Examples with BookKeeper org.apache.bookkeeper.client.BookKeeper used on opensource projects

Example 66 with BookKeeper

use of org.apache.bookkeeper.client.BookKeeper in project distributedlog by twitter.

the class LedgerReadBenchmark method benchmark.

@Override
protected void benchmark(DistributedLogNamespace namespace, String logName, StatsLogger statsLogger) {
    DistributedLogManager dlm = null;
    while (null == dlm) {
        try {
            dlm = namespace.openLog(streamName);
        } catch (IOException ioe) {
            logger.warn("Failed to create dlm for stream {} : ", streamName, ioe);
        }
        if (null == dlm) {
            try {
                TimeUnit.MILLISECONDS.sleep(conf.getZKSessionTimeoutMilliseconds());
            } catch (InterruptedException e) {
            }
        }
    }
    logger.info("Created dlm for stream {}.", streamName);
    List<LogSegmentMetadata> segments = null;
    while (null == segments) {
        try {
            segments = dlm.getLogSegments();
        } catch (IOException ioe) {
            logger.warn("Failed to get log segments for stream {} : ", streamName, ioe);
        }
        if (null == segments) {
            try {
                TimeUnit.MILLISECONDS.sleep(conf.getZKSessionTimeoutMilliseconds());
            } catch (InterruptedException e) {
            }
        }
    }
    final Counter readCounter = statsLogger.getCounter("reads");
    logger.info("Reading from log segments : {}", segments);
    ZooKeeperClient zkc = ZooKeeperClientBuilder.newBuilder().uri(uri).name("benchmark-zkc").sessionTimeoutMs(conf.getZKSessionTimeoutMilliseconds()).zkAclId(null).build();
    BKDLConfig bkdlConfig;
    try {
        bkdlConfig = BKDLConfig.resolveDLConfig(zkc, uri);
    } catch (IOException e) {
        return;
    }
    BookKeeper bk;
    try {
        bk = BookKeeperClientBuilder.newBuilder().name("benchmark-bkc").dlConfig(conf).zkServers(bkdlConfig.getBkZkServersForReader()).ledgersPath(bkdlConfig.getBkLedgersPath()).build().get();
    } catch (IOException e) {
        return;
    }
    final int readConcurrency = conf.getInt("ledger_read_concurrency", 1000);
    boolean streamRead = conf.getBoolean("ledger_stream_read", true);
    try {
        for (LogSegmentMetadata segment : segments) {
            Stopwatch stopwatch = Stopwatch.createStarted();
            long lid = segment.getLedgerId();
            LedgerHandle lh = bk.openLedgerNoRecovery(lid, BookKeeper.DigestType.CRC32, conf.getBKDigestPW().getBytes(UTF_8));
            logger.info("It took {} ms to open log segment {}", new Object[] { stopwatch.elapsed(TimeUnit.MILLISECONDS), (lh.getLastAddConfirmed() + 1), segment });
            stopwatch.reset().start();
            Runnable reader;
            if (streamRead) {
                reader = new LedgerStreamReader(lh, new BookkeeperInternalCallbacks.ReadEntryListener() {

                    @Override
                    public void onEntryComplete(int rc, LedgerHandle lh, LedgerEntry entry, Object ctx) {
                        readCounter.inc();
                    }
                }, readConcurrency);
            } else {
                reader = new LedgerStreamReader(lh, new BookkeeperInternalCallbacks.ReadEntryListener() {

                    @Override
                    public void onEntryComplete(int rc, LedgerHandle lh, LedgerEntry entry, Object ctx) {
                        readCounter.inc();
                    }
                }, readConcurrency);
            }
            reader.run();
            logger.info("It took {} ms to complete reading {} entries from log segment {}", new Object[] { stopwatch.elapsed(TimeUnit.MILLISECONDS), (lh.getLastAddConfirmed() + 1), segment });
        }
    } catch (Exception e) {
        logger.error("Error on reading bk ", e);
    }
}

Example 67 with BookKeeper

use of org.apache.bookkeeper.client.BookKeeper in project distributedlog by twitter.

the class DLAuditor method calculateLedgerSpaceUsage.

private long calculateLedgerSpaceUsage(BookKeeperClient bkc, final ExecutorService executorService) throws IOException {
    final AtomicLong totalBytes = new AtomicLong(0);
    final AtomicLong totalEntries = new AtomicLong(0);
    final AtomicLong numLedgers = new AtomicLong(0);
    LedgerManager lm = BookKeeperAccessor.getLedgerManager(bkc.get());
    final SettableFuture<Void> doneFuture = SettableFuture.create();
    final BookKeeper bk = bkc.get();
    BookkeeperInternalCallbacks.Processor<Long> collector = new BookkeeperInternalCallbacks.Processor<Long>() {

        @Override
        public void process(final Long lid, final AsyncCallback.VoidCallback cb) {
            numLedgers.incrementAndGet();
            executorService.submit(new Runnable() {

                @Override
                public void run() {
                    bk.asyncOpenLedgerNoRecovery(lid, BookKeeper.DigestType.CRC32, conf.getBKDigestPW().getBytes(UTF_8), new org.apache.bookkeeper.client.AsyncCallback.OpenCallback() {

                        @Override
                        public void openComplete(int rc, LedgerHandle lh, Object ctx) {
                            final int cbRc;
                            if (BKException.Code.OK == rc) {
                                totalBytes.addAndGet(lh.getLength());
                                totalEntries.addAndGet(lh.getLastAddConfirmed() + 1);
                                cbRc = rc;
                            } else {
                                cbRc = BKException.Code.ZKException;
                            }
                            executorService.submit(new Runnable() {

                                @Override
                                public void run() {
                                    cb.processResult(cbRc, null, null);
                                }
                            });
                        }
                    }, null);
                }
            });
        }
    };
    AsyncCallback.VoidCallback finalCb = new AsyncCallback.VoidCallback() {

        @Override
        public void processResult(int rc, String path, Object ctx) {
            if (BKException.Code.OK == rc) {
                doneFuture.set(null);
            } else {
                doneFuture.setException(BKException.create(rc));
            }
        }
    };
    lm.asyncProcessLedgers(collector, finalCb, null, BKException.Code.OK, BKException.Code.ZKException);
    try {
        doneFuture.get();
        logger.info("calculated {} ledgers\n\ttotal bytes = {}\n\ttotal entries = {}", new Object[] { numLedgers.get(), totalBytes.get(), totalEntries.get() });
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new DLInterruptedException("Interrupted on calculating ledger space : ", e);
    } catch (ExecutionException e) {
        if (e.getCause() instanceof IOException) {
            throw (IOException) (e.getCause());
        } else {
            throw new IOException("Failed to calculate ledger space : ", e.getCause());
        }
    }
    return totalBytes.get();
}

Example 68 with BookKeeper

use of org.apache.bookkeeper.client.BookKeeper in project incubator-pulsar by apache.

the class BookKeeperClientFactoryImpl method create.

@Override
public BookKeeper create(ServiceConfiguration conf, ZooKeeper zkClient) throws IOException {
    ClientConfiguration bkConf = new ClientConfiguration();
    if (conf.getBookkeeperClientAuthenticationPlugin() != null && conf.getBookkeeperClientAuthenticationPlugin().trim().length() > 0) {
        bkConf.setClientAuthProviderFactoryClass(conf.getBookkeeperClientAuthenticationPlugin());
        bkConf.setProperty(conf.getBookkeeperClientAuthenticationParametersName(), conf.getBookkeeperClientAuthenticationParameters());
    }
    bkConf.setThrottleValue(0);
    bkConf.setAddEntryTimeout((int) conf.getBookkeeperClientTimeoutInSeconds());
    bkConf.setReadEntryTimeout((int) conf.getBookkeeperClientTimeoutInSeconds());
    bkConf.setSpeculativeReadTimeout(conf.getBookkeeperClientSpeculativeReadTimeoutInMillis());
    bkConf.setNumChannelsPerBookie(16);
    bkConf.setUseV2WireProtocol(true);
    bkConf.setEnableDigestTypeAutodetection(true);
    bkConf.setLedgerManagerFactoryClassName(HierarchicalLedgerManagerFactory.class.getName());
    if (conf.isBookkeeperClientHealthCheckEnabled()) {
        bkConf.enableBookieHealthCheck();
        bkConf.setBookieHealthCheckInterval(conf.getBookkeeperHealthCheckIntervalSec(), TimeUnit.SECONDS);
        bkConf.setBookieErrorThresholdPerInterval(conf.getBookkeeperClientHealthCheckErrorThresholdPerInterval());
        bkConf.setBookieQuarantineTime((int) conf.getBookkeeperClientHealthCheckQuarantineTimeInSeconds(), TimeUnit.SECONDS);
    }
    if (conf.isBookkeeperClientRackawarePolicyEnabled()) {
        bkConf.setEnsemblePlacementPolicy(RackawareEnsemblePlacementPolicy.class);
        bkConf.setProperty(RackawareEnsemblePlacementPolicy.REPP_DNS_RESOLVER_CLASS, ZkBookieRackAffinityMapping.class.getName());
        this.rackawarePolicyZkCache = new ZooKeeperCache(zkClient) {
        };
        bkConf.setProperty(ZooKeeperCache.ZK_CACHE_INSTANCE, this.rackawarePolicyZkCache);
    }
    if (conf.getBookkeeperClientIsolationGroups() != null && !conf.getBookkeeperClientIsolationGroups().isEmpty()) {
        bkConf.setEnsemblePlacementPolicy(ZkIsolatedBookieEnsemblePlacementPolicy.class);
        bkConf.setProperty(ZkIsolatedBookieEnsemblePlacementPolicy.ISOLATION_BOOKIE_GROUPS, conf.getBookkeeperClientIsolationGroups());
        if (bkConf.getProperty(ZooKeeperCache.ZK_CACHE_INSTANCE) == null) {
            this.clientIsolationZkCache = new ZooKeeperCache(zkClient) {
            };
            bkConf.setProperty(ZooKeeperCache.ZK_CACHE_INSTANCE, this.clientIsolationZkCache);
        }
    }
    try {
        return new BookKeeper(bkConf, zkClient);
    } catch (InterruptedException | BKException e) {
        throw new IOException(e);
    }
}

Example 69 with BookKeeper

use of org.apache.bookkeeper.client.BookKeeper in project incubator-pulsar by apache.

the class ManagedLedgerFactoryImpl method asyncOpen.

@Override
public void asyncOpen(final String name, final ManagedLedgerConfig config, final OpenLedgerCallback callback, final Object ctx) {
    // If the ledger state is bad, remove it from the map.
    CompletableFuture<ManagedLedgerImpl> existingFuture = ledgers.get(name);
    if (existingFuture != null && existingFuture.isDone()) {
        try {
            ManagedLedgerImpl l = existingFuture.get();
            if (l.getState().equals(State.Fenced.toString()) || l.getState().equals(State.Closed.toString())) {
                // Managed ledger is in unusable state. Recreate it.
                log.warn("[{}] Attempted to open ledger in {} state. Removing from the map to recreate it", name, l.getState());
                ledgers.remove(name, existingFuture);
            }
        } catch (Exception e) {
            // Unable to get the future
            log.warn("[{}] Got exception while trying to retrieve ledger", name, e);
        }
    }
    // Ensure only one managed ledger is created and initialized
    ledgers.computeIfAbsent(name, (mlName) -> {
        // Create the managed ledger
        CompletableFuture<ManagedLedgerImpl> future = new CompletableFuture<>();
        final ManagedLedgerImpl newledger = new ManagedLedgerImpl(this, bookKeeper, store, config, executor, orderedExecutor, name);
        newledger.initialize(new ManagedLedgerInitializeLedgerCallback() {

            @Override
            public void initializeComplete() {
                future.complete(newledger);
            }

            @Override
            public void initializeFailed(ManagedLedgerException e) {
                // Clean the map if initialization fails
                ledgers.remove(name, future);
                future.completeExceptionally(e);
            }
        }, null);
        return future;
    }).thenAccept(ml -> {
        callback.openLedgerComplete(ml, ctx);
    }).exceptionally(exception -> {
        callback.openLedgerFailed((ManagedLedgerException) exception.getCause(), ctx);
        return null;
    });
}

Example 70 with BookKeeper

use of org.apache.bookkeeper.client.BookKeeper in project incubator-pulsar by apache.

the class ManagedLedgerOfflineBacklog method calculateCursorBacklogs.

private void calculateCursorBacklogs(final ManagedLedgerFactoryImpl factory, final TopicName topicName, final NavigableMap<Long, MLDataFormats.ManagedLedgerInfo.LedgerInfo> ledgers, final PersistentOfflineTopicStats offlineTopicStats) throws Exception {
    if (ledgers.size() == 0) {
        return;
    }
    String managedLedgerName = topicName.getPersistenceNamingEncoding();
    MetaStore store = factory.getMetaStore();
    BookKeeper bk = factory.getBookKeeper();
    final CountDownLatch allCursorsCounter = new CountDownLatch(1);
    final long errorInReadingCursor = (long) -1;
    ConcurrentOpenHashMap<String, Long> ledgerRetryMap = new ConcurrentOpenHashMap<>();
    final MLDataFormats.ManagedLedgerInfo.LedgerInfo ledgerInfo = ledgers.lastEntry().getValue();
    final PositionImpl lastLedgerPosition = new PositionImpl(ledgerInfo.getLedgerId(), ledgerInfo.getEntries() - 1);
    if (log.isDebugEnabled()) {
        log.debug("[{}] Last ledger position {}", managedLedgerName, lastLedgerPosition);
    }
    store.getCursors(managedLedgerName, new MetaStore.MetaStoreCallback<List<String>>() {

        @Override
        public void operationComplete(List<String> cursors, MetaStore.Stat v) {
            // Load existing cursors
            if (log.isDebugEnabled()) {
                log.debug("[{}] Found {} cursors", managedLedgerName, cursors.size());
            }
            if (cursors.isEmpty()) {
                allCursorsCounter.countDown();
                return;
            }
            final CountDownLatch cursorCounter = new CountDownLatch(cursors.size());
            for (final String cursorName : cursors) {
                // determine subscription position from cursor ledger
                if (log.isDebugEnabled()) {
                    log.debug("[{}] Loading cursor {}", managedLedgerName, cursorName);
                }
                AsyncCallback.OpenCallback cursorLedgerOpenCb = (rc, lh, ctx1) -> {
                    long ledgerId = lh.getId();
                    if (log.isDebugEnabled()) {
                        log.debug("[{}] Opened cursor ledger {} for cursor {}. rc={}", managedLedgerName, ledgerId, cursorName, rc);
                    }
                    if (rc != BKException.Code.OK) {
                        log.warn("[{}] Error opening metadata ledger {} for cursor {}: {}", managedLedgerName, ledgerId, cursorName, BKException.getMessage(rc));
                        cursorCounter.countDown();
                        return;
                    }
                    long lac = lh.getLastAddConfirmed();
                    if (log.isDebugEnabled()) {
                        log.debug("[{}] Cursor {} LAC {} read from ledger {}", managedLedgerName, cursorName, lac, ledgerId);
                    }
                    if (lac == LedgerHandle.INVALID_ENTRY_ID) {
                        // save the ledger id and cursor to retry outside of this call back
                        // since we are trying to read the same cursor ledger, we will block until
                        // this current callback completes, since an attempt to read the entry
                        // will block behind this current operation to complete
                        ledgerRetryMap.put(cursorName, ledgerId);
                        log.info("[{}] Cursor {} LAC {} read from ledger {}", managedLedgerName, cursorName, lac, ledgerId);
                        cursorCounter.countDown();
                        return;
                    }
                    final long entryId = lac;
                    // read last acked message position for subscription
                    lh.asyncReadEntries(entryId, entryId, new AsyncCallback.ReadCallback() {

                        @Override
                        public void readComplete(int rc, LedgerHandle lh, Enumeration<LedgerEntry> seq, Object ctx) {
                            try {
                                if (log.isDebugEnabled()) {
                                    log.debug("readComplete rc={} entryId={}", rc, entryId);
                                }
                                if (rc != BKException.Code.OK) {
                                    log.warn("[{}] Error reading from metadata ledger {} for cursor {}: {}", managedLedgerName, ledgerId, cursorName, BKException.getMessage(rc));
                                    // indicate that this cursor should be excluded
                                    offlineTopicStats.addCursorDetails(cursorName, errorInReadingCursor, lh.getId());
                                } else {
                                    LedgerEntry entry = seq.nextElement();
                                    MLDataFormats.PositionInfo positionInfo;
                                    try {
                                        positionInfo = MLDataFormats.PositionInfo.parseFrom(entry.getEntry());
                                    } catch (InvalidProtocolBufferException e) {
                                        log.warn("[{}] Error reading position from metadata ledger {} for cursor {}: {}", managedLedgerName, ledgerId, cursorName, e);
                                        offlineTopicStats.addCursorDetails(cursorName, errorInReadingCursor, lh.getId());
                                        return;
                                    }
                                    final PositionImpl lastAckedMessagePosition = new PositionImpl(positionInfo);
                                    if (log.isDebugEnabled()) {
                                        log.debug("[{}] Cursor {} MD {} read last ledger position {}", managedLedgerName, cursorName, lastAckedMessagePosition, lastLedgerPosition);
                                    }
                                    // calculate cursor backlog
                                    Range<PositionImpl> range = Range.openClosed(lastAckedMessagePosition, lastLedgerPosition);
                                    if (log.isDebugEnabled()) {
                                        log.debug("[{}] Calculating backlog for cursor {} using range {}", managedLedgerName, cursorName, range);
                                    }
                                    long cursorBacklog = getNumberOfEntries(range, ledgers);
                                    offlineTopicStats.messageBacklog += cursorBacklog;
                                    offlineTopicStats.addCursorDetails(cursorName, cursorBacklog, lh.getId());
                                }
                            } finally {
                                cursorCounter.countDown();
                            }
                        }
                    }, null);
                };
                // end of cursor meta read callback
                store.asyncGetCursorInfo(managedLedgerName, cursorName, new MetaStore.MetaStoreCallback<MLDataFormats.ManagedCursorInfo>() {

                    @Override
                    public void operationComplete(MLDataFormats.ManagedCursorInfo info, MetaStore.Stat version) {
                        long cursorLedgerId = info.getCursorsLedgerId();
                        if (log.isDebugEnabled()) {
                            log.debug("[{}] Cursor {} meta-data read ledger id {}", managedLedgerName, cursorName, cursorLedgerId);
                        }
                        if (cursorLedgerId != -1) {
                            bk.asyncOpenLedgerNoRecovery(cursorLedgerId, digestType, password, cursorLedgerOpenCb, null);
                        } else {
                            PositionImpl lastAckedMessagePosition = new PositionImpl(info.getMarkDeleteLedgerId(), info.getMarkDeleteEntryId());
                            Range<PositionImpl> range = Range.openClosed(lastAckedMessagePosition, lastLedgerPosition);
                            if (log.isDebugEnabled()) {
                                log.debug("[{}] Calculating backlog for cursor {} using range {}", managedLedgerName, cursorName, range);
                            }
                            long cursorBacklog = getNumberOfEntries(range, ledgers);
                            offlineTopicStats.messageBacklog += cursorBacklog;
                            offlineTopicStats.addCursorDetails(cursorName, cursorBacklog, cursorLedgerId);
                            cursorCounter.countDown();
                        }
                    }

                    @Override
                    public void operationFailed(ManagedLedgerException.MetaStoreException e) {
                        log.warn("[{}] Unable to obtain cursor ledger for cursor {}: {}", managedLedgerName, cursorName, e);
                        cursorCounter.countDown();
                    }
                });
            }
            // for every cursor find backlog
            try {
                if (accurate) {
                    cursorCounter.await();
                } else {
                    cursorCounter.await(META_READ_TIMEOUT_SECONDS, TimeUnit.SECONDS);
                }
            } catch (Exception e) {
                log.warn("[{}] Error reading subscription positions{}", managedLedgerName, e);
            } finally {
                allCursorsCounter.countDown();
            }
        }

        @Override
        public void operationFailed(ManagedLedgerException.MetaStoreException e) {
            log.warn("[{}] Failed to get the cursors list", managedLedgerName, e);
            allCursorsCounter.countDown();
        }
    });
    if (accurate) {
        allCursorsCounter.await();
    } else {
        allCursorsCounter.await(META_READ_TIMEOUT_SECONDS, TimeUnit.SECONDS);
    }
    // go through ledgers where LAC was -1
    if (accurate && ledgerRetryMap.size() > 0) {
        ledgerRetryMap.forEach((cursorName, ledgerId) -> {
            if (log.isDebugEnabled()) {
                log.debug("Cursor {} Ledger {} Trying to obtain MD from BkAdmin", cursorName, ledgerId);
            }
            PositionImpl lastAckedMessagePosition = tryGetMDPosition(bk, ledgerId, cursorName);
            if (lastAckedMessagePosition == null) {
                log.warn("[{}] Cursor {} read from ledger {}. Unable to determine cursor position", managedLedgerName, cursorName, ledgerId);
            } else {
                if (log.isDebugEnabled()) {
                    log.debug("[{}] Cursor {} read from ledger using bk admin {}. position {}", managedLedgerName, cursorName, ledgerId, lastAckedMessagePosition);
                }
                // calculate cursor backlog
                Range<PositionImpl> range = Range.openClosed(lastAckedMessagePosition, lastLedgerPosition);
                if (log.isDebugEnabled()) {
                    log.debug("[{}] Calculating backlog for cursor {} using range {}", managedLedgerName, cursorName, range);
                }
                long cursorBacklog = getNumberOfEntries(range, ledgers);
                offlineTopicStats.messageBacklog += cursorBacklog;
                offlineTopicStats.addCursorDetails(cursorName, cursorBacklog, ledgerId);
            }
        });
    }
}