Examples with TezClient org.apache.tez.client.TezClient used on opensource projects

Example 56 with TezClient

use of org.apache.tez.client.TezClient in project hive by apache.

the class TezSessionState method openInternal.

protected void openInternal(String[] additionalFilesNotFromConf, boolean isAsync, LogHelper console, HiveResources resources) throws IOException, LoginException, URISyntaxException, TezException {
    // TODO Why is the queue name set again. It has already been setup via setQueueName. Do only one of the two.
    String confQueueName = conf.get(TezConfiguration.TEZ_QUEUE_NAME);
    if (queueName != null && !queueName.equals(confQueueName)) {
        LOG.warn("Resetting a queue name that was already set: was " + queueName + ", now " + confQueueName);
    }
    this.queueName = confQueueName;
    this.doAsEnabled = conf.getBoolVar(HiveConf.ConfVars.HIVE_SERVER2_ENABLE_DOAS);
    final boolean llapMode = "llap".equalsIgnoreCase(HiveConf.getVar(conf, HiveConf.ConfVars.HIVE_EXECUTION_MODE));
    // TODO This - at least for the session pool - will always be the hive user. How does doAs above this affect things ?
    UserGroupInformation ugi = Utils.getUGI();
    user = ugi.getShortUserName();
    LOG.info("User of session id " + sessionId + " is " + user);
    // Create the tez tmp dir and a directory for Hive resources.
    tezScratchDir = createTezDir(sessionId, null);
    if (resources != null) {
        // If we are getting the resources externally, don't relocalize anything.
        this.resources = resources;
        LOG.info("Setting resources to " + resources);
    } else {
        this.resources = new HiveResources(createTezDir(sessionId, "resources"));
        ensureLocalResources(conf, additionalFilesNotFromConf);
        LOG.info("Created new resources: " + resources);
    }
    // unless already installed on all the cluster nodes, we'll have to
    // localize hive-exec.jar as well.
    appJarLr = createJarLocalResource(utils.getExecJarPathLocal(conf));
    // configuration for the application master
    final Map<String, LocalResource> commonLocalResources = new HashMap<String, LocalResource>();
    commonLocalResources.put(DagUtils.getBaseName(appJarLr), appJarLr);
    for (LocalResource lr : this.resources.localizedResources) {
        commonLocalResources.put(DagUtils.getBaseName(lr), lr);
    }
    if (llapMode) {
        // localize llap client jars
        addJarLRByClass(LlapTaskSchedulerService.class, commonLocalResources);
        addJarLRByClass(LlapProtocolClientImpl.class, commonLocalResources);
        addJarLRByClass(LlapProtocolClientProxy.class, commonLocalResources);
        addJarLRByClass(RegistryOperations.class, commonLocalResources);
    }
    // Create environment for AM.
    Map<String, String> amEnv = new HashMap<String, String>();
    MRHelpers.updateEnvBasedOnMRAMEnv(conf, amEnv);
    // and finally we're ready to create and start the session
    // generate basic tez config
    final TezConfiguration tezConfig = new TezConfiguration(true);
    tezConfig.addResource(conf);
    setupTezParamsBasedOnMR(tezConfig);
    // set up the staging directory to use
    tezConfig.set(TezConfiguration.TEZ_AM_STAGING_DIR, tezScratchDir.toUri().toString());
    conf.stripHiddenConfigurations(tezConfig);
    ServicePluginsDescriptor servicePluginsDescriptor;
    Credentials llapCredentials = null;
    if (llapMode) {
        if (isKerberosEnabled(tezConfig)) {
            llapCredentials = new Credentials();
            llapCredentials.addToken(LlapTokenIdentifier.KIND_NAME, getLlapToken(user, tezConfig));
        }
        // TODO Change this to not serialize the entire Configuration - minor.
        UserPayload servicePluginPayload = TezUtils.createUserPayloadFromConf(tezConfig);
        // we need plugins to handle llap and uber mode
        servicePluginsDescriptor = ServicePluginsDescriptor.create(true, new TaskSchedulerDescriptor[] { TaskSchedulerDescriptor.create(LLAP_SERVICE, LLAP_SCHEDULER).setUserPayload(servicePluginPayload) }, new ContainerLauncherDescriptor[] { ContainerLauncherDescriptor.create(LLAP_SERVICE, LLAP_LAUNCHER) }, new TaskCommunicatorDescriptor[] { TaskCommunicatorDescriptor.create(LLAP_SERVICE, LLAP_TASK_COMMUNICATOR).setUserPayload(servicePluginPayload) });
    } else {
        servicePluginsDescriptor = ServicePluginsDescriptor.create(true);
    }
    // container prewarming. tell the am how many containers we need
    if (HiveConf.getBoolVar(conf, ConfVars.HIVE_PREWARM_ENABLED)) {
        int n = HiveConf.getIntVar(conf, ConfVars.HIVE_PREWARM_NUM_CONTAINERS);
        n = Math.max(tezConfig.getInt(TezConfiguration.TEZ_AM_SESSION_MIN_HELD_CONTAINERS, TezConfiguration.TEZ_AM_SESSION_MIN_HELD_CONTAINERS_DEFAULT), n);
        tezConfig.setInt(TezConfiguration.TEZ_AM_SESSION_MIN_HELD_CONTAINERS, n);
    }
    setupSessionAcls(tezConfig, conf);
    /*
     * Update HADOOP_CREDSTORE_PASSWORD for the TezAM.
     * If there is a job specific credential store, it will be set.
     * HiveConfUtil.updateJobCredentialProviders should not be used here,
     * as it changes the credential store path too, which causes the dag submission fail,
     * as this config has an effect in HS2 (on TezClient codepath), and the original hadoop
     * credential store should be used.
     */
    HiveConfUtil.updateCredentialProviderPasswordForJobs(tezConfig);
    String tezJobNameFormat = HiveConf.getVar(conf, ConfVars.HIVETEZJOBNAME);
    final TezClient session = TezClient.newBuilder(String.format(tezJobNameFormat, sessionId), tezConfig).setIsSession(true).setLocalResources(commonLocalResources).setCredentials(llapCredentials).setServicePluginDescriptor(servicePluginsDescriptor).build();
    LOG.info("Opening new Tez Session (id: " + sessionId + ", scratch dir: " + tezScratchDir + ")");
    TezJobMonitor.initShutdownHook();
    if (!isAsync) {
        startSessionAndContainers(session, conf, commonLocalResources, tezConfig, false);
        this.session = session;
    } else {
        FutureTask<TezClient> sessionFuture = new FutureTask<>(new Callable<TezClient>() {

            @Override
            public TezClient call() throws Exception {
                TezClient result = null;
                try {
                    result = startSessionAndContainers(session, conf, commonLocalResources, tezConfig, true);
                } catch (Throwable t) {
                    // The caller has already stopped the session.
                    LOG.error("Failed to start Tez session", t);
                    throw (t instanceof Exception) ? (Exception) t : new Exception(t);
                }
                // This is not bulletproof but should allow us to close session in most cases.
                if (Thread.interrupted()) {
                    LOG.info("Interrupted while starting Tez session");
                    closeAndIgnoreExceptions(result);
                    return null;
                }
                return result;
            }
        });
        new Thread(sessionFuture, "Tez session start thread").start();
        // We assume here nobody will try to get session before open() returns.
        this.console = console;
        this.sessionFuture = sessionFuture;
    }
}

Example 57 with TezClient

use of org.apache.tez.client.TezClient in project hive by apache.

the class TezSessionState method isOpen.

public boolean isOpen() {
    if (session != null) {
        return true;
    }
    if (sessionFuture == null) {
        return false;
    }
    try {
        TezClient session = sessionFuture.get(0, TimeUnit.NANOSECONDS);
        if (session == null) {
            return false;
        }
        this.session = session;
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        return false;
    } catch (ExecutionException e) {
        throw new RuntimeException(e);
    } catch (TimeoutException | CancellationException e) {
        return false;
    }
    return true;
}

Example 58 with TezClient

use of org.apache.tez.client.TezClient in project hive by apache.

the class TezSessionState method endOpen.

public void endOpen() throws InterruptedException, CancellationException {
    if (this.session != null || this.sessionFuture == null) {
        return;
    }
    try {
        TezClient session = this.sessionFuture.get();
        if (session == null) {
            throw new RuntimeException("Initialization was interrupted");
        }
        this.session = session;
    } catch (ExecutionException e) {
        throw new RuntimeException(e);
    }
}