Package org.apache.pulsar.io.elasticsearch

Class RandomExponentialRetry

java.lang.Object

org.apache.pulsar.io.elasticsearch.RandomExponentialRetry

public class RandomExponentialRetry
extends Object

Implements the jitter backoff retry. see https://aws.amazon.com/blogs/architecture/exponential-backoff-and-jitter/

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RandomExponentialRetry.Time

Field Summary

Fields

Modifier and Type	Field	Description
static final RandomExponentialRetry	INSTANCE	Singleton instance.
final long	maxRetryTimeInSec	Maximum time in seconds between two retries.

Constructor Summary

Constructors

Constructor	Description
RandomExponentialRetry()
RandomExponentialRetry(long maxRetryTimeInSec)

Method Summary

Modifier and Type	Method	Description
long	randomWaitInMs(int attempt, long backoffInMs)
<T> T	retry(Callable<T> function, int maxAttempts, long initialBackoff, String source)
protected <T> T	retry(Callable<T> function, int maxAttempts, long initialBackoff, String source, RandomExponentialRetry.Time clock)
long	waitInMs(int attempt, long backoffInMs)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

INSTANCE

public static final RandomExponentialRetry INSTANCE

Singleton instance.

maxRetryTimeInSec

public final long maxRetryTimeInSec

Maximum time in seconds between two retries.

Constructor Details

RandomExponentialRetry

public RandomExponentialRetry()

RandomExponentialRetry

public RandomExponentialRetry(long maxRetryTimeInSec)

Method Details

waitInMs

public long waitInMs(int attempt,
 long backoffInMs)

randomWaitInMs

public long randomWaitInMs(int attempt,
 long backoffInMs)

retry

public <T> T retry(Callable<T> function,
 int maxAttempts,
 long initialBackoff,
 String source)
            throws Exception

Throws:

Exception

retry

protected <T> T retry(Callable<T> function,
 int maxAttempts,
 long initialBackoff,
 String source,
 RandomExponentialRetry.Time clock)
               throws Exception

Throws:

Exception