org.apache.cassandra.thrift

Class CustomTHsHaServer

java.lang.Object

org.apache.thrift.server.TServer

org.apache.thrift.server.TNonblockingServer

org.apache.cassandra.thrift.CustomTHsHaServer

public class CustomTHsHaServer
extends org.apache.thrift.server.TNonblockingServer

This is a interim solution till THRIFT-1167 gets committed... The idea here is to avoid sticking to one CPU for IO's. For better throughput it is spread across multiple threads. Number of selector thread can be the number of CPU available.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CustomTHsHaServer.Factory
protected class	CustomTHsHaServer.Invocation Save the remote socket as a thead local for future use of client state.
protected class	CustomTHsHaServer.SelectorThread IO Threads will perform expensive IO operations...

Nested classes/interfaces inherited from class org.apache.thrift.server.TNonblockingServer

org.apache.thrift.server.TNonblockingServer.AbstractNonblockingServerArgs<T extends org.apache.thrift.server.TNonblockingServer.AbstractNonblockingServerArgs<T>>, org.apache.thrift.server.TNonblockingServer.Args, org.apache.thrift.server.TNonblockingServer.FrameBuffer, org.apache.thrift.server.TNonblockingServer.SelectThread

Nested classes/interfaces inherited from class org.apache.thrift.server.TServer

org.apache.thrift.server.TServer.AbstractServerArgs<T extends org.apache.thrift.server.TServer.AbstractServerArgs<T>>

Field Summary

Fields inherited from class org.apache.thrift.server.TServer

inputProtocolFactory_, inputTransportFactory_, outputProtocolFactory_, outputTransportFactory_, processorFactory_, serverTransport_

Constructor Summary

Constructors

Constructor and Description
CustomTHsHaServer(org.apache.thrift.server.TNonblockingServer.Args args, java.util.concurrent.ExecutorService invoker, int threadCount) All the arguments to Non Blocking Server will apply here.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	joinSelector() Block until the selector exits.
protected boolean	requestInvoke(org.apache.thrift.server.TNonblockingServer.FrameBuffer frameBuffer, CustomTHsHaServer.SelectorThread thread)
protected void	requestSelectInterestChange(org.apache.thrift.server.TNonblockingServer.FrameBuffer fb) A FrameBuffer wants to change its selection preferences, but might not be in the select thread.
void	serve() Begin accepting connections and processing invocations.
protected boolean	startThreads()
void	stop() Stop serving and shut everything down.

Methods inherited from class org.apache.thrift.server.TNonblockingServer

isStopped, requestInvoke, startListening, startSelectorThread, stopListening

Methods inherited from class org.apache.thrift.server.TServer

isServing, setServing

Methods inherited from class java.lang.Object

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

Constructor Detail

CustomTHsHaServer

public CustomTHsHaServer(org.apache.thrift.server.TNonblockingServer.Args args,
                 java.util.concurrent.ExecutorService invoker,
                 int threadCount)

All the arguments to Non Blocking Server will apply here. In addition, executor pool will be responsible for creating the internal threads which will process the data. threads for selection usually are equal to the number of cpu's

Method Detail

serve

public void serve()

Description copied from class: org.apache.thrift.server.TNonblockingServer

Begin accepting connections and processing invocations.

Overrides:

serve in class org.apache.thrift.server.TNonblockingServer

startThreads

protected boolean startThreads()

joinSelector

protected void joinSelector()

Description copied from class: org.apache.thrift.server.TNonblockingServer

Block until the selector exits.

Overrides:

joinSelector in class org.apache.thrift.server.TNonblockingServer

stop

public void stop()

Stop serving and shut everything down.

Overrides:

stop in class org.apache.thrift.server.TNonblockingServer

requestInvoke

protected boolean requestInvoke(org.apache.thrift.server.TNonblockingServer.FrameBuffer frameBuffer,
                    CustomTHsHaServer.SelectorThread thread)

requestSelectInterestChange

protected void requestSelectInterestChange(org.apache.thrift.server.TNonblockingServer.FrameBuffer fb)

Description copied from class: org.apache.thrift.server.TNonblockingServer

A FrameBuffer wants to change its selection preferences, but might not be in the select thread.

Overrides:

requestSelectInterestChange in class org.apache.thrift.server.TNonblockingServer