alex-plekhanov commented on a change in pull request #6554: IGNITE-11073: Backup page store manager, initial URL: https://github.com/apache/ignite/pull/6554#discussion_r353168624
########## File path: modules/core/src/test/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/IgniteSnapshotManagerSelfTest.java ########## @@ -0,0 +1,661 @@ +/* + * 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.internal.processors.cache.persistence.snapshot; + +import java.io.File; +import java.io.IOException; +import java.io.Serializable; +import java.nio.ByteBuffer; +import java.nio.file.DirectoryStream; +import java.nio.file.FileSystems; +import java.nio.file.OpenOption; +import java.nio.file.Path; +import java.nio.file.PathMatcher; +import java.nio.file.Paths; +import java.util.Collections; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.Set; +import java.util.UUID; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.atomic.AtomicInteger; +import java.util.stream.Collectors; +import java.util.stream.Stream; +import org.apache.ignite.IgniteCheckedException; +import org.apache.ignite.IgniteDataStreamer; +import org.apache.ignite.IgniteException; +import org.apache.ignite.IgniteLogger; +import org.apache.ignite.binary.BinaryType; +import org.apache.ignite.cache.CacheAtomicityMode; +import org.apache.ignite.cache.CacheMode; +import org.apache.ignite.cache.CacheRebalanceMode; +import org.apache.ignite.cache.affinity.rendezvous.RendezvousAffinityFunction; +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.IgniteInternalFuture; +import org.apache.ignite.internal.IgniteInterruptedCheckedException; +import org.apache.ignite.internal.pagemem.PageIdAllocator; +import org.apache.ignite.internal.processors.cache.distributed.dht.topology.GridDhtPartitionState; +import org.apache.ignite.internal.processors.cache.persistence.CheckpointFuture; +import org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager; +import org.apache.ignite.internal.processors.cache.persistence.file.FileIO; +import org.apache.ignite.internal.processors.cache.persistence.file.FileIODecorator; +import org.apache.ignite.internal.processors.cache.persistence.file.FileIOFactory; +import org.apache.ignite.internal.processors.cache.persistence.file.FilePageStoreManager; +import org.apache.ignite.internal.processors.cache.persistence.file.RandomAccessFileIOFactory; +import org.apache.ignite.internal.processors.cache.persistence.partstate.GroupPartitionId; +import org.apache.ignite.internal.processors.cache.persistence.wal.FileWriteAheadLogManager; +import org.apache.ignite.internal.processors.cache.persistence.wal.crc.FastCrc; +import org.apache.ignite.internal.processors.marshaller.MappedName; +import org.apache.ignite.internal.util.GridIntList; +import org.apache.ignite.internal.util.IgniteUtils; +import org.apache.ignite.internal.util.typedef.internal.CU; +import org.apache.ignite.internal.util.typedef.internal.U; +import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest; +import org.junit.After; +import org.junit.Before; +import org.junit.Test; + +import static java.nio.file.Files.newDirectoryStream; +import static org.apache.ignite.internal.processors.cache.persistence.file.FilePageStoreManager.FILE_SUFFIX; +import static org.apache.ignite.internal.processors.cache.persistence.file.FilePageStoreManager.PART_FILE_PREFIX; +import static org.apache.ignite.internal.processors.cache.persistence.file.FilePageStoreManager.cacheDirName; +import static org.apache.ignite.internal.processors.cache.persistence.file.FilePageStoreManager.cacheWorkDir; +import static org.apache.ignite.internal.processors.cache.persistence.snapshot.IgniteSnapshotManager.DELTA_SUFFIX; + +/** + * TODO backup must fail in case of parallel cache stop operation + */ +public class IgniteSnapshotManagerSelfTest extends GridCommonAbstractTest { + /** */ + private static final FileIOFactory DFLT_IO_FACTORY = new RandomAccessFileIOFactory(); + + /** */ + private static final String SNAPSHOT_NAME = "testSnapshot"; + + /** */ + private static final int CACHE_PARTS_COUNT = 8; + + /** */ + private static final int PAGE_SIZE = 1024; + + /** */ + private static final int CACHE_KEYS_RANGE = 1024; + + /** */ + private static final PathMatcher DELTA_FILE_MATCHER = + FileSystems.getDefault().getPathMatcher("glob:**" + DELTA_SUFFIX); + + /** */ + private static final DataStorageConfiguration memCfg = new DataStorageConfiguration() + .setDefaultDataRegionConfiguration(new DataRegionConfiguration() + .setMaxSize(100L * 1024 * 1024) + .setPersistenceEnabled(true)) + .setPageSize(PAGE_SIZE) + .setWalMode(WALMode.LOG_ONLY); + + /** */ + private CacheConfiguration<Integer, Integer> defaultCacheCfg = + new CacheConfiguration<Integer, Integer>(DEFAULT_CACHE_NAME) + .setCacheMode(CacheMode.PARTITIONED) + .setRebalanceMode(CacheRebalanceMode.ASYNC) + .setAtomicityMode(CacheAtomicityMode.TRANSACTIONAL) + .setAffinity(new RendezvousAffinityFunction(false) + .setPartitions(CACHE_PARTS_COUNT)); + + /** + * Calculate CRC for all partition files of specified cache. + * + * @param cacheDir Cache directory to iterate over partition files. + * @return The map of [fileName, checksum]. + * @throws IgniteCheckedException If fails. + */ + private static Map<String, Integer> calculateCRC32Partitions(File cacheDir) throws IgniteCheckedException { + assert cacheDir.isDirectory() : cacheDir.getAbsolutePath(); + + Map<String, Integer> result = new HashMap<>(); + + try { + try (DirectoryStream<Path> partFiles = newDirectoryStream(cacheDir.toPath(), + p -> p.toFile().getName().startsWith(PART_FILE_PREFIX) && p.toFile().getName().endsWith(FILE_SUFFIX)) + ) { + for (Path path : partFiles) + result.put(path.toFile().getName(), FastCrc.calcCrc(path.toFile())); + } + + return result; + } + catch (IOException e) { + throw new IgniteCheckedException(e); + } + } + + /** */ + @Before + public void beforeTestSnapshot() throws Exception { + cleanPersistenceDir(); + } + + /** */ + @After + public void afterTestSnapshot() throws Exception { + stopAllGrids(); + } + + /** {@inheritDoc} */ + @Override protected IgniteConfiguration getConfiguration(String igniteInstanceName) throws Exception { + return super.getConfiguration(igniteInstanceName) + .setConsistentId(igniteInstanceName) + .setDataStorageConfiguration(memCfg) + .setCacheConfiguration(defaultCacheCfg); + } + + /** + * + */ + @Test + public void testSnapshotLocalPartitions() throws Exception { + // Start grid node with data before each test. + IgniteEx ig = startGridWithCache(defaultCacheCfg, CACHE_KEYS_RANGE); + + for (int i = CACHE_KEYS_RANGE; i < 2048; i++) + ig.cache(DEFAULT_CACHE_NAME).put(i, i); + + try (IgniteDataStreamer<Integer, TestOrderItem> ds = ig.dataStreamer(DEFAULT_CACHE_NAME)) { + for (int i = 0; i < 2048; i++) + ds.addData(i, new TestOrderItem(i, i)); + } + + try (IgniteDataStreamer<Integer, TestOrderItem> ds = ig.dataStreamer(DEFAULT_CACHE_NAME)) { + for (int i = 0; i < 2048; i++) + ds.addData(i, new TestOrderItem(i, i) { + @Override public String toString() { + return "_" + super.toString(); + } + }); + } + + IgniteSnapshotManager mgr = ig.context() + .cache() + .context() + .snapshotMgr(); + + IgniteInternalFuture<?> snpFut = mgr.createLocalSnapshot(SNAPSHOT_NAME, + Collections.singletonList(CU.cacheId(DEFAULT_CACHE_NAME))); + + snpFut.get(); + + File cacheWorkDir = ((FilePageStoreManager)ig.context() + .cache() + .context() + .pageStore()) + .cacheWorkDir(defaultCacheCfg); + + // Calculate CRCs + final Map<String, Integer> origParts = calculateCRC32Partitions(cacheWorkDir); Review comment: Checkpoint process can start in background, it's not safe to read partitions without disabling checkpoints. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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