Examples with TransactionAware org.apache.tephra.TransactionAware used on opensource projects

Example 26 with TransactionAware

use of org.apache.tephra.TransactionAware in project cdap by caskdata.

the class PartitionConsumerTest method testPartitionPutback.

@Test
public void testPartitionPutback() throws Exception {
    final PartitionedFileSet dataset = dsFrameworkUtil.getInstance(pfsInstance);
    final TransactionAware txAwareDataset = (TransactionAware) dataset;
    final Set<PartitionKey> partitionKeys = new HashSet<>();
    for (int i = 0; i < 10; i++) {
        partitionKeys.add(generateUniqueKey());
    }
    final PartitionConsumer partitionConsumer = new ConcurrentPartitionConsumer(dataset, new InMemoryStatePersistor(), ConsumerConfiguration.builder().setMaxRetries(1).build());
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            for (PartitionKey partitionKey : partitionKeys) {
                dataset.getPartitionOutput(partitionKey).addPartition();
            }
        }
    });
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // consume all the partitions
            List<? extends Partition> consumedPartitions = partitionConsumer.consumePartitions().getPartitions();
            Assert.assertEquals(partitionKeys, toKeys(consumedPartitions));
            // consuming the partitions again, without adding any new partitions returns an empty iterator
            Assert.assertTrue(partitionConsumer.consumePartitions().getPartitions().isEmpty());
            // and testing that they are still available for processing, and that there are no failed partitions
            for (int i = 0; i < 5; i++) {
                partitionConsumer.untake(consumedPartitions);
                PartitionConsumerResult result = partitionConsumer.consumePartitions();
                consumedPartitions = result.getPartitions();
                Assert.assertEquals(partitionKeys, toKeys(consumedPartitions));
                Assert.assertEquals(0, result.getFailedPartitions().size());
            }
            // consuming the partitions again, without adding any new partitions returns an empty iterator
            Assert.assertTrue(partitionConsumer.consumePartitions().getPartitions().isEmpty());
            // test functionality to put back a partial subset of the retrieved the partitions
            Partition firstConsumedPartition = consumedPartitions.get(0);
            // test the untakeWithKeys method
            partitionConsumer.untakeWithKeys(ImmutableList.of(firstConsumedPartition.getPartitionKey()));
            consumedPartitions = partitionConsumer.consumePartitions().getPartitions();
            Assert.assertEquals(1, consumedPartitions.size());
            Assert.assertEquals(firstConsumedPartition, consumedPartitions.get(0));
        }
    });
}

Example 27 with TransactionAware

use of org.apache.tephra.TransactionAware in project cdap by caskdata.

the class PartitionConsumerTest method testDroppedPartitions.

@Test
public void testDroppedPartitions() throws Exception {
    // Tests the case of a partition in the partition consumer working set being dropped from the Partitioned
    // FileSet (See CDAP-6215)
    final PartitionedFileSet dataset = dsFrameworkUtil.getInstance(pfsInstance);
    final TransactionAware txAwareDataset = (TransactionAware) dataset;
    ConsumerConfiguration configuration = ConsumerConfiguration.builder().setMaxWorkingSetSize(1).setMaxRetries(2).build();
    final PartitionConsumer partitionConsumer = new ConcurrentPartitionConsumer(dataset, new InMemoryStatePersistor(), configuration);
    final PartitionKey partitionKey1 = generateUniqueKey();
    final PartitionKey partitionKey2 = generateUniqueKey();
    // Note: These two partitions are added in separate transactions, so that the first can exist in the working set
    // without the second. Partitions in the same transaction can not be split up (due to their index being the same)
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            dataset.getPartitionOutput(partitionKey1).addPartition();
        }
    });
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            dataset.getPartitionOutput(partitionKey2).addPartition();
        }
    });
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // consuming and aborting the partition numRetries times plus one (for the first attempt) makes it get removed
            // from the working set
            List<PartitionDetail> partitionDetails = partitionConsumer.consumePartitions(1).getPartitions();
            Assert.assertEquals(1, partitionDetails.size());
            Assert.assertEquals(partitionKey1, partitionDetails.get(0).getPartitionKey());
            // aborting the processing of the partition, to put it back in the working set
            partitionConsumer.onFinish(partitionDetails, false);
        }
    });
    // dropping partitionKey1 from the dataset makes it no longer available for consuming
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            dataset.dropPartition(partitionKey1);
        }
    });
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // first call to consume will drop the partition from the working set, and return nothing, since it was
            // the only partition in the working set
            PartitionConsumerResult result = partitionConsumer.consumePartitions(1);
            Assert.assertEquals(0, result.getPartitions().size());
            Assert.assertEquals(0, result.getFailedPartitions().size());
            // following calls to consumePartitions will repopulate the working set and return additional partition(s)
            result = partitionConsumer.consumePartitions(1);
            Assert.assertEquals(1, result.getPartitions().size());
            Assert.assertEquals(partitionKey2, result.getPartitions().get(0).getPartitionKey());
        }
    });
}

Example 28 with TransactionAware

use of org.apache.tephra.TransactionAware in project cdap by caskdata.

the class PartitionConsumerTest method testCustomOperations.

@Test
public void testCustomOperations() throws Exception {
    final PartitionedFileSet dataset = dsFrameworkUtil.getInstance(pfsInstance);
    final TransactionAware txAwareDataset = (TransactionAware) dataset;
    ConsumerConfiguration configuration = ConsumerConfiguration.builder().setMaxRetries(3).build();
    final PartitionConsumer partitionConsumer = new CustomConsumer(dataset, new InMemoryStatePersistor(), configuration);
    final int numPartitions = 3;
    final List<PartitionKey> partitionKeys = new ArrayList<>(numPartitions);
    for (int i = 0; i < numPartitions; i++) {
        partitionKeys.add(generateUniqueKey());
    }
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            for (PartitionKey partitionKey : partitionKeys) {
                dataset.getPartitionOutput(partitionKey).addPartition();
            }
        }
    });
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            List<PartitionDetail> partitions = partitionConsumer.consumePartitions().getPartitions();
            Assert.assertEquals(numPartitions, partitions.size());
            partitionConsumer.onFinish(partitions, false);
            partitions = partitionConsumer.consumePartitions().getPartitions();
            Assert.assertEquals(numPartitions, partitions.size());
            partitionConsumer.onFinish(partitions, false);
            // after two failure attempts, the partitions are now returned individually
            partitions = partitionConsumer.consumePartitions().getPartitions();
            Assert.assertEquals(1, partitions.size());
            partitionConsumer.onFinish(partitions, true);
            partitions = partitionConsumer.consumePartitions().getPartitions();
            Assert.assertEquals(1, partitions.size());
            partitionConsumer.onFinish(partitions, true);
            partitions = partitionConsumer.consumePartitions().getPartitions();
            Assert.assertEquals(1, partitions.size());
            partitionConsumer.onFinish(partitions, true);
        }
    });
}

Example 29 with TransactionAware

use of org.apache.tephra.TransactionAware in project cdap by caskdata.

the class PartitionedFileSetTest method testPartitionCreationTime.

@Test
public void testPartitionCreationTime() throws Exception {
    final PartitionedFileSet dataset = dsFrameworkUtil.getInstance(pfsInstance);
    dsFrameworkUtil.newTransactionExecutor((TransactionAware) dataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            PartitionOutput partitionOutput = dataset.getPartitionOutput(PARTITION_KEY);
            long beforeTime = System.currentTimeMillis();
            partitionOutput.addPartition();
            long afterTime = System.currentTimeMillis();
            PartitionDetail partitionDetail = dataset.getPartition(PARTITION_KEY);
            Assert.assertNotNull(partitionDetail);
            long creationTime = partitionDetail.getMetadata().getCreationTime();
            long lastModificationTime = partitionDetail.getMetadata().lastModificationTime();
            // lastModificationTime time should be equal to creationTime for a partition that has not been appended to
            Assert.assertEquals(creationTime, lastModificationTime);
            Assert.assertTrue(creationTime >= beforeTime && creationTime <= afterTime);
        }
    });
}

Example 30 with TransactionAware

use of org.apache.tephra.TransactionAware in project cdap by caskdata.

the class PartitionedFileSetTest method testPartitionMetadata.

@Test
public void testPartitionMetadata() throws Exception {
    final PartitionedFileSet dataset = dsFrameworkUtil.getInstance(pfsInstance);
    dsFrameworkUtil.newTransactionExecutor((TransactionAware) dataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            PartitionKey partitionKey = PartitionKey.builder().addIntField("i", 42).addLongField("l", 17L).addStringField("s", "x").build();
            ImmutableMap<String, String> metadata = ImmutableMap.of("key1", "value", "key2", "value2", "key3", "value2");
            PartitionOutput partitionOutput = dataset.getPartitionOutput(partitionKey);
            partitionOutput.setMetadata(metadata);
            partitionOutput.addPartition();
            PartitionDetail partitionDetail = dataset.getPartition(partitionKey);
            Assert.assertNotNull(partitionDetail);
            Assert.assertEquals(metadata, partitionDetail.getMetadata().asMap());
        }
    });
}