Github user WireBaron commented on a diff in the pull request:
https://github.com/apache/geode/pull/702#discussion_r133094233
--- Diff:
geode-core/src/main/java/org/apache/geode/internal/net/SocketCloser.java ---
@@ -96,46 +99,55 @@ public int getMaxThreads() {
return this.asyncClosePoolMaxThreads;
}
- private ThreadPoolExecutor getAsyncThreadExecutor(String address) {
- synchronized (asyncCloseExecutors) {
- ThreadPoolExecutor pool = asyncCloseExecutors.get(address);
- if (pool == null) {
- final ThreadGroup tg =
LoggingThreadGroup.createThreadGroup("Socket asyncClose", logger);
- ThreadFactory tf = new ThreadFactory() {
- public Thread newThread(final Runnable command) {
- Thread thread = new Thread(tg, command);
- thread.setDaemon(true);
- return thread;
- }
- };
- BlockingQueue<Runnable> workQueue = new
LinkedBlockingQueue<Runnable>();
- pool = new ThreadPoolExecutor(this.asyncClosePoolMaxThreads,
this.asyncClosePoolMaxThreads,
- this.asyncClosePoolKeepAliveSeconds, TimeUnit.SECONDS,
workQueue, tf);
- pool.allowCoreThreadTimeOut(true);
- asyncCloseExecutors.put(address, pool);
+ private ExecutorService getAsyncThreadExecutor(String address) {
+ ExecutorService executorService = asyncCloseExecutors.get(address);
+ if (executorService == null) {
+ // To be used for pre-1.8 jdk releases.
+ // createThreadPool();
+
+ executorService =
Executors.newWorkStealingPool(asyncClosePoolMaxThreads);
+
+ ExecutorService previousThreadPoolExecutor =
+ asyncCloseExecutors.putIfAbsent(address, executorService);
+
+ if (previousThreadPoolExecutor != null) {
+ executorService.shutdownNow();
+ return previousThreadPoolExecutor;
}
- return pool;
}
+ return executorService;
+ }
+
+ /**
+ * @deprecated this method is to be used for pre 1.8 jdk.
+ */
+ @Deprecated
+ private void createThreadPool() {
+ ExecutorService executorService;
+ final ThreadGroup threadGroup =
+ LoggingThreadGroup.createThreadGroup("Socket asyncClose", logger);
+ ThreadFactory threadFactory = new ThreadFactory() {
+ public Thread newThread(final Runnable command) {
+ Thread thread = new Thread(threadGroup, command);
+ thread.setDaemon(true);
+ return thread;
+ }
+ };
+
+ executorService = new ThreadPoolExecutor(asyncClosePoolMaxThreads,
asyncClosePoolMaxThreads,
+ asyncCloseWaitTime, asyncCloseWaitUnits, new
LinkedBlockingQueue<>(), threadFactory);
}
/**
* Call this method if you know all the resources in the closer for the
given address are no
* longer needed. Currently a thread pool is kept for each address and
if you know that an address
* no longer needs its pool then you should call this method.
*/
- public void releaseResourcesForAddress(String address) {
- synchronized (asyncCloseExecutors) {
- ThreadPoolExecutor pool = asyncCloseExecutors.get(address);
- if (pool != null) {
- pool.shutdown();
- asyncCloseExecutors.remove(address);
- }
- }
- }
- private boolean isClosed() {
- synchronized (asyncCloseExecutors) {
- return this.closed;
+ public void releaseResourcesForAddress(String address) {
+ ExecutorService executorService = asyncCloseExecutors.remove(address);
+ if (executorService != null) {
+ executorService.shutdown();
--- End diff --
Is this call (excutorService.shutdown) reentrant?
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