| /** |
| * 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.bookkeeper.common.allocator.impl; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| import static org.mockito.ArgumentMatchers.anyInt; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| import io.netty.buffer.ByteBuf; |
| import io.netty.buffer.ByteBufAllocator; |
| import io.netty.buffer.PooledByteBufAllocator; |
| import io.netty.buffer.UnpooledByteBufAllocator; |
| |
| import java.lang.reflect.Constructor; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import org.apache.bookkeeper.common.allocator.ByteBufAllocatorBuilder; |
| import org.apache.bookkeeper.common.allocator.OutOfMemoryPolicy; |
| import org.apache.bookkeeper.common.allocator.PoolingPolicy; |
| import org.junit.Test; |
| |
| /** |
| * Tests for {@link ByteBufAllocatorBuilderImpl}. |
| */ |
| public class ByteBufAllocatorBuilderTest { |
| |
| private static final OutOfMemoryError outOfDirectMemException; |
| |
| static { |
| try { |
| Class<?> clazz = (Class<?>) ByteBufAllocatorBuilderTest.class.getClassLoader() |
| .loadClass("io.netty.util.internal.OutOfDirectMemoryError"); |
| @SuppressWarnings("unchecked") |
| Constructor<OutOfMemoryError> constructor = (Constructor<OutOfMemoryError>) clazz |
| .getDeclaredConstructor(String.class); |
| |
| constructor.setAccessible(true); |
| outOfDirectMemException = constructor.newInstance("no mem"); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| |
| } |
| |
| @Test |
| public void testOomWithException() { |
| ByteBufAllocator baseAlloc = mock(ByteBufAllocator.class); |
| when(baseAlloc.directBuffer(anyInt(), anyInt())).thenThrow(outOfDirectMemException); |
| |
| AtomicReference<OutOfMemoryError> receivedException = new AtomicReference<>(); |
| |
| ByteBufAllocator alloc = ByteBufAllocatorBuilder.create() |
| .pooledAllocator(baseAlloc) |
| .outOfMemoryPolicy(OutOfMemoryPolicy.ThrowException) |
| .outOfMemoryListener((e) -> { |
| receivedException.set(e); |
| }) |
| .build(); |
| |
| try { |
| alloc.buffer(); |
| fail("Should have thrown exception"); |
| } catch (OutOfMemoryError e) { |
| // Expected |
| assertEquals(outOfDirectMemException, e); |
| } |
| |
| // Ensure the notification was triggered even when exception is thrown |
| assertEquals(outOfDirectMemException, receivedException.get()); |
| } |
| |
| @Test |
| public void testOomWithFallback() { |
| ByteBufAllocator baseAlloc = mock(ByteBufAllocator.class); |
| when(baseAlloc.directBuffer(anyInt(), anyInt())).thenThrow(outOfDirectMemException); |
| |
| AtomicReference<OutOfMemoryError> receivedException = new AtomicReference<>(); |
| |
| ByteBufAllocator alloc = ByteBufAllocatorBuilder.create() |
| .pooledAllocator(baseAlloc) |
| .unpooledAllocator(UnpooledByteBufAllocator.DEFAULT) |
| .outOfMemoryPolicy(OutOfMemoryPolicy.FallbackToHeap) |
| .outOfMemoryListener((e) -> { |
| receivedException.set(e); |
| }) |
| .build(); |
| |
| // Should not throw exception |
| ByteBuf buf = alloc.buffer(); |
| assertEquals(UnpooledByteBufAllocator.DEFAULT, buf.alloc()); |
| |
| // No notification should have been triggered |
| assertEquals(null, receivedException.get()); |
| } |
| |
| @Test |
| public void testOomWithFallbackAndNoMoreHeap() { |
| ByteBufAllocator baseAlloc = mock(ByteBufAllocator.class); |
| when(baseAlloc.directBuffer(anyInt(), anyInt())).thenThrow(outOfDirectMemException); |
| |
| ByteBufAllocator heapAlloc = mock(ByteBufAllocator.class); |
| OutOfMemoryError noHeapError = new OutOfMemoryError("no more heap"); |
| when(heapAlloc.heapBuffer(anyInt(), anyInt())).thenThrow(noHeapError); |
| |
| AtomicReference<OutOfMemoryError> receivedException = new AtomicReference<>(); |
| |
| ByteBufAllocator alloc = ByteBufAllocatorBuilder.create() |
| .pooledAllocator(baseAlloc) |
| .unpooledAllocator(heapAlloc) |
| .outOfMemoryPolicy(OutOfMemoryPolicy.FallbackToHeap) |
| .outOfMemoryListener((e) -> { |
| receivedException.set(e); |
| }) |
| .build(); |
| |
| try { |
| alloc.buffer(); |
| fail("Should have thrown exception"); |
| } catch (OutOfMemoryError e) { |
| // Expected |
| assertEquals(noHeapError, e); |
| } |
| |
| // Ensure the notification was triggered even when exception is thrown |
| assertEquals(noHeapError, receivedException.get()); |
| } |
| |
| @Test |
| public void testOomUnpooledDirect() { |
| ByteBufAllocator heapAlloc = mock(ByteBufAllocator.class); |
| OutOfMemoryError noMemError = new OutOfMemoryError("no more direct mem"); |
| when(heapAlloc.directBuffer(anyInt(), anyInt())).thenThrow(noMemError); |
| |
| AtomicReference<OutOfMemoryError> receivedException = new AtomicReference<>(); |
| |
| ByteBufAllocator alloc = ByteBufAllocatorBuilder.create() |
| .poolingPolicy(PoolingPolicy.UnpooledHeap) |
| .unpooledAllocator(heapAlloc) |
| .outOfMemoryPolicy(OutOfMemoryPolicy.FallbackToHeap) |
| .outOfMemoryListener((e) -> { |
| receivedException.set(e); |
| }) |
| .build(); |
| |
| try { |
| alloc.directBuffer(); |
| fail("Should have thrown exception"); |
| } catch (OutOfMemoryError e) { |
| // Expected |
| assertEquals(noMemError, e); |
| } |
| |
| // Ensure the notification was triggered even when exception is thrown |
| assertEquals(noMemError, receivedException.get()); |
| } |
| |
| @Test |
| public void testOomUnpooledWithHeap() { |
| ByteBufAllocator heapAlloc = mock(ByteBufAllocator.class); |
| OutOfMemoryError noHeapError = new OutOfMemoryError("no more heap"); |
| when(heapAlloc.heapBuffer(anyInt(), anyInt())).thenThrow(noHeapError); |
| |
| AtomicReference<OutOfMemoryError> receivedException = new AtomicReference<>(); |
| |
| ByteBufAllocator alloc = ByteBufAllocatorBuilder.create() |
| .poolingPolicy(PoolingPolicy.UnpooledHeap) |
| .unpooledAllocator(heapAlloc) |
| .outOfMemoryPolicy(OutOfMemoryPolicy.FallbackToHeap) |
| .outOfMemoryListener((e) -> { |
| receivedException.set(e); |
| }) |
| .build(); |
| |
| try { |
| alloc.heapBuffer(); |
| fail("Should have thrown exception"); |
| } catch (OutOfMemoryError e) { |
| // Expected |
| assertEquals(noHeapError, e); |
| } |
| |
| // Ensure the notification was triggered even when exception is thrown |
| assertEquals(noHeapError, receivedException.get()); |
| } |
| |
| @Test |
| public void testUnpooled() { |
| ByteBufAllocator alloc = ByteBufAllocatorBuilder.create() |
| .poolingPolicy(PoolingPolicy.UnpooledHeap) |
| .build(); |
| |
| ByteBuf buf = alloc.buffer(); |
| assertEquals(UnpooledByteBufAllocator.DEFAULT, buf.alloc()); |
| assertTrue(buf.hasArray()); |
| |
| ByteBuf buf2 = alloc.directBuffer(); |
| assertEquals(UnpooledByteBufAllocator.DEFAULT, buf2.alloc()); |
| assertFalse(buf2.hasArray()); |
| } |
| |
| @Test |
| public void testPooled() { |
| PooledByteBufAllocator pooledAlloc = new PooledByteBufAllocator(true); |
| |
| ByteBufAllocator alloc = ByteBufAllocatorBuilder.create() |
| .poolingPolicy(PoolingPolicy.PooledDirect) |
| .pooledAllocator(pooledAlloc) |
| .build(); |
| |
| assertTrue(alloc.isDirectBufferPooled()); |
| |
| ByteBuf buf1 = alloc.buffer(); |
| assertEquals(pooledAlloc, buf1.alloc()); |
| assertFalse(buf1.hasArray()); |
| buf1.release(); |
| |
| ByteBuf buf2 = alloc.directBuffer(); |
| assertEquals(pooledAlloc, buf2.alloc()); |
| assertFalse(buf2.hasArray()); |
| buf2.release(); |
| |
| ByteBuf buf3 = alloc.heapBuffer(); |
| assertEquals(pooledAlloc, buf3.alloc()); |
| assertTrue(buf3.hasArray()); |
| buf3.release(); |
| } |
| |
| @Test |
| public void testPooledWithDefaultAllocator() { |
| ByteBufAllocator alloc = ByteBufAllocatorBuilder.create() |
| .poolingPolicy(PoolingPolicy.PooledDirect) |
| .poolingConcurrency(3) |
| .build(); |
| |
| assertTrue(alloc.isDirectBufferPooled()); |
| |
| ByteBuf buf1 = alloc.buffer(); |
| assertEquals(PooledByteBufAllocator.class, buf1.alloc().getClass()); |
| assertEquals(3, ((PooledByteBufAllocator) buf1.alloc()).metric().numDirectArenas()); |
| assertFalse(buf1.hasArray()); |
| buf1.release(); |
| |
| ByteBuf buf2 = alloc.directBuffer(); |
| assertFalse(buf2.hasArray()); |
| buf2.release(); |
| |
| ByteBuf buf3 = alloc.heapBuffer(); |
| assertTrue(buf3.hasArray()); |
| buf3.release(); |
| } |
| } |