Examples of org.apache.hadoop.yarn.YarnException

org.apache.hadoop.yarn.YarnException
Base Yarn Exception.

            metaInfo.getHistoryFile(), true, metaInfo.getJobIndexInfo().getUser(),
            metaInfo.getConfFile(), this.aclsMgr);
        addToLoadedJobCache(job);
        return job;
      } catch (IOException e) {
        throw new YarnException("Could not find/load job: " + 
            metaInfo.getJobIndexInfo().getJobId(), e);
      }
    }
  }

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    SortedMap<JobId, Job> result = new TreeMap<JobId, Job>();
    try {
      scanIntermediateDirectory();
    } catch (IOException e) {
      LOG.warn("Failed to scan intermediate directory", e);
      throw new YarnException(e);
    }
    for (JobId jobId : intermediateListCache.keySet()) {
      MetaInfo mi = intermediateListCache.get(jobId);
      if (mi != null) {
        result.put(jobId, new PartialJob(mi.getJobIndexInfo(), mi

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    Job job = null;
    try {
      job = findJob(jobId);
      //This could return a null job.
    } catch (IOException e) {
      throw new YarnException(e);
    }
    return job;
  }

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    InetAddress hostNameResolved = null;
    try {
      hostNameResolved = InetAddress.getLocalHost(); 
      //address.getAddress().getLocalHost();
    } catch (UnknownHostException e) {
      throw new YarnException(e);
    }


    server =
        rpc.getServer(MRClientProtocol.class, protocolHandler, address,
            conf, jhsDTSecretManager,

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        parser =
            new JobHistoryParser(historyFileAbsolute.getFileSystem(conf),
                historyFileAbsolute);
        jobInfo = parser.parse();
      } catch (IOException e) {
        throw new YarnException("Could not load history file "
            + historyFileAbsolute, e);
      }
      IOException parseException = parser.getParseException(); 
      if (parseException != null) {
        throw new YarnException(
            "Could not parse history file " + historyFileAbsolute, 
            parseException);
      }
    } else {
      throw new IOException("History file not found");

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      // run the scheduler
      try {
        super.heartbeat();
      } catch (Exception e) {
        LOG.error("error in heartbeat ", e);
        throw new YarnException(e);
      }


      List<TaskAttemptContainerAssignedEvent> result
        = new ArrayList<TaskAttemptContainerAssignedEvent>(events);
      events.clear();

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      @Override
      public void handle(ContainerAllocatorEvent event) {
        try {
          eventQueue.put(event);
        } catch (InterruptedException e) {
          throw new YarnException(e);
        }
      }

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      testAbsPath = new Path(testWorkDir.getAbsolutePath());
      try {
        FileContext.getLocalFSFileContext().delete(testAbsPath, true);
      } catch (Exception e) {
        LOG.warn("COULD NOT CLEANUP: " + testAbsPath, e);
        throw new YarnException("could not cleanup test dir", e);
      }
    }
    
    this.maps = maps;
    this.reduces = reduces;

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  protected Job createJob(Configuration conf) {
    UserGroupInformation currentUser = null;
    try {
      currentUser = UserGroupInformation.getCurrentUser();
    } catch (IOException e) {
      throw new YarnException(e);
    }
    Job newJob = new TestJob(getJobId(), getAttemptID(), conf, 
        getDispatcher().getEventHandler(),
            getTaskAttemptListener(), getContext().getClock(),
            getCommitter(), isNewApiCommitter(),

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      // Note that the state of the failed service is still INITED and not
      // STARTED. Even though the last service is not started completely, still
      // call stop() on all services including failed service to make sure cleanup
      // happens.
      stop(i);
      throw new YarnException("Failed to Start " + getName(), e);
    }


  }

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