@Override
public void start() throws CacheLoaderException {
state = newStateMap();
log.debugf("Async cache loader starting %s", this);
stopped.set(false);
lastAsyncProcessorShutsDownExecutor = false;
super.start();
int poolSize = asyncStoreConfig.getThreadPoolSize();
executor =
new ThreadPoolExecutor(
poolSize,
poolSize,
0L,
TimeUnit.MILLISECONDS,
// note the use of poolSize+1 as maximum workingQueue together with DiscardPolicy:
// this way when a new AsyncProcessor is started unnecessarily we discard it
// before it takes locks to perform no work
// this way we save memory from the executor queue, CPU, and also avoid
// any possible RejectedExecutionException.
new LinkedBlockingQueue<Runnable>(poolSize + 1),
new ThreadFactory() {
public Thread newThread(Runnable r) {
Thread t = new Thread(r, "CoalescedAsyncStore-" + threadId.getAndIncrement());
t.setDaemon(true);
return t;
}
},
new ThreadPoolExecutor.DiscardPolicy());
startStoreCoordinator();
}
