Examples with JsonTypeSerializer voldemort.serialization.json.JsonTypeSerializer used on opensource projects

Example 1 with JsonTypeSerializer

use of voldemort.serialization.json.JsonTypeSerializer in project voldemort by voldemort.

the class ReadOnlyStorePerformanceTest method main.

public static void main(String[] args) throws FileNotFoundException, IOException {
    OptionParser parser = new OptionParser();
    parser.accepts("help", "print usage information");
    parser.accepts("threads", "number of threads").withRequiredArg().ofType(Integer.class);
    parser.accepts("requests", "[REQUIRED] number of requests").withRequiredArg().ofType(Integer.class);
    parser.accepts("store-dir", "[REQUIRED] store directory").withRequiredArg().describedAs("directory");
    parser.accepts("cluster-xml", "Path to cluster.xml").withRequiredArg().describedAs("path");
    parser.accepts("node-id", "Id of node").withRequiredArg().ofType(Integer.class).describedAs("node-id");
    parser.accepts("search-strategy", "class of the search strategy to use").withRequiredArg().describedAs("class_name");
    parser.accepts("build", "If present, first build the data");
    parser.accepts("num-values", "The number of values in the store").withRequiredArg().describedAs("count").ofType(Integer.class);
    parser.accepts("num-chunks", "The number of chunks per partition").withRequiredArg().describedAs("chunks").ofType(Integer.class);
    parser.accepts("internal-sort-size", "The number of items to sort in memory at a time").withRequiredArg().describedAs("size").ofType(Integer.class);
    parser.accepts("value-size", "The size of the values in the store").withRequiredArg().describedAs("size").ofType(Integer.class);
    parser.accepts("working-dir", "The directory in which to store temporary data").withRequiredArg().describedAs("dir");
    parser.accepts("gzip", "Compress the intermediate temp files used in building the store");
    parser.accepts("request-file", "file get request ids from").withRequiredArg();
    parser.accepts("version", "Version of read-only store [" + ReadOnlyStorageFormat.READONLY_V0 + "," + ReadOnlyStorageFormat.READONLY_V1 + "," + ReadOnlyStorageFormat.READONLY_V2 + " (default)]").withRequiredArg().describedAs("version");
    parser.accepts("test-gz", "Path to gzip containing data. Works with --build only").withRequiredArg().describedAs("path");
    OptionSet options = parser.parse(args);
    if (options.has("help")) {
        parser.printHelpOn(System.out);
        System.exit(0);
    }
    CmdUtils.croakIfMissing(parser, options, "requests", "store-dir");
    final int numThreads = CmdUtils.valueOf(options, "threads", 10);
    final int numRequests = (Integer) options.valueOf("requests");
    final int internalSortSize = CmdUtils.valueOf(options, "internal-sort-size", 500000);
    int numValues = numRequests;
    final String inputFile = (String) options.valueOf("request-file");
    final String searcherClass = CmdUtils.valueOf(options, "search-strategy", BinarySearchStrategy.class.getName()).trim();
    final boolean gzipIntermediate = options.has("gzip");
    final SearchStrategy searcher = (SearchStrategy) ReflectUtils.callConstructor(ReflectUtils.loadClass(searcherClass));
    final File workingDir = new File(CmdUtils.valueOf(options, "working-dir", System.getProperty("java.io.tmpdir")));
    String storeDir = (String) options.valueOf("store-dir");
    ReadOnlyStorageFormat format = ReadOnlyStorageFormat.fromCode(CmdUtils.valueOf(options, "version", ReadOnlyStorageFormat.READONLY_V2.toString()));
    Cluster cluster = null;
    int nodeId = 0;
    SerializerDefinition sdef = new SerializerDefinition("json", "'string'");
    StoreDefinition storeDef = new StoreDefinitionBuilder().setName("test").setKeySerializer(sdef).setValueSerializer(sdef).setRequiredReads(1).setReplicationFactor(1).setRequiredWrites(1).setType("read-only").setRoutingStrategyType(RoutingStrategyType.CONSISTENT_STRATEGY).setRoutingPolicy(RoutingTier.CLIENT).build();
    if (options.has("build")) {
        CmdUtils.croakIfMissing(parser, options, "num-values", "value-size");
        numValues = (Integer) options.valueOf("num-values");
        int numChunks = 1;
        if (options.has("num-chunks"))
            numChunks = (Integer) options.valueOf("num-chunks");
        int valueSize = (Integer) options.valueOf("value-size");
        // generate test data
        File temp = null;
        if (options.has("test-gz")) {
            temp = new File((String) options.valueOf("test-gz"));
        } else {
            temp = File.createTempFile("json-data", ".txt.gz", workingDir);
            temp.deleteOnExit();
            System.out.println("Generating test data in " + temp);
            OutputStream outputStream = new GZIPOutputStream(new FileOutputStream(temp));
            Writer writer = new BufferedWriter(new OutputStreamWriter(outputStream), 10 * 1024 * 1024);
            String value = TestUtils.randomLetters(valueSize);
            for (int i = 0; i < numValues; i++) {
                writer.write("\"");
                writer.write(Integer.toString(i));
                writer.write("\" \"");
                writer.write(value);
                writer.write("\"");
                writer.write("\n");
            }
            writer.close();
            writer = null;
        }
        System.out.println("Building store.");
        InputStream inputStream = new GZIPInputStream(new FileInputStream(temp));
        Reader r = new BufferedReader(new InputStreamReader(inputStream), 1 * 1024 * 1024);
        File output = TestUtils.createTempDir(workingDir);
        File tempDir = TestUtils.createTempDir(workingDir);
        cluster = ServerTestUtils.getLocalCluster(1);
        nodeId = 0;
        JsonStoreBuilder builder = new JsonStoreBuilder(new JsonReader(r), cluster, storeDef, new ConsistentRoutingStrategy(cluster, 1), output, tempDir, internalSortSize, 2, numChunks, 64 * 1024, gzipIntermediate);
        builder.build(format);
        // copy to store dir
        File dir = new File(storeDir);
        Utils.rm(dir);
        dir.mkdirs();
        System.out.println("Moving store data from " + output + " to " + dir);
        boolean copyWorked = new File(output, "node-0").renameTo(new File(dir, "version-0"));
        if (!copyWorked)
            Utils.croak("Copy of data from " + output + " to " + dir + " failed.");
    } else {
        CmdUtils.croakIfMissing(parser, options, "cluster-xml", "node-id");
        String clusterXmlPath = (String) options.valueOf("cluster-xml");
        nodeId = (Integer) options.valueOf("node-id");
        File clusterXml = new File(clusterXmlPath);
        if (!clusterXml.exists()) {
            Utils.croak("Cluster.xml does not exist");
        }
        cluster = new ClusterMapper().readCluster(clusterXml);
    }
    final Store<ByteArray, byte[], byte[]> store = new ReadOnlyStorageEngine("test", searcher, new RoutingStrategyFactory().updateRoutingStrategy(storeDef, cluster), nodeId, new File(storeDir), 0);
    final AtomicInteger obsoletes = new AtomicInteger(0);
    final AtomicInteger nullResults = new AtomicInteger(0);
    final AtomicInteger totalResults = new AtomicInteger(0);
    final BlockingQueue<String> requestIds = new ArrayBlockingQueue<String>(20000);
    final Executor executor = Executors.newFixedThreadPool(1);
    // if they have given us a file make a request generator that reads from
    // it, otherwise just generate random values
    final int numVals = numValues;
    Runnable requestGenerator;
    if (inputFile == null) {
        requestGenerator = new Runnable() {

            public void run() {
                System.out.println("Generating random requests.");
                Random random = new Random();
                try {
                    while (true) requestIds.put(Integer.toString(random.nextInt(numRequests) % numVals));
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        };
    } else {
        requestGenerator = new Runnable() {

            public void run() {
                try {
                    System.out.println("Using request file to generate requests.");
                    BufferedReader reader = new BufferedReader(new FileReader(inputFile), 1000000);
                    while (true) {
                        String line = reader.readLine();
                        if (line == null)
                            return;
                        requestIds.put(line.trim());
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        };
    }
    executor.execute(requestGenerator);
    final Serializer<Object> keySerializer = new JsonTypeSerializer(JsonTypeDefinition.fromJson("'string'"), true);
    final AtomicInteger current = new AtomicInteger();
    final int progressIncrement = numRequests / 5;
    PerformanceTest readWriteTest = new PerformanceTest() {

        @Override
        public void doOperation(int index) throws Exception {
            try {
                totalResults.incrementAndGet();
                int curr = current.getAndIncrement();
                List<Versioned<byte[]>> results = store.get(new ByteArray(keySerializer.toBytes(requestIds.take())), null);
                if (curr % progressIncrement == 0)
                    System.out.println(curr);
                if (results.size() == 0)
                    nullResults.incrementAndGet();
            } catch (ObsoleteVersionException e) {
                obsoletes.incrementAndGet();
            }
        }
    };
    System.out.println("Running test...");
    readWriteTest.run(numRequests, numThreads);
    System.out.println("Random Access Read Only store Results:");
    System.out.println("Null reads ratio:" + (nullResults.doubleValue()) / totalResults.doubleValue());
    readWriteTest.printStats();
    System.exit(0);
}

Example 2 with JsonTypeSerializer

use of voldemort.serialization.json.JsonTypeSerializer in project voldemort by voldemort.

the class CatReadOnlyStore method main.

public static void main(String[] args) throws Exception {
    if (args.length != 1)
        Utils.croak("USAGE: java " + CatReadOnlyStore.class.getName() + " directory");
    File dir = new File(args[0]);
    Serializer<Object> serializer = new JsonTypeSerializer(JsonTypeDefinition.fromJson("'string'"), true);
    for (int chunk = 0; ; chunk++) {
        File indexFile = new File(dir, chunk + ".index");
        File dataFile = new File(dir, chunk + ".data");
        if (!indexFile.exists() || !dataFile.exists())
            break;
        RandomAccessFile index = new RandomAccessFile(indexFile, "r");
        RandomAccessFile data = new RandomAccessFile(dataFile, "r");
        System.out.println("Chunk " + chunk);
        byte[] keyMd5 = new byte[16];
        long position = -1;
        try {
            while (true) {
                index.readFully(keyMd5);
                position = index.readInt();
                data.seek(position);
                int size = data.readInt();
                byte[] value = new byte[size];
                data.readFully(value);
                System.out.println(ByteUtils.toHexString(keyMd5) + "\t=>\t" + serializer.toObject(value).toString());
            }
        } catch (EOFException e) {
        // no biggie
        }
        System.out.println();
    }
}

Example 3 with JsonTypeSerializer

use of voldemort.serialization.json.JsonTypeSerializer in project voldemort by voldemort.

the class TestDistribution method main.

public static void main(String[] args) throws Exception {
    if (args.length < 2)
        Utils.croak("USAGE: java TestDistribution cluster.xml replication_factor max_id");
    long start = System.currentTimeMillis();
    File file = new File(args[0]);
    int repFactor = Integer.parseInt(args[1]);
    int maxVal = Integer.parseInt(args[2]);
    ClusterMapper mapper = new ClusterMapper();
    Cluster cluster = mapper.readCluster(file);
    RoutingStrategy strategy = new ConsistentRoutingStrategy(cluster, repFactor);
    JsonTypeSerializer serializer = new JsonTypeSerializer(JsonTypeDefinition.INT32);
    Map<Integer, Integer> counts = new HashMap<Integer, Integer>();
    for (int i = 0; i < maxVal; i++) {
        for (Node node : strategy.routeRequest(serializer.toBytes(i))) {
            int newCount = 1;
            if (counts.get(node.getId()) != null) {
                newCount = counts.get(node.getId()) + 1;
            }
            counts.put(node.getId(), newCount);
        }
    }
    int sum = 0;
    int totalCounts = 0;
    for (int countVal : counts.values()) {
        sum += countVal;
        totalCounts++;
    }
    int avg = sum / totalCounts;
    NumberFormat percent = NumberFormat.getPercentInstance();
    percent.setMaximumFractionDigits(2);
    System.out.println("Node\tKeys\tPercent\tVariation");
    for (int nodeId : counts.keySet()) {
        System.out.println(nodeId + "\t" + counts.get(nodeId) + "\t" + percent.format(counts.get(nodeId) / (double) sum) + "\t" + percent.format((counts.get(nodeId) - avg) / (double) counts.get(nodeId)));
    }
    double msPerHash = (System.currentTimeMillis() - start) / ((double) repFactor * maxVal);
    NumberFormat nf = NumberFormat.getNumberInstance();
    nf.setMaximumFractionDigits(10);
    System.out.println(nf.format(msPerHash) + " ms per hash");
}

Example 4 with JsonTypeSerializer

use of voldemort.serialization.json.JsonTypeSerializer in project voldemort by voldemort.

the class TestSerialization method main.

public static void main(String[] args) {
    JsonTypeDefinition def = JsonTypeDefinition.fromJson("[\"int32\"]");
    int size = 30000;
    List<Integer> value = new ArrayList<Integer>(size);
    for (int i = 0; i < size; i++) value.add(i);
    JsonTypeSerializer ser = new JsonTypeSerializer(def);
    long start = System.currentTimeMillis();
    int iters = 100;
    List<byte[]> bytes = new ArrayList<byte[]>(iters);
    for (int i = 0; i < iters; i++) bytes.add(ser.toBytes(value));
    long elapsed = System.currentTimeMillis() - start;
    System.out.println("Took " + (elapsed / iters) + " ms");
}