Examples with PoolAcquirePendingLimitException reactor.pool.PoolAcquirePendingLimitException used on opensource projects

Example 1 with PoolAcquirePendingLimitException

use of reactor.pool.PoolAcquirePendingLimitException in project reactor-netty by reactor.

the class DefaultPooledConnectionProviderTest method testIssue951_MaxPendingAcquire.

@Test
void testIssue951_MaxPendingAcquire() throws InterruptedException {
    DisposableServer server = TcpServer.create().port(0).handle((in, out) -> out.sendString(Mono.just("test").delayElement(Duration.ofMillis(100)))).wiretap(true).bindNow();
    DefaultPooledConnectionProvider provider = (DefaultPooledConnectionProvider) ConnectionProvider.builder("testIssue951_MaxPendingAcquire").maxConnections(1).pendingAcquireTimeout(Duration.ofMillis(30)).pendingAcquireMaxCount(1).build();
    CountDownLatch latch = new CountDownLatch(2);
    try {
        AtomicReference<InstrumentedPool<PooledConnection>> pool = new AtomicReference<>();
        List<? extends Signal<? extends Connection>> list = Flux.range(0, 3).flatMapDelayError(i -> TcpClient.create(provider).port(server.port()).doOnConnected(conn -> {
            ConcurrentMap<PooledConnectionProvider.PoolKey, InstrumentedPool<PooledConnection>> pools = provider.channelPools;
            pool.set(pools.get(pools.keySet().toArray()[0]));
        }).doOnDisconnected(conn -> latch.countDown()).handle((in, out) -> in.receive().then()).wiretap(true).connect().materialize(), 256, 32).collectList().doFinally(fin -> latch.countDown()).block(Duration.ofSeconds(30));
        assertThat(latch.await(30, TimeUnit.SECONDS)).as("latch 30s").isTrue();
        assertThat(list).isNotNull().hasSize(3);
        int onNext = 0;
        int onErrorTimeout = 0;
        int onErrorPendingAcquire = 0;
        String msg1 = "Pool#acquire(Duration) has been pending for more than the configured timeout of 30ms";
        String msg2 = "Pending acquire queue has reached its maximum size of 1";
        for (int i = 0; i < 3; i++) {
            Signal<? extends Connection> signal = list.get(i);
            if (signal.isOnNext()) {
                onNext++;
            } else if (signal.getThrowable() instanceof TimeoutException && msg1.equals(signal.getThrowable().getMessage())) {
                onErrorTimeout++;
            } else if (signal.getThrowable() instanceof PoolAcquirePendingLimitException && msg2.equals(signal.getThrowable().getMessage())) {
                onErrorPendingAcquire++;
            }
        }
        assertThat(onNext).isEqualTo(1);
        assertThat(onErrorTimeout).isEqualTo(1);
        assertThat(onErrorPendingAcquire).isEqualTo(1);
        assertThat(pool.get().metrics().acquiredSize()).as("currently acquired").isEqualTo(0);
        assertThat(pool.get().metrics().idleSize()).as("currently idle").isEqualTo(0);
    } finally {
        server.disposeNow();
        provider.dispose();
    }
}