| /* |
| * 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; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.UUID; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.IgniteLogger; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.apache.ignite.compute.ComputeJob; |
| import org.apache.ignite.compute.ComputeJobResult; |
| import org.apache.ignite.compute.ComputeJobResultPolicy; |
| import org.apache.ignite.compute.ComputeTaskAdapter; |
| import org.apache.ignite.internal.processors.cache.GridCacheSharedContext; |
| import org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager; |
| import org.apache.ignite.internal.processors.cache.persistence.checkpoint.CheckpointEntry; |
| import org.apache.ignite.internal.processors.cache.persistence.checkpoint.CheckpointHistory; |
| import org.apache.ignite.internal.processors.task.GridInternal; |
| import org.apache.ignite.resources.IgniteInstanceResource; |
| import org.apache.ignite.resources.LoggerResource; |
| |
| /** |
| * Task that checks whether last checkpoint is applicable for providing history for all groups and partitions that are |
| * passed as parameters. If at least one group or partition can't be supplied due to absence of last checkpoint, the task |
| * enforces a checkpoint to ensure possibility of the historical rebalancing. |
| * The task takes as parametes a collection by fillowing structure: Map{node id -> Map{Group id -> Set{Partition id}}}. |
| * Each node that is mentioned in parameter is receiving own particular collection: Map{Group id -> Set{Partition id}}. |
| */ |
| @GridInternal |
| public class CheckCpHistTask extends ComputeTaskAdapter<Map<UUID, Map<Integer, Set<Integer>>>, Boolean> { |
| /** Serial version id. */ |
| private static final long serialVersionUID = 0L; |
| |
| /** Reason of checkpoint, which can be triggered by this task. */ |
| public static final String CP_REASON = "required by another node which is performing a graceful shutdown"; |
| |
| /** {@inheritDoc} */ |
| @Override public Map<CheckCpHistClosureJob, ClusterNode> map( |
| List<ClusterNode> subgrid, |
| Map<UUID, Map<Integer, Set<Integer>>> arg |
| ) throws IgniteException { |
| Map<CheckCpHistClosureJob, ClusterNode> res = new HashMap<>(); |
| |
| for (ClusterNode node : subgrid) { |
| if (arg.containsKey(node.id())) |
| res.put(new CheckCpHistClosureJob(arg.get(node.id())), node); |
| } |
| |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public ComputeJobResultPolicy result( |
| ComputeJobResult res, |
| List<ComputeJobResult> rcvd |
| ) throws IgniteException { |
| if (res.getException() != null) |
| return super.result(res, rcvd); |
| |
| if (!(boolean)res.getData()) |
| return ComputeJobResultPolicy.REDUCE; |
| |
| return ComputeJobResultPolicy.WAIT; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public Boolean reduce(List<ComputeJobResult> results) throws IgniteException { |
| for (ComputeJobResult result : results) { |
| if (!(boolean)result.getData()) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Job of checkpoint history task. |
| */ |
| private static class CheckCpHistClosureJob implements ComputeJob { |
| /** Serial version id. */ |
| private static final long serialVersionUID = 0L; |
| |
| /** Logger. */ |
| @LoggerResource |
| private IgniteLogger log; |
| |
| /** Auto-inject ignite instance. */ |
| @IgniteInstanceResource |
| private Ignite ignite; |
| |
| /** Cancelled job flag. */ |
| private volatile boolean cancelled; |
| |
| /** list of group's ids. */ |
| Map<Integer, Set<Integer>> grpIds; |
| |
| /** |
| * @param grpIds Map of group id to set of partitions. |
| */ |
| public CheckCpHistClosureJob(Map<Integer, Set<Integer>> grpIds) { |
| this.grpIds = grpIds; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void cancel() { |
| cancelled = true; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public Boolean execute() throws IgniteException { |
| IgniteEx igniteEx = (IgniteEx)ignite; |
| |
| if (igniteEx.context().cache().context().database() instanceof GridCacheDatabaseSharedManager) { |
| GridCacheSharedContext cctx = igniteEx.context().cache().context(); |
| GridCacheDatabaseSharedManager databaseMng = (GridCacheDatabaseSharedManager)cctx.database(); |
| CheckpointHistory cpHist = databaseMng.checkpointHistory(); |
| |
| CheckpointEntry lastCp = cpHist.lastCheckpoint(); |
| |
| try { |
| Map<Integer, CheckpointEntry.GroupState> states = lastCp.groupState(cctx.wal()); |
| |
| for (Integer grpId : grpIds.keySet()) { |
| if (cancelled) |
| return false; |
| |
| if (!cpHist.isCheckpointApplicableForGroup(grpId, lastCp)) { |
| databaseMng.forceCheckpoint(CP_REASON); |
| |
| break; |
| } |
| |
| CheckpointEntry.GroupState groupState = states.get(grpId); |
| |
| for (int p : grpIds.get(grpId)) { |
| if (groupState.indexByPartition(p) < 0) { |
| databaseMng.forceCheckpoint(CP_REASON); |
| |
| break; |
| } |
| } |
| } |
| } |
| catch (IgniteCheckedException e) { |
| log.warning("Can not read checkpoint [cp=" + lastCp.checkpointId() + ']', e); |
| |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| } |
| } |