| /* |
| * 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; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.Queue; |
| import java.util.UUID; |
| import java.util.concurrent.atomic.AtomicLong; |
| import java.util.concurrent.atomic.AtomicReference; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.IgniteLogger; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.apache.ignite.internal.IgniteNeedReconnectException; |
| import org.apache.ignite.internal.cluster.ClusterTopologyCheckedException; |
| import org.apache.ignite.internal.cluster.NodeOrderComparator; |
| import org.apache.ignite.internal.managers.discovery.DiscoCache; |
| import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion; |
| import org.apache.ignite.internal.processors.cache.GridCacheSharedContext; |
| import org.apache.ignite.internal.util.future.GridFutureAdapter; |
| import org.apache.ignite.internal.util.tostring.GridToStringInclude; |
| import org.apache.ignite.internal.util.typedef.X; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.jetbrains.annotations.Nullable; |
| |
| import static org.apache.ignite.internal.managers.communication.GridIoPolicy.AFFINITY_POOL; |
| |
| /** |
| * Future that fetches affinity assignment from remote cache nodes. |
| */ |
| public class GridDhtAssignmentFetchFuture extends GridFutureAdapter<GridDhtAffinityAssignmentResponse> { |
| /** Logger reference. */ |
| private static final AtomicReference<IgniteLogger> logRef = new AtomicReference<>(); |
| |
| /** Logger. */ |
| private static IgniteLogger log; |
| |
| /** */ |
| private static final AtomicLong idGen = new AtomicLong(); |
| |
| /** */ |
| private final GridCacheSharedContext ctx; |
| |
| /** List of available nodes this future can fetch data from. */ |
| @GridToStringInclude |
| private Queue<ClusterNode> availableNodes; |
| |
| /** Pending node from which response is being awaited. */ |
| private ClusterNode pendingNode; |
| |
| /** */ |
| private final long id; |
| |
| /** */ |
| private final AffinityTopologyVersion topVer; |
| |
| /** */ |
| private final int grpId; |
| |
| /** */ |
| private boolean needPartState; |
| |
| /** |
| * @param ctx Context. |
| * @param grpId Group ID. |
| * @param topVer Topology version. |
| * @param discoCache Discovery cache. |
| */ |
| public GridDhtAssignmentFetchFuture( |
| GridCacheSharedContext ctx, |
| int grpId, |
| AffinityTopologyVersion topVer, |
| DiscoCache discoCache |
| ) { |
| this.topVer = topVer; |
| this.grpId = grpId; |
| this.ctx = ctx; |
| |
| id = idGen.getAndIncrement(); |
| |
| Collection<ClusterNode> availableNodes = discoCache.cacheGroupAffinityNodes(grpId); |
| |
| LinkedList<ClusterNode> tmp = new LinkedList<>(); |
| |
| for (ClusterNode node : availableNodes) { |
| if (!node.isLocal() && ctx.discovery().alive(node)) |
| tmp.add(node); |
| } |
| |
| Collections.sort(tmp, NodeOrderComparator.getInstance()); |
| |
| this.availableNodes = tmp; |
| |
| if (log == null) |
| log = U.logger(ctx.kernalContext(), logRef, GridDhtAssignmentFetchFuture.class); |
| } |
| |
| /** |
| * @return Cache group ID. |
| */ |
| public int groupId() { |
| return grpId; |
| } |
| |
| /** |
| * @return Future ID. |
| */ |
| public long id() { |
| return id; |
| } |
| |
| /** |
| * Initializes fetch future. |
| * |
| * @param needPartState {@code True} if also need fetch partitions state. |
| */ |
| public void init(boolean needPartState) { |
| this.needPartState = needPartState; |
| |
| ctx.affinity().addDhtAssignmentFetchFuture(this); |
| |
| requestFromNextNode(); |
| } |
| |
| /** |
| * @param nodeId Node ID. |
| * @param res Response. |
| */ |
| public void onResponse(UUID nodeId, GridDhtAffinityAssignmentResponse res) { |
| GridDhtAffinityAssignmentResponse res0 = null; |
| |
| synchronized (this) { |
| if (pendingNode != null && pendingNode.id().equals(nodeId)) |
| res0 = res; |
| } |
| |
| if (res0 != null) |
| onDone(res); |
| } |
| |
| /** |
| * @param leftNodeId Left node ID. |
| */ |
| public void onNodeLeft(UUID leftNodeId) { |
| synchronized (this) { |
| if (pendingNode != null && pendingNode.id().equals(leftNodeId)) { |
| availableNodes.remove(pendingNode); |
| |
| pendingNode = null; |
| } |
| } |
| |
| requestFromNextNode(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean onDone(@Nullable GridDhtAffinityAssignmentResponse res, @Nullable Throwable err) { |
| if (super.onDone(res, err)) { |
| ctx.affinity().removeDhtAssignmentFetchFuture(this); |
| |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Requests affinity from next node in the list. |
| */ |
| private void requestFromNextNode() { |
| boolean complete; |
| |
| // Avoid 'protected field is accessed in synchronized context' warning. |
| IgniteLogger log0 = log; |
| |
| synchronized (this) { |
| while (!availableNodes.isEmpty()) { |
| ClusterNode node = availableNodes.poll(); |
| |
| try { |
| if (log0.isDebugEnabled()) |
| log0.debug("Sending affinity fetch request to remote node [locNodeId=" + ctx.localNodeId() + |
| ", node=" + node + ']'); |
| |
| ctx.io().send(node, |
| new GridDhtAffinityAssignmentRequest(id, grpId, topVer, needPartState), |
| AFFINITY_POOL); |
| |
| // Close window for listener notification. |
| if (ctx.discovery().node(node.id()) == null) { |
| U.warn(log0, "Failed to request affinity assignment from remote node (node left grid, will " + |
| "continue to another node): " + node); |
| |
| continue; |
| } |
| |
| pendingNode = node; |
| |
| break; |
| } |
| catch (ClusterTopologyCheckedException ignored) { |
| U.warn(log0, "Failed to request affinity assignment from remote node (node left grid, will " + |
| "continue to another node): " + node); |
| } |
| catch (IgniteCheckedException e) { |
| if (ctx.discovery().reconnectSupported() && X.hasCause(e, IOException.class)) { |
| onDone(new IgniteNeedReconnectException(ctx.localNode(), e)); |
| |
| return; |
| } |
| |
| U.warn(log0, "Failed to request affinity assignment from remote node (will " + |
| "continue to another node): " + node); |
| } |
| } |
| |
| complete = pendingNode == null; |
| } |
| |
| // No more nodes left, complete future with null outside of synchronization. |
| // Affinity should be calculated from scratch. |
| if (complete) |
| onDone((GridDhtAffinityAssignmentResponse)null); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(GridDhtAssignmentFetchFuture.class, this); |
| } |
| } |