Examples with ExecutionConfig org.apache.flink.api.common.ExecutionConfig used on opensource projects

Example 96 with ExecutionConfig

use of org.apache.flink.api.common.ExecutionConfig in project flink by apache.

the class GroupReduceDriver method prepare.

// --------------------------------------------------------------------------------------------
@Override
public void prepare() throws Exception {
    TaskConfig config = this.taskContext.getTaskConfig();
    if (config.getDriverStrategy() != DriverStrategy.SORTED_GROUP_REDUCE) {
        throw new Exception("Unrecognized driver strategy for GroupReduce driver: " + config.getDriverStrategy().name());
    }
    final Counter numRecordsIn = this.taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
    this.serializer = this.taskContext.<IT>getInputSerializer(0).getSerializer();
    this.comparator = this.taskContext.getDriverComparator(0);
    this.input = new CountingMutableObjectIterator<>(this.taskContext.<IT>getInput(0), numRecordsIn);
    ExecutionConfig executionConfig = taskContext.getExecutionConfig();
    this.objectReuseEnabled = executionConfig.isObjectReuseEnabled();
    if (LOG.isDebugEnabled()) {
        LOG.debug("GroupReduceDriver object reuse: " + (this.objectReuseEnabled ? "ENABLED" : "DISABLED") + ".");
    }
}

Example 97 with ExecutionConfig

use of org.apache.flink.api.common.ExecutionConfig in project flink by apache.

the class JoinDriver method prepare.

@Override
public void prepare() throws Exception {
    final TaskConfig config = this.taskContext.getTaskConfig();
    final Counter numRecordsIn = this.taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
    // obtain task manager's memory manager and I/O manager
    final MemoryManager memoryManager = this.taskContext.getMemoryManager();
    final IOManager ioManager = this.taskContext.getIOManager();
    // set up memory and I/O parameters
    final double fractionAvailableMemory = config.getRelativeMemoryDriver();
    final int numPages = memoryManager.computeNumberOfPages(fractionAvailableMemory);
    // test minimum memory requirements
    final DriverStrategy ls = config.getDriverStrategy();
    final MutableObjectIterator<IT1> in1 = new CountingMutableObjectIterator<>(this.taskContext.<IT1>getInput(0), numRecordsIn);
    final MutableObjectIterator<IT2> in2 = new CountingMutableObjectIterator<>(this.taskContext.<IT2>getInput(1), numRecordsIn);
    // get the key positions and types
    final TypeSerializer<IT1> serializer1 = this.taskContext.<IT1>getInputSerializer(0).getSerializer();
    final TypeSerializer<IT2> serializer2 = this.taskContext.<IT2>getInputSerializer(1).getSerializer();
    final TypeComparator<IT1> comparator1 = this.taskContext.getDriverComparator(0);
    final TypeComparator<IT2> comparator2 = this.taskContext.getDriverComparator(1);
    final TypePairComparatorFactory<IT1, IT2> pairComparatorFactory = config.getPairComparatorFactory(this.taskContext.getUserCodeClassLoader());
    if (pairComparatorFactory == null) {
        throw new Exception("Missing pair comparator factory for join driver");
    }
    ExecutionConfig executionConfig = taskContext.getExecutionConfig();
    boolean objectReuseEnabled = executionConfig.isObjectReuseEnabled();
    if (LOG.isDebugEnabled()) {
        LOG.debug("Join Driver object reuse: " + (objectReuseEnabled ? "ENABLED" : "DISABLED") + ".");
    }
    boolean hashJoinUseBitMaps = taskContext.getTaskManagerInfo().getConfiguration().getBoolean(ConfigConstants.RUNTIME_HASH_JOIN_BLOOM_FILTERS_KEY, ConfigConstants.DEFAULT_RUNTIME_HASH_JOIN_BLOOM_FILTERS);
    // create and return joining iterator according to provided local strategy.
    if (objectReuseEnabled) {
        switch(ls) {
            case INNER_MERGE:
                this.joinIterator = new ReusingMergeInnerJoinIterator<>(in1, in2, serializer1, comparator1, serializer2, comparator2, pairComparatorFactory.createComparator12(comparator1, comparator2), memoryManager, ioManager, numPages, this.taskContext.getContainingTask());
                break;
            case HYBRIDHASH_BUILD_FIRST:
                this.joinIterator = new ReusingBuildFirstHashJoinIterator<>(in1, in2, serializer1, comparator1, serializer2, comparator2, pairComparatorFactory.createComparator21(comparator1, comparator2), memoryManager, ioManager, this.taskContext.getContainingTask(), fractionAvailableMemory, false, false, hashJoinUseBitMaps);
                break;
            case HYBRIDHASH_BUILD_SECOND:
                this.joinIterator = new ReusingBuildSecondHashJoinIterator<>(in1, in2, serializer1, comparator1, serializer2, comparator2, pairComparatorFactory.createComparator12(comparator1, comparator2), memoryManager, ioManager, this.taskContext.getContainingTask(), fractionAvailableMemory, false, false, hashJoinUseBitMaps);
                break;
            default:
                throw new Exception("Unsupported driver strategy for join driver: " + ls.name());
        }
    } else {
        switch(ls) {
            case INNER_MERGE:
                this.joinIterator = new NonReusingMergeInnerJoinIterator<>(in1, in2, serializer1, comparator1, serializer2, comparator2, pairComparatorFactory.createComparator12(comparator1, comparator2), memoryManager, ioManager, numPages, this.taskContext.getContainingTask());
                break;
            case HYBRIDHASH_BUILD_FIRST:
                this.joinIterator = new NonReusingBuildFirstHashJoinIterator<>(in1, in2, serializer1, comparator1, serializer2, comparator2, pairComparatorFactory.createComparator21(comparator1, comparator2), memoryManager, ioManager, this.taskContext.getContainingTask(), fractionAvailableMemory, false, false, hashJoinUseBitMaps);
                break;
            case HYBRIDHASH_BUILD_SECOND:
                this.joinIterator = new NonReusingBuildSecondHashJoinIterator<>(in1, in2, serializer1, comparator1, serializer2, comparator2, pairComparatorFactory.createComparator12(comparator1, comparator2), memoryManager, ioManager, this.taskContext.getContainingTask(), fractionAvailableMemory, false, false, hashJoinUseBitMaps);
                break;
            default:
                throw new Exception("Unsupported driver strategy for join driver: " + ls.name());
        }
    }
    // open the iterator - this triggers the sorting or hash-table building
    // and blocks until the iterator is ready
    this.joinIterator.open();
    if (LOG.isDebugEnabled()) {
        LOG.debug(this.taskContext.formatLogString("join task iterator ready."));
    }
}

Example 98 with ExecutionConfig

use of org.apache.flink.api.common.ExecutionConfig in project flink by apache.

the class JoinWithSolutionSetSecondDriver method initialize.

// --------------------------------------------------------------------------------------------
@Override
@SuppressWarnings("unchecked")
public void initialize() throws Exception {
    final TypeSerializer<IT2> solutionSetSerializer;
    final TypeComparator<IT2> solutionSetComparator;
    // grab a handle to the hash table from the iteration broker
    if (taskContext instanceof AbstractIterativeTask) {
        AbstractIterativeTask<?, ?> iterativeTaskContext = (AbstractIterativeTask<?, ?>) taskContext;
        String identifier = iterativeTaskContext.brokerKey();
        Object table = SolutionSetBroker.instance().get(identifier);
        if (table instanceof CompactingHashTable) {
            this.hashTable = (CompactingHashTable<IT2>) table;
            solutionSetSerializer = this.hashTable.getBuildSideSerializer();
            solutionSetComparator = this.hashTable.getBuildSideComparator().duplicate();
        } else if (table instanceof JoinHashMap) {
            this.objectMap = (JoinHashMap<IT2>) table;
            solutionSetSerializer = this.objectMap.getBuildSerializer();
            solutionSetComparator = this.objectMap.getBuildComparator().duplicate();
        } else {
            throw new RuntimeException("Unrecognized solution set index: " + table);
        }
    } else {
        throw new Exception("The task context of this driver is no iterative task context.");
    }
    TaskConfig config = taskContext.getTaskConfig();
    ClassLoader classLoader = taskContext.getUserCodeClassLoader();
    TypeSerializer<IT1> probeSideSerializer = taskContext.<IT1>getInputSerializer(0).getSerializer();
    TypeComparatorFactory<IT1> probeSideComparatorFactory = config.getDriverComparator(0, classLoader);
    this.probeSideComparator = probeSideComparatorFactory.createComparator();
    ExecutionConfig executionConfig = taskContext.getExecutionConfig();
    objectReuseEnabled = executionConfig.isObjectReuseEnabled();
    if (objectReuseEnabled) {
        solutionSideRecord = solutionSetSerializer.createInstance();
        probeSideRecord = probeSideSerializer.createInstance();
    }
    TypePairComparatorFactory<IT1, IT2> factory = taskContext.getTaskConfig().getPairComparatorFactory(taskContext.getUserCodeClassLoader());
    pairComparator = factory.createComparator12(this.probeSideComparator, solutionSetComparator);
}

Example 99 with ExecutionConfig

use of org.apache.flink.api.common.ExecutionConfig in project flink by apache.

the class MapDriver method setup.

@Override
public void setup(TaskContext<MapFunction<IT, OT>, OT> context) {
    this.taskContext = context;
    this.running = true;
    ExecutionConfig executionConfig = taskContext.getExecutionConfig();
    this.objectReuseEnabled = executionConfig.isObjectReuseEnabled();
}

Example 100 with ExecutionConfig

use of org.apache.flink.api.common.ExecutionConfig in project flink by apache.

the class MapPartitionDriver method prepare.

@Override
public void prepare() {
    ExecutionConfig executionConfig = taskContext.getExecutionConfig();
    this.objectReuseEnabled = executionConfig.isObjectReuseEnabled();
    if (LOG.isDebugEnabled()) {
        LOG.debug("MapPartitionDriver object reuse: " + (this.objectReuseEnabled ? "ENABLED" : "DISABLED") + ".");
    }
}