org.apache.hadoop.io.retry

类 RetryPolicies.MultipleLinearRandomRetry

java.lang.Object

org.apache.hadoop.io.retry.RetryPolicies.MultipleLinearRandomRetry

所有已实现的接口:

RetryPolicy

封闭类:

RetryPolicies

public static class RetryPolicies.MultipleLinearRandomRetry
extends Object
implements RetryPolicy

Given pairs of number of retries and sleep time (n0, t0), (n1, t1), ..., the first n0 retries sleep t0 milliseconds on average, the following n1 retries sleep t1 milliseconds on average, and so on. For all the sleep, the actual sleep time is randomly uniform distributed in the close interval [0.5t, 1.5t], where t is the sleep time specified. The objects of this class are immutable.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	RetryPolicies.MultipleLinearRandomRetry.Pair Pairs of numRetries and sleepSeconds

构造器概要

构造器

构造器和说明
RetryPolicies.MultipleLinearRandomRetry(List<RetryPolicies.MultipleLinearRandomRetry.Pair> pairs)

方法概要

方法

限定符和类型	方法和说明
boolean	equals(Object that)
int	hashCode()
static RetryPolicies.MultipleLinearRandomRetry	parseCommaSeparatedString(String s) Parse the given string as a MultipleLinearRandomRetry object.
boolean	shouldRetry(Exception e, int curRetry) Determines whether the framework should retry a method for the given exception, and the number of retries that have been made for that operation so far.
String	toString()

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

构造器详细资料

RetryPolicies.MultipleLinearRandomRetry

public RetryPolicies.MultipleLinearRandomRetry(List<RetryPolicies.MultipleLinearRandomRetry.Pair> pairs)

方法详细资料

shouldRetry

public boolean shouldRetry(Exception e,
                  int curRetry)
                    throws Exception

从接口复制的说明: RetryPolicy

Determines whether the framework should retry a method for the given exception, and the number of retries that have been made for that operation so far.

指定者:

shouldRetry 在接口中 RetryPolicy

参数:

e - The exception that caused the method to fail.

curRetry - The number of times the method has been retried.

返回:

true if the method should be retried, false if the method should not be retried but shouldn't fail with an exception (only for void methods).

抛出:

Exception - The re-thrown exception e indicating that the method failed and should not be retried further.

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

equals

public boolean equals(Object that)

覆盖:

equals 在类中 Object

toString

public String toString()

覆盖:

toString 在类中 Object

parseCommaSeparatedString

public static RetryPolicies.MultipleLinearRandomRetry parseCommaSeparatedString(String s)

Parse the given string as a MultipleLinearRandomRetry object. The format of the string is "t_1, n_1, t_2, n_2, ...", where t_i and n_i are the i-th pair of sleep time and number of retires. Note that the white spaces in the string are ignored.

返回:

the parsed object, or null if the parsing fails.