| /* |
| * 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. |
| */ |
| |
| package org.apache.solr.search; |
| |
| import java.net.URL; |
| |
| import org.apache.solr.common.util.NamedList; |
| import org.apache.solr.common.util.SimpleOrderedMap; |
| |
| import org.apache.solr.core.SolrCore; |
| import org.apache.solr.core.SolrInfoMBean; |
| |
| import org.apache.lucene.search.FieldCache; |
| import org.apache.lucene.search.FieldCache.CacheEntry; |
| import org.apache.lucene.util.FieldCacheSanityChecker; |
| import org.apache.lucene.util.FieldCacheSanityChecker.Insanity; |
| |
| /** |
| * A SolrInfoMBean that provides introspection of the Lucene FieldCache, this is <b>NOT</b> a cache that is managed by Solr. |
| * |
| */ |
| public class SolrFieldCacheMBean implements SolrInfoMBean { |
| |
| protected FieldCacheSanityChecker checker = new FieldCacheSanityChecker(); |
| |
| @Override |
| public String getName() { return this.getClass().getName(); } |
| @Override |
| public String getVersion() { return SolrCore.version; } |
| @Override |
| public String getDescription() { |
| return "Provides introspection of the Lucene FieldCache, " |
| + "this is **NOT** a cache that is managed by Solr."; |
| } |
| @Override |
| public Category getCategory() { return Category.CACHE; } |
| @Override |
| public String getSource() { |
| return "$URL$"; |
| } |
| @Override |
| public URL[] getDocs() { |
| return null; |
| } |
| @Override |
| public NamedList getStatistics() { |
| NamedList stats = new SimpleOrderedMap(); |
| CacheEntry[] entries = FieldCache.DEFAULT.getCacheEntries(); |
| stats.add("entries_count", entries.length); |
| for (int i = 0; i < entries.length; i++) { |
| CacheEntry e = entries[i]; |
| stats.add("entry#" + i, e.toString()); |
| } |
| |
| Insanity[] insanity = checker.check(entries); |
| |
| stats.add("insanity_count", insanity.length); |
| for (int i = 0; i < insanity.length; i++) { |
| |
| /** RAM estimation is both CPU and memory intensive... we don't want to do it unless asked. |
| // we only estimate the size of insane entries |
| for (CacheEntry e : insanity[i].getCacheEntries()) { |
| // don't re-estimate if we've already done it. |
| if (null == e.getEstimatedSize()) e.estimateSize(); |
| } |
| **/ |
| |
| stats.add("insanity#" + i, insanity[i].toString()); |
| } |
| return stats; |
| } |
| |
| } |