org.apache.flink.runtime.operators.util.metrics.CountingMutableObjectIterator Java Examples
The following examples show how to use
org.apache.flink.runtime.operators.util.metrics.CountingMutableObjectIterator.
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Example #1
| Source File: GroupReduceDriver.java From Flink-CEPplus with Apache License 2.0 | 6 votes |
|
@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 #2
| Source File: GroupReduceDriver.java From flink with Apache License 2.0 | 6 votes |
|
@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 #3
| Source File: GroupReduceDriver.java From flink with Apache License 2.0 | 6 votes |
|
@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 #4
| Source File: CoGroupDriver.java From Flink-CEPplus with Apache License 2.0 | 4 votes |
|
@Override
public void prepare() throws Exception
{
final TaskConfig config = this.taskContext.getTaskConfig();
if (config.getDriverStrategy() != DriverStrategy.CO_GROUP) {
throw new Exception("Unrecognized driver strategy for CoGoup driver: " + config.getDriverStrategy().name());
}
final Counter numRecordsIn = this.taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
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> groupComparator1 = this.taskContext.getDriverComparator(0);
final TypeComparator<IT2> groupComparator2 = 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 CoGroup driver");
}
ExecutionConfig executionConfig = taskContext.getExecutionConfig();
this.objectReuseEnabled = executionConfig.isObjectReuseEnabled();
if (LOG.isDebugEnabled()) {
LOG.debug("CoGroupDriver object reuse: " + (this.objectReuseEnabled ? "ENABLED" : "DISABLED") + ".");
}
if (objectReuseEnabled) {
// create CoGroupTaskIterator according to provided local strategy.
this.coGroupIterator = new ReusingSortMergeCoGroupIterator<IT1, IT2>(
in1, in2,
serializer1, groupComparator1,
serializer2, groupComparator2,
pairComparatorFactory.createComparator12(groupComparator1, groupComparator2));
} else {
// create CoGroupTaskIterator according to provided local strategy.
this.coGroupIterator = new NonReusingSortMergeCoGroupIterator<IT1, IT2>(
in1, in2,
serializer1, groupComparator1,
serializer2, groupComparator2,
pairComparatorFactory.createComparator12(groupComparator1, groupComparator2));
}
// open CoGroupTaskIterator - this triggers the sorting and blocks until the iterator is ready
this.coGroupIterator.open();
if (LOG.isDebugEnabled()) {
LOG.debug(this.taskContext.formatLogString("CoGroup task iterator ready."));
}
}
Example #5
| Source File: AbstractCachedBuildSideJoinDriver.java From Flink-CEPplus with Apache License 2.0 | 4 votes |
|
@Override
public void initialize() throws Exception {
TaskConfig config = this.taskContext.getTaskConfig();
final Counter numRecordsIn = taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
TypeSerializer<IT1> serializer1 = this.taskContext.<IT1>getInputSerializer(0).getSerializer();
TypeSerializer<IT2> serializer2 = this.taskContext.<IT2>getInputSerializer(1).getSerializer();
TypeComparator<IT1> comparator1 = this.taskContext.getDriverComparator(0);
TypeComparator<IT2> comparator2 = this.taskContext.getDriverComparator(1);
MutableObjectIterator<IT1> input1 = new CountingMutableObjectIterator<>(this.taskContext.<IT1>getInput(0), numRecordsIn);
MutableObjectIterator<IT2> input2 = new CountingMutableObjectIterator<>(this.taskContext.<IT2>getInput(1), numRecordsIn);
TypePairComparatorFactory<IT1, IT2> pairComparatorFactory =
this.taskContext.getTaskConfig().getPairComparatorFactory(this.taskContext.getUserCodeClassLoader());
double availableMemory = config.getRelativeMemoryDriver();
boolean hashJoinUseBitMaps = taskContext.getTaskManagerInfo().getConfiguration()
.getBoolean(AlgorithmOptions.HASH_JOIN_BLOOM_FILTERS);
ExecutionConfig executionConfig = taskContext.getExecutionConfig();
objectReuseEnabled = executionConfig.isObjectReuseEnabled();
if (objectReuseEnabled) {
if (buildSideIndex == 0 && probeSideIndex == 1) {
matchIterator = new ReusingBuildFirstReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator21(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else if (buildSideIndex == 1 && probeSideIndex == 0) {
matchIterator = new ReusingBuildSecondReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator12(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else {
throw new Exception("Error: Inconsistent setup for repeatable hash join driver.");
}
} else {
if (buildSideIndex == 0 && probeSideIndex == 1) {
matchIterator = new NonReusingBuildFirstReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator21(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else if (buildSideIndex == 1 && probeSideIndex == 0) {
matchIterator = new NonReusingBuildSecondReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator12(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else {
throw new Exception("Error: Inconsistent setup for repeatable hash join driver.");
}
}
this.matchIterator.open();
}
Example #6
| Source File: AbstractOuterJoinDriver.java From Flink-CEPplus with Apache License 2.0 | 4 votes |
|
@Override
public void prepare() throws Exception {
final TaskConfig config = this.taskContext.getTaskConfig();
// 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 driverMemFraction = config.getRelativeMemoryDriver();
final DriverStrategy ls = config.getDriverStrategy();
final Counter numRecordsIn = this.taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
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 serializers and comparators
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 outer join driver");
}
ExecutionConfig executionConfig = taskContext.getExecutionConfig();
boolean objectReuseEnabled = executionConfig.isObjectReuseEnabled();
if (LOG.isDebugEnabled()) {
LOG.debug("Outer Join Driver object reuse: " + (objectReuseEnabled ? "ENABLED" : "DISABLED") + ".");
}
// create and return outer join iterator according to provided local strategy.
if (objectReuseEnabled) {
this.outerJoinIterator = getReusingOuterJoinIterator(
ls,
in1,
in2,
serializer1,
comparator1,
serializer2,
comparator2,
pairComparatorFactory,
memoryManager,
ioManager,
driverMemFraction
);
} else {
this.outerJoinIterator = getNonReusingOuterJoinIterator(
ls,
in1,
in2,
serializer1,
comparator1,
serializer2,
comparator2,
pairComparatorFactory,
memoryManager,
ioManager,
driverMemFraction
);
}
this.outerJoinIterator.open();
if (LOG.isDebugEnabled()) {
LOG.debug(this.taskContext.formatLogString("outer join task iterator ready."));
}
}
Example #7
| Source File: CoGroupDriver.java From flink with Apache License 2.0 | 4 votes |
|
@Override
public void prepare() throws Exception
{
final TaskConfig config = this.taskContext.getTaskConfig();
if (config.getDriverStrategy() != DriverStrategy.CO_GROUP) {
throw new Exception("Unrecognized driver strategy for CoGoup driver: " + config.getDriverStrategy().name());
}
final Counter numRecordsIn = this.taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
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> groupComparator1 = this.taskContext.getDriverComparator(0);
final TypeComparator<IT2> groupComparator2 = 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 CoGroup driver");
}
ExecutionConfig executionConfig = taskContext.getExecutionConfig();
this.objectReuseEnabled = executionConfig.isObjectReuseEnabled();
if (LOG.isDebugEnabled()) {
LOG.debug("CoGroupDriver object reuse: " + (this.objectReuseEnabled ? "ENABLED" : "DISABLED") + ".");
}
if (objectReuseEnabled) {
// create CoGroupTaskIterator according to provided local strategy.
this.coGroupIterator = new ReusingSortMergeCoGroupIterator<IT1, IT2>(
in1, in2,
serializer1, groupComparator1,
serializer2, groupComparator2,
pairComparatorFactory.createComparator12(groupComparator1, groupComparator2));
} else {
// create CoGroupTaskIterator according to provided local strategy.
this.coGroupIterator = new NonReusingSortMergeCoGroupIterator<IT1, IT2>(
in1, in2,
serializer1, groupComparator1,
serializer2, groupComparator2,
pairComparatorFactory.createComparator12(groupComparator1, groupComparator2));
}
// open CoGroupTaskIterator - this triggers the sorting and blocks until the iterator is ready
this.coGroupIterator.open();
if (LOG.isDebugEnabled()) {
LOG.debug(this.taskContext.formatLogString("CoGroup task iterator ready."));
}
}
Example #8
| Source File: AbstractCachedBuildSideJoinDriver.java From flink with Apache License 2.0 | 4 votes |
|
@Override
public void initialize() throws Exception {
TaskConfig config = this.taskContext.getTaskConfig();
final Counter numRecordsIn = taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
TypeSerializer<IT1> serializer1 = this.taskContext.<IT1>getInputSerializer(0).getSerializer();
TypeSerializer<IT2> serializer2 = this.taskContext.<IT2>getInputSerializer(1).getSerializer();
TypeComparator<IT1> comparator1 = this.taskContext.getDriverComparator(0);
TypeComparator<IT2> comparator2 = this.taskContext.getDriverComparator(1);
MutableObjectIterator<IT1> input1 = new CountingMutableObjectIterator<>(this.taskContext.<IT1>getInput(0), numRecordsIn);
MutableObjectIterator<IT2> input2 = new CountingMutableObjectIterator<>(this.taskContext.<IT2>getInput(1), numRecordsIn);
TypePairComparatorFactory<IT1, IT2> pairComparatorFactory =
this.taskContext.getTaskConfig().getPairComparatorFactory(this.taskContext.getUserCodeClassLoader());
double availableMemory = config.getRelativeMemoryDriver();
boolean hashJoinUseBitMaps = taskContext.getTaskManagerInfo().getConfiguration()
.getBoolean(AlgorithmOptions.HASH_JOIN_BLOOM_FILTERS);
ExecutionConfig executionConfig = taskContext.getExecutionConfig();
objectReuseEnabled = executionConfig.isObjectReuseEnabled();
if (objectReuseEnabled) {
if (buildSideIndex == 0 && probeSideIndex == 1) {
matchIterator = new ReusingBuildFirstReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator21(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else if (buildSideIndex == 1 && probeSideIndex == 0) {
matchIterator = new ReusingBuildSecondReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator12(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else {
throw new Exception("Error: Inconsistent setup for repeatable hash join driver.");
}
} else {
if (buildSideIndex == 0 && probeSideIndex == 1) {
matchIterator = new NonReusingBuildFirstReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator21(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else if (buildSideIndex == 1 && probeSideIndex == 0) {
matchIterator = new NonReusingBuildSecondReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator12(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else {
throw new Exception("Error: Inconsistent setup for repeatable hash join driver.");
}
}
this.matchIterator.open();
}
Example #9
| Source File: AbstractOuterJoinDriver.java From flink with Apache License 2.0 | 4 votes |
|
@Override
public void prepare() throws Exception {
final TaskConfig config = this.taskContext.getTaskConfig();
// 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 driverMemFraction = config.getRelativeMemoryDriver();
final DriverStrategy ls = config.getDriverStrategy();
final Counter numRecordsIn = this.taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
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 serializers and comparators
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 outer join driver");
}
ExecutionConfig executionConfig = taskContext.getExecutionConfig();
boolean objectReuseEnabled = executionConfig.isObjectReuseEnabled();
if (LOG.isDebugEnabled()) {
LOG.debug("Outer Join Driver object reuse: " + (objectReuseEnabled ? "ENABLED" : "DISABLED") + ".");
}
// create and return outer join iterator according to provided local strategy.
if (objectReuseEnabled) {
this.outerJoinIterator = getReusingOuterJoinIterator(
ls,
in1,
in2,
serializer1,
comparator1,
serializer2,
comparator2,
pairComparatorFactory,
memoryManager,
ioManager,
driverMemFraction
);
} else {
this.outerJoinIterator = getNonReusingOuterJoinIterator(
ls,
in1,
in2,
serializer1,
comparator1,
serializer2,
comparator2,
pairComparatorFactory,
memoryManager,
ioManager,
driverMemFraction
);
}
this.outerJoinIterator.open();
if (LOG.isDebugEnabled()) {
LOG.debug(this.taskContext.formatLogString("outer join task iterator ready."));
}
}
Example #10
| Source File: CoGroupDriver.java From flink with Apache License 2.0 | 4 votes |
|
@Override
public void prepare() throws Exception
{
final TaskConfig config = this.taskContext.getTaskConfig();
if (config.getDriverStrategy() != DriverStrategy.CO_GROUP) {
throw new Exception("Unrecognized driver strategy for CoGoup driver: " + config.getDriverStrategy().name());
}
final Counter numRecordsIn = this.taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
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> groupComparator1 = this.taskContext.getDriverComparator(0);
final TypeComparator<IT2> groupComparator2 = 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 CoGroup driver");
}
ExecutionConfig executionConfig = taskContext.getExecutionConfig();
this.objectReuseEnabled = executionConfig.isObjectReuseEnabled();
if (LOG.isDebugEnabled()) {
LOG.debug("CoGroupDriver object reuse: " + (this.objectReuseEnabled ? "ENABLED" : "DISABLED") + ".");
}
if (objectReuseEnabled) {
// create CoGroupTaskIterator according to provided local strategy.
this.coGroupIterator = new ReusingSortMergeCoGroupIterator<IT1, IT2>(
in1, in2,
serializer1, groupComparator1,
serializer2, groupComparator2,
pairComparatorFactory.createComparator12(groupComparator1, groupComparator2));
} else {
// create CoGroupTaskIterator according to provided local strategy.
this.coGroupIterator = new NonReusingSortMergeCoGroupIterator<IT1, IT2>(
in1, in2,
serializer1, groupComparator1,
serializer2, groupComparator2,
pairComparatorFactory.createComparator12(groupComparator1, groupComparator2));
}
// open CoGroupTaskIterator - this triggers the sorting and blocks until the iterator is ready
this.coGroupIterator.open();
if (LOG.isDebugEnabled()) {
LOG.debug(this.taskContext.formatLogString("CoGroup task iterator ready."));
}
}
Example #11
| Source File: AbstractCachedBuildSideJoinDriver.java From flink with Apache License 2.0 | 4 votes |
|
@Override
public void initialize() throws Exception {
TaskConfig config = this.taskContext.getTaskConfig();
final Counter numRecordsIn = taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
TypeSerializer<IT1> serializer1 = this.taskContext.<IT1>getInputSerializer(0).getSerializer();
TypeSerializer<IT2> serializer2 = this.taskContext.<IT2>getInputSerializer(1).getSerializer();
TypeComparator<IT1> comparator1 = this.taskContext.getDriverComparator(0);
TypeComparator<IT2> comparator2 = this.taskContext.getDriverComparator(1);
MutableObjectIterator<IT1> input1 = new CountingMutableObjectIterator<>(this.taskContext.<IT1>getInput(0), numRecordsIn);
MutableObjectIterator<IT2> input2 = new CountingMutableObjectIterator<>(this.taskContext.<IT2>getInput(1), numRecordsIn);
TypePairComparatorFactory<IT1, IT2> pairComparatorFactory =
this.taskContext.getTaskConfig().getPairComparatorFactory(this.taskContext.getUserCodeClassLoader());
double availableMemory = config.getRelativeMemoryDriver();
boolean hashJoinUseBitMaps = taskContext.getTaskManagerInfo().getConfiguration()
.getBoolean(AlgorithmOptions.HASH_JOIN_BLOOM_FILTERS);
ExecutionConfig executionConfig = taskContext.getExecutionConfig();
objectReuseEnabled = executionConfig.isObjectReuseEnabled();
if (objectReuseEnabled) {
if (buildSideIndex == 0 && probeSideIndex == 1) {
matchIterator = new ReusingBuildFirstReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator21(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else if (buildSideIndex == 1 && probeSideIndex == 0) {
matchIterator = new ReusingBuildSecondReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator12(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else {
throw new Exception("Error: Inconsistent setup for repeatable hash join driver.");
}
} else {
if (buildSideIndex == 0 && probeSideIndex == 1) {
matchIterator = new NonReusingBuildFirstReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator21(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else if (buildSideIndex == 1 && probeSideIndex == 0) {
matchIterator = new NonReusingBuildSecondReOpenableHashJoinIterator<IT1, IT2, OT>(
input1, input2,
serializer1, comparator1,
serializer2, comparator2,
pairComparatorFactory.createComparator12(comparator1, comparator2),
this.taskContext.getMemoryManager(),
this.taskContext.getIOManager(),
this.taskContext.getContainingTask(),
availableMemory,
false,
false,
hashJoinUseBitMaps);
} else {
throw new Exception("Error: Inconsistent setup for repeatable hash join driver.");
}
}
this.matchIterator.open();
}
Example #12
| Source File: AbstractOuterJoinDriver.java From flink with Apache License 2.0 | 4 votes |
|
@Override
public void prepare() throws Exception {
final TaskConfig config = this.taskContext.getTaskConfig();
// 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 driverMemFraction = config.getRelativeMemoryDriver();
final DriverStrategy ls = config.getDriverStrategy();
final Counter numRecordsIn = this.taskContext.getMetricGroup().getIOMetricGroup().getNumRecordsInCounter();
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 serializers and comparators
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 outer join driver");
}
ExecutionConfig executionConfig = taskContext.getExecutionConfig();
boolean objectReuseEnabled = executionConfig.isObjectReuseEnabled();
if (LOG.isDebugEnabled()) {
LOG.debug("Outer Join Driver object reuse: " + (objectReuseEnabled ? "ENABLED" : "DISABLED") + ".");
}
// create and return outer join iterator according to provided local strategy.
if (objectReuseEnabled) {
this.outerJoinIterator = getReusingOuterJoinIterator(
ls,
in1,
in2,
serializer1,
comparator1,
serializer2,
comparator2,
pairComparatorFactory,
memoryManager,
ioManager,
driverMemFraction
);
} else {
this.outerJoinIterator = getNonReusingOuterJoinIterator(
ls,
in1,
in2,
serializer1,
comparator1,
serializer2,
comparator2,
pairComparatorFactory,
memoryManager,
ioManager,
driverMemFraction
);
}
this.outerJoinIterator.open();
if (LOG.isDebugEnabled()) {
LOG.debug(this.taskContext.formatLogString("outer join task iterator ready."));
}
}
