public void testSimpleSkip() throws IOException {
Directory dir = new CountingRAMDirectory(new RAMDirectory());
IndexWriter writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new PayloadAnalyzer())
.setCodec(_TestUtil.alwaysPostingsFormat(new Lucene40PostingsFormat()))
.setMergePolicy(newLogMergePolicy()));
Term term = new Term("test", "a");
for (int i = 0; i < 5000; i++) {
Document d1 = new Document();
d1.add(newTextField(term.field(), term.text(), Field.Store.NO));
writer.addDocument(d1);
}
writer.commit();
writer.forceMerge(1);
writer.close();
AtomicReader reader = getOnlySegmentReader(DirectoryReader.open(dir));
for (int i = 0; i < 2; i++) {
counter = 0;
DocsAndPositionsEnum tp = reader.termPositionsEnum(term);
checkSkipTo(tp, 14, 185); // no skips
checkSkipTo(tp, 17, 190); // one skip on level 0
checkSkipTo(tp, 287, 200); // one skip on level 1, two on level 0
// this test would fail if we had only one skip level,
// because than more bytes would be read from the freqStream
checkSkipTo(tp, 4800, 250); // one skip on level 2
}
}
private void doTest(Random random, PrintWriter out, boolean useCompoundFiles, int MAX_DOCS)
throws Exception {
Directory directory = newDirectory();
Analyzer analyzer = new MockAnalyzer(random);
IndexWriterConfig conf = newIndexWriterConfig(analyzer);
final MergePolicy mp = conf.getMergePolicy();
mp.setNoCFSRatio(useCompoundFiles ? 1.0 : 0.0);
IndexWriter writer = new IndexWriter(directory, conf);
if (VERBOSE) {
System.out.println("TEST: now build index MAX_DOCS=" + MAX_DOCS);
}
for (int j = 0; j < MAX_DOCS; j++) {
Document d = new Document();
d.add(newTextField(PRIORITY_FIELD, HIGH_PRIORITY, Field.Store.YES));
d.add(newTextField(ID_FIELD, Integer.toString(j), Field.Store.YES));
writer.addDocument(d);
}
writer.close();
// try a search without OR
IndexReader reader = DirectoryReader.open(directory);
IndexSearcher searcher = newSearcher(reader);
Query query = new TermQuery(new Term(PRIORITY_FIELD, HIGH_PRIORITY));
out.println("Query: " + query.toString(PRIORITY_FIELD));
if (VERBOSE) {
System.out.println("TEST: search query=" + query);
}
final Sort sort = new Sort(SortField.FIELD_SCORE, new SortField(ID_FIELD, SortField.Type.INT));
ScoreDoc[] hits = searcher.search(query, null, MAX_DOCS, sort).scoreDocs;
printHits(out, hits, searcher);
checkHits(hits, MAX_DOCS, searcher);
// try a new search with OR
searcher = newSearcher(reader);
hits = null;
BooleanQuery booleanQuery = new BooleanQuery();
booleanQuery.add(
new TermQuery(new Term(PRIORITY_FIELD, HIGH_PRIORITY)), BooleanClause.Occur.SHOULD);
booleanQuery.add(
new TermQuery(new Term(PRIORITY_FIELD, MED_PRIORITY)), BooleanClause.Occur.SHOULD);
out.println("Query: " + booleanQuery.toString(PRIORITY_FIELD));
hits = searcher.search(booleanQuery, null, MAX_DOCS, sort).scoreDocs;
printHits(out, hits, searcher);
checkHits(hits, MAX_DOCS, searcher);
reader.close();
directory.close();
}
// LUCENE-1274
public void testPrepareCommitNoChanges() throws IOException {
Directory dir = newDirectory();
IndexWriter writer =
new IndexWriter(
dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
writer.prepareCommit();
writer.commit();
writer.close();
IndexReader reader = DirectoryReader.open(dir);
assertEquals(0, reader.numDocs());
reader.close();
dir.close();
}
/*
* Simple test for "commit on close": open writer then
* add a bunch of docs, making sure reader does not see
* these docs until writer is closed.
*/
public void testCommitOnClose() throws IOException {
Directory dir = newDirectory();
IndexWriter writer =
new IndexWriter(
dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
for (int i = 0; i < 14; i++) {
TestIndexWriter.addDoc(writer);
}
writer.close();
Term searchTerm = new Term("content", "aaa");
DirectoryReader reader = DirectoryReader.open(dir);
IndexSearcher searcher = new IndexSearcher(reader);
ScoreDoc[] hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
assertEquals("first number of hits", 14, hits.length);
reader.close();
reader = DirectoryReader.open(dir);
writer =
new IndexWriter(
dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 11; j++) {
TestIndexWriter.addDoc(writer);
}
IndexReader r = DirectoryReader.open(dir);
searcher = new IndexSearcher(r);
hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
assertEquals("reader incorrectly sees changes from writer", 14, hits.length);
r.close();
assertTrue("reader should have still been current", reader.isCurrent());
}
// Now, close the writer:
writer.close();
assertFalse("reader should not be current now", reader.isCurrent());
IndexReader r = DirectoryReader.open(dir);
searcher = new IndexSearcher(r);
hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
assertEquals("reader did not see changes after writer was closed", 47, hits.length);
r.close();
reader.close();
dir.close();
}
public void testZeroCommits() throws Exception {
// Tests that if we don't call commit(), the directory has 0 commits. This has
// changed since LUCENE-2386, where before IW would always commit on a fresh
// new index.
Directory dir = newDirectory();
IndexWriter writer =
new IndexWriter(
dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
try {
DirectoryReader.listCommits(dir);
fail("listCommits should have thrown an exception over empty index");
} catch (IndexNotFoundException e) {
// that's expected !
}
// No changes still should generate a commit, because it's a new index.
writer.close();
assertEquals("expected 1 commits!", 1, DirectoryReader.listCommits(dir).size());
dir.close();
}
// LUCENE-1274: test writer.prepareCommit()
public void testPrepareCommitRollback() throws IOException {
MockDirectoryWrapper dir = newDirectory();
dir.setPreventDoubleWrite(false);
IndexWriter writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMaxBufferedDocs(2)
.setMergePolicy(newLogMergePolicy(5)));
writer.commit();
for (int i = 0; i < 23; i++) TestIndexWriter.addDoc(writer);
DirectoryReader reader = DirectoryReader.open(dir);
assertEquals(0, reader.numDocs());
writer.prepareCommit();
IndexReader reader2 = DirectoryReader.open(dir);
assertEquals(0, reader2.numDocs());
writer.rollback();
IndexReader reader3 = DirectoryReader.openIfChanged(reader);
assertNull(reader3);
assertEquals(0, reader.numDocs());
assertEquals(0, reader2.numDocs());
reader.close();
reader2.close();
writer =
new IndexWriter(
dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
for (int i = 0; i < 17; i++) TestIndexWriter.addDoc(writer);
reader = DirectoryReader.open(dir);
assertEquals(0, reader.numDocs());
reader.close();
writer.prepareCommit();
reader = DirectoryReader.open(dir);
assertEquals(0, reader.numDocs());
reader.close();
writer.commit();
reader = DirectoryReader.open(dir);
assertEquals(17, reader.numDocs());
reader.close();
writer.close();
dir.close();
}
// LUCENE-1044: test writer.commit() when ac=false
public void testForceCommit() throws IOException {
Directory dir = newDirectory();
IndexWriter writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMaxBufferedDocs(2)
.setMergePolicy(newLogMergePolicy(5)));
writer.commit();
for (int i = 0; i < 23; i++) TestIndexWriter.addDoc(writer);
DirectoryReader reader = DirectoryReader.open(dir);
assertEquals(0, reader.numDocs());
writer.commit();
DirectoryReader reader2 = DirectoryReader.openIfChanged(reader);
assertNotNull(reader2);
assertEquals(0, reader.numDocs());
assertEquals(23, reader2.numDocs());
reader.close();
for (int i = 0; i < 17; i++) TestIndexWriter.addDoc(writer);
assertEquals(23, reader2.numDocs());
reader2.close();
reader = DirectoryReader.open(dir);
assertEquals(23, reader.numDocs());
reader.close();
writer.commit();
reader = DirectoryReader.open(dir);
assertEquals(40, reader.numDocs());
reader.close();
writer.close();
dir.close();
}
public void testTermDocsEnum() throws Exception {
Directory dir = newDirectory();
IndexWriter w =
new IndexWriter(
dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
Document d = new Document();
d.add(newStringField("f", "j", Field.Store.NO));
w.addDocument(d);
w.commit();
w.addDocument(d);
IndexReader r = w.getReader();
w.close();
DocsEnum de = MultiFields.getTermDocsEnum(r, null, "f", new BytesRef("j"));
assertEquals(0, de.nextDoc());
assertEquals(1, de.nextDoc());
assertEquals(DocIdSetIterator.NO_MORE_DOCS, de.nextDoc());
r.close();
dir.close();
}
public void testSeparateEnums() throws Exception {
Directory dir = newDirectory();
IndexWriter w =
new IndexWriter(
dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
Document d = new Document();
d.add(newStringField("f", "j", Field.Store.NO));
w.addDocument(d);
w.commit();
w.addDocument(d);
IndexReader r = w.getReader();
w.close();
DocsEnum d1 = _TestUtil.docs(random(), r, "f", new BytesRef("j"), null, null, 0);
DocsEnum d2 = _TestUtil.docs(random(), r, "f", new BytesRef("j"), null, null, 0);
assertEquals(0, d1.nextDoc());
assertEquals(0, d2.nextDoc());
r.close();
dir.close();
}
// LUCENE-1382
public void testCommitUserData() throws IOException {
Directory dir = newDirectory();
IndexWriter w =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMaxBufferedDocs(2));
for (int j = 0; j < 17; j++) TestIndexWriter.addDoc(w);
w.close();
DirectoryReader r = DirectoryReader.open(dir);
// commit(Map) never called for this index
assertEquals(0, r.getIndexCommit().getUserData().size());
r.close();
w =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMaxBufferedDocs(2));
for (int j = 0; j < 17; j++) TestIndexWriter.addDoc(w);
Map<String, String> data = new HashMap<String, String>();
data.put("label", "test1");
w.commit(data);
w.close();
r = DirectoryReader.open(dir);
assertEquals("test1", r.getIndexCommit().getUserData().get("label"));
r.close();
w =
new IndexWriter(
dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
w.forceMerge(1);
w.close();
dir.close();
}
public void testRandom() throws Exception {
int num = atLeast(2);
for (int iter = 0; iter < num; iter++) {
if (VERBOSE) {
System.out.println("TEST: iter=" + iter);
}
Directory dir = newDirectory();
IndexWriter w =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMergePolicy(NoMergePolicy.COMPOUND_FILES));
_TestUtil.keepFullyDeletedSegments(w);
Map<BytesRef, List<Integer>> docs = new HashMap<BytesRef, List<Integer>>();
Set<Integer> deleted = new HashSet<Integer>();
List<BytesRef> terms = new ArrayList<BytesRef>();
int numDocs = _TestUtil.nextInt(random(), 1, 100 * RANDOM_MULTIPLIER);
Document doc = new Document();
Field f = newStringField("field", "", Field.Store.NO);
doc.add(f);
Field id = newStringField("id", "", Field.Store.NO);
doc.add(id);
boolean onlyUniqueTerms = random().nextBoolean();
if (VERBOSE) {
System.out.println("TEST: onlyUniqueTerms=" + onlyUniqueTerms + " numDocs=" + numDocs);
}
Set<BytesRef> uniqueTerms = new HashSet<BytesRef>();
for (int i = 0; i < numDocs; i++) {
if (!onlyUniqueTerms && random().nextBoolean() && terms.size() > 0) {
// re-use existing term
BytesRef term = terms.get(random().nextInt(terms.size()));
docs.get(term).add(i);
f.setStringValue(term.utf8ToString());
} else {
String s = _TestUtil.randomUnicodeString(random(), 10);
BytesRef term = new BytesRef(s);
if (!docs.containsKey(term)) {
docs.put(term, new ArrayList<Integer>());
}
docs.get(term).add(i);
terms.add(term);
uniqueTerms.add(term);
f.setStringValue(s);
}
id.setStringValue("" + i);
w.addDocument(doc);
if (random().nextInt(4) == 1) {
w.commit();
}
if (i > 0 && random().nextInt(20) == 1) {
int delID = random().nextInt(i);
deleted.add(delID);
w.deleteDocuments(new Term("id", "" + delID));
if (VERBOSE) {
System.out.println("TEST: delete " + delID);
}
}
}
if (VERBOSE) {
List<BytesRef> termsList = new ArrayList<BytesRef>(uniqueTerms);
Collections.sort(termsList, BytesRef.getUTF8SortedAsUTF16Comparator());
System.out.println("TEST: terms in UTF16 order:");
for (BytesRef b : termsList) {
System.out.println(" " + UnicodeUtil.toHexString(b.utf8ToString()) + " " + b);
for (int docID : docs.get(b)) {
if (deleted.contains(docID)) {
System.out.println(" " + docID + " (deleted)");
} else {
System.out.println(" " + docID);
}
}
}
}
IndexReader reader = w.getReader();
w.close();
if (VERBOSE) {
System.out.println("TEST: reader=" + reader);
}
Bits liveDocs = MultiFields.getLiveDocs(reader);
for (int delDoc : deleted) {
assertFalse(liveDocs.get(delDoc));
}
for (int i = 0; i < 100; i++) {
BytesRef term = terms.get(random().nextInt(terms.size()));
if (VERBOSE) {
System.out.println(
"TEST: seek term=" + UnicodeUtil.toHexString(term.utf8ToString()) + " " + term);
}
DocsEnum docsEnum = _TestUtil.docs(random(), reader, "field", term, liveDocs, null, 0);
assertNotNull(docsEnum);
for (int docID : docs.get(term)) {
if (!deleted.contains(docID)) {
assertEquals(docID, docsEnum.nextDoc());
}
}
assertEquals(DocIdSetIterator.NO_MORE_DOCS, docsEnum.nextDoc());
}
reader.close();
dir.close();
}
}
/*
* Simple test for "commit on close": open writer, then
* add a bunch of docs, making sure reader does not see
* them until writer has closed. Then instead of
* closing the writer, call abort and verify reader sees
* nothing was added. Then verify we can open the index
* and add docs to it.
*/
public void testCommitOnCloseAbort() throws IOException {
MockDirectoryWrapper dir = newDirectory();
IndexWriter writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMaxBufferedDocs(10));
for (int i = 0; i < 14; i++) {
TestIndexWriter.addDoc(writer);
}
writer.close();
Term searchTerm = new Term("content", "aaa");
IndexReader reader = DirectoryReader.open(dir);
IndexSearcher searcher = new IndexSearcher(reader);
ScoreDoc[] hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
assertEquals("first number of hits", 14, hits.length);
reader.close();
writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setOpenMode(OpenMode.APPEND)
.setMaxBufferedDocs(10));
for (int j = 0; j < 17; j++) {
TestIndexWriter.addDoc(writer);
}
// Delete all docs:
writer.deleteDocuments(searchTerm);
reader = DirectoryReader.open(dir);
searcher = new IndexSearcher(reader);
hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
assertEquals("reader incorrectly sees changes from writer", 14, hits.length);
reader.close();
// Now, close the writer:
writer.rollback();
TestIndexWriter.assertNoUnreferencedFiles(dir, "unreferenced files remain after rollback()");
reader = DirectoryReader.open(dir);
searcher = new IndexSearcher(reader);
hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
assertEquals("saw changes after writer.abort", 14, hits.length);
reader.close();
// Now make sure we can re-open the index, add docs,
// and all is good:
writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setOpenMode(OpenMode.APPEND)
.setMaxBufferedDocs(10));
// On abort, writer in fact may write to the same
// segments_N file:
dir.setPreventDoubleWrite(false);
for (int i = 0; i < 12; i++) {
for (int j = 0; j < 17; j++) {
TestIndexWriter.addDoc(writer);
}
IndexReader r = DirectoryReader.open(dir);
searcher = new IndexSearcher(r);
hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
assertEquals("reader incorrectly sees changes from writer", 14, hits.length);
r.close();
}
writer.close();
IndexReader r = DirectoryReader.open(dir);
searcher = new IndexSearcher(r);
hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
assertEquals("didn't see changes after close", 218, hits.length);
r.close();
dir.close();
}
public void testFutureCommit() throws Exception {
Directory dir = newDirectory();
IndexWriter w =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setIndexDeletionPolicy(NoDeletionPolicy.INSTANCE));
Document doc = new Document();
w.addDocument(doc);
// commit to "first"
Map<String, String> commitData = new HashMap<String, String>();
commitData.put("tag", "first");
w.commit(commitData);
// commit to "second"
w.addDocument(doc);
commitData.put("tag", "second");
w.commit(commitData);
w.close();
// open "first" with IndexWriter
IndexCommit commit = null;
for (IndexCommit c : DirectoryReader.listCommits(dir)) {
if (c.getUserData().get("tag").equals("first")) {
commit = c;
break;
}
}
assertNotNull(commit);
w =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setIndexDeletionPolicy(NoDeletionPolicy.INSTANCE)
.setIndexCommit(commit));
assertEquals(1, w.numDocs());
// commit IndexWriter to "third"
w.addDocument(doc);
commitData.put("tag", "third");
w.commit(commitData);
w.close();
// make sure "second" commit is still there
commit = null;
for (IndexCommit c : DirectoryReader.listCommits(dir)) {
if (c.getUserData().get("tag").equals("second")) {
commit = c;
break;
}
}
assertNotNull(commit);
dir.close();
}
/*
* Verify that calling forceMerge when writer is open for
* "commit on close" works correctly both for rollback()
* and close().
*/
public void testCommitOnCloseForceMerge() throws IOException {
MockDirectoryWrapper dir = newDirectory();
// Must disable throwing exc on double-write: this
// test uses IW.rollback which easily results in
// writing to same file more than once
dir.setPreventDoubleWrite(false);
IndexWriter writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setMaxBufferedDocs(10)
.setMergePolicy(newLogMergePolicy(10)));
for (int j = 0; j < 17; j++) {
TestIndexWriter.addDocWithIndex(writer, j);
}
writer.close();
writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setOpenMode(OpenMode.APPEND));
writer.forceMerge(1);
// Open a reader before closing (commiting) the writer:
DirectoryReader reader = DirectoryReader.open(dir);
// Reader should see index as multi-seg at this
// point:
assertTrue("Reader incorrectly sees one segment", reader.getSequentialSubReaders().size() > 1);
reader.close();
// Abort the writer:
writer.rollback();
TestIndexWriter.assertNoUnreferencedFiles(dir, "aborted writer after forceMerge");
// Open a reader after aborting writer:
reader = DirectoryReader.open(dir);
// Reader should still see index as multi-segment
assertTrue("Reader incorrectly sees one segment", reader.getSequentialSubReaders().size() > 1);
reader.close();
if (VERBOSE) {
System.out.println("TEST: do real full merge");
}
writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
.setOpenMode(OpenMode.APPEND));
writer.forceMerge(1);
writer.close();
if (VERBOSE) {
System.out.println("TEST: writer closed");
}
TestIndexWriter.assertNoUnreferencedFiles(dir, "aborted writer after forceMerge");
// Open a reader after aborting writer:
reader = DirectoryReader.open(dir);
// Reader should see index as one segment
assertEquals(
"Reader incorrectly sees more than one segment",
1,
reader.getSequentialSubReaders().size());
reader.close();
dir.close();
}
/*
* Verify that a writer with "commit on close" indeed
* cleans up the temp segments created after opening
* that are not referenced by the starting segments
* file. We check this by using MockDirectoryWrapper to
* measure max temp disk space used.
*/
public void testCommitOnCloseDiskUsage() throws IOException {
// MemoryCodec, since it uses FST, is not necessarily
// "additive", ie if you add up N small FSTs, then merge
// them, the merged result can easily be larger than the
// sum because the merged FST may use array encoding for
// some arcs (which uses more space):
final String idFormat = _TestUtil.getPostingsFormat("id");
final String contentFormat = _TestUtil.getPostingsFormat("content");
assumeFalse(
"This test cannot run with Memory codec",
idFormat.equals("Memory") || contentFormat.equals("Memory"));
MockDirectoryWrapper dir = newDirectory();
Analyzer analyzer;
if (random().nextBoolean()) {
// no payloads
analyzer =
new Analyzer() {
@Override
public TokenStreamComponents createComponents(String fieldName, Reader reader) {
return new TokenStreamComponents(
new MockTokenizer(reader, MockTokenizer.WHITESPACE, true));
}
};
} else {
// fixed length payloads
final int length = random().nextInt(200);
analyzer =
new Analyzer() {
@Override
public TokenStreamComponents createComponents(String fieldName, Reader reader) {
Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, true);
return new TokenStreamComponents(
tokenizer, new MockFixedLengthPayloadFilter(random(), tokenizer, length));
}
};
}
IndexWriter writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, analyzer)
.setMaxBufferedDocs(10)
.setReaderPooling(false)
.setMergePolicy(newLogMergePolicy(10)));
for (int j = 0; j < 30; j++) {
TestIndexWriter.addDocWithIndex(writer, j);
}
writer.close();
dir.resetMaxUsedSizeInBytes();
dir.setTrackDiskUsage(true);
long startDiskUsage = dir.getMaxUsedSizeInBytes();
writer =
new IndexWriter(
dir,
newIndexWriterConfig(TEST_VERSION_CURRENT, analyzer)
.setOpenMode(OpenMode.APPEND)
.setMaxBufferedDocs(10)
.setMergeScheduler(new SerialMergeScheduler())
.setReaderPooling(false)
.setMergePolicy(newLogMergePolicy(10)));
for (int j = 0; j < 1470; j++) {
TestIndexWriter.addDocWithIndex(writer, j);
}
long midDiskUsage = dir.getMaxUsedSizeInBytes();
dir.resetMaxUsedSizeInBytes();
writer.forceMerge(1);
writer.close();
DirectoryReader.open(dir).close();
long endDiskUsage = dir.getMaxUsedSizeInBytes();
// Ending index is 50X as large as starting index; due
// to 3X disk usage normally we allow 150X max
// transient usage. If something is wrong w/ deleter
// and it doesn't delete intermediate segments then it
// will exceed this 150X:
// System.out.println("start " + startDiskUsage + "; mid " + midDiskUsage + ";end " +
// endDiskUsage);
assertTrue(
"writer used too much space while adding documents: mid="
+ midDiskUsage
+ " start="
+ startDiskUsage
+ " end="
+ endDiskUsage
+ " max="
+ (startDiskUsage * 150),
midDiskUsage < 150 * startDiskUsage);
assertTrue(
"writer used too much space after close: endDiskUsage="
+ endDiskUsage
+ " startDiskUsage="
+ startDiskUsage
+ " max="
+ (startDiskUsage * 150),
endDiskUsage < 150 * startDiskUsage);
dir.close();
}