nizhikov commented on code in PR #11044: URL: https://github.com/apache/ignite/pull/11044#discussion_r1404111751
########## modules/core/src/test/java/org/apache/ignite/cdc/CdcManagerTest.java: ########## @@ -0,0 +1,429 @@ +/* + * 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.ignite.cdc; + +import java.io.File; +import java.io.Serializable; +import java.nio.ByteBuffer; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.Arrays; +import java.util.List; +import java.util.stream.Collectors; +import org.apache.ignite.cluster.ClusterState; +import org.apache.ignite.configuration.CacheConfiguration; +import org.apache.ignite.configuration.DataRegionConfiguration; +import org.apache.ignite.configuration.DataStorageConfiguration; +import org.apache.ignite.configuration.IgniteConfiguration; +import org.apache.ignite.configuration.WALMode; +import org.apache.ignite.internal.IgniteEx; +import org.apache.ignite.internal.cdc.CdcManager; +import org.apache.ignite.internal.cdc.CdcUtilityActiveCdcManager; +import org.apache.ignite.internal.pagemem.wal.WALIterator; +import org.apache.ignite.internal.pagemem.wal.record.CheckpointRecord; +import org.apache.ignite.internal.pagemem.wal.record.RolloverType; +import org.apache.ignite.internal.processors.cache.GridCacheSharedManagerAdapter; +import org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager; +import org.apache.ignite.internal.processors.cache.persistence.IgniteCacheDatabaseSharedManager; +import org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager; +import org.apache.ignite.internal.processors.cache.persistence.wal.reader.IgniteWalIteratorFactory; +import org.apache.ignite.internal.processors.configuration.distributed.DistributedChangeableProperty; +import org.apache.ignite.internal.util.typedef.internal.U; +import org.apache.ignite.plugin.AbstractTestPluginProvider; +import org.apache.ignite.plugin.PluginContext; +import org.apache.ignite.testframework.GridTestUtils; +import org.apache.ignite.testframework.ListeningTestLogger; +import org.apache.ignite.testframework.LogListener; +import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest; +import org.jetbrains.annotations.Nullable; +import org.junit.Test; +import org.junit.runner.RunWith; +import org.junit.runners.Parameterized; + +import static org.apache.ignite.cdc.CdcManagerTest.TestCdcManager.cdcMgr; + +/** */ +@RunWith(Parameterized.class) +public class CdcManagerTest extends GridCommonAbstractTest { + /** */ + private static final int WAL_SEG_SIZE = 64 * (int)U.MB; + + /** */ + private IgniteEx ign; + + /** */ + private TestCdcManager cdcMgr; + + /** */ + private FileWriteAheadLogManager walMgr; + + /** */ + private ListeningTestLogger lsnrLog; + + /** */ + private WALMode walMode; + + /** */ + private static volatile boolean failCollect; + + /** */ + @Parameterized.Parameter + public boolean persistentEnabled; + + /** */ + @Parameterized.Parameters(name = "persistentEnabled={0}") + public static Object[] params() { + return new Object[] {false, true}; + } + + /** {@inheritDoc} */ + @Override protected IgniteConfiguration getConfiguration(String instanceName) throws Exception { + IgniteConfiguration cfg = super.getConfiguration(instanceName); + + cfg.setDataStorageConfiguration(new DataStorageConfiguration() + .setDefaultDataRegionConfiguration(new DataRegionConfiguration() + .setPersistenceEnabled(persistentEnabled) + .setCdcEnabled(true)) + .setWalMode(walMode) + .setWalSegmentSize(WAL_SEG_SIZE)); + + cfg.setPluginProviders(new CdcManagerPluginProvider()); + + cfg.setCacheConfiguration(new CacheConfiguration<>(DEFAULT_CACHE_NAME)); + + cfg.setGridLogger(lsnrLog); + + return cfg; + } + + /** {@inheritDoc} */ + @Override protected void beforeTest() throws Exception { + cleanPersistenceDir(); + + lsnrLog = new ListeningTestLogger(log); + + ign = startGrid(0); + + ign.cluster().state(ClusterState.ACTIVE); + + cdcMgr = cdcMgr(ign); + walMgr = (FileWriteAheadLogManager)ign.context().cache().context().wal(true); + } + + /** {@inheritDoc} */ + @Override protected void afterTest() throws Exception { + stopAllGrids(); + + cleanPersistenceDir(); + + failCollect = false; + } + + /** */ + @Test + public void testDisableByProperty() throws Exception { + assertFalse(cdcMgr(ign).stopped()); + + DistributedChangeableProperty<Serializable> cdcDisableProp = ign.context().distributedConfiguration() + .property(FileWriteAheadLogManager.CDC_DISABLED); + + cdcDisableProp.localUpdate(true); + + assertTrue(GridTestUtils.waitForCondition(() -> cdcMgr(ign).stopped(), 10_000, 10)); + } + + /** */ + @Test + public void testSingleSegmentContent() throws Exception { + for (int i = 0; i < 10_000; i++) + ign.cache(DEFAULT_CACHE_NAME).put(i, i); + + assertEquals(0, walMgr.currentSegment()); + + File walDir = walDir(ign); + + stopGrid(0); + + Path seg = Arrays.stream(walDir.listFiles()).sorted().findFirst().get().toPath(); + + ByteBuffer walBuf = ByteBuffer.wrap(Files.readAllBytes(seg)); + ByteBuffer cdcBuf = ByteBuffer.wrap(cdcMgr(ign).buf.array()); + cdcBuf.limit(WAL_SEG_SIZE); + + assertEquals(0, walBuf.compareTo(cdcBuf)); + } + + /** */ + @Test + public void testMultipleSegmentContent() throws Exception { + checkCdcContentWithRollover(() -> { + for (int i = 0; i < Integer.MAX_VALUE; i++) { + ign.cache(DEFAULT_CACHE_NAME).put(i, i); + + if (walMgr.currentSegment() > 0) + break; + } + }); + } + + /** */ + @Test + public void testMultipleSegmentContentWithForceNextSegmentRollover() throws Exception { + checkMultipleSegmentContentWithForceRollover(RolloverType.NEXT_SEGMENT); + } + + /** */ + @Test + public void testMultipleSegmentContentWithForceCurrentSegmentRollover() throws Exception { + checkMultipleSegmentContentWithForceRollover(RolloverType.CURRENT_SEGMENT); + } + + /** */ + @Test + public void testRestartNode() throws Exception { + for (int i = 0; i < 100; i++) + ign.cache(DEFAULT_CACHE_NAME).put(i, i); + + stopGrid(0); + + File seg = Arrays.stream(walDir(ign).listFiles()).sorted().findFirst().get(); + int len0 = writtenLength(seg); + + ByteBuffer buf0 = cdcMgr.buf; + + ign = startGrid(0); + cdcMgr = cdcMgr(ign); + + for (int i = 0; i < 100; i++) + ign.cache(DEFAULT_CACHE_NAME).put(i, i); + + stopGrid(0); + + int len1 = writtenLength(seg); + + // Check CDC buffer content on first start. + ByteBuffer walBuf = ByteBuffer.wrap(Files.readAllBytes(seg.toPath())); + walBuf.limit(len0); + + ByteBuffer cdcBuf = ByteBuffer.wrap(buf0.array()); + cdcBuf.limit(len0); + + assertEquals(0, walBuf.compareTo(cdcBuf)); + + // Check CDC buffer content on second start. + walBuf.limit(len1); + walBuf.position(len0); + + cdcBuf = ByteBuffer.wrap(cdcMgr.buf.array()); + cdcBuf.limit(len1 - len0); + + assertEquals(0, walBuf.compareTo(cdcBuf)); + } + + /** */ + @Test + public void testProhibitedWalModes() throws Exception { + for (WALMode m: WALMode.values()) { + stopGrid(0); + cleanPersistenceDir(); + + walMode = m; + + boolean cdcStart = m == WALMode.LOG_ONLY; + + LogListener cdcWarnLsnr = LogListener + .matches("Custom CdcManager is only supported for WALMode.LOG_ONLY") + .times(cdcStart ? 0 : 1) + .build(); + + lsnrLog.registerListener(cdcWarnLsnr); + + IgniteEx ign = startGrid(0); + + assertTrue(m.toString(), cdcWarnLsnr.check()); + + if (cdcStart) + assertTrue(cdcMgr(ign) instanceof TestCdcManager); + else + assertTrue(ign.context().cache().context().cdc() instanceof CdcUtilityActiveCdcManager); + } + } + + /** */ + @Test + public void testCollectFailedIgnored() throws Exception { + LogListener cdcErrLsnr = LogListener + .matches("Error happened during CDC data collection.") + .atLeast(1) + .build(); + + lsnrLog.registerListener(cdcErrLsnr); + + failCollect = true; + + ign.cache(DEFAULT_CACHE_NAME).put(0, 0); + + assertTrue(GridTestUtils.waitForCondition(cdcErrLsnr::check, 10_000, 10)); + + assertEquals(0, ign.cache(DEFAULT_CACHE_NAME).get(0)); + } + + /** */ + public void checkMultipleSegmentContentWithForceRollover(RolloverType rollType) throws Exception { + checkCdcContentWithRollover(() -> { + if (persistentEnabled) + dbMgr(ign).checkpointReadLock(); + + try { + walMgr.log(new CheckpointRecord(null), rollType); + } + catch (Exception e) { + // No-op. + } + finally { + if (persistentEnabled) + dbMgr(ign).checkpointReadUnlock(); + } + }); + } + + /** */ + public void checkCdcContentWithRollover(Runnable rollSegment) throws Exception { + for (int i = 0; i < 10_000; i++) + ign.cache(DEFAULT_CACHE_NAME).put(i, i); + + rollSegment.run(); + + for (int i = 0; i < 10_000; i++) + ign.cache(DEFAULT_CACHE_NAME).put(i, i); + + File walDir = walDir(ign); + + stopGrid(0); + + List<File> segs = Arrays.stream(walDir.listFiles()).sorted() + .limit(2) + .collect(Collectors.toList()); + + int firstSegActLen = writtenLength(segs.get(0)); + + ByteBuffer walBuf = ByteBuffer.wrap(Files.readAllBytes(segs.get(0).toPath())); + ByteBuffer cdcBuf = ByteBuffer.wrap(cdcMgr.buf.array()); + walBuf.limit(firstSegActLen); + cdcBuf.limit(firstSegActLen); + + assertEquals(0, walBuf.compareTo(cdcBuf)); + + walBuf = ByteBuffer.wrap(Files.readAllBytes(segs.get(1).toPath())); + cdcBuf = ByteBuffer.wrap(cdcMgr.buf.array()); + cdcBuf.position(firstSegActLen + 1); + cdcBuf.limit(firstSegActLen + 1 + WAL_SEG_SIZE); + + assertEquals(0, walBuf.compareTo(cdcBuf)); + } + + /** Get WAL directory. */ + private File walDir(IgniteEx ign) throws Exception { + return new File( + U.resolveWorkDirectory( + ign.configuration().getWorkDirectory(), + DataStorageConfiguration.DFLT_WAL_PATH, + false), + ign.context().pdsFolderResolver().resolveFolders().folderName()); + } + + /** @return Length of the all written records in the specified segment. */ + private int writtenLength(File walSegment) throws Exception { + IgniteWalIteratorFactory factory = new IgniteWalIteratorFactory(log); + + IgniteWalIteratorFactory.IteratorParametersBuilder params = new IgniteWalIteratorFactory.IteratorParametersBuilder() + .filesOrDirs(walSegment); + + try (WALIterator walIt = factory.iterator(params)) { + while (walIt.hasNext()) + walIt.next(); + + return walIt.lastRead().get().next().fileOffset(); + } + } + + /** */ + private static class CdcManagerPluginProvider extends AbstractTestPluginProvider { + /** {@inheritDoc} */ + @Override public String name() { + return "CdcManagerPluginProvider"; + } + + /** {@inheritDoc} */ + @Override public <T> @Nullable T createComponent(PluginContext ctx, Class<T> cls) { + if (CdcManager.class.equals(cls)) + return (T)new TestCdcManager(); + + return null; + } + } + + /** Test {@link CdcManager} for testing WAL fsync guarantees. */ + protected static class TestCdcManager extends GridCacheSharedManagerAdapter implements CdcManager { + /** Buffer to store collected data. */ + private final ByteBuffer buf; + + /** */ + TestCdcManager() { + buf = ByteBuffer.allocate(2 * WAL_SEG_SIZE); + + Arrays.fill(buf.array(), (byte)0); + + buf.position(0); + } + + /** */ + public boolean stopped() { Review Comment: Can we use, `enabled` method with the same implementation instead of explicit `stopped` method? ``` /** {@inheritDoc} */ @Override public boolean enabled() { return isStopping(); } ``` -- This is an automated message from the Apache Git Service. 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