org.apache.hadoop.hbase.client

Class RpcRetryingCaller<T>

java.lang.Object

org.apache.hadoop.hbase.client.RpcRetryingCaller<T>

Direct Known Subclasses:

StatsTrackingRpcRetryingCaller

@InterfaceAudience.Private
public class RpcRetryingCaller<T>
extends Object

Dynamic rather than static so can set the generic return type appropriately.

Constructor Summary

Constructors

Constructor and Description
RpcRetryingCaller(long pause, int retries, int startLogErrorsCnt)

Method Summary

Methods

Modifier and Type	Method and Description
T	callWithoutRetries(RetryingCallable<T> callable, int callTimeout) Call the server once only.
T	callWithRetries(RetryingCallable<T> callable)
T	callWithRetries(RetryingCallable<T> callable, int callTimeout) Retries if invocation fails.

Methods inherited from class java.lang.Object

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

Constructor Detail

RpcRetryingCaller

public RpcRetryingCaller(long pause,
                 int retries,
                 int startLogErrorsCnt)

Method Detail

callWithRetries

public T callWithRetries(RetryingCallable<T> callable)
                  throws IOException,
                         RuntimeException

Throws:

IOException

RuntimeException

callWithRetries

public T callWithRetries(RetryingCallable<T> callable,
                int callTimeout)
                  throws IOException,
                         RuntimeException

Retries if invocation fails.

Parameters:

callTimeout - Timeout for this call

callable - The RetryingCallable to run.

Returns:

an object of type T

Throws:

IOException - if a remote or network exception occurs

RuntimeException - other unspecified error

callWithoutRetries

public T callWithoutRetries(RetryingCallable<T> callable,
                   int callTimeout)
                     throws IOException,
                            RuntimeException

Call the server once only. RetryingCallable has a strange shape so we can do retrys. Use this invocation if you want to do a single call only (A call to Callable.call() will not likely succeed).

Returns:

an object of type T

Throws:

IOException - if a remote or network exception occurs

RuntimeException - other unspecified error