org.apache.hadoop.fs.azurebfs.services

Class ExponentialRetryPolicy

java.lang.Object

org.apache.hadoop.fs.azurebfs.services.ExponentialRetryPolicy

public class ExponentialRetryPolicy
extends Object

Retry policy used by AbfsClient.

Constructor Summary

Constructors

Constructor and Description
ExponentialRetryPolicy() Initializes a new instance of the ExponentialRetryPolicy class.
ExponentialRetryPolicy(int retryCount, int minBackoff, int maxBackoff, int deltaBackoff) Initializes a new instance of the ExponentialRetryPolicy class.

Method Summary

Modifier and Type	Method and Description
long	getRetryInterval(int retryCount) Returns backoff interval between 80% and 120% of the desired backoff, multiply by 2^n-1 for exponential.
boolean	shouldRetry(int retryCount, int statusCode) Returns if a request should be retried based on the retry count, current response, and the current strategy.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExponentialRetryPolicy

public ExponentialRetryPolicy()

Initializes a new instance of the ExponentialRetryPolicy class.

ExponentialRetryPolicy

public ExponentialRetryPolicy(int retryCount,
                              int minBackoff,
                              int maxBackoff,
                              int deltaBackoff)

Initializes a new instance of the ExponentialRetryPolicy class.

Parameters:

retryCount - The maximum number of retry attempts.

minBackoff - The minimum backoff time.

maxBackoff - The maximum backoff time.

deltaBackoff - The value that will be used to calculate a random delta in the exponential delay between retries.

Method Detail

shouldRetry

public boolean shouldRetry(int retryCount,
                           int statusCode)

Returns if a request should be retried based on the retry count, current response, and the current strategy.

Parameters:

retryCount - The current retry attempt count.

statusCode - The status code of the response, or -1 for socket error.

Returns:

true if the request should be retried; false otherwise.

getRetryInterval

public long getRetryInterval(int retryCount)

Returns backoff interval between 80% and 120% of the desired backoff, multiply by 2^n-1 for exponential.

Parameters:

retryCount - The current retry attempt count.

Returns:

backoff Interval time