| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.pulsar.client.impl; |
| |
| import lombok.Cleanup; |
| import org.apache.pulsar.client.api.MessageId; |
| import org.apache.pulsar.client.api.ProducerConsumerBase; |
| import org.apache.pulsar.client.api.PulsarClientException; |
| import org.apache.pulsar.client.api.Schema; |
| import org.apache.pulsar.common.api.proto.MessageMetadata; |
| import org.apache.pulsar.common.util.FutureUtil; |
| import org.testng.Assert; |
| import org.testng.annotations.AfterMethod; |
| import org.testng.annotations.BeforeMethod; |
| import org.testng.annotations.Test; |
| |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.ExecutionException; |
| |
| @Test(groups = "broker-impl") |
| public class ProducerSemaphoreTest extends ProducerConsumerBase { |
| |
| @Override |
| @BeforeMethod |
| public void setup() throws Exception { |
| super.internalSetup(); |
| super.producerBaseSetup(); |
| } |
| |
| @Override |
| @AfterMethod(alwaysRun = true) |
| public void cleanup() throws Exception { |
| super.internalCleanup(); |
| } |
| |
| @Test(timeOut = 30000) |
| public void testProducerSemaphoreAcquireAndRelease() throws PulsarClientException, ExecutionException, InterruptedException { |
| |
| final int pendingQueueSize = 100; |
| |
| @Cleanup |
| ProducerImpl<byte[]> producer = (ProducerImpl<byte[]>) pulsarClient.newProducer() |
| .topic("testProducerSemaphoreAcquire") |
| .maxPendingMessages(pendingQueueSize) |
| .enableBatching(false) |
| .create(); |
| |
| final int messages = 10; |
| final List<CompletableFuture<MessageId>> futures = new ArrayList<>(messages); |
| producer.getClientCnx().channel().config().setAutoRead(false); |
| try { |
| for (int i = 0; i < messages; i++) { |
| futures.add(producer.newMessage().value(("Semaphore-test-" + i).getBytes()).sendAsync()); |
| } |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize - messages); |
| Assert.assertFalse(producer.isErrorStat()); |
| } finally { |
| producer.getClientCnx().channel().config().setAutoRead(true); |
| } |
| FutureUtil.waitForAll(futures).get(); |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize); |
| Assert.assertFalse(producer.isErrorStat()); |
| futures.clear(); |
| |
| // Simulate replicator, non batching message but `numMessagesInBatch` of message metadata > 1 |
| producer.getClientCnx().channel().config().setAutoRead(false); |
| try { |
| for (int i = 0; i < messages / 2; i++) { |
| MessageMetadata metadata = new MessageMetadata() |
| .setNumMessagesInBatch(10); |
| MessageImpl<byte[]> msg = MessageImpl.create(metadata, ByteBuffer.wrap(new byte[0]), Schema.BYTES, null); |
| futures.add(producer.sendAsync(msg)); |
| } |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize - messages/2); |
| Assert.assertFalse(producer.isErrorStat()); |
| } finally { |
| producer.getClientCnx().channel().config().setAutoRead(true); |
| } |
| FutureUtil.waitForAll(futures).get(); |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize); |
| Assert.assertFalse(producer.isErrorStat()); |
| futures.clear(); |
| |
| // Here must ensure that the semaphore available permits is 0 |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize); |
| Assert.assertFalse(producer.isErrorStat()); |
| |
| // Acquire 5 and not wait the send ack call back |
| producer.getClientCnx().channel().config().setAutoRead(false); |
| try { |
| for (int i = 0; i < messages / 2; i++) { |
| futures.add(producer.newMessage().value(("Semaphore-test-" + i).getBytes()).sendAsync()); |
| } |
| |
| // Here must ensure that the Semaphore a acquired 5 |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize - messages / 2); |
| Assert.assertFalse(producer.isErrorStat()); |
| } finally { |
| producer.getClientCnx().channel().config().setAutoRead(true); |
| |
| } |
| FutureUtil.waitForAll(futures).get(); |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize); |
| Assert.assertFalse(producer.isErrorStat()); |
| } |
| |
| /** |
| * We use semaphore to limit the pending send, so we must ensure that the thread of sending message never block |
| * at the pending message queue. If not, the dead lock might occur. Here is the related issue to describe the |
| * dead lock happens {https://github.com/apache/pulsar/issues/5585} |
| */ |
| @Test(timeOut = 30000) |
| public void testEnsureNotBlockOnThePendingQueue() throws Exception { |
| final int pendingQueueSize = 10; |
| |
| @Cleanup |
| ProducerImpl<byte[]> producer = (ProducerImpl<byte[]>) pulsarClient.newProducer() |
| .topic("testProducerSemaphoreAcquire") |
| .maxPendingMessages(pendingQueueSize) |
| .enableBatching(false) |
| .create(); |
| |
| final List<CompletableFuture<MessageId>> futures = new ArrayList<>(); |
| |
| // Simulate replicator, non batching message but `numMessagesInBatch` of message metadata > 1 |
| // Test that when we fill the queue with "replicator" messages, we are notified |
| // (replicator itself would block) |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize); |
| Assert.assertFalse(producer.isErrorStat()); |
| producer.getClientCnx().channel().config().setAutoRead(false); |
| try { |
| for (int i = 0; i < pendingQueueSize; i++) { |
| MessageMetadata metadata = new MessageMetadata() |
| .setNumMessagesInBatch(10); |
| |
| MessageImpl<byte[]> msg = MessageImpl.create(metadata, ByteBuffer.wrap(new byte[0]), Schema.BYTES, null); |
| futures.add(producer.sendAsync(msg)); |
| } |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), 0); |
| Assert.assertFalse(producer.isErrorStat()); |
| try { |
| MessageMetadata metadata = new MessageMetadata() |
| .setNumMessagesInBatch(10); |
| |
| MessageImpl<byte[]> msg = MessageImpl.create(metadata, ByteBuffer.wrap(new byte[0]), Schema.BYTES, null); |
| producer.sendAsync(msg).get(); |
| Assert.fail("Shouldn't be able to send message"); |
| } catch (ExecutionException ee) { |
| Assert.assertEquals(ee.getCause().getClass(), |
| PulsarClientException.ProducerQueueIsFullError.class); |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), 0); |
| Assert.assertFalse(producer.isErrorStat()); |
| } |
| } finally { |
| producer.getClientCnx().channel().config().setAutoRead(true); |
| } |
| FutureUtil.waitForAll(futures).get(); |
| futures.clear(); |
| |
| // Test that when we fill the queue with normal messages, we get an error |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize); |
| Assert.assertFalse(producer.isErrorStat()); |
| producer.getClientCnx().channel().config().setAutoRead(false); |
| try { |
| for (int i = 0; i < pendingQueueSize; i++) { |
| futures.add(producer.newMessage().value(("Semaphore-test-" + i).getBytes()).sendAsync()); |
| } |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), 0); |
| Assert.assertFalse(producer.isErrorStat()); |
| |
| try { |
| producer.newMessage().value(("Semaphore-test-Q-full").getBytes()).sendAsync().get(); |
| } catch (ExecutionException ee) { |
| Assert.assertEquals(ee.getCause().getClass(), |
| PulsarClientException.ProducerQueueIsFullError.class); |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), 0); |
| Assert.assertFalse(producer.isErrorStat()); |
| |
| } |
| } finally { |
| producer.getClientCnx().channel().config().setAutoRead(true); |
| } |
| FutureUtil.waitForAll(futures).get(); |
| Assert.assertEquals(producer.getSemaphore().get().availablePermits(), pendingQueueSize); |
| Assert.assertFalse(producer.isErrorStat()); |
| } |
| } |