Examples with Task org.apache.hyracks.control.nc.Task used on opensource projects

Example 1 with Task

use of org.apache.hyracks.control.nc.Task in project asterixdb by apache.

the class ProfilingPartitionWriterFactory method createFrameWriter.

@Override
public IFrameWriter createFrameWriter(final int receiverIndex) throws HyracksDataException {
    final IFrameWriter writer = new ConnectorSenderProfilingFrameWriter(ctx, delegate.createFrameWriter(receiverIndex), cd.getConnectorId(), senderIndex, receiverIndex);
    return new IFrameWriter() {

        private long openTime;

        private long closeTime;

        MultiResolutionEventProfiler mrep = new MultiResolutionEventProfiler(N_SAMPLES);

        @Override
        public void open() throws HyracksDataException {
            openTime = System.currentTimeMillis();
            writer.open();
        }

        @Override
        public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
            mrep.reportEvent();
            writer.nextFrame(buffer);
        }

        @Override
        public void fail() throws HyracksDataException {
            writer.fail();
        }

        @Override
        public void close() throws HyracksDataException {
            closeTime = System.currentTimeMillis();
            try {
                ((Task) ctx).setPartitionSendProfile(new PartitionProfile(new PartitionId(ctx.getJobletContext().getJobId(), cd.getConnectorId(), senderIndex, receiverIndex), openTime, closeTime, mrep));
            } finally {
                writer.close();
            }
        }

        @Override
        public void flush() throws HyracksDataException {
            writer.flush();
        }
    };
}

Example 2 with Task

use of org.apache.hyracks.control.nc.Task in project asterixdb by apache.

the class AbortTasksWork method run.

@Override
public void run() {
    if (LOGGER.isLoggable(Level.INFO)) {
        LOGGER.info("Aborting Tasks: " + jobId + ":" + tasks);
    }
    IDatasetPartitionManager dpm = ncs.getDatasetPartitionManager();
    if (dpm != null) {
        ncs.getDatasetPartitionManager().abortReader(jobId);
    }
    Joblet ji = ncs.getJobletMap().get(jobId);
    if (ji != null) {
        Map<TaskAttemptId, Task> taskMap = ji.getTaskMap();
        for (TaskAttemptId taId : tasks) {
            Task task = taskMap.get(taId);
            if (task != null) {
                task.abort();
            }
        }
    } else {
        LOGGER.log(Level.WARNING, "Joblet couldn't be found. Tasks of job " + jobId + " have all either completed or failed");
    }
}

Example 3 with Task

use of org.apache.hyracks.control.nc.Task in project asterixdb by apache.

the class StartTasksWork method run.

@Override
public void run() {
    Task task = null;
    try {
        NCServiceContext serviceCtx = ncs.getContext();
        Joblet joblet = getOrCreateLocalJoblet(deploymentId, jobId, serviceCtx, acgBytes);
        final ActivityClusterGraph acg = joblet.getActivityClusterGraph();
        IRecordDescriptorProvider rdp = new IRecordDescriptorProvider() {

            @Override
            public RecordDescriptor getOutputRecordDescriptor(ActivityId aid, int outputIndex) {
                ActivityCluster ac = acg.getActivityMap().get(aid);
                IConnectorDescriptor conn = ac.getActivityOutputMap().get(aid).get(outputIndex);
                return ac.getConnectorRecordDescriptorMap().get(conn.getConnectorId());
            }

            @Override
            public RecordDescriptor getInputRecordDescriptor(ActivityId aid, int inputIndex) {
                ActivityCluster ac = acg.getActivityMap().get(aid);
                IConnectorDescriptor conn = ac.getActivityInputMap().get(aid).get(inputIndex);
                return ac.getConnectorRecordDescriptorMap().get(conn.getConnectorId());
            }
        };
        for (TaskAttemptDescriptor td : taskDescriptors) {
            TaskAttemptId taId = td.getTaskAttemptId();
            TaskId tid = taId.getTaskId();
            ActivityId aid = tid.getActivityId();
            ActivityCluster ac = acg.getActivityMap().get(aid);
            IActivity han = ac.getActivityMap().get(aid);
            if (LOGGER.isLoggable(Level.INFO)) {
                LOGGER.info("Initializing " + taId + " -> " + han);
            }
            final int partition = tid.getPartition();
            List<IConnectorDescriptor> inputs = ac.getActivityInputMap().get(aid);
            task = new Task(joblet, taId, han.getClass().getName(), ncs.getExecutor(), ncs, createInputChannels(td, inputs));
            IOperatorNodePushable operator = han.createPushRuntime(task, rdp, partition, td.getPartitionCount());
            List<IPartitionCollector> collectors = new ArrayList<>();
            if (inputs != null) {
                for (int i = 0; i < inputs.size(); ++i) {
                    IConnectorDescriptor conn = inputs.get(i);
                    IConnectorPolicy cPolicy = connectorPoliciesMap.get(conn.getConnectorId());
                    if (LOGGER.isLoggable(Level.INFO)) {
                        LOGGER.info("input: " + i + ": " + conn.getConnectorId());
                    }
                    RecordDescriptor recordDesc = ac.getConnectorRecordDescriptorMap().get(conn.getConnectorId());
                    IPartitionCollector collector = createPartitionCollector(td, partition, task, i, conn, recordDesc, cPolicy);
                    collectors.add(collector);
                }
            }
            List<IConnectorDescriptor> outputs = ac.getActivityOutputMap().get(aid);
            if (outputs != null) {
                for (int i = 0; i < outputs.size(); ++i) {
                    final IConnectorDescriptor conn = outputs.get(i);
                    RecordDescriptor recordDesc = ac.getConnectorRecordDescriptorMap().get(conn.getConnectorId());
                    IConnectorPolicy cPolicy = connectorPoliciesMap.get(conn.getConnectorId());
                    IPartitionWriterFactory pwFactory = createPartitionWriterFactory(task, cPolicy, jobId, conn, partition, taId, flags);
                    if (LOGGER.isLoggable(Level.INFO)) {
                        LOGGER.info("output: " + i + ": " + conn.getConnectorId());
                    }
                    IFrameWriter writer = conn.createPartitioner(task, recordDesc, pwFactory, partition, td.getPartitionCount(), td.getOutputPartitionCounts()[i]);
                    operator.setOutputFrameWriter(i, writer, recordDesc);
                }
            }
            task.setTaskRuntime(collectors.toArray(new IPartitionCollector[collectors.size()]), operator);
            joblet.addTask(task);
            task.start();
        }
    } catch (Exception e) {
        LOGGER.log(Level.WARNING, "Failure starting a task", e);
        // notify cc of start task failure
        List<Exception> exceptions = new ArrayList<>();
        ExceptionUtils.setNodeIds(exceptions, ncs.getId());
        ncs.getWorkQueue().schedule(new NotifyTaskFailureWork(ncs, task, exceptions));
    }
}