lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestThreadedForceMerge.java

   1 package org.apache.lucene.index;
   2
   3 /**
   4  * Licensed to the Apache Software Foundation (ASF) under one or more
   5  * contributor license agreements.  See the NOTICE file distributed with
   6  * this work for additional information regarding copyright ownership.
   7  * The ASF licenses this file to You under the Apache License, Version 2.0
   8  * (the "License"); you may not use this file except in compliance with
   9  * the License.  You may obtain a copy of the License at
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  */
  19
  20 import java.util.Random;
  21
  22 import org.apache.lucene.analysis.Analyzer;
  23 import org.apache.lucene.analysis.MockAnalyzer;
  24 import org.apache.lucene.analysis.MockTokenizer;
  25 import org.apache.lucene.document.Document;
  26 import org.apache.lucene.document.Field;
  27 import org.apache.lucene.index.IndexWriterConfig.OpenMode;
  28 import org.apache.lucene.store.Directory;
  29 import org.apache.lucene.util.English;
  30 import org.apache.lucene.util.LuceneTestCase;
  31
  32 public class TestThreadedForceMerge extends LuceneTestCase {
  33
  34   private static final Analyzer ANALYZER = new MockAnalyzer(random, MockTokenizer.SIMPLE, true);
  35
  36   private final static int NUM_THREADS = 3;
  37   //private final static int NUM_THREADS = 5;
  38
  39   private final static int NUM_ITER = 1;
  40
  41   private final static int NUM_ITER2 = 1;
  42
  43   private volatile boolean failed;
  44
  45   private void setFailed() {
  46     failed = true;
  47   }
  48
  49   public void runTest(Random random, Directory directory) throws Exception {
  50
  51     IndexWriter writer = new IndexWriter(
  52         directory,
  53         newIndexWriterConfig(TEST_VERSION_CURRENT, ANALYZER).
  54             setOpenMode(OpenMode.CREATE).
  55             setMaxBufferedDocs(2).
  56             setMergePolicy(newLogMergePolicy())
  57     );
  58
  59     for(int iter=0;iter<NUM_ITER;iter++) {
  60       final int iterFinal = iter;
  61
  62       ((LogMergePolicy) writer.getConfig().getMergePolicy()).setMergeFactor(1000);
  63
  64       for(int i=0;i<200;i++) {
  65         Document d = new Document();
  66         d.add(newField("id", Integer.toString(i), Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
  67         d.add(newField("contents", English.intToEnglish(i), Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
  68         writer.addDocument(d);
  69       }
  70
  71       ((LogMergePolicy) writer.getConfig().getMergePolicy()).setMergeFactor(4);
  72
  73       Thread[] threads = new Thread[NUM_THREADS];
  74
  75       for(int i=0;i<NUM_THREADS;i++) {
  76         final int iFinal = i;
  77         final IndexWriter writerFinal = writer;
  78         threads[i] = new Thread() {
  79           @Override
  80           public void run() {
  81             try {
  82               for(int j=0;j<NUM_ITER2;j++) {
  83                 writerFinal.forceMerge(1, false);
  84                 for(int k=0;k<17*(1+iFinal);k++) {
  85                   Document d = new Document();
  86                   d.add(newField("id", iterFinal + "_" + iFinal + "_" + j + "_" + k, Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
  87                   d.add(newField("contents", English.intToEnglish(iFinal+k), Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
  88                   writerFinal.addDocument(d);
  89                 }
  90                 for(int k=0;k<9*(1+iFinal);k++)
  91                   writerFinal.deleteDocuments(new Term("id", iterFinal + "_" + iFinal + "_" + j + "_" + k));
  92                 writerFinal.forceMerge(1);
  93               }
  94             } catch (Throwable t) {
  95               setFailed();
  96               System.out.println(Thread.currentThread().getName() + ": hit exception");
  97               t.printStackTrace(System.out);
  98             }
  99           }
 100         };
 101       }
 102
 103       for(int i=0;i<NUM_THREADS;i++)
 104         threads[i].start();
 105
 106       for(int i=0;i<NUM_THREADS;i++)
 107         threads[i].join();
 108
 109       assertTrue(!failed);
 110
 111       final int expectedDocCount = (int) ((1+iter)*(200+8*NUM_ITER2*(NUM_THREADS/2.0)*(1+NUM_THREADS)));
 112
 113       assertEquals("index=" + writer.segString() + " numDocs=" + writer.numDocs() + " maxDoc=" + writer.maxDoc() + " config=" + writer.getConfig(), expectedDocCount, writer.numDocs());
 114       assertEquals("index=" + writer.segString() + " numDocs=" + writer.numDocs() + " maxDoc=" + writer.maxDoc() + " config=" + writer.getConfig(), expectedDocCount, writer.maxDoc());
 115
 116       writer.close();
 117       writer = new IndexWriter(directory, newIndexWriterConfig(
 118           TEST_VERSION_CURRENT, ANALYZER).setOpenMode(
 119           OpenMode.APPEND).setMaxBufferedDocs(2));
 120
 121       IndexReader reader = IndexReader.open(directory, true);
 122       assertEquals("reader=" + reader, 1, reader.getSequentialSubReaders().length);
 123       assertEquals(expectedDocCount, reader.numDocs());
 124       reader.close();
 125     }
 126     writer.close();
 127   }
 128
 129   /*
 130     Run above stress test against RAMDirectory and then
 131     FSDirectory.
 132   */
 133   public void testThreadedForceMerge() throws Exception {
 134     Directory directory = newDirectory();
 135     runTest(random, directory);
 136     directory.close();
 137   }
 138 }