| /* |
| * 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.drill.exec.physical.impl.xsort.managed; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import org.apache.drill.exec.exception.OutOfMemoryException; |
| import org.apache.drill.exec.memory.Accountant; |
| import org.apache.drill.exec.memory.BufferAllocator; |
| import org.apache.drill.exec.util.AssertionUtil; |
| import org.apache.drill.test.LogFixture; |
| import org.apache.drill.test.LogFixture.LogFixtureBuilder; |
| import org.apache.drill.test.SubOperatorTest; |
| import org.junit.Test; |
| |
| import ch.qos.logback.classic.Level; |
| import io.netty.buffer.DrillBuf; |
| |
| /** |
| * Test of temporary allocator feature to allow a grace margin |
| * for error in allocations from operators that make a good-faith |
| * effort to stay within their budgets, but are sometimes undone |
| * by unexpected power-of-two buffer sizes and vector doubling. |
| */ |
| |
| public class TestLenientAllocation extends SubOperatorTest { |
| |
| /** |
| * Use a test-time hack to force the allocator to be lenient, |
| * regardless of whether we are in debug mode or not. |
| */ |
| |
| @Test |
| public void testLenient() { |
| LogFixtureBuilder logBuilder = LogFixture.builder() |
| .logger(Accountant.class, Level.WARN); |
| |
| try (LogFixture logFixture = logBuilder.build()) { |
| |
| // Test can't run without assertions |
| |
| assertTrue(AssertionUtil.isAssertionsEnabled()); |
| |
| // Create a child allocator |
| |
| BufferAllocator allocator = fixture.allocator().newChildAllocator("test", 10 * 1024, 128 * 1024); |
| ((Accountant) allocator).forceLenient(); |
| |
| // Allocate most of the available memory |
| |
| DrillBuf buf1 = allocator.buffer(64 * 1024); |
| |
| // Oops, we did our math wrong; allocate too large a buffer. |
| |
| DrillBuf buf2 = allocator.buffer(128 * 1024); |
| |
| assertEquals(192 * 1024, allocator.getAllocatedMemory()); |
| |
| // We keep making mistakes. |
| |
| DrillBuf buf3 = allocator.buffer(32 * 1024); |
| |
| // Right up to the hard limit |
| |
| DrillBuf buf4 = allocator.buffer(32 * 1024); |
| assertEquals(256 * 1024, allocator.getAllocatedMemory()); |
| |
| // Enough of this; we're abusing the system. Next |
| // allocation fails. |
| |
| try { |
| allocator.buffer(8); |
| fail(); |
| } catch (OutOfMemoryException e) { |
| // Expected |
| } |
| |
| // Recover from our excesses |
| |
| buf2.close(); |
| buf3.close(); |
| buf4.close(); |
| assertEquals(64 * 1024, allocator.getAllocatedMemory()); |
| |
| // We're back in the good graces of the allocator, |
| // can allocate more. |
| |
| DrillBuf buf5 = allocator.buffer(8); |
| |
| // Clean up |
| |
| buf1.close(); |
| buf5.close(); |
| allocator.close(); |
| } |
| } |
| |
| /** |
| * Test that the allocator is normally strict in debug mode. |
| */ |
| |
| @Test |
| public void testStrict() { |
| LogFixtureBuilder logBuilder = LogFixture.builder() |
| .logger(Accountant.class, Level.WARN); |
| |
| try (LogFixture logFixture = logBuilder.build()) { |
| |
| // Test can't run without assertions |
| |
| assertTrue(AssertionUtil.isAssertionsEnabled()); |
| |
| // Create a child allocator |
| |
| BufferAllocator allocator = fixture.allocator().newChildAllocator("test", 10 * 1024, 128 * 1024); |
| |
| // Allocate most of the available memory |
| |
| DrillBuf buf1 = allocator.buffer(64 * 1024); |
| |
| // Oops, we did our math wrong; allocate too large a buffer. |
| |
| try { |
| allocator.buffer(128 * 1024); |
| fail(); |
| } catch (OutOfMemoryException e) { |
| // Expected |
| } |
| |
| // Clean up |
| |
| buf1.close(); |
| allocator.close(); |
| } |
| } |
| |
| public static final int ONE_MEG = 1024 * 1024; |
| |
| @Test |
| public void testLenientLimit() { |
| LogFixtureBuilder logBuilder = LogFixture.builder() |
| .logger(Accountant.class, Level.WARN); |
| |
| try (LogFixture logFixture = logBuilder.build()) { |
| |
| // Test can't run without assertions |
| |
| assertTrue(AssertionUtil.isAssertionsEnabled()); |
| |
| // Create a child allocator |
| |
| BufferAllocator allocator = fixture.allocator().newChildAllocator("test", 10 * ONE_MEG, 128 * ONE_MEG); |
| ((Accountant) allocator).forceLenient(); |
| |
| // Allocate most of the available memory |
| |
| DrillBuf buf1 = allocator.buffer(64 * ONE_MEG); |
| |
| // Oops, we did our math wrong; allocate too large a buffer. |
| |
| DrillBuf buf2 = allocator.buffer(128 * ONE_MEG); |
| |
| // Can't go the full 2x over limit, errors capped at 100 MB. |
| |
| try { |
| allocator.buffer(64 * ONE_MEG); |
| fail(); |
| } catch (OutOfMemoryException e) { |
| // Expected |
| } |
| |
| // Clean up |
| |
| buf1.close(); |
| buf2.close(); |
| allocator.close(); |
| } |
| } |
| } |