alex-plekhanov commented on code in PR #11758: URL: https://github.com/apache/ignite/pull/11758#discussion_r1898327211
########## modules/core/src/main/java/org/apache/ignite/internal/processors/cache/distributed/dht/topology/PartitionReservationManager.java: ########## @@ -0,0 +1,441 @@ +/* + * 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.distributed.dht.topology; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.List; +import java.util.UUID; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.ConcurrentMap; +import org.apache.ignite.IgniteCheckedException; +import org.apache.ignite.IgniteLogger; +import org.apache.ignite.failure.FailureContext; +import org.apache.ignite.internal.GridKernalContext; +import org.apache.ignite.internal.managers.communication.GridIoPolicy; +import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion; +import org.apache.ignite.internal.processors.cache.CacheInvalidStateException; +import org.apache.ignite.internal.processors.cache.GridCacheContext; +import org.apache.ignite.internal.processors.cache.distributed.dht.GridReservable; +import org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture; +import org.apache.ignite.internal.processors.cache.distributed.dht.preloader.PartitionsExchangeAware; +import org.apache.ignite.internal.processors.tracing.MTC; +import org.apache.ignite.internal.processors.tracing.MTC.TraceSurroundings; +import org.apache.ignite.internal.util.lang.GridPlainRunnable; +import org.apache.ignite.internal.util.typedef.CI1; +import org.apache.ignite.internal.util.typedef.F; +import org.jetbrains.annotations.Nullable; + +import static org.apache.ignite.failure.FailureType.CRITICAL_ERROR; +import static org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion.NONE; +import static org.apache.ignite.internal.processors.cache.distributed.dht.topology.GridDhtPartitionState.LOST; +import static org.apache.ignite.internal.processors.cache.distributed.dht.topology.GridDhtPartitionState.OWNING; +import static org.apache.ignite.internal.processors.tracing.SpanType.SQL_PARTITIONS_RESERVE; + +/** + * Class responsible for partition reservation for queries executed on local node. Prevents partitions from being + * evicted from node during query execution. + */ +public class PartitionReservationManager implements PartitionsExchangeAware { + /** Special instance of reservable object for REPLICATED caches. */ + private static final ReplicatedReservable REPLICATED_RESERVABLE = new ReplicatedReservable(); + + /** Kernal context. */ + private final GridKernalContext ctx; + + /** + * Group reservations cache. When affinity version is not changed and all primary partitions must be reserved we get + * group reservation from this map instead of create new reservation group. + */ + private final ConcurrentMap<PartitionReservationKey, GridReservable> reservations = new ConcurrentHashMap<>(); + + /** Logger. */ + private final IgniteLogger log; + + /** + * Constructor. + * + * @param ctx Context. + */ + public PartitionReservationManager(GridKernalContext ctx) { + this.ctx = ctx; + + log = ctx.log(PartitionReservationManager.class); + + ctx.cache().context().exchange().registerExchangeAwareComponent(this); + } + + /** + * @param top Partition topology. + * @param p Partition ID. Review Comment: Done -- 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: notifications-unsubscr...@ignite.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
