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Example 26 with PartitionKey

use of io.cdap.cdap.api.dataset.lib.PartitionKey in project cdap by caskdata.

the class PartitionConsumerTest method testPartitionConsumingWithFilterAndLimit.

@Test
public void testPartitionConsumingWithFilterAndLimit() throws Exception {
    final PartitionedFileSet dataset = dsFrameworkUtil.getInstance(pfsInstance);
    final TransactionAware txAwareDataset = (TransactionAware) dataset;
    final Set<PartitionKey> partitionKeys1 = new HashSet<>();
    for (int i = 0; i < 10; i++) {
        partitionKeys1.add(generateUniqueKey());
    }
    final Set<PartitionKey> partitionKeys2 = new HashSet<>();
    for (int i = 0; i < 15; i++) {
        partitionKeys2.add(generateUniqueKey());
    }
    final PartitionConsumer partitionConsumer = new ConcurrentPartitionConsumer(dataset, new InMemoryStatePersistor());
    // (consumption only happens at transaction borders)
    for (final PartitionKey partitionKey : partitionKeys1) {
        dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

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

        @Override
        public void apply() throws Exception {
            // Initial consumption results in the partitions corresponding to partitionKeys1 to be consumed because only
            // those partitions are added to the dataset at this point
            List<Partition> consumedPartitions = new ArrayList<>();
            // with limit = 1, the returned iterator is only size 1, even though there are more unconsumed partitions
            Iterables.addAll(consumedPartitions, partitionConsumer.consumePartitions(1).getPartitions());
            Assert.assertEquals(1, consumedPartitions.size());
            // ask for 5 more
            Iterables.addAll(consumedPartitions, partitionConsumer.consumePartitions(5).getPartitions());
            Assert.assertEquals(6, consumedPartitions.size());
            // ask for 5 more, but there are only 4 more unconsumed partitions (size of partitionKeys1 is 10).
            Iterables.addAll(consumedPartitions, partitionConsumer.consumePartitions(5).getPartitions());
            Assert.assertEquals(10, consumedPartitions.size());
            Assert.assertEquals(partitionKeys1, toKeys(consumedPartitions));
        }
    });
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            for (PartitionKey partitionKey : partitionKeys2) {
                dataset.getPartitionOutput(partitionKey).addPartition();
            }
        }
    });
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // using the same PartitionConsumer (which remembers the PartitionConsumerState) to consume additional
            // partitions results in only the newly added partitions (corresponding to partitionKeys2) to be returned
            Assert.assertEquals(partitionKeys2, toKeys(partitionConsumer.consumePartitions().getPartitions()));
        }
    });
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // consuming the partitions again, without adding any new partitions returns an empty iterator
            Assert.assertTrue(partitionConsumer.consumePartitions().getPartitions().isEmpty());
        }
    });
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

        @Override
        public void apply() throws Exception {
            // creating a new PartitionConsumer resets the consumption state.
            // test combination of filter and limit
            // the partitionFilter will match partitionKeys [1, 7), of which there are 6
            final PartitionFilter partitionFilter = PartitionFilter.builder().addRangeCondition("i", 1, 7).build();
            final Predicate<PartitionDetail> predicate = new Predicate<PartitionDetail>() {

                @Override
                public boolean apply(PartitionDetail partitionDetail) {
                    return partitionFilter.match(partitionDetail.getPartitionKey());
                }
            };
            ConsumerConfiguration configuration = ConsumerConfiguration.builder().setPartitionPredicate(predicate).build();
            PartitionConsumer newPartitionConsumer = new ConcurrentPartitionConsumer(dataset, new InMemoryStatePersistor(), configuration);
            List<Partition> consumedPartitions = new ArrayList<>();
            // apply the filter (narrows it down to 6 elements) and apply a limit of 4 results in 4 consumed partitions
            Iterables.addAll(consumedPartitions, newPartitionConsumer.consumePartitions(4).getPartitions());
            Assert.assertEquals(4, consumedPartitions.size());
            // apply a limit of 3, using the same filter returns the remaining 2 elements that fit that filter
            Iterables.addAll(consumedPartitions, newPartitionConsumer.consumePartitions(3).getPartitions());
            Assert.assertEquals(6, consumedPartitions.size());
            // assert that the partitions returned have partition keys, where the i values range from [1, 7]
            Set<Integer> expectedIFields = new HashSet<>();
            for (int i = 1; i < 7; i++) {
                expectedIFields.add(i);
            }
            Set<Integer> actualIFields = new HashSet<>();
            for (Partition consumedPartition : consumedPartitions) {
                actualIFields.add((Integer) consumedPartition.getPartitionKey().getField("i"));
            }
            Assert.assertEquals(expectedIFields, actualIFields);
        }
    });
}
Also used : ConcurrentPartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.ConcurrentPartitionConsumer) ConsumablePartition(io.cdap.cdap.api.dataset.lib.partitioned.ConsumablePartition) Partition(io.cdap.cdap.api.dataset.lib.Partition) ConsumerWorkingSet(io.cdap.cdap.api.dataset.lib.partitioned.ConsumerWorkingSet) HashSet(java.util.HashSet) PartitionedFileSet(io.cdap.cdap.api.dataset.lib.PartitionedFileSet) Set(java.util.Set) PartitionedFileSet(io.cdap.cdap.api.dataset.lib.PartitionedFileSet) TransactionExecutor(org.apache.tephra.TransactionExecutor) PartitionDetail(io.cdap.cdap.api.dataset.lib.PartitionDetail) Predicate(io.cdap.cdap.api.Predicate) PartitionFilter(io.cdap.cdap.api.dataset.lib.PartitionFilter) TransactionAware(org.apache.tephra.TransactionAware) ConsumerConfiguration(io.cdap.cdap.api.dataset.lib.partitioned.ConsumerConfiguration) PartitionKey(io.cdap.cdap.api.dataset.lib.PartitionKey) ArrayList(java.util.ArrayList) ImmutableList(com.google.common.collect.ImmutableList) List(java.util.List) PartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.PartitionConsumer) ConcurrentPartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.ConcurrentPartitionConsumer) HashSet(java.util.HashSet) Test(org.junit.Test)

Example 27 with PartitionKey

use of io.cdap.cdap.api.dataset.lib.PartitionKey in project cdap by caskdata.

the class PartitionConsumerTest method testSimpleConcurrency.

@Test
public void testSimpleConcurrency() 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());
    }
    // have ConcurrentPartitionConsumers that share the same state.
    InMemoryStatePersistor persistor = new InMemoryStatePersistor();
    ConsumerConfiguration configuration = ConsumerConfiguration.builder().setMaxRetries(3).build();
    final PartitionConsumer partitionConsumer1 = new ConcurrentPartitionConsumer(dataset, persistor, configuration);
    final PartitionConsumer partitionConsumer2 = new ConcurrentPartitionConsumer(dataset, persistor, configuration);
    final PartitionConsumer partitionConsumer3 = new ConcurrentPartitionConsumer(dataset, persistor, configuration);
    // add all ten keys to the partitioned fileset
    dsFrameworkUtil.newInMemoryTransactionExecutor(txAwareDataset).execute(new TransactionExecutor.Subroutine() {

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

        @Override
        public void apply() throws Exception {
            // with limit = 1, the returned iterator is only size 1, even though there are more unconsumed partitions
            List<PartitionDetail> consumedBy1 = partitionConsumer1.consumePartitions(1).getPartitions();
            Assert.assertEquals(1, consumedBy1.size());
            // partitionConsumer2 asks for 10 partitions, but 1 is currently in progress by partitionConsumer1, so it only
            // gets the remaining 9 partitions
            List<PartitionDetail> consumedBy2 = partitionConsumer2.consumePartitions(10).getPartitions();
            Assert.assertEquals(9, consumedBy2.size());
            // partitionConsumer3 tries to consume partitions, but all are marked in-progress by partitionConsumer 1 and 2
            Assert.assertEquals(0, partitionConsumer3.consumePartitions().getPartitions().size());
            // partitionConsumer1 aborts its partition, so it then becomes available for partitionConsumer3
            partitionConsumer1.onFinish(consumedBy1, false);
            consumedBy1.clear();
            // queries with limit=2, but only the 1 is available that partitionConsumer1 released
            List<PartitionDetail> consumedBy3 = partitionConsumer3.consumePartitions(2).getPartitions();
            Assert.assertEquals(1, consumedBy3.size());
            // partitionConsumers 2 and 3 marks that it successfully processed the partitions
            partitionConsumer3.onFinish(consumedBy3, true);
            // test onFinishWithKeys API
            List<PartitionKey> keysConsumedBy2 = Lists.transform(consumedBy2, new Function<PartitionDetail, PartitionKey>() {

                @Override
                public PartitionKey apply(PartitionDetail input) {
                    return input.getPartitionKey();
                }
            });
            partitionConsumer2.onFinishWithKeys(keysConsumedBy2, true);
            // at this point, all partitions are processed, so no additional partitions are available for consumption
            Assert.assertEquals(0, partitionConsumer3.consumePartitions().getPartitions().size());
            List<PartitionDetail> allProcessedPartitions = new ArrayList<>();
            allProcessedPartitions.addAll(consumedBy1);
            allProcessedPartitions.addAll(consumedBy2);
            allProcessedPartitions.addAll(consumedBy3);
            // ordering may be different, since all the partitions were added in the same transaction
            Assert.assertEquals(partitionKeys, toKeys(allProcessedPartitions));
        }
    });
}
Also used : ConcurrentPartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.ConcurrentPartitionConsumer) PartitionedFileSet(io.cdap.cdap.api.dataset.lib.PartitionedFileSet) TransactionExecutor(org.apache.tephra.TransactionExecutor) PartitionDetail(io.cdap.cdap.api.dataset.lib.PartitionDetail) Function(com.google.common.base.Function) TransactionAware(org.apache.tephra.TransactionAware) ConsumerConfiguration(io.cdap.cdap.api.dataset.lib.partitioned.ConsumerConfiguration) PartitionKey(io.cdap.cdap.api.dataset.lib.PartitionKey) ArrayList(java.util.ArrayList) ImmutableList(com.google.common.collect.ImmutableList) List(java.util.List) PartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.PartitionConsumer) ConcurrentPartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.ConcurrentPartitionConsumer) HashSet(java.util.HashSet) Test(org.junit.Test)

Example 28 with PartitionKey

use of io.cdap.cdap.api.dataset.lib.PartitionKey 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());
        }
    });
}
Also used : ConcurrentPartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.ConcurrentPartitionConsumer) PartitionConsumerResult(io.cdap.cdap.api.dataset.lib.partitioned.PartitionConsumerResult) PartitionedFileSet(io.cdap.cdap.api.dataset.lib.PartitionedFileSet) TransactionExecutor(org.apache.tephra.TransactionExecutor) TransactionAware(org.apache.tephra.TransactionAware) ConsumerConfiguration(io.cdap.cdap.api.dataset.lib.partitioned.ConsumerConfiguration) PartitionKey(io.cdap.cdap.api.dataset.lib.PartitionKey) ArrayList(java.util.ArrayList) ImmutableList(com.google.common.collect.ImmutableList) List(java.util.List) PartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.PartitionConsumer) ConcurrentPartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.ConcurrentPartitionConsumer) Test(org.junit.Test)

Example 29 with PartitionKey

use of io.cdap.cdap.api.dataset.lib.PartitionKey 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);
        }
    });
}
Also used : ArrayList(java.util.ArrayList) PartitionedFileSet(io.cdap.cdap.api.dataset.lib.PartitionedFileSet) TransactionExecutor(org.apache.tephra.TransactionExecutor) TransactionAware(org.apache.tephra.TransactionAware) ConsumerConfiguration(io.cdap.cdap.api.dataset.lib.partitioned.ConsumerConfiguration) PartitionKey(io.cdap.cdap.api.dataset.lib.PartitionKey) ArrayList(java.util.ArrayList) ImmutableList(com.google.common.collect.ImmutableList) List(java.util.List) PartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.PartitionConsumer) ConcurrentPartitionConsumer(io.cdap.cdap.api.dataset.lib.partitioned.ConcurrentPartitionConsumer) Test(org.junit.Test)

Example 30 with PartitionKey

use of io.cdap.cdap.api.dataset.lib.PartitionKey in project cdap by caskdata.

the class PartitionKeyTest method testEqualityHashCode.

@Test
public void testEqualityHashCode() {
    PartitionKey key1 = PartitionKey.builder().addField("a", "value").addField("b", 1L).addField("c", -17).build();
    PartitionKey key2 = PartitionKey.builder().addField("b", 1L).addField("c", -17).addField("a", "value").build();
    Assert.assertEquals(key1, key2);
    Assert.assertEquals(key1.hashCode(), key2.hashCode());
}
Also used : PartitionKey(io.cdap.cdap.api.dataset.lib.PartitionKey) Test(org.junit.Test)

Aggregations

PartitionKey (io.cdap.cdap.api.dataset.lib.PartitionKey)121 Test (org.junit.Test)55 PartitionedFileSet (io.cdap.cdap.api.dataset.lib.PartitionedFileSet)53 TransactionAware (org.apache.tephra.TransactionAware)34 TransactionExecutor (org.apache.tephra.TransactionExecutor)34 IOException (java.io.IOException)26 PartitionDetail (io.cdap.cdap.api.dataset.lib.PartitionDetail)23 ConcurrentPartitionConsumer (io.cdap.cdap.api.dataset.lib.partitioned.ConcurrentPartitionConsumer)22 PartitionConsumer (io.cdap.cdap.api.dataset.lib.partitioned.PartitionConsumer)22 ArrayList (java.util.ArrayList)22 List (java.util.List)22 HashMap (java.util.HashMap)21 ImmutableList (com.google.common.collect.ImmutableList)18 DataSetException (io.cdap.cdap.api.dataset.DataSetException)18 HashSet (java.util.HashSet)18 Partition (io.cdap.cdap.api.dataset.lib.Partition)14 ConsumerConfiguration (io.cdap.cdap.api.dataset.lib.partitioned.ConsumerConfiguration)14 DatasetId (io.cdap.cdap.proto.id.DatasetId)14 Map (java.util.Map)14 Location (org.apache.twill.filesystem.Location)14