Examples with SynchronousQueue java.util.concurrent.SynchronousQueue used on opensource projects

Example 86 with SynchronousQueue

use of java.util.concurrent.SynchronousQueue in project hive by apache.

the class TestJdbcWithMiniHS2 method startConcurrencyTest.

private static void startConcurrencyTest(Connection conn, String tableName, int numTasks) {
    // Start concurrent testing
    int poolSize = 100;
    SynchronousQueue<Runnable> executorQueue = new SynchronousQueue<Runnable>();
    ExecutorService workers = new ThreadPoolExecutor(1, poolSize, 20, TimeUnit.SECONDS, executorQueue);
    List<Future<Boolean>> list = startTasks(workers, conn, tableName, numTasks);
    finishTasks(list, workers);
}

Example 87 with SynchronousQueue

use of java.util.concurrent.SynchronousQueue in project hive by apache.

the class TestJdbcWithMiniHS2 method testParallelCompilation4.

@Test
public void testParallelCompilation4() throws Exception {
    Statement stmt = conTestDb.createStatement();
    stmt.execute("set hive.driver.parallel.compilation=true");
    stmt.execute("set hive.server2.async.exec.async.compile=false");
    stmt.close();
    Connection conn = getConnection(testDbName);
    stmt = conn.createStatement();
    stmt.execute("set hive.driver.parallel.compilation=true");
    stmt.execute("set hive.server2.async.exec.async.compile=false");
    stmt.close();
    int poolSize = 100;
    SynchronousQueue<Runnable> executorQueue1 = new SynchronousQueue<Runnable>();
    ExecutorService workers1 = new ThreadPoolExecutor(1, poolSize, 20, TimeUnit.SECONDS, executorQueue1);
    SynchronousQueue<Runnable> executorQueue2 = new SynchronousQueue<Runnable>();
    ExecutorService workers2 = new ThreadPoolExecutor(1, poolSize, 20, TimeUnit.SECONDS, executorQueue2);
    List<Future<Boolean>> list1 = startTasks(workers1, conTestDb, tableName, 10);
    List<Future<Boolean>> list2 = startTasks(workers2, conn, tableName, 10);
    finishTasks(list1, workers1);
    finishTasks(list2, workers2);
    conn.close();
}

Example 88 with SynchronousQueue

use of java.util.concurrent.SynchronousQueue in project zookeeper by apache.

the class QuorumCnxManager method initializeConnectionExecutor.

// we always use the Connection Executor during connection initiation (to handle connection
// timeouts), and optionally use it during receiving connections (as the Quorum SASL authentication
// can take extra time)
private void initializeConnectionExecutor(final long mySid, final int quorumCnxnThreadsSize) {
    final AtomicInteger threadIndex = new AtomicInteger(1);
    SecurityManager s = System.getSecurityManager();
    final ThreadGroup group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
    final ThreadFactory daemonThFactory = runnable -> new Thread(group, runnable, String.format("QuorumConnectionThread-[myid=%d]-%d", mySid, threadIndex.getAndIncrement()));
    this.connectionExecutor = new ThreadPoolExecutor(3, quorumCnxnThreadsSize, 60, TimeUnit.SECONDS, new SynchronousQueue<>(), daemonThFactory);
    this.connectionExecutor.allowCoreThreadTimeOut(true);
}

Example 89 with SynchronousQueue

use of java.util.concurrent.SynchronousQueue in project dubbo by alibaba.

the class FixedThreadPool method getExecutor.

@Override
public Executor getExecutor(URL url) {
    String name = url.getParameter(THREAD_NAME_KEY, DEFAULT_THREAD_NAME);
    int threads = url.getParameter(THREADS_KEY, DEFAULT_THREADS);
    int queues = url.getParameter(QUEUES_KEY, DEFAULT_QUEUES);
    return new ThreadPoolExecutor(threads, threads, 0, TimeUnit.MILLISECONDS, queues == 0 ? new SynchronousQueue<Runnable>() : (queues < 0 ? new LinkedBlockingQueue<Runnable>() : new LinkedBlockingQueue<Runnable>(queues)), new NamedInternalThreadFactory(name, true), new AbortPolicyWithReport(name, url));
}

Example 90 with SynchronousQueue

use of java.util.concurrent.SynchronousQueue in project jmeter by apache.

the class ResourcesDownloader method init.

private void init() {
    LOG.info("Creating ResourcesDownloader with keepalive_inseconds : {}", THREAD_KEEP_ALIVE_TIME);
    concurrentExecutor = new ThreadPoolExecutor(MIN_POOL_SIZE, MAX_POOL_SIZE, THREAD_KEEP_ALIVE_TIME, TimeUnit.SECONDS, new SynchronousQueue<>(), r -> {
        Thread t = new Thread(r);
        // $NON-NLS-1$
        t.setName("ResDownload-" + t.getName());
        t.setDaemon(true);
        return t;
    }) {
    };
}