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* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.action.admin.indices.recovery;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ShardOperationFailedException;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.DefaultShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.BroadcastShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.BroadcastShardOperationRequest;
import org.elasticsearch.action.support.broadcast.TransportBroadcastOperationAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.routing.GroupShardsIterator;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.gateway.IndexShardGatewayService;
import org.elasticsearch.index.service.InternalIndexService;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.index.shard.service.InternalIndexShard;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.indices.recovery.RecoveryState;
import org.elasticsearch.indices.recovery.RecoveryTarget;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReferenceArray;
/**
* Transport action for shard recovery operation. This transport action does not actually
* perform shard recovery, it only reports on recoveries (both active and complete).
*/
public class TransportRecoveryAction extends
TransportBroadcastOperationAction<RecoveryRequest, RecoveryResponse, TransportRecoveryAction.ShardRecoveryRequest, ShardRecoveryResponse> {
private final IndicesService indicesService;
private final RecoveryTarget recoveryTarget;
@Inject
public TransportRecoveryAction(Settings settings, ThreadPool threadPool, ClusterService clusterService,
TransportService transportService, IndicesService indicesService, RecoveryTarget recoveryTarget, ActionFilters actionFilters) {
super(settings, RecoveryAction.NAME, threadPool, clusterService, transportService, actionFilters);
this.indicesService = indicesService;
this.recoveryTarget = recoveryTarget;
}
@Override
protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override
protected RecoveryRequest newRequest() {
return new RecoveryRequest();
}
@Override
protected RecoveryResponse newResponse(RecoveryRequest request, AtomicReferenceArray shardsResponses, ClusterState clusterState) {
int successfulShards = 0;
int failedShards = 0;
List<ShardOperationFailedException> shardFailures = null;
Map<String, List<ShardRecoveryResponse>> shardResponses = new HashMap<>();
for (int i = 0; i < shardsResponses.length(); i++) {
Object shardResponse = shardsResponses.get(i);
if (shardResponse == null) {
// simply ignore non active shards
} else if (shardResponse instanceof BroadcastShardOperationFailedException) {
failedShards++;
if (shardFailures == null) {
shardFailures = new ArrayList<>();
}
shardFailures.add(new DefaultShardOperationFailedException((BroadcastShardOperationFailedException) shardResponse));
} else {
ShardRecoveryResponse recoveryResponse = (ShardRecoveryResponse) shardResponse;
successfulShards++;
String indexName = recoveryResponse.getIndex();
List<ShardRecoveryResponse> responses = shardResponses.get(indexName);
if (responses == null) {
responses = new ArrayList<>();
shardResponses.put(indexName, responses);
}
if (request.activeOnly()) {
if (recoveryResponse.recoveryState().getStage() != RecoveryState.Stage.DONE) {
responses.add(recoveryResponse);
}
} else {
responses.add(recoveryResponse);
}
}
}
RecoveryResponse response = new RecoveryResponse(shardsResponses.length(), successfulShards,
failedShards, request.detailed(), shardResponses, shardFailures);
return response;
}
@Override
protected ShardRecoveryRequest newShardRequest() {
return new ShardRecoveryRequest();
}
@Override
protected ShardRecoveryRequest newShardRequest(int numShards, ShardRouting shard, RecoveryRequest request) {
return new ShardRecoveryRequest(shard.shardId(), request);
}
@Override
protected ShardRecoveryResponse newShardResponse() {
return new ShardRecoveryResponse();
}
@Override
protected ShardRecoveryResponse shardOperation(ShardRecoveryRequest request) throws ElasticsearchException {
InternalIndexService indexService = (InternalIndexService) indicesService.indexServiceSafe(request.shardId().getIndex());
InternalIndexShard indexShard = (InternalIndexShard) indexService.shardSafe(request.shardId().id());
ShardRecoveryResponse shardRecoveryResponse = new ShardRecoveryResponse(request.shardId());
RecoveryState state = indexShard.recoveryState();
if (state == null) {
state = recoveryTarget.recoveryState(indexShard);
}
if (state == null) {
IndexShardGatewayService gatewayService =
indexService.shardInjector(request.shardId().id()).getInstance(IndexShardGatewayService.class);
state = gatewayService.recoveryState();
}
shardRecoveryResponse.recoveryState(state);
return shardRecoveryResponse;
}
@Override
protected GroupShardsIterator shards(ClusterState state, RecoveryRequest request, String[] concreteIndices) {
return state.routingTable().allAssignedShardsGrouped(concreteIndices, true, true);
}
@Override
protected ClusterBlockException checkGlobalBlock(ClusterState state, RecoveryRequest request) {
return state.blocks().globalBlockedException(ClusterBlockLevel.READ);
}
@Override
protected ClusterBlockException checkRequestBlock(ClusterState state, RecoveryRequest request, String[] concreteIndices) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.READ, concreteIndices);
}
static class ShardRecoveryRequest extends BroadcastShardOperationRequest {
ShardRecoveryRequest() {
}
ShardRecoveryRequest(ShardId shardId, RecoveryRequest request) {
super(shardId, request);
}
}
}