rahil-c commented on code in PR #13669: URL: https://github.com/apache/hudi/pull/13669#discussion_r2249490260
########## hudi-spark-datasource/hudi-spark/src/test/java/org/apache/hudi/table/upgrade/TestUpgradeDowngradeFixtures.java: ########## @@ -0,0 +1,633 @@ +/* + * 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.hudi.table.upgrade; + +import org.apache.hudi.common.config.HoodieConfig; +import org.apache.hudi.common.config.RecordMergeMode; +import org.apache.hudi.common.model.HoodieIndexMetadata; +import org.apache.hudi.common.model.HoodieTableType; +import org.apache.hudi.common.table.HoodieTableConfig; +import org.apache.hudi.common.table.HoodieTableMetaClient; +import org.apache.hudi.common.table.HoodieTableVersion; +import org.apache.hudi.common.table.timeline.versioning.TimelineLayoutVersion; +import org.apache.hudi.common.util.Option; +import org.apache.hudi.config.HoodieWriteConfig; +import org.apache.hudi.metadata.HoodieTableMetadata; +import org.apache.hudi.storage.StoragePath; +import org.apache.hudi.testutils.HoodieSparkClientTestHarness; +import org.apache.spark.sql.Dataset; +import org.apache.spark.sql.Row; + +import org.junit.jupiter.api.AfterEach; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.io.TempDir; +import org.junit.jupiter.params.ParameterizedTest; +import org.junit.jupiter.params.provider.Arguments; +import org.junit.jupiter.params.provider.MethodSource; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.io.InputStream; +import java.nio.file.Files; +import java.nio.file.Paths; +import java.util.Properties; +import java.util.stream.Stream; + +import java.io.BufferedOutputStream; +import java.io.File; +import java.util.zip.ZipEntry; +import java.util.zip.ZipInputStream; + +import static org.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertFalse; +import static org.junit.jupiter.api.Assertions.assertNotNull; +import static org.junit.jupiter.api.Assertions.assertTrue; + +/** + * Test class for upgrade/downgrade operations using pre-created fixture tables + * from different Hudi releases. Tests round-trip operations: upgrade one version up, + * then downgrade back to original version. + */ +public class TestUpgradeDowngradeFixtures extends HoodieSparkClientTestHarness { + + private static final Logger LOG = LoggerFactory.getLogger(TestUpgradeDowngradeFixtures.class); + private static final String FIXTURES_BASE_PATH = "/upgrade-downgrade-fixtures/mor-tables/"; + + @TempDir + java.nio.file.Path tempDir; + + private HoodieTableMetaClient metaClient; + + @BeforeEach + public void setUp() throws IOException { + initSparkContexts(); + } + + @AfterEach + public void tearDown() throws IOException { + cleanupSparkContexts(); + } + + @ParameterizedTest + @MethodSource("fixtureVersions") + public void testRoundTripUpgradeDowngrade(HoodieTableVersion originalVersion) throws Exception { + LOG.info("Testing round-trip upgrade/downgrade for version {}", originalVersion); + + // Load fixture table + HoodieTableMetaClient originalMetaClient = loadFixtureTable(originalVersion); + assertEquals(originalVersion, originalMetaClient.getTableConfig().getTableVersion(), + "Fixture table should be at expected version"); + + // Calculate target version (next version up) + HoodieTableVersion targetVersion = getNextVersion(originalVersion); + if (targetVersion == null) { + LOG.info("Skipping upgrade test for version {} (no higher version available)", originalVersion); + return; + } + + // Create write config for upgrade operations + HoodieWriteConfig config = createWriteConfig(originalMetaClient, true); + + // Step 1: Upgrade to next version + LOG.info("Step 1: Upgrading from {} to {}", originalVersion, targetVersion); + new UpgradeDowngrade(originalMetaClient, config, context, SparkUpgradeDowngradeHelper.getInstance()) + .run(targetVersion, null); + + // Create fresh meta client to read updated table configuration after upgrade + HoodieTableMetaClient upgradedMetaClient = HoodieTableMetaClient.builder() + .setConf(storageConf.newInstance()) + .setBasePath(originalMetaClient.getBasePath()) + .build(); + assertTableVersionOnDataAndMetadataTable(upgradedMetaClient, targetVersion); + validateVersionSpecificProperties(upgradedMetaClient, originalVersion, targetVersion); + performDataValidationOnTable(upgradedMetaClient, "after upgrade"); + + // Step 2: Downgrade back to original version + LOG.info("Step 2: Downgrading from {} back to {}", targetVersion, originalVersion); + new UpgradeDowngrade(upgradedMetaClient, config, context, SparkUpgradeDowngradeHelper.getInstance()) + .run(originalVersion, null); + + // Create fresh meta client to read updated table configuration after downgrade + HoodieTableMetaClient finalMetaClient = HoodieTableMetaClient.builder() + .setConf(storageConf.newInstance()) + .setBasePath(upgradedMetaClient.getBasePath()) + .build(); + assertTableVersionOnDataAndMetadataTable(finalMetaClient, originalVersion); + validateVersionSpecificProperties(finalMetaClient, targetVersion, originalVersion); + performDataValidationOnTable(finalMetaClient, "after round-trip"); + + LOG.info("Successfully completed round-trip test for version {}", originalVersion); + } + + @ParameterizedTest + @MethodSource("fixtureVersions") + public void testAutoUpgradeDisabled(HoodieTableVersion originalVersion) throws Exception { + LOG.info("Testing auto-upgrade disabled for version {}", originalVersion); + + // Load fixture table + HoodieTableMetaClient originalMetaClient = loadFixtureTable(originalVersion); + + // Calculate target version (next version up) + HoodieTableVersion targetVersion = getNextVersion(originalVersion); + if (targetVersion == null) { + LOG.info("Skipping auto-upgrade test for version {} (no higher version available)", originalVersion); + return; + } + + // Create write config with auto-upgrade disabled + HoodieWriteConfig config = createWriteConfig(originalMetaClient, false); + + // Attempt upgrade with auto-upgrade disabled + new UpgradeDowngrade(originalMetaClient, config, context, SparkUpgradeDowngradeHelper.getInstance()) + .run(targetVersion, null); + + // Create fresh meta client to validate that version remained unchanged + HoodieTableMetaClient unchangedMetaClient = HoodieTableMetaClient.builder() + .setConf(storageConf.newInstance()) + .setBasePath(originalMetaClient.getBasePath()) + .build(); + assertEquals(originalVersion, unchangedMetaClient.getTableConfig().getTableVersion(), + "Table version should remain unchanged when auto-upgrade is disabled"); Review Comment: good point -- This is an automated message from the Apache Git Service. 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