/**
* Creates a {@link ScheduledThreadPoolExecutor} with custom name for the threads.
*
* @param name the prefix to add to the thread name in ThreadFactory.
* @return The default thread pool for request timeout and client execution timeout features.
*/
public static ScheduledThreadPoolExecutor buildDefaultTimeoutThreadPool(final String name) {
ScheduledThreadPoolExecutor executor =
new ScheduledThreadPoolExecutor(5, getThreadFactory(name));
safeSetRemoveOnCancel(executor);
executor.setKeepAliveTime(5, TimeUnit.SECONDS);
executor.allowCoreThreadTimeOut(true);
return executor;
}
/* CONSTRUCTOR */
public ServiceSensorControl() {
// Register this object globally
GlobalContext.set(this);
// Create the executor service, keep two threads in the pool
executorService =
new ScheduledThreadPoolExecutor(SensorCollectionOptions.MAIN_EXECUTOR_CORE_POOL);
// If feature is available, enable core thread timeout with five seconds
if (Build.VERSION.SDK_INT >= 9) {
executorService.setKeepAliveTime(MAIN_EXECUTOR_CORE_TIMEOUT, TimeUnit.MILLISECONDS);
executorService.allowCoreThreadTimeOut(true);
}
}
@Override
protected void serviceInit(Configuration conf) throws Exception {
ThreadFactory tf = new ThreadFactoryBuilder().setNameFormat("DeletionService #%d").build();
if (conf != null) {
sched =
new ScheduledThreadPoolExecutor(
conf.getInt(
YarnConfiguration.NM_DELETE_THREAD_COUNT,
YarnConfiguration.DEFAULT_NM_DELETE_THREAD_COUNT),
tf);
debugDelay = conf.getInt(YarnConfiguration.DEBUG_NM_DELETE_DELAY_SEC, 0);
} else {
sched = new ScheduledThreadPoolExecutor(YarnConfiguration.DEFAULT_NM_DELETE_THREAD_COUNT, tf);
}
sched.setExecuteExistingDelayedTasksAfterShutdownPolicy(false);
sched.setKeepAliveTime(60L, SECONDS);
if (stateStore.canRecover()) {
recover(stateStore.loadDeletionServiceState());
}
super.serviceInit(conf);
}
{
schedThPoolExec.prestartAllCoreThreads();
schedThPoolExec.setKeepAliveTime(0, TimeUnit.SECONDS);
}