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[performance](load) fix broker load scan ranges for unsplittable files (
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fe/fe-core/src/test/java/org/apache/doris/datasource/FileGroupIntoTest.java
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| // 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. | ||
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| package org.apache.doris.datasource; | ||
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| import org.junit.jupiter.api.Assertions; | ||
| import org.junit.jupiter.params.ParameterizedTest; | ||
| import org.junit.jupiter.params.provider.Arguments; | ||
| import org.junit.jupiter.params.provider.MethodSource; | ||
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| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.stream.Stream; | ||
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| public class FileGroupIntoTest { | ||
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| private static Stream<Arguments> provideParameters() { | ||
| return Stream.of( | ||
| // 6, 5, 4+1, 3+2, max=6 | ||
| Arguments.of(Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L), 4, 6), | ||
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| // 6+1, 5+2, 4+3, max=7 | ||
| Arguments.of(Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L), 3, 7), | ||
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| // 6+3+1, 5+4+2, max=11 | ||
| Arguments.of(Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L), 2, 11), | ||
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| // 1 group, sum = 21 | ||
| Arguments.of(Arrays.asList(1L, 2L, 3L, 4L, 5L, 6L), 1, 21), | ||
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| // current algorithm is not perfect, | ||
| // perfect partition: 5+4, 3+3+3, max=9 | ||
| // current partition: 5+3, 4+3+3, max=10 | ||
| Arguments.of(Arrays.asList(3L, 3L, 3L, 4L, 5L), 2, 10), | ||
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| // current algorithm is not perfect, | ||
| // perfect partition: 3+3+6, 4+4+4, max=12 | ||
| // current partition: 6+4+3, 4+4+3, max=13 | ||
| Arguments.of(Arrays.asList(3L, 3L, 4L, 4L, 4L, 6L), 2, 13) | ||
| ); | ||
| } | ||
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| @ParameterizedTest | ||
| @MethodSource("provideParameters") | ||
| public void testAssignFilesToInstances(List<Long> fileSizes, int numInstances, long expected) { | ||
| List<List<Integer>> groups = FileGroupInfo.assignFilesToInstances(fileSizes, numInstances); | ||
| long max = groups.stream().map(group -> group.stream().mapToLong(fileSizes::get).sum()) | ||
| .max(Long::compare).orElse(0L); | ||
| Assertions.assertEquals(expected, max); | ||
| } | ||
| } |