liyafan82 commented on a change in pull request #6323: URL: https://github.com/apache/arrow/pull/6323#discussion_r412070422
########## File path: java/vector/src/test/java/org/apache/arrow/vector/TestLargeVector.java ########## @@ -0,0 +1,187 @@ +/* + * 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.arrow.vector; + +import static org.junit.Assert.assertArrayEquals; +import static org.junit.Assert.assertEquals; + +import org.apache.arrow.memory.BufferAllocator; +import org.apache.arrow.memory.RootAllocator; + +import io.netty.buffer.ArrowBuf; + +/** + * Integration test for a vector with a large (more than 2GB) {@link io.netty.buffer.ArrowBuf} as + * the data buffer. + * To run this test, please + *<li>Make sure there are 4GB memory available in the system.</li> + * <li> + * Make sure the default allocation manager type is unsafe. + * This can be achieved by the environmental variable or system property. + * The details can be found in {@link DefaultAllocationManagerOption}. + * </li> + */ +public class TestLargeVector { + private static void testLargeLongVector() { + System.out.println("Testing large big int vector."); + + final long bufSize = 4 * 1024 * 1024 * 1024L; + final int vecLength = (int) (bufSize / BigIntVector.TYPE_WIDTH); + + try (BufferAllocator allocator = new RootAllocator(Long.MAX_VALUE); + BigIntVector largeVec = new BigIntVector("vec", allocator)) { + largeVec.allocateNew(vecLength); + + System.out.println("Successfully allocated a vector with capacity " + vecLength); + + for (int i = 0; i < vecLength; i++) { + largeVec.set(i, i * 10L); + + if ((i + 1) % 10000 == 0) { + System.out.println("Successfully written " + (i + 1) + " values"); + } + } + System.out.println("Successfully written " + vecLength + " values"); + + for (int i = 0; i < vecLength; i++) { + long val = largeVec.get(i); + assertEquals(i * 10L, val); + + if ((i + 1) % 10000 == 0) { + System.out.println("Successfully read " + (i + 1) + " values"); + } + } + System.out.println("Successfully read " + vecLength + " values"); + } + System.out.println("Successfully released the large vector."); + } + + private static void testLargeIntVector() { + System.out.println("Testing large int vector."); + + final long bufSize = 4 * 1024 * 1024 * 1024L; + final int vecLength = (int) (bufSize / IntVector.TYPE_WIDTH); + + try (BufferAllocator allocator = new RootAllocator(Long.MAX_VALUE); + IntVector largeVec = new IntVector("vec", allocator)) { + largeVec.allocateNew(vecLength); + + System.out.println("Successfully allocated a vector with capacity " + vecLength); + + for (int i = 0; i < vecLength; i++) { + largeVec.set(i, i); + + if ((i + 1) % 10000 == 0) { + System.out.println("Successfully written " + (i + 1) + " values"); + } + } + System.out.println("Successfully written " + vecLength + " values"); + + for (int i = 0; i < vecLength; i++) { + long val = largeVec.get(i); + assertEquals(i, val); + + if ((i + 1) % 10000 == 0) { + System.out.println("Successfully read " + (i + 1) + " values"); + } + } + System.out.println("Successfully read " + vecLength + " values"); + } + System.out.println("Successfully released the large vector."); + } + + private static void testLargeDecimalVector() { + System.out.println("Testing large decimal vector."); + + final long bufSize = 4 * 1024 * 1024 * 1024L; + final int vecLength = (int) (bufSize / DecimalVector.TYPE_WIDTH); + + try (BufferAllocator allocator = new RootAllocator(Long.MAX_VALUE); + DecimalVector largeVec = new DecimalVector("vec", allocator, 38, 16)) { + largeVec.allocateNew(vecLength); + + System.out.println("Successfully allocated a vector with capacity " + vecLength); + + for (int i = 0; i < vecLength; i++) { + largeVec.set(i, 0); + + if ((i + 1) % 10000 == 0) { + System.out.println("Successfully written " + (i + 1) + " values"); + } + } + System.out.println("Successfully written " + vecLength + " values"); + + for (int i = 0; i < vecLength; i++) { + ArrowBuf buf = largeVec.get(i); + assertEquals(buf.capacity(), DecimalVector.TYPE_WIDTH); + assertEquals(0, buf.getLong(0)); + assertEquals(0, buf.getLong(8)); + + if ((i + 1) % 10000 == 0) { + System.out.println("Successfully read " + (i + 1) + " values"); + } + } + System.out.println("Successfully read " + vecLength + " values"); + } + System.out.println("Successfully released the large vector."); + } + + private static void testLargeFixedSizeBinaryVector() { + System.out.println("Testing large fixed size binary vector."); + + final long bufSize = 4 * 1024 * 1024 * 1024L; + final int typeWidth = 8; + final int vecLength = (int) (bufSize / typeWidth); + + try (BufferAllocator allocator = new RootAllocator(Long.MAX_VALUE); + FixedSizeBinaryVector largeVec = new FixedSizeBinaryVector("vec", allocator, typeWidth)) { + largeVec.allocateNew(vecLength); + + System.out.println("Successfully allocated a vector with capacity " + vecLength); + + byte[] value = new byte[] {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'}; + for (int i = 0; i < vecLength; i++) { + largeVec.set(i, value); + + if ((i + 1) % 10000 == 0) { + System.out.println("Successfully written " + (i + 1) + " values"); + } + } + System.out.println("Successfully written " + vecLength + " values"); + + for (int i = 0; i < vecLength; i++) { + byte[] buf = largeVec.get(i); + assertEquals(typeWidth, buf.length); + assertArrayEquals(buf, value); + + if ((i + 1) % 10000 == 0) { + System.out.println("Successfully read " + (i + 1) + " values"); + } + } + System.out.println("Successfully read " + vecLength + " values"); + } + System.out.println("Successfully released the large vector."); + } + + public static void main(String[] args) { Review comment: As discussed above, if we make it a unit test, we cannot allocate too much memory. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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