public void run() {
StopWatch st = null;
if (GPResourceHome.perfProfile.PROFILE) {
st = new StopWatch(false, false, true);
st.start();
}
StopWatch ct = new StopWatch();
int numWorkers = 0;
try {
if (GPResourceHome.commonState == null) {
GPResourceHome.load_common();
}
} catch (Exception e) {
e.printStackTrace();
}
ct.start();
while (true) {
if (GPResourceHome.perfProfile.PROFILE) {
st.stop();
GPResourceHome.perfProfile.addSample("notification_engine_worker", st.getElapsedTimeMX());
st.reset();
st.start();
}
GPResource gpResource = null;
try {
// logger.debug("gpResource.notificationWorkerQ.remove()...");
gpResource = (GPResource) GPResourceHome.commonState.getNextResource();
// gpResource =
// (GPResource)GPResourceHome.commonState.notificationWorkerQ.remove();//GPResourceHome.commonState.notificationQ.waitUntilNotEmpty();
boolean sentOK = false;
if (gpResource != null
&& gpResource.taskQ != null
&& gpResource.taskPendQ != null
&& (gpResource.taskQ.size() + gpResource.taskPendQ.size()) > 0)
// if (gpResource != null)
{
Task task = null;
// if (gpResource.DATA_AWARE_SCHEDULER && !gpResource.MAX_CACHE_HIT)
if (gpResource.DATA_AWARE_SCHEDULER) {
// synchronized(gpResource)
// {
// task = (Task)gpResource.taskQ.remove();
task = (Task) gpResource.taskQ.removeNoWait();
if (task == null) {
task = (Task) gpResource.taskPendQ.remove();
}
logger.debug(
"GPService:NotificationEngine:sendNotification(): removed task "
+ task.getExecutable().getId()
+ " from gpResource.taskQ... gpResource.taskQ.size() = "
+ gpResource.taskQ.size());
gpResource.taskPendQ.insert(task);
logger.debug(
"GPService:NotificationEngine:sendNotification(): inserted task "
+ task.getExecutable().getId()
+ " into gpResource.taskPendQ... gpResource.taskPendQ.size() = "
+ gpResource.taskPendQ.size());
// }
}
logger.debug(
"GPService:NotificationEngine:sendNotification(): key = "
+ String.valueOf(gpResource.resourceKey)
+ " ...");
// if (gpResourceHome.sendNotification(gpResource.resourceKey))
boolean sendNotificationTest = false;
if (gpResourceHome.useTCPCore) {
sendNotificationTest = gpResourceHome.sendNotificationTCPCore(gpResource);
}
// else if (gpResource.DATA_AWARE_SCHEDULER && !gpResource.MAX_CACHE_HIT)
else if (gpResource.DATA_AWARE_SCHEDULER) {
sendNotificationTest = gpResourceHome.sendNotification(gpResource, task);
} /*
else if (gpResourceHome.localFork)
{
sendNotificationTest = gpResourceHome.sendNotificationLocal(gpResource);
} */ else {
sendNotificationTest = gpResourceHome.sendNotification(gpResource);
}
if (sendNotificationTest) {
setNotificationsSent();
logger.debug(
"Notification for key "
+ String.valueOf(gpResource.resourceKey)
+ " sent successfully!");
// if (gpResource.DATA_AWARE_SCHEDULER)
// {
// gpResource.taskPendQ.insert(task);
// logger.debug("GPService:NotificationEngine:sendNotification(): inserted task into
// gpResource.taskPendQ... gpResource.taskPendQ.size() = " +
// gpResource.taskPendQ.size());
// }
// insert back in to try again later... this is a hack to ensure that we never run out
// of notification messages :)
// if (!gpResourceHome.useTCPCore)
// if (gpResource != null && gpResource.taskQ != null && (gpResource.taskQ.size() +
// gpResource.taskPendQ.size()) > 0 && (gpResource.taskQ.size() +
// gpResource.taskPendQ.size()) <= GPResourceHome.maxNumNotificationWorkerThreads*2)
// {
// logger.debug("there is still work to be collected and we have dipped below the
// number of notification threads, insert back into the notification queue...");
// GPResourceHome.commonState.notificationWorkerQ.insert(gpResource);
// }
} else {
logger.debug(
"Notification for key " + String.valueOf(gpResource.resourceKey) + " failed!");
// if (gpResource.DATA_AWARE_SCHEDULER && !gpResource.MAX_CACHE_HIT)
if (gpResource.DATA_AWARE_SCHEDULER) {
// synchronized(gpResource)
// {
// gpResource.taskPendQ.removeTask(task);
// should insert back at the front... fix this
// gpResource.taskQ.insertFront(task);
// }
// logger.debug("GPService:NotificationEngine:sendNotification(): inserted task " +
// task.getExecutable().getId() + " into gpResource.taskQ... gpResource.taskQ.size() =
// " + gpResource.taskQ.size());
}
// insert back in to try again later...
// if ((gpResource.taskQ.size() + gpResource.taskPendQ.size()) > 0)
// {
// logger.debug("there is still work to be collected, insert back into the
// notification queue...");
// GPResourceHome.commonState.notificationWorkerQ.insert(gpResource);
// used for throtling notifications...
/*
try
{
System.currentTimeMillis();
Thread.sleep(20);
}
catch (Exception sss)
{
} */
// }
}
}
if (MAX_NOT_PER_SEC > 0 && getNotificationsSent() >= MAX_NOT_PER_SEC) {
long timeLeft = NOT_TIME_QUANTA - ct.getElapsedTime();
if (timeLeft > 20)
try {
logger.debug(
getNotificationsSent()
+ " notifications sent in "
+ ct.getElapsedTime()
+ " ms, sleeping for "
+ timeLeft
+ " ms");
// System.currentTimeMillis();
Thread.sleep(timeLeft);
} catch (Exception sss) {
}
}
if (ct.getElapsedTime() >= NOT_TIME_QUANTA) {
if (getNotificationsSent() > 0) {
logger.debug(
"***NotificationEngineWorker(): "
+ getNotificationsSent()
+ " notifications sent to workers in "
+ ct.getElapsedTime()
+ " ms, maximum allowed notifications "
+ MAX_NOT_PER_SEC
+ " per "
+ NOT_TIME_QUANTA
+ " ms...");
}
ct.reset();
resetNotificationsSent();
ct.start();
}
// if (GPResourceHome.commonState.resourceQ.size() > 0 &&
// GPResourceHome.commonState.getWaitingTasks() <= 0)
if (GPResourceHome.commonState.getWaitingTasks() <= 0) {
try {
Thread.sleep(100);
} catch (Exception e) {
if (logger.isDebugEnabled()) e.printStackTrace();
}
}
} catch (Exception eee) {
logger.debug("Error in NotificationEngineWorker thread: " + eee);
if (logger.isDebugEnabled()) eee.printStackTrace();
// continue;
// if (gpResource != null && gpResource.taskQ != null && gpResource.taskQ.size() +
// gpResource.taskPendQ.size() > 0)
// if (gpResource != null && gpResource.taskQ != null)
// {
// logger.debug("there is still work to be collected, insert back into the notification
// queue...");
// GPResourceHome.commonState.notificationWorkerQ.insert(gpResource);
// }
}
}
}
