Examples with TezTaskOutput org.apache.tez.runtime.library.common.task.local.output.TezTaskOutput used on opensource projects

Example 6 with TezTaskOutput

use of org.apache.tez.runtime.library.common.task.local.output.TezTaskOutput in project tez by apache.

the class TestUnorderedPartitionedKVWriter method baseTestWithPipelinedTransfer.

@SuppressWarnings("unchecked")
private void baseTestWithPipelinedTransfer(int numRecords, int numPartitions, Set<Integer> skippedPartitions, boolean shouldCompress) throws IOException, InterruptedException {
    PartitionerForTest partitioner = new PartitionerForTest();
    ApplicationId appId = ApplicationId.newInstance(10000000, 1);
    TezCounters counters = new TezCounters();
    String uniqueId = UUID.randomUUID().toString();
    int dagId = 1;
    String auxiliaryService = defaultConf.get(TezConfiguration.TEZ_AM_SHUFFLE_AUXILIARY_SERVICE_ID, TezConfiguration.TEZ_AM_SHUFFLE_AUXILIARY_SERVICE_ID_DEFAULT);
    OutputContext outputContext = createMockOutputContext(counters, appId, uniqueId, auxiliaryService);
    Configuration conf = createConfiguration(outputContext, IntWritable.class, LongWritable.class, shouldCompress, -1);
    conf.setBoolean(TezRuntimeConfiguration.TEZ_RUNTIME_ENABLE_FINAL_MERGE_IN_OUTPUT, false);
    conf.setBoolean(TezRuntimeConfiguration.TEZ_RUNTIME_PIPELINED_SHUFFLE_ENABLED, true);
    CompressionCodec codec = null;
    if (shouldCompress) {
        codec = new DefaultCodec();
        ((Configurable) codec).setConf(conf);
    }
    int numOutputs = numPartitions;
    long availableMemory = 2048;
    int numRecordsWritten = 0;
    UnorderedPartitionedKVWriter kvWriter = new UnorderedPartitionedKVWriterForTest(outputContext, conf, numOutputs, availableMemory);
    int sizePerBuffer = kvWriter.sizePerBuffer;
    // IntW + LongW
    int sizePerRecord = 4 + 8;
    // Record + META_OVERHEAD
    int sizePerRecordWithOverhead = sizePerRecord + 12;
    BitSet partitionsWithData = new BitSet(numPartitions);
    IntWritable intWritable = new IntWritable();
    LongWritable longWritable = new LongWritable();
    for (int i = 0; i < numRecords; i++) {
        intWritable.set(i);
        longWritable.set(i);
        int partition = partitioner.getPartition(intWritable, longWritable, numOutputs);
        if (skippedPartitions != null && skippedPartitions.contains(partition)) {
            continue;
        }
        partitionsWithData.set(partition);
        kvWriter.write(intWritable, longWritable);
        numRecordsWritten++;
    }
    int recordsPerBuffer = sizePerBuffer / sizePerRecordWithOverhead;
    int numExpectedSpills = numRecordsWritten / recordsPerBuffer;
    ArgumentCaptor<List> eventCaptor = ArgumentCaptor.forClass(List.class);
    List<Event> lastEvents = kvWriter.close();
    if (numPartitions == 1) {
        assertEquals(false, kvWriter.skipBuffers);
    }
    // no events are sent to kvWriter upon close with pipelining
    assertTrue(lastEvents.size() == 0);
    verify(outputContext, atLeast(numExpectedSpills)).sendEvents(eventCaptor.capture());
    int numOfCapturedEvents = eventCaptor.getAllValues().size();
    lastEvents = eventCaptor.getAllValues().get(numOfCapturedEvents - 1);
    VertexManagerEvent VMEvent = (VertexManagerEvent) lastEvents.get(0);
    for (int i = 0; i < numOfCapturedEvents; i++) {
        List<Event> events = eventCaptor.getAllValues().get(i);
        if (i < numOfCapturedEvents - 1) {
            assertTrue(events.size() == 1);
            assertTrue(events.get(0) instanceof CompositeDataMovementEvent);
        } else {
            assertTrue(events.size() == 2);
            assertTrue(events.get(0) instanceof VertexManagerEvent);
            assertTrue(events.get(1) instanceof CompositeDataMovementEvent);
        }
    }
    verifyPartitionStats(VMEvent, partitionsWithData);
    verify(outputContext, never()).reportFailure(any(TaskFailureType.class), any(Throwable.class), any(String.class));
    assertNull(kvWriter.currentBuffer);
    assertEquals(0, kvWriter.availableBuffers.size());
    // Verify the counters
    TezCounter outputRecordBytesCounter = counters.findCounter(TaskCounter.OUTPUT_BYTES);
    TezCounter outputRecordsCounter = counters.findCounter(TaskCounter.OUTPUT_RECORDS);
    TezCounter outputBytesWithOverheadCounter = counters.findCounter(TaskCounter.OUTPUT_BYTES_WITH_OVERHEAD);
    TezCounter fileOutputBytesCounter = counters.findCounter(TaskCounter.OUTPUT_BYTES_PHYSICAL);
    TezCounter spilledRecordsCounter = counters.findCounter(TaskCounter.SPILLED_RECORDS);
    TezCounter additionalSpillBytesWritternCounter = counters.findCounter(TaskCounter.ADDITIONAL_SPILLS_BYTES_WRITTEN);
    TezCounter additionalSpillBytesReadCounter = counters.findCounter(TaskCounter.ADDITIONAL_SPILLS_BYTES_READ);
    TezCounter numAdditionalSpillsCounter = counters.findCounter(TaskCounter.ADDITIONAL_SPILL_COUNT);
    assertEquals(numRecordsWritten * sizePerRecord, outputRecordBytesCounter.getValue());
    assertEquals(numRecordsWritten, outputRecordsCounter.getValue());
    assertEquals(numRecordsWritten * sizePerRecordWithOverhead, outputBytesWithOverheadCounter.getValue());
    long fileOutputBytes = fileOutputBytesCounter.getValue();
    if (numRecordsWritten > 0) {
        assertTrue(fileOutputBytes > 0);
        if (!shouldCompress) {
            assertTrue(fileOutputBytes > outputRecordBytesCounter.getValue());
        }
    } else {
        assertEquals(0, fileOutputBytes);
    }
    // due to multiple threads, buffers could be merged in chunks in scheduleSpill.
    assertTrue(recordsPerBuffer * numExpectedSpills >= spilledRecordsCounter.getValue());
    long additionalSpillBytesWritten = additionalSpillBytesWritternCounter.getValue();
    long additionalSpillBytesRead = additionalSpillBytesReadCounter.getValue();
    // No additional spill bytes written when final merge is disabled.
    assertEquals(additionalSpillBytesWritten, 0);
    // No additional spills when final merge is disabled.
    assertTrue(additionalSpillBytesWritten == additionalSpillBytesRead);
    // No additional spills when final merge is disabled.
    assertEquals(numAdditionalSpillsCounter.getValue(), 0);
    assertTrue(lastEvents.size() > 0);
    // Get the last event
    int index = lastEvents.size() - 1;
    assertTrue(lastEvents.get(index) instanceof CompositeDataMovementEvent);
    CompositeDataMovementEvent cdme = (CompositeDataMovementEvent) lastEvents.get(index);
    assertEquals(0, cdme.getSourceIndexStart());
    assertEquals(numOutputs, cdme.getCount());
    DataMovementEventPayloadProto eventProto = DataMovementEventPayloadProto.parseFrom(ByteString.copyFrom(cdme.getUserPayload()));
    // Ensure that this is the last event
    assertTrue(eventProto.getLastEvent());
    verifyEmptyPartitions(eventProto, numRecordsWritten, numPartitions, skippedPartitions);
    verify(outputContext, atLeast(1)).notifyProgress();
    // Verify if all spill files are available.
    TezTaskOutput taskOutput = new TezTaskOutputFiles(conf, uniqueId, dagId);
    if (numRecordsWritten > 0) {
        int numSpills = kvWriter.numSpills.get();
        for (int i = 0; i < numSpills; i++) {
            Path outputFile = taskOutput.getSpillFileForWrite(i, 10);
            Path indexFile = taskOutput.getSpillIndexFileForWrite(i, 10);
            assertTrue(localFs.exists(outputFile));
            assertTrue(localFs.exists(indexFile));
            assertEquals("Incorrect output permissions", (short) 0640, localFs.getFileStatus(outputFile).getPermission().toShort());
            assertEquals("Incorrect index permissions", (short) 0640, localFs.getFileStatus(indexFile).getPermission().toShort());
        }
    } else {
        return;
    }
}