1 package org.apache.lucene.index;
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20 import java.io.IOException;
21 import java.util.Random;
23 import org.apache.lucene.util.LuceneTestCase;
24 import org.apache.lucene.store.Directory;
25 import org.apache.lucene.store.MockDirectoryWrapper;
26 import org.apache.lucene.store.NoLockFactory;
27 import org.apache.lucene.analysis.MockAnalyzer;
28 import org.apache.lucene.document.Document;
29 import org.apache.lucene.document.Field;
31 public class TestCrash extends LuceneTestCase {
33 private IndexWriter initIndex(Random random, boolean initialCommit) throws IOException {
34 return initIndex(random, newDirectory(), initialCommit);
37 private IndexWriter initIndex(Random random, MockDirectoryWrapper dir, boolean initialCommit) throws IOException {
38 dir.setLockFactory(NoLockFactory.getNoLockFactory());
40 IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(
41 TEST_VERSION_CURRENT, new MockAnalyzer(random)).setMaxBufferedDocs(10)
42 .setMergeScheduler(new ConcurrentMergeScheduler())
43 .setMergePolicy(newLogMergePolicy()));
44 ((ConcurrentMergeScheduler) writer.getConfig().getMergeScheduler()).setSuppressExceptions();
49 Document doc = new Document();
50 doc.add(newField("content", "aaa", Field.Store.YES, Field.Index.ANALYZED));
51 doc.add(newField("id", "0", Field.Store.YES, Field.Index.ANALYZED));
52 for(int i=0;i<157;i++)
53 writer.addDocument(doc);
58 private void crash(final IndexWriter writer) throws IOException {
59 final MockDirectoryWrapper dir = (MockDirectoryWrapper) writer.getDirectory();
60 ConcurrentMergeScheduler cms = (ConcurrentMergeScheduler) writer.getConfig().getMergeScheduler();
67 public void testCrashWhileIndexing() throws IOException {
68 // This test relies on being able to open a reader before any commit
69 // happened, so we must create an initial commit just to allow that, but
70 // before any documents were added.
71 IndexWriter writer = initIndex(random, true);
72 Directory dir = writer.getDirectory();
74 IndexReader reader = IndexReader.open(dir, false);
75 assertTrue(reader.numDocs() < 157);
80 public void testWriterAfterCrash() throws IOException {
81 // This test relies on being able to open a reader before any commit
82 // happened, so we must create an initial commit just to allow that, but
83 // before any documents were added.
84 IndexWriter writer = initIndex(random, true);
85 MockDirectoryWrapper dir = (MockDirectoryWrapper) writer.getDirectory();
86 dir.setPreventDoubleWrite(false);
88 writer = initIndex(random, dir, false);
91 IndexReader reader = IndexReader.open(dir, false);
92 assertTrue(reader.numDocs() < 314);
97 public void testCrashAfterReopen() throws IOException {
98 IndexWriter writer = initIndex(random, false);
99 MockDirectoryWrapper dir = (MockDirectoryWrapper) writer.getDirectory();
101 writer = initIndex(random, dir, false);
102 assertEquals(314, writer.maxDoc());
106 System.out.println("\n\nTEST: open reader");
107 String[] l = dir.list();
109 for(int i=0;i<l.length;i++)
110 System.out.println("file " + i + " = " + l[i] + " " +
111 dir.fileLength(l[i]) + " bytes");
114 IndexReader reader = IndexReader.open(dir, false);
115 assertTrue(reader.numDocs() >= 157);
120 public void testCrashAfterClose() throws IOException {
122 IndexWriter writer = initIndex(random, false);
123 MockDirectoryWrapper dir = (MockDirectoryWrapper) writer.getDirectory();
129 String[] l = dir.list();
131 for(int i=0;i<l.length;i++)
132 System.out.println("file " + i + " = " + l[i] + " " + dir.fileLength(l[i]) + " bytes");
135 IndexReader reader = IndexReader.open(dir, false);
136 assertEquals(157, reader.numDocs());
141 public void testCrashAfterCloseNoWait() throws IOException {
143 IndexWriter writer = initIndex(random, false);
144 MockDirectoryWrapper dir = (MockDirectoryWrapper) writer.getDirectory();
151 String[] l = dir.list();
153 for(int i=0;i<l.length;i++)
154 System.out.println("file " + i + " = " + l[i] + " " + dir.fileLength(l[i]) + " bytes");
156 IndexReader reader = IndexReader.open(dir, false);
157 assertEquals(157, reader.numDocs());
162 public void testCrashReaderDeletes() throws IOException {
164 IndexWriter writer = initIndex(random, false);
165 MockDirectoryWrapper dir = (MockDirectoryWrapper) writer.getDirectory();
168 IndexReader reader = IndexReader.open(dir, false);
169 reader.deleteDocument(3);
174 String[] l = dir.list();
176 for(int i=0;i<l.length;i++)
177 System.out.println("file " + i + " = " + l[i] + " " + dir.fileLength(l[i]) + " bytes");
179 reader = IndexReader.open(dir, false);
180 assertEquals(157, reader.numDocs());
186 public void testCrashReaderDeletesAfterClose() throws IOException {
188 IndexWriter writer = initIndex(random, false);
189 MockDirectoryWrapper dir = (MockDirectoryWrapper) writer.getDirectory();
192 IndexReader reader = IndexReader.open(dir, false);
193 reader.deleteDocument(3);
199 String[] l = dir.list();
201 for(int i=0;i<l.length;i++)
202 System.out.println("file " + i + " = " + l[i] + " " + dir.fileLength(l[i]) + " bytes");
204 reader = IndexReader.open(dir, false);
205 assertEquals(156, reader.numDocs());