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Elasticsearch subproject :server
/*
* 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.index.store;
import org.apache.lucene.store.StoreRateLimiting;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.index.AbstractIndexComponent;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettingsService;
import org.elasticsearch.indices.store.IndicesStore;
import java.io.Closeable;
public class IndexStore extends AbstractIndexComponent implements Closeable {
public static final String INDEX_STORE_THROTTLE_TYPE = "index.store.throttle.type";
public static final String INDEX_STORE_THROTTLE_MAX_BYTES_PER_SEC = "index.store.throttle.max_bytes_per_sec";
private final IndexSettingsService settingsService;
class ApplySettings implements IndexSettingsService.Listener {
@Override
public void onRefreshSettings(Settings settings) {
String rateLimitingType = settings.get(INDEX_STORE_THROTTLE_TYPE, IndexStore.this.rateLimitingType);
if (!rateLimitingType.equals(IndexStore.this.rateLimitingType)) {
logger.info("updating index.store.throttle.type from [{}] to [{}]", IndexStore.this.rateLimitingType, rateLimitingType);
if (rateLimitingType.equalsIgnoreCase("node")) {
IndexStore.this.rateLimitingType = rateLimitingType;
IndexStore.this.nodeRateLimiting = true;
} else {
StoreRateLimiting.Type.fromString(rateLimitingType);
IndexStore.this.rateLimitingType = rateLimitingType;
IndexStore.this.nodeRateLimiting = false;
IndexStore.this.rateLimiting.setType(rateLimitingType);
}
}
ByteSizeValue rateLimitingThrottle = settings.getAsBytesSize(INDEX_STORE_THROTTLE_MAX_BYTES_PER_SEC, IndexStore.this.rateLimitingThrottle);
if (!rateLimitingThrottle.equals(IndexStore.this.rateLimitingThrottle)) {
logger.info("updating index.store.throttle.max_bytes_per_sec from [{}] to [{}], note, type is [{}]", IndexStore.this.rateLimitingThrottle, rateLimitingThrottle, IndexStore.this.rateLimitingType);
IndexStore.this.rateLimitingThrottle = rateLimitingThrottle;
IndexStore.this.rateLimiting.setMaxRate(rateLimitingThrottle);
}
}
}
protected final IndicesStore indicesStore;
private volatile String rateLimitingType;
private volatile ByteSizeValue rateLimitingThrottle;
private volatile boolean nodeRateLimiting;
private final StoreRateLimiting rateLimiting = new StoreRateLimiting();
private final ApplySettings applySettings = new ApplySettings();
@Inject
public IndexStore(Index index, IndexSettingsService settingsService, IndicesStore indicesStore) {
super(index, settingsService.getSettings());
Settings indexSettings = settingsService.getSettings();
this.indicesStore = indicesStore;
this.rateLimitingType = indexSettings.get(INDEX_STORE_THROTTLE_TYPE, "none");
if (rateLimitingType.equalsIgnoreCase("node")) {
nodeRateLimiting = true;
} else {
nodeRateLimiting = false;
rateLimiting.setType(rateLimitingType);
}
this.rateLimitingThrottle = indexSettings.getAsBytesSize(INDEX_STORE_THROTTLE_MAX_BYTES_PER_SEC, new ByteSizeValue(0));
rateLimiting.setMaxRate(rateLimitingThrottle);
logger.debug("using index.store.throttle.type [{}], with index.store.throttle.max_bytes_per_sec [{}]", rateLimitingType, rateLimitingThrottle);
this.settingsService = settingsService;
this.settingsService.addListener(applySettings);
}
@Override
public void close() {
settingsService.removeListener(applySettings);
}
/**
* Returns the rate limiting, either of the index is explicitly configured, or
* the node level one (defaults to the node level one).
*/
public StoreRateLimiting rateLimiting() {
return nodeRateLimiting ? indicesStore.rateLimiting() : this.rateLimiting;
}
/**
* The shard store class that should be used for each shard.
*/
public Class shardDirectory() {
return FsDirectoryService.class;
}
}