org.apache.hadoop.hbase.ipc

Class BalancedQueueRpcExecutor

java.lang.Object

org.apache.hadoop.hbase.ipc.RpcExecutor

org.apache.hadoop.hbase.ipc.BalancedQueueRpcExecutor

@InterfaceAudience.LimitedPrivate(value={"Coprocesssor","Phoenix"})
@InterfaceStability.Evolving
public class BalancedQueueRpcExecutor
extends RpcExecutor

An RpcExecutor that will balance requests evenly across all its queues, but still remains efficient with a single queue via an inlinable queue balancing mechanism.

Field Summary

Fields

Modifier and Type	Field and Description
protected List<BlockingQueue<CallRunner>>	queues

Constructor Summary

Constructors

Constructor and Description
BalancedQueueRpcExecutor(String name, int handlerCount, int numQueues, Class<? extends BlockingQueue> queueClass, Object... initargs)
BalancedQueueRpcExecutor(String name, int handlerCount, int numQueues, int maxQueueLength)

Method Summary

Methods

Modifier and Type	Method and Description
void	dispatch(CallRunner callTask) Add the request to the executor queue
static org.apache.hadoop.hbase.ipc.BalancedQueueRpcExecutor.QueueBalancer	getBalancer(int queueSize)
int	getQueueLength() Returns the length of the pending queue
List<BlockingQueue<CallRunner>>	getQueues() Returns the list of request queues
protected void	initializeQueues(int numQueues, Class<? extends BlockingQueue> queueClass, Object... initargs)

Methods inherited from class org.apache.hadoop.hbase.ipc.RpcExecutor

consumerLoop, getActiveHandlerCount, start, startHandlers, startHandlers, stop

Methods inherited from class java.lang.Object

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

Field Detail

queues

protected final List<BlockingQueue<CallRunner>> queues

Constructor Detail

BalancedQueueRpcExecutor

public BalancedQueueRpcExecutor(String name,
                        int handlerCount,
                        int numQueues,
                        int maxQueueLength)

BalancedQueueRpcExecutor

public BalancedQueueRpcExecutor(String name,
                        int handlerCount,
                        int numQueues,
                        Class<? extends BlockingQueue> queueClass,
                        Object... initargs)

Method Detail

initializeQueues

protected void initializeQueues(int numQueues,
                    Class<? extends BlockingQueue> queueClass,
                    Object... initargs)

dispatch

public void dispatch(CallRunner callTask)
              throws InterruptedException

Description copied from class: RpcExecutor

Add the request to the executor queue

Specified by:

dispatch in class RpcExecutor

Throws:

InterruptedException

getQueueLength

public int getQueueLength()

Description copied from class: RpcExecutor

Returns the length of the pending queue

Specified by:

getQueueLength in class RpcExecutor

getQueues

public List<BlockingQueue<CallRunner>> getQueues()

Description copied from class: RpcExecutor

Returns the list of request queues

Specified by:

getQueues in class RpcExecutor

getBalancer

public static org.apache.hadoop.hbase.ipc.BalancedQueueRpcExecutor.QueueBalancer getBalancer(int queueSize)