Uses of Interface
org.apache.hadoop.fs.statistics.DurationTrackerFactory

Packages that use DurationTrackerFactory

Package	Description
org.apache.hadoop.fs.impl.prefetch	block caching for use in object store clients.
org.apache.hadoop.fs.statistics	This package contains support for statistic collection and reporting.
org.apache.hadoop.fs.statistics.impl	Implementation support for statistics.
org.apache.hadoop.util	Common utilities.

Uses of DurationTrackerFactory in org.apache.hadoop.fs.impl.prefetch

Methods in org.apache.hadoop.fs.impl.prefetch that return DurationTrackerFactory

Modifier and Type	Method	Description
DurationTrackerFactory	BlockManagerParameters.getTrackerFactory()

Methods in org.apache.hadoop.fs.impl.prefetch with parameters of type DurationTrackerFactory

Modifier and Type	Method	Description
protected BlockCache	CachingBlockManager.createCache(int maxBlocksCount, DurationTrackerFactory trackerFactory)
BlockManagerParameters	BlockManagerParameters.withTrackerFactory(DurationTrackerFactory factory)	Sets the duration tracker with statistics to update.

Constructors in org.apache.hadoop.fs.impl.prefetch with parameters of type DurationTrackerFactory

Modifier	Constructor	Description
	SingleFilePerBlockCache(PrefetchingStatistics prefetchingStatistics, int maxBlocksCount, DurationTrackerFactory trackerFactory)	Constructs an instance of a SingleFilePerBlockCache.

Uses of DurationTrackerFactory in org.apache.hadoop.fs.statistics

Methods in org.apache.hadoop.fs.statistics that return DurationTrackerFactory

Modifier and Type	Method	Description
static DurationTrackerFactory	IOStatisticsSupport.stubDurationTrackerFactory()	Return a stub duration tracker factory whose returned trackers are always no-ops.

Uses of DurationTrackerFactory in org.apache.hadoop.fs.statistics.impl

Subinterfaces of DurationTrackerFactory in org.apache.hadoop.fs.statistics.impl

Modifier and Type	Interface	Description
interface	IOStatisticsStore	Interface of an IOStatistics store intended for use in classes which track statistics for reporting.

Classes in org.apache.hadoop.fs.statistics.impl that implement DurationTrackerFactory

Modifier and Type	Class	Description
class	ForwardingIOStatisticsStore	This may seem odd having an IOStatisticsStore which does nothing but forward to a wrapped store, but it's designed to assist in subclassing of selective methods, such as those to increment counters, get durations etc.
final class	StubDurationTrackerFactory	This is a stub factory which always returns no-op duration trackers.

Methods in org.apache.hadoop.fs.statistics.impl that return DurationTrackerFactory

Modifier and Type	Method	Description
static DurationTrackerFactory	IOStatisticsBinding.pairedTrackerFactory(DurationTrackerFactory first, DurationTrackerFactory second)	Create a DurationTrackerFactory which aggregates the tracking of two other factories.

Methods in org.apache.hadoop.fs.statistics.impl with parameters of type DurationTrackerFactory

Modifier and Type	Method	Description
static DurationTracker	IOStatisticsBinding.createTracker(DurationTrackerFactory factory, String statistic)	Create the tracker.
static Duration	IOStatisticsBinding.measureDurationOfInvocation(DurationTrackerFactory factory, String statistic, InvocationRaisingIOE input)	Given an IOException raising callable/lambda expression, execute it and update the relevant statistic, returning the measured duration.
static DurationTrackerFactory	IOStatisticsBinding.pairedTrackerFactory(DurationTrackerFactory first, DurationTrackerFactory second)	Create a DurationTrackerFactory which aggregates the tracking of two other factories.
static <B> B	IOStatisticsBinding.trackDuration(DurationTrackerFactory factory, String statistic, CallableRaisingIOE<B> input)	Given an IOException raising callable/lambda expression, execute it and update the relevant statistic.
static <B> ConsumerRaisingIOE<B>	IOStatisticsBinding.trackDurationConsumer(DurationTrackerFactory factory, String statistic, ConsumerRaisingIOE<B> input)	Given an IOException raising Consumer, return a new one which wraps the inner and tracks the duration of the operation, including whether it passes/fails.
static <B> Callable<B>	IOStatisticsBinding.trackDurationOfCallable(DurationTrackerFactory factory, String statistic, Callable<B> input)	Given a callable/lambda expression, return a new one which wraps the inner and tracks the duration of the operation, including whether it passes/fails.
static void	IOStatisticsBinding.trackDurationOfInvocation(DurationTrackerFactory factory, String statistic, InvocationRaisingIOE input)	Given an IOException raising callable/lambda expression, execute it and update the relevant statistic.
static <B> CallableRaisingIOE<B>	IOStatisticsBinding.trackDurationOfOperation(DurationTrackerFactory factory, String statistic, CallableRaisingIOE<B> input)	Given an IOException raising callable/lambda expression, return a new one which wraps the inner and tracks the duration of the operation, including whether it passes/fails.
static <B> B	IOStatisticsBinding.trackDurationOfSupplier(DurationTrackerFactory factory, String statistic, Supplier<B> input)	Given a Java supplier, evaluate it while tracking the duration of the operation and success/failure.
static <A, B> FunctionRaisingIOE<A,B>	IOStatisticsBinding.trackFunctionDuration(DurationTrackerFactory factory, String statistic, FunctionRaisingIOE<A,B> inputFn)	Given an IOException raising function/lambda expression, return a new one which wraps the inner and tracks the duration of the operation, including whether it passes/fails.
static <A, B> Function<A,B>	IOStatisticsBinding.trackJavaFunctionDuration(DurationTrackerFactory factory, String statistic, Function<A,B> inputFn)	Given a java function/lambda expression, return a new one which wraps the inner and tracks the duration of the operation, including whether it passes/fails.

Uses of DurationTrackerFactory in org.apache.hadoop.util

Constructors in org.apache.hadoop.util with parameters of type DurationTrackerFactory

Modifier	Constructor	Description
	SemaphoredDelegatingExecutor(ExecutorService executorDelegatee, int permitCount, boolean fair, DurationTrackerFactory trackerFactory)	Instantiate.