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_r393148310
########## File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/SnapshotFutureTask.java ########## @@ -0,0 +1,884 @@ +/* + * 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.Closeable; +import java.io.File; +import java.io.IOException; +import java.nio.ByteBuffer; +import java.nio.ByteOrder; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.Set; +import java.util.UUID; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.ExecutionException; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicIntegerArray; +import java.util.concurrent.atomic.AtomicReference; +import java.util.concurrent.locks.ReadWriteLock; +import java.util.concurrent.locks.ReentrantReadWriteLock; +import java.util.function.BooleanSupplier; +import java.util.function.Consumer; +import org.apache.ignite.IgniteCheckedException; +import org.apache.ignite.IgniteLogger; +import org.apache.ignite.binary.BinaryType; +import org.apache.ignite.configuration.CacheConfiguration; +import org.apache.ignite.internal.pagemem.PageIdUtils; +import org.apache.ignite.internal.pagemem.store.PageStore; +import org.apache.ignite.internal.pagemem.store.PageWriteListener; +import org.apache.ignite.internal.processors.cache.CacheGroupContext; +import org.apache.ignite.internal.processors.cache.GridCacheSharedContext; +import org.apache.ignite.internal.processors.cache.distributed.dht.topology.GridDhtLocalPartition; +import org.apache.ignite.internal.processors.cache.distributed.dht.topology.GridDhtPartitionState; +import org.apache.ignite.internal.processors.cache.distributed.dht.topology.GridDhtPartitionTopology; +import org.apache.ignite.internal.processors.cache.persistence.DbCheckpointListener; +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.FileIOFactory; +import org.apache.ignite.internal.processors.cache.persistence.file.FilePageStoreManager; +import org.apache.ignite.internal.processors.cache.persistence.partstate.GroupPartitionId; +import org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO; +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.future.GridFutureAdapter; +import org.apache.ignite.internal.util.lang.IgniteThrowableRunner; +import org.apache.ignite.internal.util.tostring.GridToStringExclude; +import org.apache.ignite.internal.util.typedef.F; +import org.apache.ignite.internal.util.typedef.internal.A; +import org.apache.ignite.internal.util.typedef.internal.CU; +import org.apache.ignite.internal.util.typedef.internal.S; +import org.apache.ignite.internal.util.typedef.internal.U; + +import static org.apache.ignite.internal.pagemem.PageIdAllocator.INDEX_PARTITION; +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.file.FilePageStoreManager.getPartitionFile; +import static org.apache.ignite.internal.processors.cache.persistence.snapshot.IgniteSnapshotManager.partDeltaFile; +import static org.apache.ignite.internal.processors.cache.persistence.snapshot.IgniteSnapshotManager.relativeNodePath; + +/** + * + */ +class SnapshotFutureTask extends GridFutureAdapter<Boolean> implements DbCheckpointListener { + /** Shared context. */ + private final GridCacheSharedContext<?, ?> cctx; + + /** Ignite logger */ + private final IgniteLogger log; + + /** Node id which cause snapshot operation. */ + private final UUID srcNodeId; + + /** Unique identifier of snapshot process. */ + private final String snpName; + + /** Snapshot working directory on file system. */ + private final File tmpTaskWorkDir; + + /** Local buffer to perpform copy-on-write operations for {@link PageStoreSerialWriter}. */ + private final ThreadLocal<ByteBuffer> localBuff; + + /** IO factory which will be used for creating snapshot delta-writers. */ + private final FileIOFactory ioFactory; + + /** + * The length of file size per each cache partiton file. + * Partition has value greater than zero only for partitons in OWNING state. + * Information collected under checkpoint write lock. + */ + private final Map<GroupPartitionId, Long> partFileLengths = new HashMap<>(); + + /** + * Map of partitions to snapshot and theirs corresponding delta PageStores. + * Writers are pinned to the snapshot context due to controlling partition + * processing supplier. + */ + private final Map<GroupPartitionId, PageStoreSerialWriter> partDeltaWriters = new HashMap<>(); + + /** Snapshot data sender. */ + @GridToStringExclude + private final SnapshotFileSender snpSndr; + + /** + * Initial map of cache groups and its partitions to include into snapshot. If array of partitions + * is {@code null} than all OWNING partitions for given cache groups will be included into snapshot. + * In this case if all of partitions have OWNING state the index partition also will be included. + * <p> + * If partitions for particular cache group are not provided that they will be collected and added + * on checkpoint under the write lock. + */ + private final Map<Integer, Set<Integer>> parts; + + /** Cache group and corresponding partitions collected under the checkpoint write lock. */ + private final Map<Integer, Set<Integer>> processed = new HashMap<>(); + + /** Checkpoint end future. */ + private final CompletableFuture<Boolean> cpEndFut = new CompletableFuture<>(); + + /** Future to wait until checkpoint mark pahse will be finished and snapshot tasks scheduled. */ + private final GridFutureAdapter<Void> startedFut = new GridFutureAdapter<>(); + + /** Absolute snapshot storage path. */ + private File tmpSnpDir; + + /** {@code true} if operation has been cancelled. */ + private volatile boolean cancelled; + + /** An exception which has been ocurred during snapshot processing. */ + private final AtomicReference<Throwable> err = new AtomicReference<>(); + + /** Flag indicates that task already scheduled on checkpoint. */ + private final AtomicBoolean started = new AtomicBoolean(); + + /** Flag indicates the task must be interrupted. */ + private final BooleanSupplier stopping = () -> cancelled || err.get() != null; + + /** + * @param e Finished snapshot tosk future with particular exception. + */ + public SnapshotFutureTask(IgniteCheckedException e) { + A.notNull(e, "Exception for a finished snapshot task must be not null"); + + cctx = null; + log = null; + snpName = null; + srcNodeId = null; + tmpTaskWorkDir = null; + snpSndr = null; + + err.set(e); + startedFut.onDone(e); + onDone(e); + parts = null; + ioFactory = null; + localBuff = null; + } + + /** + * @param snpName Unique identifier of snapshot task. + * @param ioFactory Factory to working with delta as file storage. + * @param parts Map of cache groups and its partitions to include into snapshot, if array of partitions + * is {@code null} than all OWNING partitions for given cache groups will be included into snapshot. + */ + public SnapshotFutureTask( + GridCacheSharedContext<?, ?> cctx, + UUID srcNodeId, + String snpName, + File tmpWorkDir, + FileIOFactory ioFactory, + SnapshotFileSender snpSndr, + Map<Integer, Set<Integer>> parts, + ThreadLocal<ByteBuffer> localBuff + ) { + A.notNull(snpName, "Snapshot name cannot be empty or null"); + A.notNull(snpSndr, "Snapshot sender which handles execution tasks must be not null"); + A.notNull(snpSndr.executor(), "Executor service must be not null"); + + this.parts = parts; + this.cctx = cctx; + this.log = cctx.logger(SnapshotFutureTask.class); + this.snpName = snpName; + this.srcNodeId = srcNodeId; + this.tmpTaskWorkDir = new File(tmpWorkDir, snpName); + this.snpSndr = snpSndr; + this.ioFactory = ioFactory; + this.localBuff = localBuff; + } + + /** + * @return Node id which triggers this operation.. Review comment: Redundant point ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
