Examples with YarnRuntimeException org.apache.hadoop.yarn.exceptions.YarnRuntimeException used on opensource projects

Example 76 with YarnRuntimeException

use of org.apache.hadoop.yarn.exceptions.YarnRuntimeException in project apex-core by apache.

the class StreamingAppMasterService method execute.

/**
   * Main run function for the application master
   *
   * @throws YarnException
   */
@SuppressWarnings("SleepWhileInLoop")
private void execute() throws YarnException, IOException {
    LOG.info("Starting ApplicationMaster");
    final Credentials credentials = UserGroupInformation.getCurrentUser().getCredentials();
    LOG.info("number of tokens: {}", credentials.getAllTokens().size());
    Iterator<Token<?>> iter = credentials.getAllTokens().iterator();
    while (iter.hasNext()) {
        Token<?> token = iter.next();
        LOG.debug("token: {}", token);
    }
    final Configuration conf = getConfig();
    long tokenLifeTime = (long) (dag.getValue(LogicalPlan.TOKEN_REFRESH_ANTICIPATORY_FACTOR) * Math.min(dag.getValue(LogicalPlan.HDFS_TOKEN_LIFE_TIME), dag.getValue(LogicalPlan.RM_TOKEN_LIFE_TIME)));
    long expiryTime = System.currentTimeMillis() + tokenLifeTime;
    LOG.debug(" expiry token time {}", tokenLifeTime);
    String principal = dag.getValue(LogicalPlan.PRINCIPAL);
    String hdfsKeyTabFile = dag.getValue(LogicalPlan.KEY_TAB_FILE);
    // Register self with ResourceManager
    RegisterApplicationMasterResponse response = amRmClient.registerApplicationMaster(appMasterHostname, 0, appMasterTrackingUrl);
    // Dump out information about cluster capability as seen by the resource manager
    int maxMem = response.getMaximumResourceCapability().getMemory();
    int maxVcores = response.getMaximumResourceCapability().getVirtualCores();
    int minMem = conf.getInt("yarn.scheduler.minimum-allocation-mb", 0);
    int minVcores = conf.getInt("yarn.scheduler.minimum-allocation-vcores", 0);
    LOG.info("Max mem {}m, Min mem {}m, Max vcores {} and Min vcores {} capabililty of resources in this cluster ", maxMem, minMem, maxVcores, minVcores);
    long blacklistRemovalTime = dag.getValue(DAGContext.BLACKLISTED_NODE_REMOVAL_TIME_MILLIS);
    int maxConsecutiveContainerFailures = dag.getValue(DAGContext.MAX_CONSECUTIVE_CONTAINER_FAILURES_FOR_BLACKLIST);
    LOG.info("Blacklist removal time in millis = {}, max consecutive node failure count = {}", blacklistRemovalTime, maxConsecutiveContainerFailures);
    // for locality relaxation fall back
    Map<StreamingContainerAgent.ContainerStartRequest, MutablePair<Integer, ContainerRequest>> requestedResources = Maps.newHashMap();
    // Setup heartbeat emitter
    // TODO poll RM every now and then with an empty request to let RM know that we are alive
    // The heartbeat interval after which an AM is timed out by the RM is defined by a config setting:
    // RM_AM_EXPIRY_INTERVAL_MS with default defined by DEFAULT_RM_AM_EXPIRY_INTERVAL_MS
    // The allocate calls to the RM count as heartbeat so, for now, this additional heartbeat emitter
    // is not required.
    int loopCounter = -1;
    long nodeReportUpdateTime = 0;
    // keep track of already requested containers to not request them again while waiting for allocation
    int numRequestedContainers = 0;
    int numReleasedContainers = 0;
    int nextRequestPriority = 0;
    // Use override for resource requestor in case of cloudera distribution, to handle host specific requests
    ResourceRequestHandler resourceRequestor = System.getenv().containsKey("CDH_HADOOP_BIN") ? new BlacklistBasedResourceRequestHandler() : new ResourceRequestHandler();
    List<ContainerStartRequest> pendingContainerStartRequests = new LinkedList<>();
    YarnClient clientRMService = YarnClient.createYarnClient();
    try {
        // YARN-435
        // we need getClusterNodes to populate the initial node list,
        // subsequent updates come through the heartbeat response
        clientRMService.init(conf);
        clientRMService.start();
        ApplicationReport ar = StramClientUtils.getStartedAppInstanceByName(clientRMService, dag.getAttributes().get(DAG.APPLICATION_NAME), UserGroupInformation.getLoginUser().getUserName(), dag.getAttributes().get(DAG.APPLICATION_ID));
        if (ar != null) {
            appDone = true;
            dnmgr.shutdownDiagnosticsMessage = String.format("Application master failed due to application %s with duplicate application name \"%s\" by the same user \"%s\" is already started.", ar.getApplicationId().toString(), ar.getName(), ar.getUser());
            LOG.info("Forced shutdown due to {}", dnmgr.shutdownDiagnosticsMessage);
            finishApplication(FinalApplicationStatus.FAILED);
            return;
        }
        resourceRequestor.updateNodeReports(clientRMService.getNodeReports());
        nodeReportUpdateTime = System.currentTimeMillis() + UPDATE_NODE_REPORTS_INTERVAL;
    } catch (Exception e) {
        throw new RuntimeException("Failed to retrieve cluster nodes report.", e);
    } finally {
        clientRMService.stop();
    }
    List<Container> containers = response.getContainersFromPreviousAttempts();
    // Running containers might take a while to register with the new app master and send the heartbeat signal.
    int waitForRecovery = containers.size() > 0 ? dag.getValue(LogicalPlan.HEARTBEAT_TIMEOUT_MILLIS) / 1000 : 0;
    List<ContainerId> releasedContainers = previouslyAllocatedContainers(containers);
    FinalApplicationStatus finalStatus = FinalApplicationStatus.SUCCEEDED;
    final InetSocketAddress rmAddress = conf.getSocketAddr(YarnConfiguration.RM_ADDRESS, YarnConfiguration.DEFAULT_RM_ADDRESS, YarnConfiguration.DEFAULT_RM_PORT);
    while (!appDone) {
        loopCounter++;
        final long currentTimeMillis = System.currentTimeMillis();
        if (UserGroupInformation.isSecurityEnabled() && currentTimeMillis >= expiryTime && hdfsKeyTabFile != null) {
            String applicationId = appAttemptID.getApplicationId().toString();
            expiryTime = StramUserLogin.refreshTokens(tokenLifeTime, FileUtils.getTempDirectoryPath(), applicationId, conf, principal, hdfsKeyTabFile, credentials, rmAddress, true);
        }
        if (currentTimeMillis > nodeReportUpdateTime) {
            resourceRequestor.updateNodeReports(clientRMService.getNodeReports());
            nodeReportUpdateTime = currentTimeMillis + UPDATE_NODE_REPORTS_INTERVAL;
        }
        Runnable r;
        while ((r = this.pendingTasks.poll()) != null) {
            r.run();
        }
        // need not have any available containers
        try {
            sleep(1000);
        } catch (InterruptedException e) {
            LOG.info("Sleep interrupted " + e.getMessage());
        }
        // Setup request to be sent to RM to allocate containers
        List<ContainerRequest> containerRequests = new ArrayList<>();
        List<ContainerRequest> removedContainerRequests = new ArrayList<>();
        // request containers for pending deploy requests
        if (!dnmgr.containerStartRequests.isEmpty()) {
            StreamingContainerAgent.ContainerStartRequest csr;
            while ((csr = dnmgr.containerStartRequests.poll()) != null) {
                if (csr.container.getRequiredMemoryMB() > maxMem) {
                    LOG.warn("Container memory {}m above max threshold of cluster. Using max value {}m.", csr.container.getRequiredMemoryMB(), maxMem);
                    csr.container.setRequiredMemoryMB(maxMem);
                }
                if (csr.container.getRequiredMemoryMB() < minMem) {
                    csr.container.setRequiredMemoryMB(minMem);
                }
                if (csr.container.getRequiredVCores() > maxVcores) {
                    LOG.warn("Container vcores {} above max threshold of cluster. Using max value {}.", csr.container.getRequiredVCores(), maxVcores);
                    csr.container.setRequiredVCores(maxVcores);
                }
                if (csr.container.getRequiredVCores() < minVcores) {
                    csr.container.setRequiredVCores(minVcores);
                }
                csr.container.setResourceRequestPriority(nextRequestPriority++);
                ContainerRequest cr = resourceRequestor.createContainerRequest(csr, true);
                if (cr == null) {
                    pendingContainerStartRequests.add(csr);
                } else {
                    resourceRequestor.addContainerRequest(requestedResources, loopCounter, containerRequests, csr, cr);
                }
            }
        }
        // If all other requests are allocated, retry pending requests which need host availability
        if (containerRequests.isEmpty() && !pendingContainerStartRequests.isEmpty()) {
            List<ContainerStartRequest> removalList = new LinkedList<>();
            for (ContainerStartRequest csr : pendingContainerStartRequests) {
                ContainerRequest cr = resourceRequestor.createContainerRequest(csr, true);
                if (cr != null) {
                    resourceRequestor.addContainerRequest(requestedResources, loopCounter, containerRequests, csr, cr);
                    removalList.add(csr);
                }
            }
            pendingContainerStartRequests.removeAll(removalList);
        }
        resourceRequestor.reissueContainerRequests(amRmClient, requestedResources, loopCounter, resourceRequestor, containerRequests, removedContainerRequests);
        /* Remove nodes from blacklist after timeout */
        List<String> blacklistRemovals = new ArrayList<>();
        for (String hostname : failedBlackListedNodes) {
            Long timeDiff = currentTimeMillis - failedContainerNodesMap.get(hostname).blackListAdditionTime;
            if (timeDiff >= blacklistRemovalTime) {
                blacklistRemovals.add(hostname);
                failedContainerNodesMap.remove(hostname);
            }
        }
        if (!blacklistRemovals.isEmpty()) {
            amRmClient.updateBlacklist(null, blacklistRemovals);
            LOG.info("Removing nodes {} from blacklist: time elapsed since last blacklisting due to failure is greater than specified timeout", blacklistRemovals.toString());
            failedBlackListedNodes.removeAll(blacklistRemovals);
        }
        numRequestedContainers += containerRequests.size() - removedContainerRequests.size();
        AllocateResponse amResp = sendContainerAskToRM(containerRequests, removedContainerRequests, releasedContainers);
        if (amResp.getAMCommand() != null) {
            LOG.info(" statement executed:{}", amResp.getAMCommand());
            switch(amResp.getAMCommand()) {
                case AM_RESYNC:
                case AM_SHUTDOWN:
                    throw new YarnRuntimeException("Received the " + amResp.getAMCommand() + " command from RM");
                default:
                    throw new YarnRuntimeException("Received the " + amResp.getAMCommand() + " command from RM");
            }
        }
        releasedContainers.clear();
        // Retrieve list of allocated containers from the response
        List<Container> newAllocatedContainers = amResp.getAllocatedContainers();
        // LOG.info("Got response from RM for container ask, allocatedCnt=" + newAllocatedContainers.size());
        numRequestedContainers -= newAllocatedContainers.size();
        long timestamp = System.currentTimeMillis();
        for (Container allocatedContainer : newAllocatedContainers) {
            LOG.info("Got new container." + ", containerId=" + allocatedContainer.getId() + ", containerNode=" + allocatedContainer.getNodeId() + ", containerNodeURI=" + allocatedContainer.getNodeHttpAddress() + ", containerResourceMemory" + allocatedContainer.getResource().getMemory() + ", priority" + allocatedContainer.getPriority());
            // + ", containerToken" + allocatedContainer.getContainerToken().getIdentifier().toString());
            boolean alreadyAllocated = true;
            StreamingContainerAgent.ContainerStartRequest csr = null;
            for (Map.Entry<StreamingContainerAgent.ContainerStartRequest, MutablePair<Integer, ContainerRequest>> entry : requestedResources.entrySet()) {
                if (entry.getKey().container.getResourceRequestPriority() == allocatedContainer.getPriority().getPriority()) {
                    alreadyAllocated = false;
                    csr = entry.getKey();
                    break;
                }
            }
            if (alreadyAllocated) {
                LOG.info("Releasing {} as resource with priority {} was already assigned", allocatedContainer.getId(), allocatedContainer.getPriority());
                releasedContainers.add(allocatedContainer.getId());
                numReleasedContainers++;
                numRequestedContainers--;
                continue;
            }
            if (csr != null) {
                requestedResources.remove(csr);
            }
            // allocate resource to container
            ContainerResource resource = new ContainerResource(allocatedContainer.getPriority().getPriority(), allocatedContainer.getId().toString(), allocatedContainer.getNodeId().toString(), allocatedContainer.getResource().getMemory(), allocatedContainer.getResource().getVirtualCores(), allocatedContainer.getNodeHttpAddress());
            StreamingContainerAgent sca = dnmgr.assignContainer(resource, null);
            if (sca == null) {
                // allocated container no longer needed, add release request
                LOG.warn("Container {} allocated but nothing to deploy, going to release this container.", allocatedContainer.getId());
                releasedContainers.add(allocatedContainer.getId());
            } else {
                AllocatedContainer allocatedContainerHolder = new AllocatedContainer(allocatedContainer);
                this.allocatedContainers.put(allocatedContainer.getId().toString(), allocatedContainerHolder);
                ByteBuffer tokens = null;
                if (UserGroupInformation.isSecurityEnabled()) {
                    UserGroupInformation ugi = UserGroupInformation.getLoginUser();
                    Token<StramDelegationTokenIdentifier> delegationToken = allocateDelegationToken(ugi.getUserName(), heartbeatListener.getAddress());
                    allocatedContainerHolder.delegationToken = delegationToken;
                    //ByteBuffer tokens = LaunchContainerRunnable.getTokens(delegationTokenManager, heartbeatListener.getAddress());
                    tokens = LaunchContainerRunnable.getTokens(ugi, delegationToken);
                }
                LaunchContainerRunnable launchContainer = new LaunchContainerRunnable(allocatedContainer, nmClient, sca, tokens);
                // Thread launchThread = new Thread(runnableLaunchContainer);
                // launchThreads.add(launchThread);
                // launchThread.start();
                // communication with NMs is now async
                launchContainer.run();
                // record container start event
                StramEvent ev = new StramEvent.StartContainerEvent(allocatedContainer.getId().toString(), allocatedContainer.getNodeId().toString());
                ev.setTimestamp(timestamp);
                dnmgr.recordEventAsync(ev);
            }
        }
        // track node updates for future locality constraint allocations
        // TODO: it seems 2.0.4-alpha doesn't give us any updates
        resourceRequestor.updateNodeReports(amResp.getUpdatedNodes());
        // Check the completed containers
        List<ContainerStatus> completedContainers = amResp.getCompletedContainersStatuses();
        // LOG.debug("Got response from RM for container ask, completedCnt=" + completedContainers.size());
        List<String> blacklistAdditions = new ArrayList<>();
        for (ContainerStatus containerStatus : completedContainers) {
            LOG.info("Completed containerId=" + containerStatus.getContainerId() + ", state=" + containerStatus.getState() + ", exitStatus=" + containerStatus.getExitStatus() + ", diagnostics=" + containerStatus.getDiagnostics());
            // non complete containers should not be here
            assert (containerStatus.getState() == ContainerState.COMPLETE);
            AllocatedContainer allocatedContainer = allocatedContainers.remove(containerStatus.getContainerId().toString());
            if (allocatedContainer != null && allocatedContainer.delegationToken != null) {
                UserGroupInformation ugi = UserGroupInformation.getLoginUser();
                delegationTokenManager.cancelToken(allocatedContainer.delegationToken, ugi.getUserName());
            }
            int exitStatus = containerStatus.getExitStatus();
            if (0 != exitStatus) {
                if (allocatedContainer != null) {
                    numFailedContainers.incrementAndGet();
                    if (exitStatus != 1 && maxConsecutiveContainerFailures != Integer.MAX_VALUE) {
                        // If container failure due to framework
                        String hostname = allocatedContainer.container.getNodeId().getHost();
                        if (!failedBlackListedNodes.contains(hostname)) {
                            // Blacklist the node if not already blacklisted
                            if (failedContainerNodesMap.containsKey(hostname)) {
                                NodeFailureStats stats = failedContainerNodesMap.get(hostname);
                                long timeStamp = System.currentTimeMillis();
                                if (timeStamp - stats.lastFailureTimeStamp >= blacklistRemovalTime) {
                                    // Reset failure count if last failure was before Blacklist removal time
                                    stats.failureCount = 1;
                                    stats.lastFailureTimeStamp = timeStamp;
                                } else {
                                    stats.lastFailureTimeStamp = timeStamp;
                                    stats.failureCount++;
                                    if (stats.failureCount >= maxConsecutiveContainerFailures) {
                                        LOG.info("Node {} failed {} times consecutively within {} minutes, marking the node blacklisted", hostname, stats.failureCount, blacklistRemovalTime / (60 * 1000));
                                        blacklistAdditions.add(hostname);
                                        failedBlackListedNodes.add(hostname);
                                    }
                                }
                            } else {
                                failedContainerNodesMap.put(hostname, new NodeFailureStats(System.currentTimeMillis(), 1));
                            }
                        }
                    }
                }
                //          if (exitStatus == 1) {
                //            // non-recoverable StreamingContainer failure
                //            appDone = true;
                //            finalStatus = FinalApplicationStatus.FAILED;
                //            dnmgr.shutdownDiagnosticsMessage = "Unrecoverable failure " + containerStatus.getContainerId();
                //            LOG.info("Exiting due to: {}", dnmgr.shutdownDiagnosticsMessage);
                //          }
                //          else {
                // Recoverable failure or process killed (externally or via stop request by AM)
                // also occurs when a container was released by the application but never assigned/launched
                LOG.debug("Container {} failed or killed.", containerStatus.getContainerId());
                dnmgr.scheduleContainerRestart(containerStatus.getContainerId().toString());
            //          }
            } else {
                // container completed successfully
                numCompletedContainers.incrementAndGet();
                LOG.info("Container completed successfully." + ", containerId=" + containerStatus.getContainerId());
                // Reset counter for node failure, if exists
                String hostname = allocatedContainer.container.getNodeId().getHost();
                NodeFailureStats stats = failedContainerNodesMap.get(hostname);
                if (stats != null) {
                    stats.failureCount = 0;
                }
            }
            String containerIdStr = containerStatus.getContainerId().toString();
            dnmgr.removeContainerAgent(containerIdStr);
            // record container stop event
            StramEvent ev = new StramEvent.StopContainerEvent(containerIdStr, containerStatus.getExitStatus());
            ev.setReason(containerStatus.getDiagnostics());
            dnmgr.recordEventAsync(ev);
        }
        if (!blacklistAdditions.isEmpty()) {
            amRmClient.updateBlacklist(blacklistAdditions, null);
            long timeStamp = System.currentTimeMillis();
            for (String hostname : blacklistAdditions) {
                NodeFailureStats stats = failedContainerNodesMap.get(hostname);
                stats.blackListAdditionTime = timeStamp;
            }
        }
        if (dnmgr.forcedShutdown) {
            LOG.info("Forced shutdown due to {}", dnmgr.shutdownDiagnosticsMessage);
            finalStatus = FinalApplicationStatus.FAILED;
            appDone = true;
        } else if (allocatedContainers.isEmpty() && numRequestedContainers == 0 && dnmgr.containerStartRequests.isEmpty()) {
            LOG.debug("Exiting as no more containers are allocated or requested");
            finalStatus = FinalApplicationStatus.SUCCEEDED;
            appDone = true;
        }
        LOG.debug("Current application state: loop={}, appDone={}, requested={}, released={}, completed={}, failed={}, currentAllocated={}, dnmgr.containerStartRequests={}", loopCounter, appDone, numRequestedContainers, numReleasedContainers, numCompletedContainers, numFailedContainers, allocatedContainers.size(), dnmgr.containerStartRequests);
        // monitor child containers
        dnmgr.monitorHeartbeat(waitForRecovery > 0);
        waitForRecovery = Math.max(waitForRecovery - 1, 0);
    }
    finishApplication(finalStatus);
}

Example 77 with YarnRuntimeException

use of org.apache.hadoop.yarn.exceptions.YarnRuntimeException in project apex-core by apache.

the class StreamingContainerParent method startRpcServer.

protected void startRpcServer() {
    Configuration conf = getConfig();
    LOG.info("Config: " + conf);
    LOG.info("Listener thread count " + listenerThreadCount);
    try {
        server = new RPC.Builder(conf).setProtocol(StreamingContainerUmbilicalProtocol.class).setInstance(this).setBindAddress("0.0.0.0").setPort(0).setNumHandlers(listenerThreadCount).setSecretManager(tokenSecretManager).setVerbose(false).build();
        // Enable service authorization?
        if (conf.getBoolean(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHORIZATION, false)) {
            //refreshServiceAcls(conf, new MRAMPolicyProvider());
            server.refreshServiceAcl(conf, new PolicyProvider() {

                @Override
                public Service[] getServices() {
                    return (new Service[] { new Service(StreamingContainerUmbilicalProtocol.class.getName(), StreamingContainerUmbilicalProtocol.class) });
                }
            });
        }
        server.start();
        this.address = NetUtils.getConnectAddress(server);
        LOG.info("Container callback server listening at " + this.address);
    } catch (IOException e) {
        throw new YarnRuntimeException(e);
    }
}

Example 78 with YarnRuntimeException

use of org.apache.hadoop.yarn.exceptions.YarnRuntimeException in project hadoop by apache.

the class RMWebServices method createNewReservation.

/**
   * Function that actually creates the {@link ReservationId} by calling the
   * ClientRMService.
   *
   * @return returns structure containing the {@link ReservationId}
   * @throws IOException if creation fails.
   */
private NewReservation createNewReservation() throws IOException {
    GetNewReservationRequest req = recordFactory.newRecordInstance(GetNewReservationRequest.class);
    GetNewReservationResponse resp;
    try {
        resp = rm.getClientRMService().getNewReservation(req);
    } catch (YarnException e) {
        String msg = "Unable to create new reservation from RM web service";
        LOG.error(msg, e);
        throw new YarnRuntimeException(msg, e);
    }
    NewReservation reservationId = new NewReservation(resp.getReservationId().toString());
    return reservationId;
}

Example 79 with YarnRuntimeException

use of org.apache.hadoop.yarn.exceptions.YarnRuntimeException in project hadoop by apache.

the class RMTimelineCollectorManager method doPostPut.

@Override
protected void doPostPut(ApplicationId appId, TimelineCollector collector) {
    RMApp app = rmContext.getRMApps().get(appId);
    if (app == null) {
        throw new YarnRuntimeException("Unable to get the timeline collector context info for a " + "non-existing app " + appId);
    }
    String userId = app.getUser();
    TimelineCollectorContext context = collector.getTimelineEntityContext();
    if (userId != null && !userId.isEmpty()) {
        context.setUserId(userId);
    }
    // initialize the flow in the environment with default values for those
    // that do not specify the flow tags
    // flow name: app name (or app id if app name is missing),
    // flow version: "1", flow run id: start time
    context.setFlowName(TimelineUtils.generateDefaultFlowName(app.getName(), appId));
    context.setFlowVersion(TimelineUtils.DEFAULT_FLOW_VERSION);
    context.setFlowRunId(app.getStartTime());
    // the flow context is received via the application tags
    for (String tag : app.getApplicationTags()) {
        String[] parts = tag.split(":", 2);
        if (parts.length != 2 || parts[1].isEmpty()) {
            continue;
        }
        switch(parts[0].toUpperCase()) {
            case TimelineUtils.FLOW_NAME_TAG_PREFIX:
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Setting the flow name: " + parts[1]);
                }
                context.setFlowName(parts[1]);
                break;
            case TimelineUtils.FLOW_VERSION_TAG_PREFIX:
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Setting the flow version: " + parts[1]);
                }
                context.setFlowVersion(parts[1]);
                break;
            case TimelineUtils.FLOW_RUN_ID_TAG_PREFIX:
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Setting the flow run id: " + parts[1]);
                }
                context.setFlowRunId(Long.parseLong(parts[1]));
                break;
            default:
                break;
        }
    }
}

Example 80 with YarnRuntimeException

use of org.apache.hadoop.yarn.exceptions.YarnRuntimeException in project hadoop by apache.

the class WebAppProxy method serviceInit.

@Override
protected void serviceInit(Configuration conf) throws Exception {
    String auth = conf.get(CommonConfigurationKeys.HADOOP_SECURITY_AUTHENTICATION);
    if (auth == null || "simple".equals(auth)) {
        isSecurityEnabled = false;
    } else if ("kerberos".equals(auth)) {
        isSecurityEnabled = true;
    } else {
        LOG.warn("Unrecognized attribute value for " + CommonConfigurationKeys.HADOOP_SECURITY_AUTHENTICATION + " of " + auth);
    }
    String proxy = WebAppUtils.getProxyHostAndPort(conf);
    String[] proxyParts = proxy.split(":");
    proxyHost = proxyParts[0];
    fetcher = new AppReportFetcher(conf);
    bindAddress = conf.get(YarnConfiguration.PROXY_ADDRESS);
    if (bindAddress == null || bindAddress.isEmpty()) {
        throw new YarnRuntimeException(YarnConfiguration.PROXY_ADDRESS + " is not set so the proxy will not run.");
    }
    LOG.info("Instantiating Proxy at " + bindAddress);
    String[] parts = StringUtils.split(bindAddress, ':');
    port = 0;
    if (parts.length == 2) {
        bindAddress = parts[0];
        port = Integer.parseInt(parts[1]);
    }
    acl = new AccessControlList(conf.get(YarnConfiguration.YARN_ADMIN_ACL, YarnConfiguration.DEFAULT_YARN_ADMIN_ACL));
    super.serviceInit(conf);
}