Examples of OrderedSafeExecutor

org.apache.bookkeeper.util.OrderedSafeExecutor
This class provides 2 things over the java {@link ScheduledExecutorService}. 1. It takes {@link SafeRunnable objects} instead of plain Runnable objects.This means that exceptions in scheduled tasks wont go unnoticed and will be logged. 2. It supports submitting tasks with an ordering key, so that tasks submitted with the same key will always be executed in order, but tasks across different keys can be unordered. This retains parallelism while retaining the basic amount of ordering we want (e.g. , per ledger handle). Ordering is achieved by hashing the key objects to threads by their {@link #hashCode()}method.

Examples of org.apache.bookkeeper.util.OrderedSafeExecutor

            .setLedgerDirNames(new String[] { tmpDir.getPath() });
        bs = new BookieServer(conf);
        bs.start();
        channelFactory = new NioClientSocketChannelFactory(Executors.newCachedThreadPool(), Executors
                .newCachedThreadPool());
        executor = new OrderedSafeExecutor(2);
    }

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Examples of org.apache.bookkeeper.util.OrderedSafeExecutor

        long begin = System.currentTimeMillis();


        LoopbackClient lb;
        ClientSocketChannelFactory channelFactory = new NioClientSocketChannelFactory(Executors.newCachedThreadPool(), Executors
                .newCachedThreadPool());
        OrderedSafeExecutor executor = new OrderedSafeExecutor(2);
        try {
            InetSocketAddress addr = new InetSocketAddress("127.0.0.1", Integer.valueOf(args[2]).intValue());
            lb = new LoopbackClient(channelFactory, executor, begin, limit.intValue());


            for (int i = 0; i < limit; i++) {

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Examples of org.apache.bookkeeper.util.OrderedSafeExecutor

    @Test(timeout=60000)
    public void testConnectCloseRace() {
        ClientSocketChannelFactory channelFactory
            = new NioClientSocketChannelFactory(Executors.newCachedThreadPool(),
                                                Executors.newCachedThreadPool());
        OrderedSafeExecutor executor = new OrderedSafeExecutor(1);


        InetSocketAddress addr = getBookie(0);
        AtomicLong bytesOutstanding = new AtomicLong(0);
        for (int i = 0; i < 1000; i++) {
            PerChannelBookieClient client = new PerChannelBookieClient(executor, channelFactory,
                                                                       addr, bytesOutstanding);
            client.connectIfNeededAndDoOp(new GenericCallback<Void>() {
                    @Override
                    public void operationComplete(int rc, Void result) {
                        // do nothing, we don't care about doing anything with the connection,
                        // we just want to trigger it connecting.
                    }
                });
            client.close();
        }
        channelFactory.releaseExternalResources();
        executor.shutdown();
    }

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Examples of org.apache.bookkeeper.util.OrderedSafeExecutor

            }
        };
        ClientSocketChannelFactory channelFactory
            = new NioClientSocketChannelFactory(Executors.newCachedThreadPool(),
                                                Executors.newCachedThreadPool());
        OrderedSafeExecutor executor = new OrderedSafeExecutor(1);


        InetSocketAddress addr = getBookie(0);
        AtomicLong bytesOutstanding = new AtomicLong(0);
        for (int i = 0; i < 100; i++) {
            PerChannelBookieClient client = new PerChannelBookieClient(executor, channelFactory,
                                                                       addr, bytesOutstanding);
            for (int j = i; j < 10; j++) {
                client.connectIfNeededAndDoOp(nullop);
            }
            client.close();
        }
        channelFactory.releaseExternalResources();
        executor.shutdown();
    }

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Examples of org.apache.bookkeeper.util.OrderedSafeExecutor

     */
    public ReadAheadCache(PersistenceManagerWithRangeScan realPersistenceManager, ServerConfiguration cfg) {
        this.realPersistenceManager = realPersistenceManager;
        this.cfg = cfg;
        numCacheWorkers = cfg.getNumReadAheadCacheThreads();
        cacheWorkers = new OrderedSafeExecutor(numCacheWorkers);
        reloadConf(cfg);
    }

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Examples of org.apache.bookkeeper.util.OrderedSafeExecutor




        ClientSocketChannelFactory channelFactory
            = new NioClientSocketChannelFactory(Executors.newCachedThreadPool(), Executors
                                                .newCachedThreadPool());
        OrderedSafeExecutor executor = new OrderedSafeExecutor(1);


        ClientConfiguration conf = new ClientConfiguration();
        BookieClient bc = new BookieClient(conf, channelFactory, executor);
        LatencyCallback lc = new LatencyCallback();


        ThroughputCallback tc = new ThroughputCallback();
        int warmUpCount = 999;


        long ledger = getValidLedgerId(servers);
        for(long entry = 0; entry < warmUpCount; entry++) {
            ChannelBuffer toSend = ChannelBuffers.buffer(size);
            toSend.resetReaderIndex();
            toSend.resetWriterIndex();
            toSend.writeLong(ledger);
            toSend.writeLong(entry);
            toSend.writerIndex(toSend.capacity());
            bc.addEntry(new InetSocketAddress(addr, port), ledger, new byte[20],
                        entry, toSend, tc, null, BookieProtocol.FLAG_NONE);
        }
        LOG.info("Waiting for warmup");
        tc.waitFor(warmUpCount);


        ledger = getValidLedgerId(servers);
        LOG.info("Benchmarking latency");
        int entryCount = 5000;
        long startTime = System.nanoTime();
        for(long entry = 0; entry < entryCount; entry++) {
            ChannelBuffer toSend = ChannelBuffers.buffer(size);
            toSend.resetReaderIndex();
            toSend.resetWriterIndex();
            toSend.writeLong(ledger);
            toSend.writeLong(entry);
            toSend.writerIndex(toSend.capacity());
            lc.resetComplete();
            bc.addEntry(new InetSocketAddress(addr, port), ledger, new byte[20],
                        entry, toSend, lc, null, BookieProtocol.FLAG_NONE);
            lc.waitForComplete();
        }
        long endTime = System.nanoTime();
        LOG.info("Latency: " + (((double)(endTime-startTime))/((double)entryCount))/1000000.0);


        entryCount = 50000;


        ledger = getValidLedgerId(servers);
        LOG.info("Benchmarking throughput");
        startTime = System.currentTimeMillis();
        tc = new ThroughputCallback();
        for(long entry = 0; entry < entryCount; entry++) {
            ChannelBuffer toSend = ChannelBuffers.buffer(size);
            toSend.resetReaderIndex();
            toSend.resetWriterIndex();
            toSend.writeLong(ledger);
            toSend.writeLong(entry);
            toSend.writerIndex(toSend.capacity());
            bc.addEntry(new InetSocketAddress(addr, port), ledger, new byte[20],
                        entry, toSend, tc, null, BookieProtocol.FLAG_NONE);
        }
        tc.waitFor(entryCount);
        endTime = System.currentTimeMillis();
        LOG.info("Throughput: " + ((long)entryCount)*1000/(endTime-startTime));


        bc.close();
        channelFactory.releaseExternalResources();
        executor.shutdown();
    }

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Examples of org.apache.bookkeeper.util.OrderedSafeExecutor

        Counter counter = new Counter();
        byte hello[] = "hello".getBytes();
        long ledger = Long.parseLong(args[2]);
        ClientSocketChannelFactory channelFactory = new NioClientSocketChannelFactory(Executors.newCachedThreadPool(), Executors
                .newCachedThreadPool());
        OrderedSafeExecutor executor = new OrderedSafeExecutor(1);
        BookieClient bc = new BookieClient(new ClientConfiguration(), channelFactory, executor);
        InetSocketAddress addr = new InetSocketAddress(args[0], Integer.parseInt(args[1]));


        for (int i = 0; i < 100000; i++) {
            counter.inc();
            bc.addEntry(addr, ledger, new byte[0], i, ChannelBuffers.wrappedBuffer(hello), cb, counter, 0);
        }
        counter.wait(0);
        System.out.println("Total = " + counter.total());
        channelFactory.releaseExternalResources();
        executor.shutdown();
    }

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Examples of org.apache.bookkeeper.util.OrderedSafeExecutor

        Counter counter = new Counter();
        byte hello[] = "hello".getBytes();
        long ledger = Long.parseLong(args[2]);
        ClientSocketChannelFactory channelFactory = new NioClientSocketChannelFactory(Executors.newCachedThreadPool(), Executors
                .newCachedThreadPool());
        OrderedSafeExecutor executor = new OrderedSafeExecutor(1);
        BookieClient bc = new BookieClient(new ClientConfiguration(), channelFactory, executor);
        InetSocketAddress addr = new InetSocketAddress(args[0], Integer.parseInt(args[1]));


        for (int i = 0; i < 100000; i++) {
            counter.inc();
            bc.addEntry(addr, ledger, new byte[0], i, ChannelBuffers.wrappedBuffer(hello), cb, counter, 0);
        }
        counter.wait(0);
        System.out.println("Total = " + counter.total());
        channelFactory.releaseExternalResources();
        executor.shutdown();
    }

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