ledger.
         */
        LedgerHandle beforelh = null;
        try{
            beforelh = bk.createLedger("".getBytes());
        } catch (KeeperException ke){
            LOG.error("Error creating a ledger", ke);
            fail("ZooKeeper error");           
        } catch (BKException bke){
            LOG.error("BookKeeper error");
            fail("BookKeeper error");
        } catch (InterruptedException ie) {
            LOG.error(ie);
            fail("Failure due to interrupted exception");
        } catch (IOException ioe) {
            LOG.error(ioe);
            fail("Failure due to IO exception");
        }
       
        /*
         * Write a 1000 entries.
         */
        try{
            String tmp = "BookKeeper is cool!";
            for(int i = 0; i < 1000; i++){
                bk.addEntry(beforelh, tmp.getBytes());
            }
        } catch(InterruptedException e){
            LOG.error("Interrupted when adding entry", e);
            fail("Couldn't finish adding entries");
        }
       
        ///*
        // * Sleep.
        // */
        //try{
        //    Thread.sleep(2000);
        //} catch(InterruptedException e){
        //    LOG.error("Interrupted while sleeping", e);
        //    fail("Couldn't finish sleeping");
        //}
       
        /*
         * Try to open ledger.
         */
        try{
            LedgerHandle afterlh = bk.openLedger(beforelh.getId(), "".getBytes());
           
            /*
             * Check if has recovered properly.
             */
            assertTrue("Has not recovered correctly: " + afterlh.getLast(), afterlh.getLast() == 1000);
        } catch (KeeperException e) {
            LOG.error("Error when opening ledger", e);
            fail("Couldn't open ledger");
        } catch (InterruptedException ie) {
            LOG.error("Interrupted exception", ie);
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          lastTxId = recoverLastTxId(l, false);
        }
        // Check once again, required in case of InProgress and is case of any
        // gap.
        if (fromTxId >= l.getFirstTxId() && fromTxId <= lastTxId) {
          LedgerHandle h;
          if (l.isInProgress()) { // we don't want to fence the current journal
            h = bkc.openLedgerNoRecovery(l.getLedgerId(),
                BookKeeper.DigestType.MAC, digestpw.getBytes());
          } else {
            h = bkc.openLedger(l.getLedgerId(), BookKeeper.DigestType.MAC,
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   * Find the id of the last edit log transaction writen to a edit log
   * ledger.
   */
  private long recoverLastTxId(EditLogLedgerMetadata l, boolean fence)
      throws IOException, SegmentEmptyException {
    LedgerHandle lh = null;
    try {
      if (fence) {
        lh = bkc.openLedger(l.getLedgerId(),
                            BookKeeper.DigestType.MAC,
                            digestpw.getBytes());
      } else {
        lh = bkc.openLedgerNoRecovery(l.getLedgerId(),
                                      BookKeeper.DigestType.MAC,
                                      digestpw.getBytes());
      }
    } catch (BKException bke) {
      throw new IOException("Exception opening ledger for " + l, bke);
    } catch (InterruptedException ie) {
      Thread.currentThread().interrupt();
      throw new IOException("Interrupted opening ledger for " + l, ie);
    }

    BookKeeperEditLogInputStream in = null;

    try {
      long lastAddConfirmed = lh.getLastAddConfirmed();
      if (lastAddConfirmed == -1) {
        throw new SegmentEmptyException();
      }

      in = new BookKeeperEditLogInputStream(lh, l, lastAddConfirmed);
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Related Classes of org.apache.bookkeeper.client.LedgerHandle

  • org.apache.bookkeeper.benchmark.BenchBookie
  • org.apache.bookkeeper.benchmark.BenchReadThroughputLatency
  • org.apache.bookkeeper.benchmark.BenchThroughputLatency
  • org.apache.bookkeeper.benchmark.TestBenchmark
  • org.apache.bookkeeper.benchmark.TestClient$BKClient
  • org.apache.bookkeeper.bookie.BookieShell$SimpleTestCmd
  • org.apache.bookkeeper.bookie.BookieShutdownTest
  • org.apache.bookkeeper.bookie.CompactionTest
  • org.apache.bookkeeper.bookie.IndexCorruptionTest
  • org.apache.bookkeeper.client.BookieHandle
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