Examples with CompositeDataMovementEvent org.apache.tez.runtime.api.events.CompositeDataMovementEvent used on opensource projects

Example 6 with CompositeDataMovementEvent

use of org.apache.tez.runtime.api.events.CompositeDataMovementEvent in project tez by apache.

the class TestUnorderedPartitionedKVWriter method textTest.

public void textTest(int numRegularRecords, int numPartitions, long availableMemory, int numLargeKeys, int numLargevalues, int numLargeKvPairs, boolean pipeliningEnabled, boolean isFinalMergeEnabled) throws IOException, InterruptedException {
    Partitioner partitioner = new HashPartitioner();
    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);
    Random random = new Random();
    Configuration conf = createConfiguration(outputContext, Text.class, Text.class, shouldCompress, -1, HashPartitioner.class);
    conf.setBoolean(TezRuntimeConfiguration.TEZ_RUNTIME_PIPELINED_SHUFFLE_ENABLED, pipeliningEnabled);
    conf.setBoolean(TezRuntimeConfiguration.TEZ_RUNTIME_ENABLE_FINAL_MERGE_IN_OUTPUT, isFinalMergeEnabled);
    CompressionCodec codec = null;
    if (shouldCompress) {
        codec = new DefaultCodec();
        ((Configurable) codec).setConf(conf);
    }
    int numRecordsWritten = 0;
    Map<Integer, Multimap<String, String>> expectedValues = new HashMap<Integer, Multimap<String, String>>();
    for (int i = 0; i < numPartitions; i++) {
        expectedValues.put(i, LinkedListMultimap.<String, String>create());
    }
    UnorderedPartitionedKVWriter kvWriter = new UnorderedPartitionedKVWriterForTest(outputContext, conf, numPartitions, availableMemory);
    int sizePerBuffer = kvWriter.sizePerBuffer;
    BitSet partitionsWithData = new BitSet(numPartitions);
    Text keyText = new Text();
    Text valText = new Text();
    for (int i = 0; i < numRegularRecords; i++) {
        String key = createRandomString(Math.abs(random.nextInt(10)));
        String val = createRandomString(Math.abs(random.nextInt(20)));
        keyText.set(key);
        valText.set(val);
        int partition = partitioner.getPartition(keyText, valText, numPartitions);
        partitionsWithData.set(partition);
        expectedValues.get(partition).put(key, val);
        kvWriter.write(keyText, valText);
        numRecordsWritten++;
    }
    // Write Large key records
    for (int i = 0; i < numLargeKeys; i++) {
        String key = createRandomString(sizePerBuffer + Math.abs(random.nextInt(100)));
        String val = createRandomString(Math.abs(random.nextInt(20)));
        keyText.set(key);
        valText.set(val);
        int partition = partitioner.getPartition(keyText, valText, numPartitions);
        partitionsWithData.set(partition);
        expectedValues.get(partition).put(key, val);
        kvWriter.write(keyText, valText);
        numRecordsWritten++;
    }
    if (pipeliningEnabled) {
        verify(outputContext, times(numLargeKeys)).sendEvents(anyListOf(Event.class));
    }
    // Write Large val records
    for (int i = 0; i < numLargevalues; i++) {
        String key = createRandomString(Math.abs(random.nextInt(10)));
        String val = createRandomString(sizePerBuffer + Math.abs(random.nextInt(100)));
        keyText.set(key);
        valText.set(val);
        int partition = partitioner.getPartition(keyText, valText, numPartitions);
        partitionsWithData.set(partition);
        expectedValues.get(partition).put(key, val);
        kvWriter.write(keyText, valText);
        numRecordsWritten++;
    }
    if (pipeliningEnabled) {
        verify(outputContext, times(numLargevalues + numLargeKeys)).sendEvents(anyListOf(Event.class));
    }
    // Write records where key + val are large (but both can fit in the buffer individually)
    for (int i = 0; i < numLargeKvPairs; i++) {
        String key = createRandomString(sizePerBuffer / 2 + Math.abs(random.nextInt(100)));
        String val = createRandomString(sizePerBuffer / 2 + Math.abs(random.nextInt(100)));
        keyText.set(key);
        valText.set(val);
        int partition = partitioner.getPartition(keyText, valText, numPartitions);
        partitionsWithData.set(partition);
        expectedValues.get(partition).put(key, val);
        kvWriter.write(keyText, valText);
        numRecordsWritten++;
    }
    if (pipeliningEnabled) {
        verify(outputContext, times(numLargevalues + numLargeKeys + numLargeKvPairs)).sendEvents(anyListOf(Event.class));
    }
    List<Event> events = kvWriter.close();
    verify(outputContext, never()).reportFailure(any(TaskFailureType.class), any(Throwable.class), any(String.class));
    if (!pipeliningEnabled) {
        VertexManagerEvent vmEvent = null;
        for (Event event : events) {
            if (event instanceof VertexManagerEvent) {
                assertNull(vmEvent);
                vmEvent = (VertexManagerEvent) event;
            }
        }
        VertexManagerEventPayloadProto vmEventPayload = VertexManagerEventPayloadProto.parseFrom(ByteString.copyFrom(vmEvent.getUserPayload().asReadOnlyBuffer()));
        assertEquals(numRecordsWritten, vmEventPayload.getNumRecord());
    }
    TezCounter outputLargeRecordsCounter = counters.findCounter(TaskCounter.OUTPUT_LARGE_RECORDS);
    assertEquals(numLargeKeys + numLargevalues + numLargeKvPairs, outputLargeRecordsCounter.getValue());
    if (pipeliningEnabled || !isFinalMergeEnabled) {
        // verify spill data files and index file exist
        for (int i = 0; i < kvWriter.numSpills.get(); i++) {
            assertTrue(localFs.exists(kvWriter.outputFileHandler.getSpillFileForWrite(i, 0)));
            assertTrue(localFs.exists(kvWriter.outputFileHandler.getSpillIndexFileForWrite(i, 0)));
        }
        return;
    }
    // Validate the events
    assertEquals(2, events.size());
    assertTrue(events.get(0) instanceof VertexManagerEvent);
    VertexManagerEvent vme = (VertexManagerEvent) events.get(0);
    verifyPartitionStats(vme, partitionsWithData);
    assertTrue(events.get(1) instanceof CompositeDataMovementEvent);
    CompositeDataMovementEvent cdme = (CompositeDataMovementEvent) events.get(1);
    assertEquals(0, cdme.getSourceIndexStart());
    assertEquals(numPartitions, cdme.getCount());
    DataMovementEventPayloadProto eventProto = DataMovementEventPayloadProto.parseFrom(ByteString.copyFrom(cdme.getUserPayload()));
    BitSet emptyPartitionBits = null;
    if (partitionsWithData.cardinality() != numPartitions) {
        assertTrue(eventProto.hasEmptyPartitions());
        byte[] emptyPartitions = TezCommonUtils.decompressByteStringToByteArray(eventProto.getEmptyPartitions());
        emptyPartitionBits = TezUtilsInternal.fromByteArray(emptyPartitions);
        assertEquals(numPartitions - partitionsWithData.cardinality(), emptyPartitionBits.cardinality());
    } else {
        assertFalse(eventProto.hasEmptyPartitions());
        emptyPartitionBits = new BitSet(numPartitions);
    }
    assertEquals(HOST_STRING, eventProto.getHost());
    assertEquals(SHUFFLE_PORT, eventProto.getPort());
    assertEquals(uniqueId, eventProto.getPathComponent());
    // Verify the data
    // Verify the actual data
    TezTaskOutput taskOutput = new TezTaskOutputFiles(conf, uniqueId, dagId);
    Path outputFilePath = kvWriter.finalOutPath;
    Path spillFilePath = kvWriter.finalIndexPath;
    if (numRecordsWritten > 0) {
        assertTrue(localFs.exists(outputFilePath));
        assertTrue(localFs.exists(spillFilePath));
        assertEquals("Incorrect output permissions", (short) 0640, localFs.getFileStatus(outputFilePath).getPermission().toShort());
        assertEquals("Incorrect index permissions", (short) 0640, localFs.getFileStatus(spillFilePath).getPermission().toShort());
    } else {
        return;
    }
    // Special case for 0 records.
    TezSpillRecord spillRecord = new TezSpillRecord(spillFilePath, conf);
    DataInputBuffer keyBuffer = new DataInputBuffer();
    DataInputBuffer valBuffer = new DataInputBuffer();
    Text keyDeser = new Text();
    Text valDeser = new Text();
    for (int i = 0; i < numPartitions; i++) {
        if (emptyPartitionBits.get(i)) {
            continue;
        }
        TezIndexRecord indexRecord = spillRecord.getIndex(i);
        FSDataInputStream inStream = FileSystem.getLocal(conf).open(outputFilePath);
        inStream.seek(indexRecord.getStartOffset());
        IFile.Reader reader = new IFile.Reader(inStream, indexRecord.getPartLength(), codec, null, null, false, 0, -1);
        while (reader.nextRawKey(keyBuffer)) {
            reader.nextRawValue(valBuffer);
            keyDeser.readFields(keyBuffer);
            valDeser.readFields(valBuffer);
            int partition = partitioner.getPartition(keyDeser, valDeser, numPartitions);
            assertTrue(expectedValues.get(partition).remove(keyDeser.toString(), valDeser.toString()));
        }
        inStream.close();
    }
    for (int i = 0; i < numPartitions; i++) {
        assertEquals(0, expectedValues.get(i).size());
        expectedValues.remove(i);
    }
    assertEquals(0, expectedValues.size());
}

Example 7 with CompositeDataMovementEvent

use of org.apache.tez.runtime.api.events.CompositeDataMovementEvent in project tez by apache.

the class TestUnorderedPartitionedKVWriter method baseTest.

private void baseTest(int numRecords, int numPartitions, Set<Integer> skippedPartitions, boolean shouldCompress, int maxSingleBufferSizeBytes, int bufferMergePercent, int availableMemory) 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, maxSingleBufferSizeBytes);
    conf.setInt(TezRuntimeConfiguration.TEZ_RUNTIME_UNORDERED_PARTITIONED_KVWRITER_BUFFER_MERGE_PERCENT, bufferMergePercent);
    CompressionCodec codec = null;
    if (shouldCompress) {
        codec = new DefaultCodec();
        ((Configurable) codec).setConf(conf);
    }
    int numOutputs = numPartitions;
    int numRecordsWritten = 0;
    Map<Integer, Multimap<Integer, Long>> expectedValues = new HashMap<Integer, Multimap<Integer, Long>>();
    for (int i = 0; i < numOutputs; i++) {
        expectedValues.put(i, LinkedListMultimap.<Integer, Long>create());
    }
    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;
    IntWritable intWritable = new IntWritable();
    LongWritable longWritable = new LongWritable();
    BitSet partitionsWithData = new BitSet(numPartitions);
    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);
        expectedValues.get(partition).put(intWritable.get(), longWritable.get());
        kvWriter.write(intWritable, longWritable);
        numRecordsWritten++;
    }
    List<Event> events = kvWriter.close();
    if (numPartitions == 1) {
        assertEquals(true, kvWriter.skipBuffers);
    }
    int recordsPerBuffer = sizePerBuffer / sizePerRecordWithOverhead;
    int numExpectedSpills = numRecordsWritten / recordsPerBuffer / kvWriter.spillLimit;
    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());
    if (numPartitions > 1) {
        assertEquals(numRecordsWritten * sizePerRecordWithOverhead, outputBytesWithOverheadCounter.getValue());
    }
    assertEquals(numRecordsWritten, outputRecordsCounter.getValue());
    long fileOutputBytes = fileOutputBytesCounter.getValue();
    if (numRecordsWritten > 0) {
        assertTrue(fileOutputBytes > 0);
        if (!shouldCompress) {
            assertTrue(fileOutputBytes > outputRecordBytesCounter.getValue());
        }
    } else {
        assertEquals(0, fileOutputBytes);
    }
    assertEquals(recordsPerBuffer * numExpectedSpills, spilledRecordsCounter.getValue());
    long additionalSpillBytesWritten = additionalSpillBytesWritternCounter.getValue();
    long additionalSpillBytesRead = additionalSpillBytesReadCounter.getValue();
    if (numExpectedSpills == 0) {
        assertEquals(0, additionalSpillBytesWritten);
        assertEquals(0, additionalSpillBytesRead);
    } else {
        assertTrue(additionalSpillBytesWritten > 0);
        assertTrue(additionalSpillBytesRead > 0);
        if (!shouldCompress) {
            assertTrue(additionalSpillBytesWritten > (recordsPerBuffer * numExpectedSpills * sizePerRecord));
            assertTrue(additionalSpillBytesRead > (recordsPerBuffer * numExpectedSpills * sizePerRecord));
        }
    }
    assertEquals(additionalSpillBytesWritten, additionalSpillBytesRead);
    // due to multiple threads, buffers could be merged in chunks in scheduleSpill.
    assertTrue(numExpectedSpills >= numAdditionalSpillsCounter.getValue());
    BitSet emptyPartitionBits = null;
    // Verify the events returned
    assertEquals(2, events.size());
    assertTrue(events.get(0) instanceof VertexManagerEvent);
    VertexManagerEvent vme = (VertexManagerEvent) events.get(0);
    verifyPartitionStats(vme, partitionsWithData);
    assertTrue(events.get(1) instanceof CompositeDataMovementEvent);
    CompositeDataMovementEvent cdme = (CompositeDataMovementEvent) events.get(1);
    assertEquals(0, cdme.getSourceIndexStart());
    assertEquals(numOutputs, cdme.getCount());
    DataMovementEventPayloadProto eventProto = DataMovementEventPayloadProto.parseFrom(ByteString.copyFrom(cdme.getUserPayload()));
    if (skippedPartitions == null && numRecordsWritten > 0) {
        assertFalse(eventProto.hasEmptyPartitions());
        emptyPartitionBits = new BitSet(numPartitions);
    } else {
        assertTrue(eventProto.hasEmptyPartitions());
        byte[] emptyPartitions = TezCommonUtils.decompressByteStringToByteArray(eventProto.getEmptyPartitions());
        emptyPartitionBits = TezUtilsInternal.fromByteArray(emptyPartitions);
        if (numRecordsWritten == 0) {
            assertEquals(numPartitions, emptyPartitionBits.cardinality());
        } else {
            for (Integer e : skippedPartitions) {
                assertTrue(emptyPartitionBits.get(e));
            }
            assertEquals(skippedPartitions.size(), emptyPartitionBits.cardinality());
        }
    }
    if (emptyPartitionBits.cardinality() != numPartitions) {
        assertEquals(HOST_STRING, eventProto.getHost());
        assertEquals(SHUFFLE_PORT, eventProto.getPort());
        assertEquals(uniqueId, eventProto.getPathComponent());
    } else {
        assertFalse(eventProto.hasHost());
        assertFalse(eventProto.hasPort());
        assertFalse(eventProto.hasPathComponent());
    }
    // Verify the actual data
    TezTaskOutput taskOutput = new TezTaskOutputFiles(conf, uniqueId, dagId);
    Path outputFilePath = kvWriter.finalOutPath;
    Path spillFilePath = kvWriter.finalIndexPath;
    if (numRecordsWritten <= 0) {
        return;
    }
    assertTrue(localFs.exists(outputFilePath));
    assertTrue(localFs.exists(spillFilePath));
    // verify no intermediate spill files have been left around
    synchronized (kvWriter.spillInfoList) {
        for (SpillInfo spill : kvWriter.spillInfoList) {
            assertFalse("lingering intermediate spill file " + spill.outPath, localFs.exists(spill.outPath));
        }
    }
    // Special case for 0 records.
    TezSpillRecord spillRecord = new TezSpillRecord(spillFilePath, conf);
    DataInputBuffer keyBuffer = new DataInputBuffer();
    DataInputBuffer valBuffer = new DataInputBuffer();
    IntWritable keyDeser = new IntWritable();
    LongWritable valDeser = new LongWritable();
    for (int i = 0; i < numOutputs; i++) {
        TezIndexRecord indexRecord = spillRecord.getIndex(i);
        if (skippedPartitions != null && skippedPartitions.contains(i)) {
            assertFalse("The Index Record for partition " + i + " should not have any data", indexRecord.hasData());
            continue;
        }
        FSDataInputStream inStream = FileSystem.getLocal(conf).open(outputFilePath);
        inStream.seek(indexRecord.getStartOffset());
        IFile.Reader reader = new IFile.Reader(inStream, indexRecord.getPartLength(), codec, null, null, false, 0, -1);
        while (reader.nextRawKey(keyBuffer)) {
            reader.nextRawValue(valBuffer);
            keyDeser.readFields(keyBuffer);
            valDeser.readFields(valBuffer);
            int partition = partitioner.getPartition(keyDeser, valDeser, numOutputs);
            assertTrue(expectedValues.get(partition).remove(keyDeser.get(), valDeser.get()));
        }
        inStream.close();
    }
    for (int i = 0; i < numOutputs; i++) {
        assertEquals(0, expectedValues.get(i).size());
        expectedValues.remove(i);
    }
    assertEquals(0, expectedValues.size());
    verify(outputContext, atLeast(1)).notifyProgress();
}

Example 8 with CompositeDataMovementEvent

use of org.apache.tez.runtime.api.events.CompositeDataMovementEvent in project tez by apache.

the class TestUnorderedPartitionedKVWriter method baseTestWithFinalMergeDisabled.

@SuppressWarnings("unchecked")
private void baseTestWithFinalMergeDisabled(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, false);
    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(true, kvWriter.skipBuffers);
    }
    // max events sent are spills + one VM event. If there are no spills, atleast empty
    // partitions would be sent out finally.
    int spills = Math.max(1, kvWriter.numSpills.get());
    // spills + VMEvent
    assertEquals((spills + 1), lastEvents.size());
    verify(outputContext, atMost(0)).sendEvents(eventCaptor.capture());
    for (int i = 0; i < lastEvents.size(); i++) {
        Event event = lastEvents.get(i);
        if (event instanceof VertexManagerEvent) {
            // to stats.
            if (numRecordsWritten > 0) {
                verifyPartitionStats(((VertexManagerEvent) event), 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());
    if (outputRecordsCounter.getValue() > 0) {
        assertEquals(numRecordsWritten * sizePerRecordWithOverhead, outputBytesWithOverheadCounter.getValue());
    } else {
        assertEquals(0, outputBytesWithOverheadCounter.getValue());
    }
    long fileOutputBytes = fileOutputBytesCounter.getValue();
    if (numRecordsWritten > 0) {
        assertTrue(fileOutputBytes > 0);
        if (!shouldCompress) {
            assertTrue("fileOutputBytes=" + fileOutputBytes + ", outputRecordBytes=" + outputRecordBytesCounter.getValue(), 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()));
    verifyEmptyPartitions(eventProto, numRecordsWritten, numPartitions, skippedPartitions);
    if (outputRecordsCounter.getValue() > 0) {
        // Ensure that this is the last event
        assertTrue(eventProto.getLastEvent());
    }
    // Verify if all path components have spillIds when final merge is disabled
    Pattern mergePathComponentPattern = Pattern.compile("(.*)(_\\d+)");
    for (Event event : lastEvents) {
        if (!(event instanceof CompositeDataMovementEvent)) {
            continue;
        }
        cdme = (CompositeDataMovementEvent) event;
        eventProto = DataMovementEventPayloadProto.parseFrom(ByteString.copyFrom(cdme.getUserPayload()));
        assertEquals(false, eventProto.getPipelined());
        if (eventProto.hasPathComponent()) {
            // for final merge disabled cases, it should have _spillId
            Matcher matcher = mergePathComponentPattern.matcher(eventProto.getPathComponent());
            assertTrue("spill id should be present in path component " + eventProto.getPathComponent(), matcher.matches());
            assertEquals(2, matcher.groupCount());
            assertEquals(uniqueId, matcher.group(1));
            assertTrue("spill id should be present in path component", matcher.group(2) != null);
            Path outputPath = new Path(outputContext.getWorkDirs()[0], "output/" + eventProto.getPathComponent() + "/" + Constants.TEZ_RUNTIME_TASK_OUTPUT_FILENAME_STRING);
            Path indexPath = outputPath.suffix(Constants.TEZ_RUNTIME_TASK_OUTPUT_INDEX_SUFFIX_STRING);
            assertEquals("Incorrect output permissions", (short) 0640, localFs.getFileStatus(outputPath).getPermission().toShort());
            assertEquals("Incorrect index permissions", (short) 0640, localFs.getFileStatus(indexPath).getPermission().toShort());
        } else {
            assertEquals(0, eventProto.getSpillId());
            if (outputRecordsCounter.getValue() > 0) {
                assertEquals(true, eventProto.getLastEvent());
            } else {
                byte[] emptyPartitions = TezCommonUtils.decompressByteStringToByteArray(eventProto.getEmptyPartitions());
                BitSet emptyPartitionBits = TezUtilsInternal.fromByteArray(emptyPartitions);
                assertEquals(numPartitions, emptyPartitionBits.cardinality());
            }
        }
    }
    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++) {
            assertTrue(localFs.exists(taskOutput.getSpillFileForWrite(i, 10)));
            assertTrue(localFs.exists(taskOutput.getSpillIndexFileForWrite(i, 10)));
        }
    } else {
        return;
    }
}

Example 9 with CompositeDataMovementEvent

use of org.apache.tez.runtime.api.events.CompositeDataMovementEvent in project tez by apache.

the class TestOnFileUnorderedKVOutput method testWithPipelinedShuffle.

@Test(timeout = 30000)
@SuppressWarnings("unchecked")
public void testWithPipelinedShuffle() throws Exception {
    Configuration conf = new Configuration();
    conf.set(TezRuntimeConfiguration.TEZ_RUNTIME_KEY_CLASS, Text.class.getName());
    conf.set(TezRuntimeConfiguration.TEZ_RUNTIME_VALUE_CLASS, IntWritable.class.getName());
    conf.setBoolean(TezRuntimeConfiguration.TEZ_RUNTIME_PIPELINED_SHUFFLE_ENABLED, true);
    conf.setBoolean(TezRuntimeConfiguration.TEZ_RUNTIME_ENABLE_FINAL_MERGE_IN_OUTPUT, false);
    conf.setInt(TezRuntimeConfiguration.TEZ_RUNTIME_UNORDERED_OUTPUT_BUFFER_SIZE_MB, 1);
    TezSharedExecutor sharedExecutor = new TezSharedExecutor(conf);
    OutputContext outputContext = createOutputContext(conf, sharedExecutor);
    UnorderedKVOutput kvOutput = new UnorderedKVOutput(outputContext, 1);
    List<Event> events = null;
    events = kvOutput.initialize();
    kvOutput.start();
    assertTrue(events != null && events.size() == 0);
    KeyValueWriter kvWriter = kvOutput.getWriter();
    for (int i = 0; i < 500; i++) {
        kvWriter.write(new Text(RandomStringUtils.randomAscii(10000)), new IntWritable(i));
    }
    events = kvOutput.close();
    // When pipelining is on, all events are sent out within writer itself.
    assertTrue(events != null && events.size() == 0);
    // ensure that data is sent via outputContext.
    ArgumentCaptor<List> eventsCaptor = ArgumentCaptor.forClass(List.class);
    verify(outputContext, atLeast(1)).sendEvents(eventsCaptor.capture());
    events = eventsCaptor.getValue();
    CompositeDataMovementEvent dmEvent = (CompositeDataMovementEvent) events.get(1);
    assertEquals("Invalid source index", 0, dmEvent.getSourceIndexStart());
    DataMovementEventPayloadProto shufflePayload = DataMovementEventPayloadProto.parseFrom(ByteString.copyFrom(dmEvent.getUserPayload()));
    assertTrue(shufflePayload.hasLastEvent());
    assertFalse(shufflePayload.hasEmptyPartitions());
    assertEquals(shufflePort, shufflePayload.getPort());
    assertEquals("localhost", shufflePayload.getHost());
    sharedExecutor.shutdownNow();
}

Example 10 with CompositeDataMovementEvent

use of org.apache.tez.runtime.api.events.CompositeDataMovementEvent in project tez by apache.

the class TestOnFileSortedOutput method baseTest.

@Test(timeout = 5000)
public void baseTest() throws Exception {
    startSortedOutput(partitions);
    // Write random set of keys
    long recordsWritten = numRecords.get();
    for (int i = 0; i < Math.max(1, rnd.nextInt(50)); i++) {
        Text key = new Text(new BigInteger(256, rnd).toString());
        LinkedList values = new LinkedList();
        for (int j = 0; j < Math.max(2, rnd.nextInt(10)); j++) {
            recordsWritten++;
            values.add(new Text(new BigInteger(256, rnd).toString()));
        }
        writer.write(key, values);
    }
    List<Event> eventList = sortedOutput.close();
    assertTrue(eventList != null && eventList.size() == 2);
    assertEquals(recordsWritten, numRecords.get());
    ShuffleUserPayloads.DataMovementEventPayloadProto payload = ShuffleUserPayloads.DataMovementEventPayloadProto.parseFrom(ByteString.copyFrom(((CompositeDataMovementEvent) eventList.get(1)).getUserPayload()));
    ShuffleUserPayloads.VertexManagerEventPayloadProto vmPayload = ShuffleUserPayloads.VertexManagerEventPayloadProto.parseFrom(ByteString.copyFrom(((VertexManagerEvent) eventList.get(0)).getUserPayload()));
    if (reportPartitionStats.isPrecise()) {
        assertTrue(vmPayload.hasDetailedPartitionStats());
    } else {
        assertTrue(vmPayload.hasPartitionStats());
    }
    assertEquals(HOST, payload.getHost());
    assertEquals(PORT, payload.getPort());
    assertEquals(UniqueID, payload.getPathComponent());
}