Package org.apache.accumulo.server.compaction

Class RetryableThriftCall<T>

java.lang.Object

org.apache.accumulo.server.compaction.RetryableThriftCall<T>

public class RetryableThriftCall<T>
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RetryableThriftCall.RetriesExceededException

Field Summary

Fields

Modifier and Type	Field	Description
static long	MAX_WAIT_TIME

Constructor Summary

Constructors

Constructor	Description
RetryableThriftCall(long start, long maxWaitTime, int maxNumRetries, RetryableThriftFunction<T> function)	RetryableThriftCall constructor

Method Summary

Modifier and Type	Method	Description
T	run()	Attempts to call the function, waiting and retrying when TException is thrown.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_WAIT_TIME

public static final long MAX_WAIT_TIME

See Also:

Constant Field Values

Constructor Detail

RetryableThriftCall

public RetryableThriftCall(long start,
                           long maxWaitTime,
                           int maxNumRetries,
                           RetryableThriftFunction<T> function)

RetryableThriftCall constructor

Parameters:

start - initial wait time

maxWaitTime - max wait time

maxNumRetries - number of times to retry, 0 to retry forever

function - function to execute

Method Detail

run

public T run()
      throws RetryableThriftCall.RetriesExceededException

Attempts to call the function, waiting and retrying when TException is thrown. Wait time is initially set to the start time and doubled each time, up to the maximum wait time. If maxNumRetries is 0, then this will retry forever. If maxNumRetries is non-zero, then a RuntimeException is thrown when it has exceeded he maxNumRetries parameter.

Returns:

T

Throws:

RetryableThriftCall.RetriesExceededException - when maximum number of retries has been exceeded and the cause is set to the last TException