Package alluxio.retry

Interface RetryPolicy

All Known Implementing Classes:

CountingRetry, ExponentialBackoffRetry, ExponentialTimeBoundedRetry, SleepingRetry, TimeBoundedRetry, TimeoutRetry

@NotThreadSafe
public interface RetryPolicy

Policy for determining whether retries should be performed, and potentially waiting for some time before the next retry attempt. The way that this interface works is that the logic for delayed retries (retries that sleep) can delay the caller of attempt().

Method Summary

Modifier and Type	Method	Description
boolean	attempt()	Waits until it is time to perform the next retry, then returns.
int	getAttemptCount()	How many retries have been performed.

Method Detail

getAttemptCount

int getAttemptCount()

How many retries have been performed. If no retries have been performed, 0 is returned.

Returns:

number of retries performed

attempt

boolean attempt()

Waits until it is time to perform the next retry, then returns. Returns false if no further retries should be performed. The first call to this method should never delay the caller, this allow users of the policy to use it in the context of a while-loop.

Returns:

whether another retry should be performed