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org.elasticsearch.action.admin.indices.stats.TransportIndicesStatsAction Maven / Gradle / Ivy
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.action.admin.indices.stats;
import org.apache.lucene.store.AlreadyClosedException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.DefaultShardOperationFailedException;
import org.elasticsearch.action.support.broadcast.node.TransportBroadcastByNodeAction;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.ShardsIterator;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.index.IndexService;
import org.elasticsearch.index.engine.CommitStats;
import org.elasticsearch.index.seqno.RetentionLeaseStats;
import org.elasticsearch.index.seqno.SeqNoStats;
import org.elasticsearch.index.shard.IndexShard;
import org.elasticsearch.index.shard.ShardNotFoundException;
import org.elasticsearch.indices.IndicesService;
import org.elasticsearch.tasks.CancellableTask;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.List;
public class TransportIndicesStatsAction extends TransportBroadcastByNodeAction {
private final IndicesService indicesService;
@Inject
public TransportIndicesStatsAction(
ClusterService clusterService,
TransportService transportService,
IndicesService indicesService,
ActionFilters actionFilters,
IndexNameExpressionResolver indexNameExpressionResolver
) {
super(
IndicesStatsAction.NAME,
clusterService,
transportService,
actionFilters,
indexNameExpressionResolver,
IndicesStatsRequest::new,
ThreadPool.Names.MANAGEMENT
);
this.indicesService = indicesService;
}
/**
* Status goes across *all* shards.
*/
@Override
protected ShardsIterator shards(ClusterState clusterState, IndicesStatsRequest request, String[] concreteIndices) {
return clusterState.routingTable().allShards(concreteIndices);
}
@Override
protected ClusterBlockException checkGlobalBlock(ClusterState state, IndicesStatsRequest request) {
return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA_READ);
}
@Override
protected ClusterBlockException checkRequestBlock(ClusterState state, IndicesStatsRequest request, String[] concreteIndices) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA_READ, concreteIndices);
}
@Override
protected ShardStats readShardResult(StreamInput in) throws IOException {
return new ShardStats(in);
}
@Override
protected IndicesStatsResponse newResponse(
IndicesStatsRequest request,
int totalShards,
int successfulShards,
int failedShards,
List responses,
List shardFailures,
ClusterState clusterState
) {
return new IndicesStatsResponse(
responses.toArray(new ShardStats[responses.size()]),
totalShards,
successfulShards,
failedShards,
shardFailures,
clusterState
);
}
@Override
protected IndicesStatsRequest readRequestFrom(StreamInput in) throws IOException {
return new IndicesStatsRequest(in);
}
@Override
protected void shardOperation(IndicesStatsRequest request, ShardRouting shardRouting, Task task, ActionListener listener) {
ActionListener.completeWith(listener, () -> {
assert task instanceof CancellableTask;
IndexService indexService = indicesService.indexServiceSafe(shardRouting.shardId().getIndex());
IndexShard indexShard = indexService.getShard(shardRouting.shardId().id());
// if we don't have the routing entry yet, we need it stats wise, we treat it as if the shard is not ready yet
if (indexShard.routingEntry() == null) {
throw new ShardNotFoundException(indexShard.shardId());
}
CommonStats commonStats = new CommonStats(indicesService.getIndicesQueryCache(), indexShard, request.flags());
CommitStats commitStats;
SeqNoStats seqNoStats;
RetentionLeaseStats retentionLeaseStats;
try {
commitStats = indexShard.commitStats();
seqNoStats = indexShard.seqNoStats();
retentionLeaseStats = indexShard.getRetentionLeaseStats();
} catch (final AlreadyClosedException e) {
// shard is closed - no stats is fine
commitStats = null;
seqNoStats = null;
retentionLeaseStats = null;
}
return new ShardStats(
indexShard.routingEntry(),
indexShard.shardPath(),
commonStats,
commitStats,
seqNoStats,
retentionLeaseStats
);
});
}
}