mirror of https://github.com/apache/lucene.git
Fixes for SOLR-2906. Many thanks to Shawn Heisey
git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1230745 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Erick Erickson
parent
003ddcb809
commit
ec071905fb
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@ -197,6 +197,7 @@ New Features
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* SOLR-2992: Add support for IndexWriter.prepareCommit() via prepareCommit=true
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* SOLR-2992: Add support for IndexWriter.prepareCommit() via prepareCommit=true
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on update URLs. (yonik)
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on update URLs. (yonik)
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* SOLR-2906: Added LFU cache options to Solr. (Shawn Heisey via Erick Erickson)
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Optimizations
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Optimizations
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----------------------
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----------------------
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@ -424,6 +425,8 @@ New Features
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JMX. The default root name is "solr" followed by the core name.
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JMX. The default root name is "solr" followed by the core name.
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(Constantijn Visinescu, hossman)
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(Constantijn Visinescu, hossman)
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* SOLR-2906: Added LFU cache options to Solr. (Shawn Heisey via Erick Erickson)
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Optimizations
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Optimizations
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----------------------
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----------------------
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* SOLR-1931: Speedup for LukeRequestHandler and admin/schema browser. New parameter
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* SOLR-1931: Speedup for LukeRequestHandler and admin/schema browser. New parameter
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@ -0,0 +1,879 @@
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package org.apache.solr.search;
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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import org.apache.solr.common.SolrException;
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import org.apache.solr.common.util.NamedList;
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import org.apache.solr.common.util.SimpleOrderedMap;
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import org.apache.solr.core.SolrCore;
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import org.apache.solr.util.ConcurrentLFUCache;
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import java.io.IOException;
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import java.io.Serializable;
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import java.net.URL;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.concurrent.CopyOnWriteArrayList;
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/**
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* SolrCache based on ConcurrentLFUCache implementation.
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* <p/>
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* This implementation does not use a separate cleanup thread. Instead it uses the calling thread
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* itself to do the cleanup when the size of the cache exceeds certain limits.
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* <p/>
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* Also see <a href="http://wiki.apache.org/solr/SolrCaching">SolrCaching</a>
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* <p/>
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* <b>This API is experimental and subject to change</b>
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*
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* @version $Id: LFUCache.java 1170772 2011-09-14 19:09:56Z sarowe $
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* @see org.apache.solr.util.ConcurrentLFUCache
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* @see org.apache.solr.search.SolrCache
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* @since solr 3.6
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*/
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public class LFUCache<K, V> implements SolrCache<K, V> {
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// contains the statistics objects for all open caches of the same type
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private List<ConcurrentLFUCache.Stats> statsList;
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private long warmupTime = 0;
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private String name;
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private int autowarmCount;
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private State state;
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private CacheRegenerator regenerator;
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private String description = "Concurrent LFU Cache";
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private ConcurrentLFUCache<K, V> cache;
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private int showItems = 0;
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private Boolean timeDecay = true;
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public Object init(Map args, Object persistence, CacheRegenerator regenerator) {
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state = State.CREATED;
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this.regenerator = regenerator;
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name = (String) args.get("name");
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String str = (String) args.get("size");
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int limit = str == null ? 1024 : Integer.parseInt(str);
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int minLimit;
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str = (String) args.get("minSize");
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if (str == null) {
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minLimit = (int) (limit * 0.9);
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} else {
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minLimit = Integer.parseInt(str);
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}
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if (minLimit == 0) minLimit = 1;
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if (limit <= minLimit) limit = minLimit + 1;
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int acceptableSize;
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str = (String) args.get("acceptableSize");
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if (str == null) {
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acceptableSize = (int) (limit * 0.95);
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} else {
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acceptableSize = Integer.parseInt(str);
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}
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// acceptable limit should be somewhere between minLimit and limit
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acceptableSize = Math.max(minLimit, acceptableSize);
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str = (String) args.get("initialSize");
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final int initialSize = str == null ? limit : Integer.parseInt(str);
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str = (String) args.get("autowarmCount");
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autowarmCount = str == null ? 0 : Integer.parseInt(str);
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str = (String) args.get("cleanupThread");
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boolean newThread = str == null ? false : Boolean.parseBoolean(str);
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str = (String) args.get("showItems");
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showItems = str == null ? 0 : Integer.parseInt(str);
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// Don't make this "efficient" by removing the test, default is true and omitting the param will make it false.
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str = (String) args.get("timeDecay");
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timeDecay = (str == null) ? true : Boolean.parseBoolean(str);
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description = "Concurrent LFU Cache(maxSize=" + limit + ", initialSize=" + initialSize +
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", minSize=" + minLimit + ", acceptableSize=" + acceptableSize + ", cleanupThread=" + newThread +
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", timeDecay=" + Boolean.toString(timeDecay);
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if (autowarmCount > 0) {
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description += ", autowarmCount=" + autowarmCount + ", regenerator=" + regenerator;
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}
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description += ')';
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cache = new ConcurrentLFUCache<K, V>(limit, minLimit, acceptableSize, initialSize, newThread, false, null, timeDecay);
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cache.setAlive(false);
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statsList = (List<ConcurrentLFUCache.Stats>) persistence;
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if (statsList == null) {
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// must be the first time a cache of this type is being created
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// Use a CopyOnWriteArrayList since puts are very rare and iteration may be a frequent operation
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// because it is used in getStatistics()
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statsList = new CopyOnWriteArrayList<ConcurrentLFUCache.Stats>();
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// the first entry will be for cumulative stats of caches that have been closed.
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statsList.add(new ConcurrentLFUCache.Stats());
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}
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statsList.add(cache.getStats());
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return statsList;
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}
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public String name() {
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return name;
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}
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public int size() {
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return cache.size();
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}
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public V put(K key, V value) {
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return cache.put(key, value);
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}
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public V get(K key) {
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return cache.get(key);
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}
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public void clear() {
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cache.clear();
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}
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public void setState(State state) {
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this.state = state;
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cache.setAlive(state == State.LIVE);
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}
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public State getState() {
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return state;
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}
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public void warm(SolrIndexSearcher searcher, SolrCache old) throws IOException {
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if (regenerator == null) return;
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long warmingStartTime = System.currentTimeMillis();
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LFUCache other = (LFUCache) old;
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// warm entries
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if (autowarmCount != 0) {
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int sz = other.size();
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if (autowarmCount != -1) sz = Math.min(sz, autowarmCount);
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Map items = other.cache.getMostUsedItems(sz);
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Map.Entry[] itemsArr = new Map.Entry[items.size()];
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int counter = 0;
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for (Object mapEntry : items.entrySet()) {
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itemsArr[counter++] = (Map.Entry) mapEntry;
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}
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for (int i = itemsArr.length - 1; i >= 0; i--) {
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try {
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boolean continueRegen = regenerator.regenerateItem(searcher,
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this, old, itemsArr[i].getKey(), itemsArr[i].getValue());
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if (!continueRegen) break;
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} catch (Throwable e) {
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SolrException.log(log, "Error during auto-warming of key:" + itemsArr[i].getKey(), e);
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}
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}
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}
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warmupTime = System.currentTimeMillis() - warmingStartTime;
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}
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public void close() {
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// add the stats to the cumulative stats object (the first in the statsList)
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statsList.get(0).add(cache.getStats());
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statsList.remove(cache.getStats());
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cache.destroy();
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}
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//////////////////////// SolrInfoMBeans methods //////////////////////
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public String getName() {
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return LFUCache.class.getName();
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}
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public String getVersion() {
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return SolrCore.version;
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}
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public String getDescription() {
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return description;
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}
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public Category getCategory() {
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return Category.CACHE;
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}
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public String getSourceId() {
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return "$Id: LFUCache.java 1170772 2011-09-14 19:09:56Z sarowe $";
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}
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public String getSource() {
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return "$URL: http://svn.apache.org/repos/asf/lucene/dev/branches/branch_3x/solr/core/src/java/org/apache/solr/search/LFUCache.java $";
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}
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public URL[] getDocs() {
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return null;
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}
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// returns a ratio, not a percent.
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private static String calcHitRatio(long lookups, long hits) {
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if (lookups == 0) return "0.00";
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if (lookups == hits) return "1.00";
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int hundredths = (int) (hits * 100 / lookups); // rounded down
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if (hundredths < 10) return "0.0" + hundredths;
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return "0." + hundredths;
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}
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public NamedList getStatistics() {
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NamedList<Serializable> lst = new SimpleOrderedMap<Serializable>();
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if (cache == null) return lst;
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ConcurrentLFUCache.Stats stats = cache.getStats();
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long lookups = stats.getCumulativeLookups();
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long hits = stats.getCumulativeHits();
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long inserts = stats.getCumulativePuts();
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long evictions = stats.getCumulativeEvictions();
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long size = stats.getCurrentSize();
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lst.add("lookups", lookups);
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lst.add("hits", hits);
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lst.add("hitratio", calcHitRatio(lookups, hits));
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lst.add("inserts", inserts);
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|
lst.add("evictions", evictions);
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lst.add("size", size);
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|
lst.add("warmupTime", warmupTime);
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|
lst.add("timeDecay", timeDecay);
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long clookups = 0;
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long chits = 0;
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long cinserts = 0;
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|
long cevictions = 0;
|
||||||
|
|
||||||
|
// NOTE: It is safe to iterate on a CopyOnWriteArrayList
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|
for (ConcurrentLFUCache.Stats statistiscs : statsList) {
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|
clookups += statistiscs.getCumulativeLookups();
|
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|
chits += statistiscs.getCumulativeHits();
|
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cinserts += statistiscs.getCumulativePuts();
|
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cevictions += statistiscs.getCumulativeEvictions();
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|
}
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lst.add("cumulative_lookups", clookups);
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|
lst.add("cumulative_hits", chits);
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|
lst.add("cumulative_hitratio", calcHitRatio(clookups, chits));
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lst.add("cumulative_inserts", cinserts);
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|
lst.add("cumulative_evictions", cevictions);
|
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|
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|
if (showItems != 0) {
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|
Map items = cache.getMostUsedItems(showItems == -1 ? Integer.MAX_VALUE : showItems);
|
||||||
|
for (Map.Entry e : (Set<Map.Entry>) items.entrySet()) {
|
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|
Object k = e.getKey();
|
||||||
|
Object v = e.getValue();
|
||||||
|
|
||||||
|
String ks = "item_" + k;
|
||||||
|
String vs = v.toString();
|
||||||
|
lst.add(ks, vs);
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
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|
||||||
|
return lst;
|
||||||
|
}
|
||||||
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|
||||||
|
@Override
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||||||
|
public String toString() {
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||||||
|
return name + getStatistics().toString();
|
||||||
|
}
|
||||||
|
}
|
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|
||||||
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|
||||||
|
|
||||||
|
package org.apache.solr.search;
|
||||||
|
/**
|
||||||
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||||
|
* contributor license agreements. See the NOTICE file distributed with
|
||||||
|
* this work for additional information regarding copyright ownership.
|
||||||
|
* The ASF 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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
import org.apache.solr.common.SolrException;
|
||||||
|
import org.apache.solr.common.util.NamedList;
|
||||||
|
import org.apache.solr.common.util.SimpleOrderedMap;
|
||||||
|
import org.apache.solr.core.SolrCore;
|
||||||
|
import org.apache.solr.util.ConcurrentLFUCache;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.io.Serializable;
|
||||||
|
import java.net.URL;
|
||||||
|
import java.util.List;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.Set;
|
||||||
|
import java.util.concurrent.CopyOnWriteArrayList;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* SolrCache based on ConcurrentLFUCache implementation.
|
||||||
|
* <p/>
|
||||||
|
* This implementation does not use a separate cleanup thread. Instead it uses the calling thread
|
||||||
|
* itself to do the cleanup when the size of the cache exceeds certain limits.
|
||||||
|
* <p/>
|
||||||
|
* Also see <a href="http://wiki.apache.org/solr/SolrCaching">SolrCaching</a>
|
||||||
|
* <p/>
|
||||||
|
* <b>This API is experimental and subject to change</b>
|
||||||
|
*
|
||||||
|
* @version $Id: LFUCache.java 1170772 2011-09-14 19:09:56Z sarowe $
|
||||||
|
* @see org.apache.solr.util.ConcurrentLFUCache
|
||||||
|
* @see org.apache.solr.search.SolrCache
|
||||||
|
* @since solr 3.6
|
||||||
|
*/
|
||||||
|
public class LFUCache<K, V> implements SolrCache<K, V> {
|
||||||
|
|
||||||
|
// contains the statistics objects for all open caches of the same type
|
||||||
|
private List<ConcurrentLFUCache.Stats> statsList;
|
||||||
|
|
||||||
|
private long warmupTime = 0;
|
||||||
|
|
||||||
|
private String name;
|
||||||
|
private int autowarmCount;
|
||||||
|
private State state;
|
||||||
|
private CacheRegenerator regenerator;
|
||||||
|
private String description = "Concurrent LFU Cache";
|
||||||
|
private ConcurrentLFUCache<K, V> cache;
|
||||||
|
private int showItems = 0;
|
||||||
|
private Boolean timeDecay = true;
|
||||||
|
|
||||||
|
public Object init(Map args, Object persistence, CacheRegenerator regenerator) {
|
||||||
|
state = State.CREATED;
|
||||||
|
this.regenerator = regenerator;
|
||||||
|
name = (String) args.get("name");
|
||||||
|
String str = (String) args.get("size");
|
||||||
|
int limit = str == null ? 1024 : Integer.parseInt(str);
|
||||||
|
int minLimit;
|
||||||
|
str = (String) args.get("minSize");
|
||||||
|
if (str == null) {
|
||||||
|
minLimit = (int) (limit * 0.9);
|
||||||
|
} else {
|
||||||
|
minLimit = Integer.parseInt(str);
|
||||||
|
}
|
||||||
|
if (minLimit == 0) minLimit = 1;
|
||||||
|
if (limit <= minLimit) limit = minLimit + 1;
|
||||||
|
|
||||||
|
int acceptableSize;
|
||||||
|
str = (String) args.get("acceptableSize");
|
||||||
|
if (str == null) {
|
||||||
|
acceptableSize = (int) (limit * 0.95);
|
||||||
|
} else {
|
||||||
|
acceptableSize = Integer.parseInt(str);
|
||||||
|
}
|
||||||
|
// acceptable limit should be somewhere between minLimit and limit
|
||||||
|
acceptableSize = Math.max(minLimit, acceptableSize);
|
||||||
|
|
||||||
|
str = (String) args.get("initialSize");
|
||||||
|
final int initialSize = str == null ? limit : Integer.parseInt(str);
|
||||||
|
str = (String) args.get("autowarmCount");
|
||||||
|
autowarmCount = str == null ? 0 : Integer.parseInt(str);
|
||||||
|
str = (String) args.get("cleanupThread");
|
||||||
|
boolean newThread = str == null ? false : Boolean.parseBoolean(str);
|
||||||
|
|
||||||
|
str = (String) args.get("showItems");
|
||||||
|
showItems = str == null ? 0 : Integer.parseInt(str);
|
||||||
|
|
||||||
|
// Don't make this "efficient" by removing the test, default is true and omitting the param will make it false.
|
||||||
|
str = (String) args.get("timeDecay");
|
||||||
|
timeDecay = (str == null) ? true : Boolean.parseBoolean(str);
|
||||||
|
|
||||||
|
description = "Concurrent LFU Cache(maxSize=" + limit + ", initialSize=" + initialSize +
|
||||||
|
", minSize=" + minLimit + ", acceptableSize=" + acceptableSize + ", cleanupThread=" + newThread +
|
||||||
|
", timeDecay=" + Boolean.toString(timeDecay);
|
||||||
|
if (autowarmCount > 0) {
|
||||||
|
description += ", autowarmCount=" + autowarmCount + ", regenerator=" + regenerator;
|
||||||
|
}
|
||||||
|
description += ')';
|
||||||
|
|
||||||
|
cache = new ConcurrentLFUCache<K, V>(limit, minLimit, acceptableSize, initialSize, newThread, false, null, timeDecay);
|
||||||
|
cache.setAlive(false);
|
||||||
|
|
||||||
|
statsList = (List<ConcurrentLFUCache.Stats>) persistence;
|
||||||
|
if (statsList == null) {
|
||||||
|
// must be the first time a cache of this type is being created
|
||||||
|
// Use a CopyOnWriteArrayList since puts are very rare and iteration may be a frequent operation
|
||||||
|
// because it is used in getStatistics()
|
||||||
|
statsList = new CopyOnWriteArrayList<ConcurrentLFUCache.Stats>();
|
||||||
|
|
||||||
|
// the first entry will be for cumulative stats of caches that have been closed.
|
||||||
|
statsList.add(new ConcurrentLFUCache.Stats());
|
||||||
|
}
|
||||||
|
statsList.add(cache.getStats());
|
||||||
|
return statsList;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String name() {
|
||||||
|
return name;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int size() {
|
||||||
|
return cache.size();
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
public V put(K key, V value) {
|
||||||
|
return cache.put(key, value);
|
||||||
|
}
|
||||||
|
|
||||||
|
public V get(K key) {
|
||||||
|
return cache.get(key);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void clear() {
|
||||||
|
cache.clear();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setState(State state) {
|
||||||
|
this.state = state;
|
||||||
|
cache.setAlive(state == State.LIVE);
|
||||||
|
}
|
||||||
|
|
||||||
|
public State getState() {
|
||||||
|
return state;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void warm(SolrIndexSearcher searcher, SolrCache old) throws IOException {
|
||||||
|
if (regenerator == null) return;
|
||||||
|
long warmingStartTime = System.currentTimeMillis();
|
||||||
|
LFUCache other = (LFUCache) old;
|
||||||
|
// warm entries
|
||||||
|
if (autowarmCount != 0) {
|
||||||
|
int sz = other.size();
|
||||||
|
if (autowarmCount != -1) sz = Math.min(sz, autowarmCount);
|
||||||
|
Map items = other.cache.getMostUsedItems(sz);
|
||||||
|
Map.Entry[] itemsArr = new Map.Entry[items.size()];
|
||||||
|
int counter = 0;
|
||||||
|
for (Object mapEntry : items.entrySet()) {
|
||||||
|
itemsArr[counter++] = (Map.Entry) mapEntry;
|
||||||
|
}
|
||||||
|
for (int i = itemsArr.length - 1; i >= 0; i--) {
|
||||||
|
try {
|
||||||
|
boolean continueRegen = regenerator.regenerateItem(searcher,
|
||||||
|
this, old, itemsArr[i].getKey(), itemsArr[i].getValue());
|
||||||
|
if (!continueRegen) break;
|
||||||
|
} catch (Throwable e) {
|
||||||
|
SolrException.log(log, "Error during auto-warming of key:" + itemsArr[i].getKey(), e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
warmupTime = System.currentTimeMillis() - warmingStartTime;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
public void close() {
|
||||||
|
// add the stats to the cumulative stats object (the first in the statsList)
|
||||||
|
statsList.get(0).add(cache.getStats());
|
||||||
|
statsList.remove(cache.getStats());
|
||||||
|
cache.destroy();
|
||||||
|
}
|
||||||
|
|
||||||
|
//////////////////////// SolrInfoMBeans methods //////////////////////
|
||||||
|
public String getName() {
|
||||||
|
return LFUCache.class.getName();
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getVersion() {
|
||||||
|
return SolrCore.version;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getDescription() {
|
||||||
|
return description;
|
||||||
|
}
|
||||||
|
|
||||||
|
public Category getCategory() {
|
||||||
|
return Category.CACHE;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getSourceId() {
|
||||||
|
return "$Id: LFUCache.java 1170772 2011-09-14 19:09:56Z sarowe $";
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getSource() {
|
||||||
|
return "$URL: http://svn.apache.org/repos/asf/lucene/dev/branches/branch_3x/solr/core/src/java/org/apache/solr/search/LFUCache.java $";
|
||||||
|
}
|
||||||
|
|
||||||
|
public URL[] getDocs() {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
// returns a ratio, not a percent.
|
||||||
|
private static String calcHitRatio(long lookups, long hits) {
|
||||||
|
if (lookups == 0) return "0.00";
|
||||||
|
if (lookups == hits) return "1.00";
|
||||||
|
int hundredths = (int) (hits * 100 / lookups); // rounded down
|
||||||
|
if (hundredths < 10) return "0.0" + hundredths;
|
||||||
|
return "0." + hundredths;
|
||||||
|
}
|
||||||
|
|
||||||
|
public NamedList getStatistics() {
|
||||||
|
NamedList<Serializable> lst = new SimpleOrderedMap<Serializable>();
|
||||||
|
if (cache == null) return lst;
|
||||||
|
ConcurrentLFUCache.Stats stats = cache.getStats();
|
||||||
|
long lookups = stats.getCumulativeLookups();
|
||||||
|
long hits = stats.getCumulativeHits();
|
||||||
|
long inserts = stats.getCumulativePuts();
|
||||||
|
long evictions = stats.getCumulativeEvictions();
|
||||||
|
long size = stats.getCurrentSize();
|
||||||
|
|
||||||
|
lst.add("lookups", lookups);
|
||||||
|
lst.add("hits", hits);
|
||||||
|
lst.add("hitratio", calcHitRatio(lookups, hits));
|
||||||
|
lst.add("inserts", inserts);
|
||||||
|
lst.add("evictions", evictions);
|
||||||
|
lst.add("size", size);
|
||||||
|
|
||||||
|
lst.add("warmupTime", warmupTime);
|
||||||
|
lst.add("timeDecay", timeDecay);
|
||||||
|
|
||||||
|
long clookups = 0;
|
||||||
|
long chits = 0;
|
||||||
|
long cinserts = 0;
|
||||||
|
long cevictions = 0;
|
||||||
|
|
||||||
|
// NOTE: It is safe to iterate on a CopyOnWriteArrayList
|
||||||
|
for (ConcurrentLFUCache.Stats statistiscs : statsList) {
|
||||||
|
clookups += statistiscs.getCumulativeLookups();
|
||||||
|
chits += statistiscs.getCumulativeHits();
|
||||||
|
cinserts += statistiscs.getCumulativePuts();
|
||||||
|
cevictions += statistiscs.getCumulativeEvictions();
|
||||||
|
}
|
||||||
|
lst.add("cumulative_lookups", clookups);
|
||||||
|
lst.add("cumulative_hits", chits);
|
||||||
|
lst.add("cumulative_hitratio", calcHitRatio(clookups, chits));
|
||||||
|
lst.add("cumulative_inserts", cinserts);
|
||||||
|
lst.add("cumulative_evictions", cevictions);
|
||||||
|
|
||||||
|
if (showItems != 0) {
|
||||||
|
Map items = cache.getMostUsedItems(showItems == -1 ? Integer.MAX_VALUE : showItems);
|
||||||
|
for (Map.Entry e : (Set<Map.Entry>) items.entrySet()) {
|
||||||
|
Object k = e.getKey();
|
||||||
|
Object v = e.getValue();
|
||||||
|
|
||||||
|
String ks = "item_" + k;
|
||||||
|
String vs = v.toString();
|
||||||
|
lst.add(ks, vs);
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
return lst;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String toString() {
|
||||||
|
return name + getStatistics().toString();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
package org.apache.solr.search;
|
||||||
|
/**
|
||||||
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||||
|
* contributor license agreements. See the NOTICE file distributed with
|
||||||
|
* this work for additional information regarding copyright ownership.
|
||||||
|
* The ASF 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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
import org.apache.solr.common.SolrException;
|
||||||
|
import org.apache.solr.common.util.NamedList;
|
||||||
|
import org.apache.solr.common.util.SimpleOrderedMap;
|
||||||
|
import org.apache.solr.core.SolrCore;
|
||||||
|
import org.apache.solr.util.ConcurrentLFUCache;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.io.Serializable;
|
||||||
|
import java.net.URL;
|
||||||
|
import java.util.List;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.Set;
|
||||||
|
import java.util.concurrent.CopyOnWriteArrayList;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* SolrCache based on ConcurrentLFUCache implementation.
|
||||||
|
* <p/>
|
||||||
|
* This implementation does not use a separate cleanup thread. Instead it uses the calling thread
|
||||||
|
* itself to do the cleanup when the size of the cache exceeds certain limits.
|
||||||
|
* <p/>
|
||||||
|
* Also see <a href="http://wiki.apache.org/solr/SolrCaching">SolrCaching</a>
|
||||||
|
* <p/>
|
||||||
|
* <b>This API is experimental and subject to change</b>
|
||||||
|
*
|
||||||
|
* @version $Id: LFUCache.java 1170772 2011-09-14 19:09:56Z sarowe $
|
||||||
|
* @see org.apache.solr.util.ConcurrentLFUCache
|
||||||
|
* @see org.apache.solr.search.SolrCache
|
||||||
|
* @since solr 3.6
|
||||||
|
*/
|
||||||
|
public class LFUCache<K, V> implements SolrCache<K, V> {
|
||||||
|
|
||||||
|
// contains the statistics objects for all open caches of the same type
|
||||||
|
private List<ConcurrentLFUCache.Stats> statsList;
|
||||||
|
|
||||||
|
private long warmupTime = 0;
|
||||||
|
|
||||||
|
private String name;
|
||||||
|
private int autowarmCount;
|
||||||
|
private State state;
|
||||||
|
private CacheRegenerator regenerator;
|
||||||
|
private String description = "Concurrent LFU Cache";
|
||||||
|
private ConcurrentLFUCache<K, V> cache;
|
||||||
|
private int showItems = 0;
|
||||||
|
private Boolean timeDecay = true;
|
||||||
|
|
||||||
|
public Object init(Map args, Object persistence, CacheRegenerator regenerator) {
|
||||||
|
state = State.CREATED;
|
||||||
|
this.regenerator = regenerator;
|
||||||
|
name = (String) args.get("name");
|
||||||
|
String str = (String) args.get("size");
|
||||||
|
int limit = str == null ? 1024 : Integer.parseInt(str);
|
||||||
|
int minLimit;
|
||||||
|
str = (String) args.get("minSize");
|
||||||
|
if (str == null) {
|
||||||
|
minLimit = (int) (limit * 0.9);
|
||||||
|
} else {
|
||||||
|
minLimit = Integer.parseInt(str);
|
||||||
|
}
|
||||||
|
if (minLimit == 0) minLimit = 1;
|
||||||
|
if (limit <= minLimit) limit = minLimit + 1;
|
||||||
|
|
||||||
|
int acceptableSize;
|
||||||
|
str = (String) args.get("acceptableSize");
|
||||||
|
if (str == null) {
|
||||||
|
acceptableSize = (int) (limit * 0.95);
|
||||||
|
} else {
|
||||||
|
acceptableSize = Integer.parseInt(str);
|
||||||
|
}
|
||||||
|
// acceptable limit should be somewhere between minLimit and limit
|
||||||
|
acceptableSize = Math.max(minLimit, acceptableSize);
|
||||||
|
|
||||||
|
str = (String) args.get("initialSize");
|
||||||
|
final int initialSize = str == null ? limit : Integer.parseInt(str);
|
||||||
|
str = (String) args.get("autowarmCount");
|
||||||
|
autowarmCount = str == null ? 0 : Integer.parseInt(str);
|
||||||
|
str = (String) args.get("cleanupThread");
|
||||||
|
boolean newThread = str == null ? false : Boolean.parseBoolean(str);
|
||||||
|
|
||||||
|
str = (String) args.get("showItems");
|
||||||
|
showItems = str == null ? 0 : Integer.parseInt(str);
|
||||||
|
|
||||||
|
// Don't make this "efficient" by removing the test, default is true and omitting the param will make it false.
|
||||||
|
str = (String) args.get("timeDecay");
|
||||||
|
timeDecay = (str == null) ? true : Boolean.parseBoolean(str);
|
||||||
|
|
||||||
|
description = "Concurrent LFU Cache(maxSize=" + limit + ", initialSize=" + initialSize +
|
||||||
|
", minSize=" + minLimit + ", acceptableSize=" + acceptableSize + ", cleanupThread=" + newThread +
|
||||||
|
", timeDecay=" + Boolean.toString(timeDecay);
|
||||||
|
if (autowarmCount > 0) {
|
||||||
|
description += ", autowarmCount=" + autowarmCount + ", regenerator=" + regenerator;
|
||||||
|
}
|
||||||
|
description += ')';
|
||||||
|
|
||||||
|
cache = new ConcurrentLFUCache<K, V>(limit, minLimit, acceptableSize, initialSize, newThread, false, null, timeDecay);
|
||||||
|
cache.setAlive(false);
|
||||||
|
|
||||||
|
statsList = (List<ConcurrentLFUCache.Stats>) persistence;
|
||||||
|
if (statsList == null) {
|
||||||
|
// must be the first time a cache of this type is being created
|
||||||
|
// Use a CopyOnWriteArrayList since puts are very rare and iteration may be a frequent operation
|
||||||
|
// because it is used in getStatistics()
|
||||||
|
statsList = new CopyOnWriteArrayList<ConcurrentLFUCache.Stats>();
|
||||||
|
|
||||||
|
// the first entry will be for cumulative stats of caches that have been closed.
|
||||||
|
statsList.add(new ConcurrentLFUCache.Stats());
|
||||||
|
}
|
||||||
|
statsList.add(cache.getStats());
|
||||||
|
return statsList;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String name() {
|
||||||
|
return name;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int size() {
|
||||||
|
return cache.size();
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
public V put(K key, V value) {
|
||||||
|
return cache.put(key, value);
|
||||||
|
}
|
||||||
|
|
||||||
|
public V get(K key) {
|
||||||
|
return cache.get(key);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void clear() {
|
||||||
|
cache.clear();
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setState(State state) {
|
||||||
|
this.state = state;
|
||||||
|
cache.setAlive(state == State.LIVE);
|
||||||
|
}
|
||||||
|
|
||||||
|
public State getState() {
|
||||||
|
return state;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void warm(SolrIndexSearcher searcher, SolrCache old) throws IOException {
|
||||||
|
if (regenerator == null) return;
|
||||||
|
long warmingStartTime = System.currentTimeMillis();
|
||||||
|
LFUCache other = (LFUCache) old;
|
||||||
|
// warm entries
|
||||||
|
if (autowarmCount != 0) {
|
||||||
|
int sz = other.size();
|
||||||
|
if (autowarmCount != -1) sz = Math.min(sz, autowarmCount);
|
||||||
|
Map items = other.cache.getMostUsedItems(sz);
|
||||||
|
Map.Entry[] itemsArr = new Map.Entry[items.size()];
|
||||||
|
int counter = 0;
|
||||||
|
for (Object mapEntry : items.entrySet()) {
|
||||||
|
itemsArr[counter++] = (Map.Entry) mapEntry;
|
||||||
|
}
|
||||||
|
for (int i = itemsArr.length - 1; i >= 0; i--) {
|
||||||
|
try {
|
||||||
|
boolean continueRegen = regenerator.regenerateItem(searcher,
|
||||||
|
this, old, itemsArr[i].getKey(), itemsArr[i].getValue());
|
||||||
|
if (!continueRegen) break;
|
||||||
|
} catch (Throwable e) {
|
||||||
|
SolrException.log(log, "Error during auto-warming of key:" + itemsArr[i].getKey(), e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
warmupTime = System.currentTimeMillis() - warmingStartTime;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
public void close() {
|
||||||
|
// add the stats to the cumulative stats object (the first in the statsList)
|
||||||
|
statsList.get(0).add(cache.getStats());
|
||||||
|
statsList.remove(cache.getStats());
|
||||||
|
cache.destroy();
|
||||||
|
}
|
||||||
|
|
||||||
|
//////////////////////// SolrInfoMBeans methods //////////////////////
|
||||||
|
public String getName() {
|
||||||
|
return LFUCache.class.getName();
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getVersion() {
|
||||||
|
return SolrCore.version;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getDescription() {
|
||||||
|
return description;
|
||||||
|
}
|
||||||
|
|
||||||
|
public Category getCategory() {
|
||||||
|
return Category.CACHE;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getSourceId() {
|
||||||
|
return "$Id: LFUCache.java 1170772 2011-09-14 19:09:56Z sarowe $";
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getSource() {
|
||||||
|
return "$URL: http://svn.apache.org/repos/asf/lucene/dev/branches/branch_3x/solr/core/src/java/org/apache/solr/search/LFUCache.java $";
|
||||||
|
}
|
||||||
|
|
||||||
|
public URL[] getDocs() {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
// returns a ratio, not a percent.
|
||||||
|
private static String calcHitRatio(long lookups, long hits) {
|
||||||
|
if (lookups == 0) return "0.00";
|
||||||
|
if (lookups == hits) return "1.00";
|
||||||
|
int hundredths = (int) (hits * 100 / lookups); // rounded down
|
||||||
|
if (hundredths < 10) return "0.0" + hundredths;
|
||||||
|
return "0." + hundredths;
|
||||||
|
}
|
||||||
|
|
||||||
|
public NamedList getStatistics() {
|
||||||
|
NamedList<Serializable> lst = new SimpleOrderedMap<Serializable>();
|
||||||
|
if (cache == null) return lst;
|
||||||
|
ConcurrentLFUCache.Stats stats = cache.getStats();
|
||||||
|
long lookups = stats.getCumulativeLookups();
|
||||||
|
long hits = stats.getCumulativeHits();
|
||||||
|
long inserts = stats.getCumulativePuts();
|
||||||
|
long evictions = stats.getCumulativeEvictions();
|
||||||
|
long size = stats.getCurrentSize();
|
||||||
|
|
||||||
|
lst.add("lookups", lookups);
|
||||||
|
lst.add("hits", hits);
|
||||||
|
lst.add("hitratio", calcHitRatio(lookups, hits));
|
||||||
|
lst.add("inserts", inserts);
|
||||||
|
lst.add("evictions", evictions);
|
||||||
|
lst.add("size", size);
|
||||||
|
|
||||||
|
lst.add("warmupTime", warmupTime);
|
||||||
|
lst.add("timeDecay", timeDecay);
|
||||||
|
|
||||||
|
long clookups = 0;
|
||||||
|
long chits = 0;
|
||||||
|
long cinserts = 0;
|
||||||
|
long cevictions = 0;
|
||||||
|
|
||||||
|
// NOTE: It is safe to iterate on a CopyOnWriteArrayList
|
||||||
|
for (ConcurrentLFUCache.Stats statistiscs : statsList) {
|
||||||
|
clookups += statistiscs.getCumulativeLookups();
|
||||||
|
chits += statistiscs.getCumulativeHits();
|
||||||
|
cinserts += statistiscs.getCumulativePuts();
|
||||||
|
cevictions += statistiscs.getCumulativeEvictions();
|
||||||
|
}
|
||||||
|
lst.add("cumulative_lookups", clookups);
|
||||||
|
lst.add("cumulative_hits", chits);
|
||||||
|
lst.add("cumulative_hitratio", calcHitRatio(clookups, chits));
|
||||||
|
lst.add("cumulative_inserts", cinserts);
|
||||||
|
lst.add("cumulative_evictions", cevictions);
|
||||||
|
|
||||||
|
if (showItems != 0) {
|
||||||
|
Map items = cache.getMostUsedItems(showItems == -1 ? Integer.MAX_VALUE : showItems);
|
||||||
|
for (Map.Entry e : (Set<Map.Entry>) items.entrySet()) {
|
||||||
|
Object k = e.getKey();
|
||||||
|
Object v = e.getValue();
|
||||||
|
|
||||||
|
String ks = "item_" + k;
|
||||||
|
String vs = v.toString();
|
||||||
|
lst.add(ks, vs);
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
return lst;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String toString() {
|
||||||
|
return name + getStatistics().toString();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,111 @@
|
||||||
|
<!--
|
||||||
|
Licensed to the Apache Software Foundation (ASF) under one or more
|
||||||
|
contributor license agreements. See the NOTICE file distributed with
|
||||||
|
this work for additional information regarding copyright ownership.
|
||||||
|
The ASF 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.
|
||||||
|
-->
|
||||||
|
<config>
|
||||||
|
<luceneMatchVersion>${tests.luceneMatchVersion:LUCENE_CURRENT}</luceneMatchVersion>
|
||||||
|
<query>
|
||||||
|
<cache name="lfuCacheDecayFalse"
|
||||||
|
class="solr.search.LFUCache"
|
||||||
|
size="10"
|
||||||
|
initialSize="9"
|
||||||
|
timeDecay="false" />
|
||||||
|
|
||||||
|
<cache name="lfuCacheDecayTrue"
|
||||||
|
class="solr.search.LFUCache"
|
||||||
|
size="10"
|
||||||
|
initialSize="9"
|
||||||
|
timeDecay="true" />
|
||||||
|
|
||||||
|
<cache name="lfuCacheDecayDefault"
|
||||||
|
class="solr.search.LFUCache"
|
||||||
|
size="10"
|
||||||
|
initialSize="9" />
|
||||||
|
</query>
|
||||||
|
</config>
|
||||||
|
<!--
|
||||||
|
Licensed to the Apache Software Foundation (ASF) under one or more
|
||||||
|
contributor license agreements. See the NOTICE file distributed with
|
||||||
|
this work for additional information regarding copyright ownership.
|
||||||
|
The ASF 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.
|
||||||
|
-->
|
||||||
|
<config>
|
||||||
|
<luceneMatchVersion>${tests.luceneMatchVersion:LUCENE_CURRENT}</luceneMatchVersion>
|
||||||
|
<query>
|
||||||
|
<cache name="lfuCacheDecayFalse"
|
||||||
|
class="solr.search.LFUCache"
|
||||||
|
size="10"
|
||||||
|
initialSize="9"
|
||||||
|
timeDecay="false" />
|
||||||
|
|
||||||
|
<cache name="lfuCacheDecayTrue"
|
||||||
|
class="solr.search.LFUCache"
|
||||||
|
size="10"
|
||||||
|
initialSize="9"
|
||||||
|
timeDecay="true" />
|
||||||
|
|
||||||
|
<cache name="lfuCacheDecayDefault"
|
||||||
|
class="solr.search.LFUCache"
|
||||||
|
size="10"
|
||||||
|
initialSize="9" />
|
||||||
|
</query>
|
||||||
|
</config>
|
||||||
|
<!--
|
||||||
|
Licensed to the Apache Software Foundation (ASF) under one or more
|
||||||
|
contributor license agreements. See the NOTICE file distributed with
|
||||||
|
this work for additional information regarding copyright ownership.
|
||||||
|
The ASF licenses this file to You under the Apache License, Version 2.0
|
||||||
|
(the "License"); you may not use this file except in compliance with
|
||||||
|
the License. You may obtain a copy of the License at
|
||||||
|
|
||||||
|
http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
|
||||||
|
Unless required by applicable law or agreed to in writing, software
|
||||||
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
See the License for the specific language governing permissions and
|
||||||
|
limitations under the License.
|
||||||
|
-->
|
||||||
|
<config>
|
||||||
|
<luceneMatchVersion>${tests.luceneMatchVersion:LUCENE_CURRENT}</luceneMatchVersion>
|
||||||
|
<query>
|
||||||
|
<cache name="lfuCacheDecayFalse"
|
||||||
|
class="solr.search.LFUCache"
|
||||||
|
size="10"
|
||||||
|
initialSize="9"
|
||||||
|
timeDecay="false" />
|
||||||
|
|
||||||
|
<cache name="lfuCacheDecayTrue"
|
||||||
|
class="solr.search.LFUCache"
|
||||||
|
size="10"
|
||||||
|
initialSize="9"
|
||||||
|
timeDecay="true" />
|
||||||
|
|
||||||
|
<cache name="lfuCacheDecayDefault"
|
||||||
|
class="solr.search.LFUCache"
|
||||||
|
size="10"
|
||||||
|
initialSize="9" />
|
||||||
|
</query>
|
||||||
|
</config>
|
||||||
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue