/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.index.shard;
import org.elasticsearch.common.component.CloseableComponent;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.index.engine.Engine;
import org.elasticsearch.index.settings.IndexSettings;
import org.elasticsearch.index.shard.service.IndexShard;
import org.elasticsearch.index.store.Store;
import org.elasticsearch.index.translog.Translog;
import org.elasticsearch.jmx.JmxService;
import org.elasticsearch.jmx.MBean;
import org.elasticsearch.jmx.ManagedAttribute;
import java.io.IOException;
import static org.elasticsearch.index.IndexServiceManagement.*;
/**
* @author kimchy (Shay Banon)
*/
@MBean(objectName = "", description = "")
public class IndexShardManagement extends AbstractIndexShardComponent implements CloseableComponent {
public static String buildShardGroupName(ShardId shardId) {
return buildIndexGroupName(shardId.index()) + ",subService=shards,shard=" + shardId.id();
}
private final JmxService jmxService;
private final IndexShard indexShard;
private final Store store;
private final Translog translog;
@Inject public IndexShardManagement(ShardId shardId, @IndexSettings Settings indexSettings, JmxService jmxService, IndexShard indexShard,
Store store, Translog translog) {
super(shardId, indexSettings);
this.jmxService = jmxService;
this.indexShard = indexShard;
this.store = store;
this.translog = translog;
}
public void close() {
jmxService.unregisterGroup(buildShardGroupName(indexShard.shardId()));
}
@ManagedAttribute(description = "Index Name")
public String getIndex() {
return indexShard.shardId().index().name();
}
@ManagedAttribute(description = "Shard Id")
public int getShardId() {
return indexShard.shardId().id();
}
@ManagedAttribute(description = "Storage Size")
public String getStoreSize() {
try {
return store.estimateSize().toString();
} catch (IOException e) {
return "NA";
}
}
@ManagedAttribute(description = "The current transaction log id")
public long getTranslogId() {
return translog.currentId();
}
@ManagedAttribute(description = "Number of transaction log operations")
public long getTranslogNumberOfOperations() {
return translog.estimatedNumberOfOperations();
}
@ManagedAttribute(description = "Estimated size in memory the transaction log takes")
public String getTranslogSize() {
return new ByteSizeValue(translog.memorySizeInBytes()).toString();
}
@ManagedAttribute(description = "The state of the shard")
public String getState() {
return indexShard.state().toString();
}
@ManagedAttribute(description = "Primary")
public boolean isPrimary() {
return indexShard.routingEntry().primary();
}
@ManagedAttribute(description = "The state of the shard as perceived by the cluster")
public String getRoutingState() {
return indexShard.routingEntry().state().toString();
}
@ManagedAttribute(description = "The number of documents in the index")
public int getNumDocs() {
Engine.Searcher searcher = indexShard.searcher();
try {
return searcher.reader().numDocs();
} finally {
searcher.release();
}
}
@ManagedAttribute(description = "The total number of documents in the index (including deleted ones)")
public int getMaxDoc() {
Engine.Searcher searcher = indexShard.searcher();
try {
return searcher.reader().maxDoc();
} finally {
searcher.release();
}
}
}