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* Licensed to Elasticsearch under one or more contributor
* 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.cache.clear;
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.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.mapper.internal.ParentFieldMapper;
import org.elasticsearch.index.service.IndexService;
import org.elasticsearch.index.shard.service.IndexShard;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.indices.cache.filter.terms.IndicesTermsFilterCache;
import org.elasticsearch.indices.cache.query.IndicesQueryCache;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.List;
import java.util.concurrent.atomic.AtomicReferenceArray;
import static com.google.common.collect.Lists.newArrayList;
/**
* Indices clear cache action.
*/
public class TransportClearIndicesCacheAction extends TransportBroadcastOperationAction<ClearIndicesCacheRequest, ClearIndicesCacheResponse, ShardClearIndicesCacheRequest, ShardClearIndicesCacheResponse> {
private final IndicesService indicesService;
private final IndicesTermsFilterCache termsFilterCache;
private final IndicesQueryCache indicesQueryCache;
@Inject
public TransportClearIndicesCacheAction(Settings settings, ThreadPool threadPool, ClusterService clusterService,
TransportService transportService, IndicesService indicesService, IndicesTermsFilterCache termsFilterCache,
IndicesQueryCache indicesQueryCache, ActionFilters actionFilters) {
super(settings, ClearIndicesCacheAction.NAME, threadPool, clusterService, transportService, actionFilters);
this.indicesService = indicesService;
this.termsFilterCache = termsFilterCache;
this.indicesQueryCache = indicesQueryCache;
}
@Override
protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override
protected ClearIndicesCacheRequest newRequest() {
return new ClearIndicesCacheRequest();
}
@Override
protected ClearIndicesCacheResponse newResponse(ClearIndicesCacheRequest request, AtomicReferenceArray shardsResponses, ClusterState clusterState) {
int successfulShards = 0;
int failedShards = 0;
List<ShardOperationFailedException> shardFailures = null;
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 = newArrayList();
}
shardFailures.add(new DefaultShardOperationFailedException((BroadcastShardOperationFailedException) shardResponse));
} else {
successfulShards++;
}
}
return new ClearIndicesCacheResponse(shardsResponses.length(), successfulShards, failedShards, shardFailures);
}
@Override
protected ShardClearIndicesCacheRequest newShardRequest() {
return new ShardClearIndicesCacheRequest();
}
@Override
protected ShardClearIndicesCacheRequest newShardRequest(int numShards, ShardRouting shard, ClearIndicesCacheRequest request) {
return new ShardClearIndicesCacheRequest(shard.shardId(), request);
}
@Override
protected ShardClearIndicesCacheResponse newShardResponse() {
return new ShardClearIndicesCacheResponse();
}
@Override
protected ShardClearIndicesCacheResponse shardOperation(ShardClearIndicesCacheRequest request) throws ElasticsearchException {
IndexService service = indicesService.indexService(request.shardId().getIndex());
if (service != null) {
IndexShard shard = service.shard(request.shardId().id());
// we always clear the query cache
service.cache().queryParserCache().clear();
boolean clearedAtLeastOne = false;
if (request.filterCache()) {
clearedAtLeastOne = true;
service.cache().filter().clear("api");
termsFilterCache.clear("api");
}
if (request.filterKeys() != null && request.filterKeys().length > 0) {
clearedAtLeastOne = true;
service.cache().filter().clear("api", request.filterKeys());
termsFilterCache.clear("api", request.filterKeys());
}
if (request.fieldDataCache()) {
clearedAtLeastOne = true;
if (request.fields() == null || request.fields().length == 0) {
service.fieldData().clear();
} else {
for (String field : request.fields()) {
service.fieldData().clearField(field);
}
}
}
if (request.queryCache()) {
clearedAtLeastOne = true;
indicesQueryCache.clear(shard);
}
if (request.recycler()) {
logger.debug("Clear CacheRecycler on index [{}]", service.index());
clearedAtLeastOne = true;
// cacheRecycler.clear();
}
if (request.idCache()) {
clearedAtLeastOne = true;
service.fieldData().clearField(ParentFieldMapper.NAME);
}
if (!clearedAtLeastOne) {
if (request.fields() != null && request.fields().length > 0) {
// only clear caches relating to the specified fields
for (String field : request.fields()) {
service.fieldData().clearField(field);
}
} else {
service.cache().clear("api");
service.fieldData().clear();
termsFilterCache.clear("api");
indicesQueryCache.clear(shard);
}
}
}
return new ShardClearIndicesCacheResponse(request.shardId());
}
/**
* The refresh request works against *all* shards.
*/
@Override
protected GroupShardsIterator shards(ClusterState clusterState, ClearIndicesCacheRequest request, String[] concreteIndices) {
return clusterState.routingTable().allActiveShardsGrouped(concreteIndices, true);
}
@Override
protected ClusterBlockException checkGlobalBlock(ClusterState state, ClearIndicesCacheRequest request) {
return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA);
}
@Override
protected ClusterBlockException checkRequestBlock(ClusterState state, ClearIndicesCacheRequest request, String[] concreteIndices) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA, concreteIndices);
}
}