org.apache.cassandra.concurrent

Class JMXEnabledThreadPoolExecutor

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor

org.apache.cassandra.concurrent.JMXEnabledThreadPoolExecutor

All Implemented Interfaces:

java.util.concurrent.Executor, java.util.concurrent.ExecutorService, IExecutorMBean, JMXEnabledThreadPoolExecutorMBean, TracingAwareExecutorService

Direct Known Subclasses:

JMXConfigurableThreadPoolExecutor

public class JMXEnabledThreadPoolExecutor
extends DebuggableThreadPoolExecutor
implements JMXEnabledThreadPoolExecutorMBean

This is a wrapper class for the ScheduledThreadPoolExecutor. It provides an implementation for the afterExecute() found in the ThreadPoolExecutor class to log any unexpected Runtime Exceptions.

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.ThreadPoolExecutor

java.util.concurrent.ThreadPoolExecutor.AbortPolicy, java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy, java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy, java.util.concurrent.ThreadPoolExecutor.DiscardPolicy

Field Summary

Fields inherited from class org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor

blockingExecutionHandler, logger

Constructor Summary

Constructors

Constructor and Description
JMXEnabledThreadPoolExecutor(int corePoolSize, int maxPoolSize, long keepAliveTime, java.util.concurrent.TimeUnit unit, java.util.concurrent.BlockingQueue<java.lang.Runnable> workQueue, NamedThreadFactory threadFactory, java.lang.String jmxPath)
JMXEnabledThreadPoolExecutor(int corePoolSize, long keepAliveTime, java.util.concurrent.TimeUnit unit, java.util.concurrent.BlockingQueue<java.lang.Runnable> workQueue, NamedThreadFactory threadFactory, java.lang.String jmxPath)
JMXEnabledThreadPoolExecutor(Stage stage)
JMXEnabledThreadPoolExecutor(java.lang.String threadPoolName)
JMXEnabledThreadPoolExecutor(java.lang.String threadPoolName, int priority)
JMXEnabledThreadPoolExecutor(java.lang.String threadPoolName, java.lang.String jmxPath)

Method Summary

Methods

Modifier and Type	Method and Description
long	getCompletedTasks() Get the number of completed tasks
int	getCoreThreads() Returns core pool size of thread pool.
int	getCurrentlyBlockedTasks() Get the number of tasks currently blocked, waiting to be accepted by the executor (because all threads are busy and the backing queue is full).
int	getMaximumThreads() Returns maximum pool size of thread pool.
long	getPendingTasks() Get the number of tasks waiting to be executed
int	getTotalBlockedTasks() Get the number of tasks that had blocked before being accepted (or rejected).
protected void	onFinalAccept(java.lang.Runnable task)
protected void	onFinalRejection(java.lang.Runnable task)
protected void	onInitialRejection(java.lang.Runnable task)
void	setCoreThreads(int number) Allows user to resize core pool size of the thread pool.
void	setMaximumThreads(int number) Allows user to resize maximum size of the thread pool.
void	shutdown()
java.util.List<java.lang.Runnable>	shutdownNow()

Methods inherited from class org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor

afterExecute, beforeExecute, createWithFixedPoolSize, createWithMaximumPoolSize, execute, execute, extractThrowable, handleOrLog, logExceptionsAfterExecute, newTaskFor, newTaskFor

Methods inherited from class java.util.concurrent.ThreadPoolExecutor

allowCoreThreadTimeOut, allowsCoreThreadTimeOut, awaitTermination, finalize, getActiveCount, getCompletedTaskCount, getCorePoolSize, getKeepAliveTime, getLargestPoolSize, getMaximumPoolSize, getPoolSize, getQueue, getRejectedExecutionHandler, getTaskCount, getThreadFactory, isShutdown, isTerminated, isTerminating, prestartAllCoreThreads, prestartCoreThread, purge, remove, setCorePoolSize, setKeepAliveTime, setMaximumPoolSize, setRejectedExecutionHandler, setThreadFactory, terminated, toString

Methods inherited from class java.util.concurrent.AbstractExecutorService

invokeAll, invokeAll, invokeAny, invokeAny, submit, submit, submit

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cassandra.concurrent.IExecutorMBean

getActiveCount

Methods inherited from interface java.util.concurrent.ExecutorService

awaitTermination, invokeAll, invokeAll, invokeAny, invokeAny, isShutdown, isTerminated, submit, submit, submit

Constructor Detail

JMXEnabledThreadPoolExecutor

public JMXEnabledThreadPoolExecutor(java.lang.String threadPoolName)

JMXEnabledThreadPoolExecutor

public JMXEnabledThreadPoolExecutor(java.lang.String threadPoolName,
                            java.lang.String jmxPath)

JMXEnabledThreadPoolExecutor

public JMXEnabledThreadPoolExecutor(java.lang.String threadPoolName,
                            int priority)

JMXEnabledThreadPoolExecutor

public JMXEnabledThreadPoolExecutor(int corePoolSize,
                            long keepAliveTime,
                            java.util.concurrent.TimeUnit unit,
                            java.util.concurrent.BlockingQueue<java.lang.Runnable> workQueue,
                            NamedThreadFactory threadFactory,
                            java.lang.String jmxPath)

JMXEnabledThreadPoolExecutor

public JMXEnabledThreadPoolExecutor(int corePoolSize,
                            int maxPoolSize,
                            long keepAliveTime,
                            java.util.concurrent.TimeUnit unit,
                            java.util.concurrent.BlockingQueue<java.lang.Runnable> workQueue,
                            NamedThreadFactory threadFactory,
                            java.lang.String jmxPath)

JMXEnabledThreadPoolExecutor

public JMXEnabledThreadPoolExecutor(Stage stage)

Method Detail

shutdown

public void shutdown()

Specified by:

shutdown in interface java.util.concurrent.ExecutorService

Overrides:

shutdown in class java.util.concurrent.ThreadPoolExecutor

shutdownNow

public java.util.List<java.lang.Runnable> shutdownNow()

Specified by:

shutdownNow in interface java.util.concurrent.ExecutorService

Overrides:

shutdownNow in class java.util.concurrent.ThreadPoolExecutor

getCompletedTasks

public long getCompletedTasks()

Get the number of completed tasks

Specified by:

getCompletedTasks in interface IExecutorMBean

getPendingTasks

public long getPendingTasks()

Get the number of tasks waiting to be executed

Specified by:

getPendingTasks in interface IExecutorMBean

getTotalBlockedTasks

public int getTotalBlockedTasks()

Description copied from interface: JMXEnabledThreadPoolExecutorMBean

Get the number of tasks that had blocked before being accepted (or rejected).

Specified by:

getTotalBlockedTasks in interface JMXEnabledThreadPoolExecutorMBean

getCurrentlyBlockedTasks

public int getCurrentlyBlockedTasks()

Description copied from interface: JMXEnabledThreadPoolExecutorMBean

Get the number of tasks currently blocked, waiting to be accepted by the executor (because all threads are busy and the backing queue is full).

Specified by:

getCurrentlyBlockedTasks in interface JMXEnabledThreadPoolExecutorMBean

getCoreThreads

public int getCoreThreads()

Description copied from interface: JMXEnabledThreadPoolExecutorMBean

Returns core pool size of thread pool.

Specified by:

getCoreThreads in interface JMXEnabledThreadPoolExecutorMBean

setCoreThreads

public void setCoreThreads(int number)

Description copied from interface: JMXEnabledThreadPoolExecutorMBean

Allows user to resize core pool size of the thread pool.

Specified by:

setCoreThreads in interface JMXEnabledThreadPoolExecutorMBean

getMaximumThreads

public int getMaximumThreads()

Description copied from interface: JMXEnabledThreadPoolExecutorMBean

Returns maximum pool size of thread pool.

Specified by:

getMaximumThreads in interface JMXEnabledThreadPoolExecutorMBean

setMaximumThreads

public void setMaximumThreads(int number)

Description copied from interface: JMXEnabledThreadPoolExecutorMBean

Allows user to resize maximum size of the thread pool.

Specified by:

setMaximumThreads in interface JMXEnabledThreadPoolExecutorMBean

onInitialRejection

protected void onInitialRejection(java.lang.Runnable task)

Overrides:

onInitialRejection in class DebuggableThreadPoolExecutor

onFinalAccept

protected void onFinalAccept(java.lang.Runnable task)

Overrides:

onFinalAccept in class DebuggableThreadPoolExecutor

onFinalRejection

protected void onFinalRejection(java.lang.Runnable task)

Overrides:

onFinalRejection in class DebuggableThreadPoolExecutor