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With new listener, an event is published when a new migration process starts and another event when migration is completed. Those events include stats about migration process; start time, planned migration count, completed migration count etc. Additionally, on each replica migration, both for primary and backup replica migrations, a migration event is published. This event includes partition-id, replica-index and migration progress stats.
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hazelcast/src/main/java/com/hazelcast/internal/partition/MigrationEventImpl.java
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| /* | ||
| * Copyright (c) 2008-2019, Hazelcast, Inc. All Rights Reserved. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
|
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| package com.hazelcast.internal.partition; | ||
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| import com.hazelcast.cluster.Member; | ||
| import com.hazelcast.internal.partition.impl.PartitionDataSerializerHook; | ||
| import com.hazelcast.nio.ObjectDataInput; | ||
| import com.hazelcast.nio.ObjectDataOutput; | ||
| import com.hazelcast.nio.serialization.IdentifiedDataSerializable; | ||
| import com.hazelcast.partition.MigrationEvent; | ||
| import com.hazelcast.partition.MigrationListener; | ||
| import com.hazelcast.partition.MigrationProgress; | ||
| import com.hazelcast.partition.Partition; | ||
| import com.hazelcast.partition.PartitionService; | ||
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| import java.io.IOException; | ||
|
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| /** | ||
| * An event fired when a partition migration starts, completes or fails. | ||
| * | ||
| * @see Partition | ||
| * @see PartitionService | ||
| * @see MigrationListener | ||
| */ | ||
| public class MigrationEventImpl implements MigrationEvent, IdentifiedDataSerializable { | ||
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| private MigrationProgress progress; | ||
| private int partitionId; | ||
| private int replicaIndex; | ||
| private Member source; | ||
| private Member destination; | ||
| private boolean success; | ||
| private long elapsedTime; | ||
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| public MigrationEventImpl() { | ||
| } | ||
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| public MigrationEventImpl(MigrationProgress progress, int partitionId, int replicaIndex, Member source, Member destination, | ||
| boolean success, long elapsedTime) { | ||
| this.progress = progress; | ||
| this.partitionId = partitionId; | ||
| this.replicaIndex = replicaIndex; | ||
| this.source = source; | ||
| this.destination = destination; | ||
| this.success = success; | ||
| this.elapsedTime = elapsedTime; | ||
| } | ||
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| @Override | ||
| public int getPartitionId() { | ||
| return partitionId; | ||
| } | ||
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| @Override | ||
| public int getReplicaIndex() { | ||
| return replicaIndex; | ||
| } | ||
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| @Override | ||
| public Member getSource() { | ||
| return source; | ||
| } | ||
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| @Override | ||
| public Member getDestination() { | ||
| return destination; | ||
| } | ||
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| @Override | ||
| public MigrationProgress getMigrationProgress() { | ||
| return progress; | ||
| } | ||
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| @Override | ||
| public boolean isSuccess() { | ||
| return success; | ||
| } | ||
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| @Override | ||
| public long getElapsedTime() { | ||
| return elapsedTime; | ||
| } | ||
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| public void writeData(ObjectDataOutput out) throws IOException { | ||
| out.writeObject(progress); | ||
| out.writeInt(partitionId); | ||
| out.writeInt(replicaIndex); | ||
| out.writeObject(source); | ||
| out.writeObject(destination); | ||
| out.writeBoolean(success); | ||
| out.writeLong(elapsedTime); | ||
| } | ||
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| public void readData(ObjectDataInput in) throws IOException { | ||
| progress = in.readObject(); | ||
| partitionId = in.readInt(); | ||
| replicaIndex = in.readInt(); | ||
| source = in.readObject(); | ||
| destination = in.readObject(); | ||
| success = in.readBoolean(); | ||
| elapsedTime = in.readLong(); | ||
| } | ||
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| @Override | ||
| public int getFactoryId() { | ||
| return PartitionDataSerializerHook.F_ID; | ||
| } | ||
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| @Override | ||
| public int getClassId() { | ||
| return PartitionDataSerializerHook.MIGRATION_EVENT; | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "MigrationEventImpl{" + "progress=" + progress + ", partitionId=" + partitionId + ", replicaIndex=" + replicaIndex | ||
| + ", source=" + source + ", destination=" + destination + ", success=" + success + ", elapsedTime=" + elapsedTime | ||
| + "ms}"; | ||
| } | ||
| } |
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