Examples with TraceScope org.apache.htrace.TraceScope used on opensource projects

Example 31 with TraceScope

use of org.apache.htrace.TraceScope in project hbase by apache.

the class WALPerformanceEvaluation method run.

@Override
public int run(String[] args) throws Exception {
    Path rootRegionDir = null;
    int numThreads = 1;
    long numIterations = 1000000;
    int numFamilies = 1;
    int syncInterval = 0;
    boolean noSync = false;
    boolean verify = false;
    boolean verbose = false;
    boolean cleanup = true;
    boolean noclosefs = false;
    long roll = Long.MAX_VALUE;
    boolean compress = false;
    String cipher = null;
    int numRegions = 1;
    String spanReceivers = getConf().get("hbase.trace.spanreceiver.classes");
    boolean trace = spanReceivers != null && !spanReceivers.isEmpty();
    double traceFreq = 1.0;
    // Process command line args
    for (int i = 0; i < args.length; i++) {
        String cmd = args[i];
        try {
            if (cmd.equals("-threads")) {
                numThreads = Integer.parseInt(args[++i]);
            } else if (cmd.equals("-iterations")) {
                numIterations = Long.parseLong(args[++i]);
            } else if (cmd.equals("-path")) {
                rootRegionDir = new Path(args[++i]);
            } else if (cmd.equals("-families")) {
                numFamilies = Integer.parseInt(args[++i]);
            } else if (cmd.equals("-qualifiers")) {
                numQualifiers = Integer.parseInt(args[++i]);
            } else if (cmd.equals("-keySize")) {
                keySize = Integer.parseInt(args[++i]);
            } else if (cmd.equals("-valueSize")) {
                valueSize = Integer.parseInt(args[++i]);
            } else if (cmd.equals("-syncInterval")) {
                syncInterval = Integer.parseInt(args[++i]);
            } else if (cmd.equals("-nosync")) {
                noSync = true;
            } else if (cmd.equals("-verify")) {
                verify = true;
            } else if (cmd.equals("-verbose")) {
                verbose = true;
            } else if (cmd.equals("-nocleanup")) {
                cleanup = false;
            } else if (cmd.equals("-noclosefs")) {
                noclosefs = true;
            } else if (cmd.equals("-roll")) {
                roll = Long.parseLong(args[++i]);
            } else if (cmd.equals("-compress")) {
                compress = true;
            } else if (cmd.equals("-encryption")) {
                cipher = args[++i];
            } else if (cmd.equals("-regions")) {
                numRegions = Integer.parseInt(args[++i]);
            } else if (cmd.equals("-traceFreq")) {
                traceFreq = Double.parseDouble(args[++i]);
            } else if (cmd.equals("-h")) {
                printUsageAndExit();
            } else if (cmd.equals("--help")) {
                printUsageAndExit();
            } else {
                System.err.println("UNEXPECTED: " + cmd);
                printUsageAndExit();
            }
        } catch (Exception e) {
            printUsageAndExit();
        }
    }
    if (compress) {
        Configuration conf = getConf();
        conf.setBoolean(HConstants.ENABLE_WAL_COMPRESSION, true);
    }
    if (cipher != null) {
        // Set up WAL for encryption
        Configuration conf = getConf();
        conf.set(HConstants.CRYPTO_KEYPROVIDER_CONF_KEY, KeyProviderForTesting.class.getName());
        conf.set(HConstants.CRYPTO_MASTERKEY_NAME_CONF_KEY, "hbase");
        conf.setClass("hbase.regionserver.hlog.reader.impl", SecureProtobufLogReader.class, WAL.Reader.class);
        conf.setClass("hbase.regionserver.hlog.writer.impl", SecureProtobufLogWriter.class, Writer.class);
        conf.setBoolean(HConstants.ENABLE_WAL_ENCRYPTION, true);
        conf.set(HConstants.CRYPTO_WAL_ALGORITHM_CONF_KEY, cipher);
    }
    if (numThreads < numRegions) {
        LOG.warn("Number of threads is less than the number of regions; some regions will sit idle.");
    }
    // Internal config. goes off number of threads; if more threads than handlers, stuff breaks.
    // In regionserver, number of handlers == number of threads.
    getConf().setInt(HConstants.REGION_SERVER_HANDLER_COUNT, numThreads);
    // Run WAL Performance Evaluation
    // First set the fs from configs.  In case we are on hadoop1
    FSUtils.setFsDefault(getConf(), FSUtils.getRootDir(getConf()));
    FileSystem fs = FileSystem.get(getConf());
    LOG.info("FileSystem: " + fs);
    SpanReceiverHost receiverHost = trace ? SpanReceiverHost.getInstance(getConf()) : null;
    final Sampler<?> sampler = trace ? Sampler.ALWAYS : Sampler.NEVER;
    TraceScope scope = Trace.startSpan("WALPerfEval", sampler);
    try {
        if (rootRegionDir == null) {
            rootRegionDir = TEST_UTIL.getDataTestDirOnTestFS("WALPerformanceEvaluation");
        }
        rootRegionDir = rootRegionDir.makeQualified(fs);
        cleanRegionRootDir(fs, rootRegionDir);
        FSUtils.setRootDir(getConf(), rootRegionDir);
        final WALFactory wals = new WALFactory(getConf(), null, "wals");
        final HRegion[] regions = new HRegion[numRegions];
        final Runnable[] benchmarks = new Runnable[numRegions];
        final MockRegionServerServices mockServices = new MockRegionServerServices(getConf());
        final LogRoller roller = new LogRoller(mockServices, mockServices);
        Threads.setDaemonThreadRunning(roller.getThread(), "WALPerfEval.logRoller");
        try {
            for (int i = 0; i < numRegions; i++) {
                // Initialize Table Descriptor
                // a table per desired region means we can avoid carving up the key space
                final HTableDescriptor htd = createHTableDescriptor(i, numFamilies);
                regions[i] = openRegion(fs, rootRegionDir, htd, wals, roll, roller);
                benchmarks[i] = Trace.wrap(new WALPutBenchmark(regions[i], htd, numIterations, noSync, syncInterval, traceFreq));
            }
            ConsoleReporter reporter = ConsoleReporter.forRegistry(metrics).outputTo(System.out).convertRatesTo(TimeUnit.SECONDS).filter(MetricFilter.ALL).build();
            reporter.start(30, TimeUnit.SECONDS);
            long putTime = runBenchmark(benchmarks, numThreads);
            logBenchmarkResult("Summary: threads=" + numThreads + ", iterations=" + numIterations + ", syncInterval=" + syncInterval, numIterations * numThreads, putTime);
            for (int i = 0; i < numRegions; i++) {
                if (regions[i] != null) {
                    closeRegion(regions[i]);
                    regions[i] = null;
                }
            }
            if (verify) {
                LOG.info("verifying written log entries.");
                Path dir = new Path(FSUtils.getRootDir(getConf()), AbstractFSWALProvider.getWALDirectoryName("wals"));
                long editCount = 0;
                FileStatus[] fsss = fs.listStatus(dir);
                if (fsss.length == 0)
                    throw new IllegalStateException("No WAL found");
                for (FileStatus fss : fsss) {
                    Path p = fss.getPath();
                    if (!fs.exists(p))
                        throw new IllegalStateException(p.toString());
                    editCount += verify(wals, p, verbose);
                }
                long expected = numIterations * numThreads;
                if (editCount != expected) {
                    throw new IllegalStateException("Counted=" + editCount + ", expected=" + expected);
                }
            }
        } finally {
            mockServices.stop("test clean up.");
            for (int i = 0; i < numRegions; i++) {
                if (regions[i] != null) {
                    closeRegion(regions[i]);
                }
            }
            if (null != roller) {
                LOG.info("shutting down log roller.");
                roller.close();
            }
            wals.shutdown();
            // Remove the root dir for this test region
            if (cleanup)
                cleanRegionRootDir(fs, rootRegionDir);
        }
    } finally {
        // We may be called inside a test that wants to keep on using the fs.
        if (!noclosefs)
            fs.close();
        scope.close();
        if (receiverHost != null)
            receiverHost.closeReceivers();
    }
    return (0);
}

Example 32 with TraceScope

use of org.apache.htrace.TraceScope in project hbase by apache.

the class RecoverableZooKeeper method getData.

/**
   * getData is an idemnpotent operation. Retry before throwing exception
   * @return Data
   */
public byte[] getData(String path, boolean watch, Stat stat) throws KeeperException, InterruptedException {
    TraceScope traceScope = null;
    try {
        traceScope = Trace.startSpan("RecoverableZookeeper.getData");
        RetryCounter retryCounter = retryCounterFactory.create();
        while (true) {
            try {
                byte[] revData = checkZk().getData(path, watch, stat);
                return removeMetaData(revData);
            } catch (KeeperException e) {
                switch(e.code()) {
                    case CONNECTIONLOSS:
                    case OPERATIONTIMEOUT:
                        retryOrThrow(retryCounter, e, "getData");
                        break;
                    default:
                        throw e;
                }
            }
            retryCounter.sleepUntilNextRetry();
        }
    } finally {
        if (traceScope != null)
            traceScope.close();
    }
}

Example 33 with TraceScope

use of org.apache.htrace.TraceScope in project hbase by apache.

the class RecoverableZooKeeper method delete.

/**
   * delete is an idempotent operation. Retry before throwing exception.
   * This function will not throw NoNodeException if the path does not
   * exist.
   */
public void delete(String path, int version) throws InterruptedException, KeeperException {
    TraceScope traceScope = null;
    try {
        traceScope = Trace.startSpan("RecoverableZookeeper.delete");
        RetryCounter retryCounter = retryCounterFactory.create();
        // False for first attempt, true for all retries.
        boolean isRetry = false;
        while (true) {
            try {
                checkZk().delete(path, version);
                return;
            } catch (KeeperException e) {
                switch(e.code()) {
                    case NONODE:
                        if (isRetry) {
                            LOG.debug("Node " + path + " already deleted. Assuming a " + "previous attempt succeeded.");
                            return;
                        }
                        LOG.debug("Node " + path + " already deleted, retry=" + isRetry);
                        throw e;
                    case CONNECTIONLOSS:
                    case OPERATIONTIMEOUT:
                        retryOrThrow(retryCounter, e, "delete");
                        break;
                    default:
                        throw e;
                }
            }
            retryCounter.sleepUntilNextRetry();
            isRetry = true;
        }
    } finally {
        if (traceScope != null)
            traceScope.close();
    }
}

Example 34 with TraceScope

use of org.apache.htrace.TraceScope in project hbase by apache.

the class RecoverableZooKeeper method setAcl.

/**
   * setAcl is an idempotent operation. Retry before throwing exception
   * @return list of ACLs
   */
public Stat setAcl(String path, List<ACL> acls, int version) throws KeeperException, InterruptedException {
    TraceScope traceScope = null;
    try {
        traceScope = Trace.startSpan("RecoverableZookeeper.setAcl");
        RetryCounter retryCounter = retryCounterFactory.create();
        while (true) {
            try {
                return checkZk().setACL(path, acls, version);
            } catch (KeeperException e) {
                switch(e.code()) {
                    case CONNECTIONLOSS:
                    case OPERATIONTIMEOUT:
                        retryOrThrow(retryCounter, e, "setAcl");
                        break;
                    default:
                        throw e;
                }
            }
            retryCounter.sleepUntilNextRetry();
        }
    } finally {
        if (traceScope != null)
            traceScope.close();
    }
}

Example 35 with TraceScope

use of org.apache.htrace.TraceScope in project hbase by apache.

the class RecoverableZooKeeper method multi.

/**
   * Run multiple operations in a transactional manner. Retry before throwing exception
   */
public List<OpResult> multi(Iterable<Op> ops) throws KeeperException, InterruptedException {
    TraceScope traceScope = null;
    try {
        traceScope = Trace.startSpan("RecoverableZookeeper.multi");
        RetryCounter retryCounter = retryCounterFactory.create();
        Iterable<Op> multiOps = prepareZKMulti(ops);
        while (true) {
            try {
                return checkZk().multi(multiOps);
            } catch (KeeperException e) {
                switch(e.code()) {
                    case CONNECTIONLOSS:
                    case OPERATIONTIMEOUT:
                        retryOrThrow(retryCounter, e, "multi");
                        break;
                    default:
                        throw e;
                }
            }
            retryCounter.sleepUntilNextRetry();
        }
    } finally {
        if (traceScope != null)
            traceScope.close();
    }
}