tkalkirill commented on code in PR #2676: URL: https://github.com/apache/ignite-3/pull/2676#discussion_r1360164767
########## modules/index/src/main/java/org/apache/ignite/internal/index/IndexAvailabilityController.java: ########## @@ -0,0 +1,327 @@ +/* + * 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.index; + +import static java.nio.charset.StandardCharsets.UTF_8; +import static java.util.concurrent.CompletableFuture.completedFuture; +import static java.util.concurrent.CompletableFuture.failedFuture; +import static java.util.function.Predicate.not; +import static java.util.stream.Collectors.toList; +import static org.apache.ignite.internal.catalog.CatalogService.DEFAULT_SCHEMA_NAME; +import static org.apache.ignite.internal.metastorage.dsl.Conditions.exists; +import static org.apache.ignite.internal.metastorage.dsl.Conditions.notExists; +import static org.apache.ignite.internal.metastorage.dsl.Operations.noop; +import static org.apache.ignite.internal.metastorage.dsl.Operations.put; +import static org.apache.ignite.internal.metastorage.dsl.Operations.remove; +import static org.apache.ignite.internal.util.ArrayUtils.BYTE_EMPTY_ARRAY; +import static org.apache.ignite.internal.util.CollectionUtils.concat; +import static org.apache.ignite.internal.util.IgniteUtils.inBusyLock; +import static org.apache.ignite.internal.util.IgniteUtils.inBusyLockAsync; + +import java.util.Collection; +import java.util.List; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.stream.IntStream; +import org.apache.ignite.internal.catalog.CatalogCommand; +import org.apache.ignite.internal.catalog.CatalogManager; +import org.apache.ignite.internal.catalog.CatalogService; +import org.apache.ignite.internal.catalog.commands.MakeIndexAvailableCommand; +import org.apache.ignite.internal.catalog.descriptors.CatalogIndexDescriptor; +import org.apache.ignite.internal.catalog.descriptors.CatalogTableDescriptor; +import org.apache.ignite.internal.catalog.descriptors.CatalogZoneDescriptor; +import org.apache.ignite.internal.catalog.events.CatalogEvent; +import org.apache.ignite.internal.catalog.events.CreateIndexEventParameters; +import org.apache.ignite.internal.catalog.events.DropIndexEventParameters; +import org.apache.ignite.internal.catalog.events.MakeIndexAvailableEventParameters; +import org.apache.ignite.internal.close.ManuallyCloseable; +import org.apache.ignite.internal.lang.ByteArray; +import org.apache.ignite.internal.logger.IgniteLogger; +import org.apache.ignite.internal.logger.Loggers; +import org.apache.ignite.internal.metastorage.Entry; +import org.apache.ignite.internal.metastorage.MetaStorageManager; +import org.apache.ignite.internal.metastorage.WatchEvent; +import org.apache.ignite.internal.metastorage.WatchListener; +import org.apache.ignite.internal.metastorage.dsl.Operation; +import org.apache.ignite.internal.metastorage.dsl.Operations; +import org.apache.ignite.internal.table.distributed.index.IndexBuildCompletionListener; +import org.apache.ignite.internal.table.distributed.index.IndexBuilder; +import org.apache.ignite.internal.util.Cursor; +import org.apache.ignite.internal.util.IgniteSpinBusyLock; + +/** + * Component is responsible for ensuring that the index, upon completion of the distributed index building for all partitions, becomes + * available for read-write. + * + * <p>An approximate algorithm for making an index available for read-write:</p> + * <ul> + * <li>On {@link CatalogEvent#INDEX_CREATE}, keys are created in the metastore: {@code startBuildIndex.<indexId>} and + * {@code partitionBuildIndex.<indexId>.<partitionId_0>}...{@code partitionBuildIndex.<indexId>.<partitionId_N>}.</li> + * <li>Then it is expected that the distributed index building event will be triggered for all partitions via + * {@link IndexBuildCompletionListener} (from {@link IndexBuilder#listen}); as a result of each of these events, the corresponding key + * {@code partitionBuildIndex.<indexId>.<partitionId>} will be deleted from metastore.</li> + * <li>When all the {@code partitionBuildIndex.<indexId>.<partitionId>} keys in the metastore are deleted, + * {@link MakeIndexAvailableCommand} will be executed for the corresponding index.</li> + * <li>At {@link CatalogEvent#INDEX_AVAILABLE}, key {@code startBuildIndex.<indexId>} in the metastore will be deleted.</li> + * </ul> + * + * <p>Notes: At {@link CatalogEvent#INDEX_DROP}, the keys in the metastore are deleted: {@code startBuildIndex.<indexId>} and + * {@code partitionBuildIndex.<indexId>.<partitionId_0>}...{@code partitionBuildIndex.<indexId>.<partitionId_N>}.</p> + * + * @see CatalogIndexDescriptor#writeOnly() + */ +// TODO: IGNITE-20637 Recovery needs to be implemented +// TODO: IGNITE-20637 Need integration with the IgniteImpl +public class IndexAvailabilityController implements ManuallyCloseable { Review Comment: try fix it -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
