@Test
public void testVersioningDeleteConflictWithFlush() {
ParsedDocument doc =
testParsedDocument(
"1", "1", "test", null, -1, -1, testDocument(), Lucene.STANDARD_ANALYZER, B_1, false);
Engine.Index index = new Engine.Index(null, newUid("1"), doc);
engine.index(index);
assertThat(index.version(), equalTo(1l));
index = new Engine.Index(null, newUid("1"), doc);
engine.index(index);
assertThat(index.version(), equalTo(2l));
engine.flush(new Engine.Flush());
Engine.Delete delete = new Engine.Delete("test", "1", newUid("1")).version(1l);
try {
engine.delete(delete);
assert false;
} catch (VersionConflictEngineException e) {
// all is well
}
// future versions should not work as well
delete = new Engine.Delete("test", "1", newUid("1")).version(3l);
try {
engine.delete(delete);
assert false;
} catch (VersionConflictEngineException e) {
// all is well
}
engine.flush(new Engine.Flush());
// now actually delete
delete = new Engine.Delete("test", "1", newUid("1")).version(2l);
engine.delete(delete);
assertThat(delete.version(), equalTo(3l));
engine.flush(new Engine.Flush());
// now check if we can index to a delete doc with version
index = new Engine.Index(null, newUid("1"), doc).version(2l);
try {
engine.index(index);
assert false;
} catch (VersionConflictEngineException e) {
// all is well
}
// we shouldn't be able to create as well
Engine.Create create = new Engine.Create(null, newUid("1"), doc).version(2l);
try {
engine.create(create);
} catch (VersionConflictEngineException e) {
// all is well
}
}
@Test
public void testSimpleRecover() throws Exception {
ParsedDocument doc =
testParsedDocument(
"1",
"1",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_1,
false);
engine.create(new Engine.Create(null, newUid("1"), doc));
engine.flush(new Engine.Flush());
engine.recover(
new Engine.RecoveryHandler() {
@Override
public void phase1(SnapshotIndexCommit snapshot) throws EngineException {
try {
engine.flush(new Engine.Flush());
assertThat("flush is not allowed in phase 3", false, equalTo(true));
} catch (FlushNotAllowedEngineException e) {
// all is well
}
}
@Override
public void phase2(Translog.Snapshot snapshot) throws EngineException {
MatcherAssert.assertThat(snapshot, TranslogSizeMatcher.translogSize(0));
try {
engine.flush(new Engine.Flush());
assertThat("flush is not allowed in phase 3", false, equalTo(true));
} catch (FlushNotAllowedEngineException e) {
// all is well
}
}
@Override
public void phase3(Translog.Snapshot snapshot) throws EngineException {
MatcherAssert.assertThat(snapshot, TranslogSizeMatcher.translogSize(0));
try {
// we can do this here since we are on the same thread
engine.flush(new Engine.Flush());
assertThat("flush is not allowed in phase 3", false, equalTo(true));
} catch (FlushNotAllowedEngineException e) {
// all is well
}
}
});
engine.flush(new Engine.Flush());
engine.close();
}
@Test
public void testRecoverWithOperationsBetweenPhase1AndPhase2() throws Exception {
ParsedDocument doc1 =
testParsedDocument(
"1",
"1",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_1,
false);
engine.create(new Engine.Create(null, newUid("1"), doc1));
engine.flush(new Engine.Flush());
ParsedDocument doc2 =
testParsedDocument(
"2",
"2",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_2,
false);
engine.create(new Engine.Create(null, newUid("2"), doc2));
engine.recover(
new Engine.RecoveryHandler() {
@Override
public void phase1(SnapshotIndexCommit snapshot) throws EngineException {}
@Override
public void phase2(Translog.Snapshot snapshot) throws EngineException {
assertThat(snapshot.hasNext(), equalTo(true));
Translog.Create create = (Translog.Create) snapshot.next();
assertThat(create.source().toBytesArray(), equalTo(B_2));
assertThat(snapshot.hasNext(), equalTo(false));
}
@Override
public void phase3(Translog.Snapshot snapshot) throws EngineException {
MatcherAssert.assertThat(snapshot, TranslogSizeMatcher.translogSize(0));
}
});
engine.flush(new Engine.Flush());
engine.close();
}
@Test
public void testVersioningIndexConflictWithFlush() {
ParsedDocument doc =
testParsedDocument(
"1", "1", "test", null, -1, -1, testDocument(), Lucene.STANDARD_ANALYZER, B_1, false);
Engine.Index index = new Engine.Index(null, newUid("1"), doc);
engine.index(index);
assertThat(index.version(), equalTo(1l));
index = new Engine.Index(null, newUid("1"), doc);
engine.index(index);
assertThat(index.version(), equalTo(2l));
engine.flush(new Engine.Flush());
index = new Engine.Index(null, newUid("1"), doc).version(1l);
try {
engine.index(index);
assert false;
} catch (VersionConflictEngineException e) {
// all is well
}
// future versions should not work as well
index = new Engine.Index(null, newUid("1"), doc).version(3l);
try {
engine.index(index);
assert false;
} catch (VersionConflictEngineException e) {
// all is well
}
}
@Test
public void testCreatedFlagAfterFlush() {
ParsedDocument doc =
testParsedDocument(
"1", "1", "test", null, -1, -1, testDocument(), Lucene.STANDARD_ANALYZER, B_1, false);
Engine.Index index = new Engine.Index(null, newUid("1"), doc);
engine.index(index);
assertTrue(index.created());
engine.delete(new Engine.Delete(null, "1", newUid("1")));
engine.flush(new Engine.Flush());
index = new Engine.Index(null, newUid("1"), doc);
engine.index(index);
assertTrue(index.created());
}
@Test
public void testVersioningCreateExistsExceptionWithFlush() {
ParsedDocument doc =
testParsedDocument(
"1", "1", "test", null, -1, -1, testDocument(), Lucene.STANDARD_ANALYZER, B_1, false);
Engine.Create create = new Engine.Create(null, newUid("1"), doc);
engine.create(create);
assertThat(create.version(), equalTo(1l));
engine.flush(new Engine.Flush());
create = new Engine.Create(null, newUid("1"), doc);
try {
engine.create(create);
assert false;
} catch (DocumentAlreadyExistsException e) {
// all is well
}
}
@Test
public void testExternalVersioningIndexConflictWithFlush() {
ParsedDocument doc =
testParsedDocument(
"1", "1", "test", null, -1, -1, testDocument(), Lucene.STANDARD_ANALYZER, B_1, false);
Engine.Index index =
new Engine.Index(null, newUid("1"), doc).versionType(VersionType.EXTERNAL).version(12);
engine.index(index);
assertThat(index.version(), equalTo(12l));
index = new Engine.Index(null, newUid("1"), doc).versionType(VersionType.EXTERNAL).version(14);
engine.index(index);
assertThat(index.version(), equalTo(14l));
engine.flush(new Engine.Flush());
index = new Engine.Index(null, newUid("1"), doc).versionType(VersionType.EXTERNAL).version(13);
try {
engine.index(index);
assert false;
} catch (VersionConflictEngineException e) {
// all is well
}
}
@Test
public void testSimpleOperations() throws Exception {
Engine.Searcher searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
searchResult.release();
// create a document
Document document = testDocumentWithTextField();
document.add(
new Field(SourceFieldMapper.NAME, B_1.toBytes(), SourceFieldMapper.Defaults.FIELD_TYPE));
ParsedDocument doc =
testParsedDocument(
"1", "1", "test", null, -1, -1, document, Lucene.STANDARD_ANALYZER, B_1, false);
engine.create(new Engine.Create(null, newUid("1"), doc));
// its not there...
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 0));
searchResult.release();
// but, we can still get it (in realtime)
Engine.GetResult getResult = engine.get(new Engine.Get(true, newUid("1")));
assertThat(getResult.exists(), equalTo(true));
assertThat(getResult.source().source.toBytesArray(), equalTo(B_1.toBytesArray()));
assertThat(getResult.docIdAndVersion(), nullValue());
// but, not there non realtime
getResult = engine.get(new Engine.Get(false, newUid("1")));
assertThat(getResult.exists(), equalTo(false));
// refresh and it should be there
engine.refresh(new Engine.Refresh(true));
// now its there...
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 1));
searchResult.release();
// also in non realtime
getResult = engine.get(new Engine.Get(false, newUid("1")));
assertThat(getResult.exists(), equalTo(true));
assertThat(getResult.docIdAndVersion(), notNullValue());
// now do an update
document = testDocument();
document.add(new TextField("value", "test1", Field.Store.YES));
document.add(
new Field(SourceFieldMapper.NAME, B_2.toBytes(), SourceFieldMapper.Defaults.FIELD_TYPE));
doc =
testParsedDocument(
"1", "1", "test", null, -1, -1, document, Lucene.STANDARD_ANALYZER, B_2, false);
engine.index(new Engine.Index(null, newUid("1"), doc));
// its not updated yet...
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test1")), 0));
searchResult.release();
// but, we can still get it (in realtime)
getResult = engine.get(new Engine.Get(true, newUid("1")));
assertThat(getResult.exists(), equalTo(true));
assertThat(getResult.source().source.toBytesArray(), equalTo(B_2.toBytesArray()));
assertThat(getResult.docIdAndVersion(), nullValue());
// refresh and it should be updated
engine.refresh(new Engine.Refresh(true));
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test1")), 1));
searchResult.release();
// now delete
engine.delete(new Engine.Delete("test", "1", newUid("1")));
// its not deleted yet
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test1")), 1));
searchResult.release();
// but, get should not see it (in realtime)
getResult = engine.get(new Engine.Get(true, newUid("1")));
assertThat(getResult.exists(), equalTo(false));
// refresh and it should be deleted
engine.refresh(new Engine.Refresh(true));
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test1")), 0));
searchResult.release();
// add it back
document = testDocumentWithTextField();
document.add(
new Field(SourceFieldMapper.NAME, B_1.toBytes(), SourceFieldMapper.Defaults.FIELD_TYPE));
doc =
testParsedDocument(
"1", "1", "test", null, -1, -1, document, Lucene.STANDARD_ANALYZER, B_1, false);
engine.create(new Engine.Create(null, newUid("1"), doc));
// its not there...
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(0));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test1")), 0));
searchResult.release();
// refresh and it should be there
engine.refresh(new Engine.Refresh(true));
// now its there...
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test1")), 0));
searchResult.release();
// now flush
engine.flush(new Engine.Flush());
// and, verify get (in real time)
getResult = engine.get(new Engine.Get(true, newUid("1")));
assertThat(getResult.exists(), equalTo(true));
assertThat(getResult.source(), nullValue());
assertThat(getResult.docIdAndVersion(), notNullValue());
// make sure we can still work with the engine
// now do an update
document = testDocument();
document.add(new TextField("value", "test1", Field.Store.YES));
doc =
testParsedDocument(
"1", "1", "test", null, -1, -1, document, Lucene.STANDARD_ANALYZER, B_1, false);
engine.index(new Engine.Index(null, newUid("1"), doc));
// its not updated yet...
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test1")), 0));
searchResult.release();
// refresh and it should be updated
engine.refresh(new Engine.Refresh(true));
searchResult = engine.searcher();
MatcherAssert.assertThat(
searchResult, EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(1));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test")), 0));
MatcherAssert.assertThat(
searchResult,
EngineSearcherTotalHitsMatcher.engineSearcherTotalHits(
new TermQuery(new Term("value", "test1")), 1));
searchResult.release();
engine.close();
}
@Test
public void testSegments() throws Exception {
List<Segment> segments = engine.segments();
assertThat(segments.isEmpty(), equalTo(true));
final boolean defaultCompound =
defaultSettings.getAsBoolean(RobinEngine.INDEX_COMPOUND_ON_FLUSH, true);
// create a doc and refresh
ParsedDocument doc =
testParsedDocument(
"1",
"1",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_1,
false);
engine.create(new Engine.Create(null, newUid("1"), doc));
ParsedDocument doc2 =
testParsedDocument(
"2",
"2",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_2,
false);
engine.create(new Engine.Create(null, newUid("2"), doc2));
engine.refresh(new Engine.Refresh(true));
segments = engine.segments();
assertThat(segments.size(), equalTo(1));
assertThat(segments.get(0).isCommitted(), equalTo(false));
assertThat(segments.get(0).isSearch(), equalTo(true));
assertThat(segments.get(0).getNumDocs(), equalTo(2));
assertThat(segments.get(0).getDeletedDocs(), equalTo(0));
assertThat(segments.get(0).isCompound(), equalTo(defaultCompound));
engine.flush(new Engine.Flush());
segments = engine.segments();
assertThat(segments.size(), equalTo(1));
assertThat(segments.get(0).isCommitted(), equalTo(true));
assertThat(segments.get(0).isSearch(), equalTo(true));
assertThat(segments.get(0).getNumDocs(), equalTo(2));
assertThat(segments.get(0).getDeletedDocs(), equalTo(0));
assertThat(segments.get(0).isCompound(), equalTo(defaultCompound));
engineSettingsService.refreshSettings(
ImmutableSettings.builder().put(RobinEngine.INDEX_COMPOUND_ON_FLUSH, false).build());
ParsedDocument doc3 =
testParsedDocument(
"3",
"3",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_3,
false);
engine.create(new Engine.Create(null, newUid("3"), doc3));
engine.refresh(new Engine.Refresh(true));
segments = engine.segments();
assertThat(segments.size(), equalTo(2));
assertThat(segments.get(0).getGeneration() < segments.get(1).getGeneration(), equalTo(true));
assertThat(segments.get(0).isCommitted(), equalTo(true));
assertThat(segments.get(0).isSearch(), equalTo(true));
assertThat(segments.get(0).getNumDocs(), equalTo(2));
assertThat(segments.get(0).getDeletedDocs(), equalTo(0));
assertThat(segments.get(0).isCompound(), equalTo(defaultCompound));
assertThat(segments.get(1).isCommitted(), equalTo(false));
assertThat(segments.get(1).isSearch(), equalTo(true));
assertThat(segments.get(1).getNumDocs(), equalTo(1));
assertThat(segments.get(1).getDeletedDocs(), equalTo(0));
assertThat(segments.get(1).isCompound(), equalTo(false));
engine.delete(new Engine.Delete("test", "1", newUid("1")));
engine.refresh(new Engine.Refresh(true));
segments = engine.segments();
assertThat(segments.size(), equalTo(2));
assertThat(segments.get(0).getGeneration() < segments.get(1).getGeneration(), equalTo(true));
assertThat(segments.get(0).isCommitted(), equalTo(true));
assertThat(segments.get(0).isSearch(), equalTo(true));
assertThat(segments.get(0).getNumDocs(), equalTo(1));
assertThat(segments.get(0).getDeletedDocs(), equalTo(1));
assertThat(segments.get(0).isCompound(), equalTo(defaultCompound));
assertThat(segments.get(1).isCommitted(), equalTo(false));
assertThat(segments.get(1).isSearch(), equalTo(true));
assertThat(segments.get(1).getNumDocs(), equalTo(1));
assertThat(segments.get(1).getDeletedDocs(), equalTo(0));
assertThat(segments.get(1).isCompound(), equalTo(false));
engineSettingsService.refreshSettings(
ImmutableSettings.builder().put(RobinEngine.INDEX_COMPOUND_ON_FLUSH, true).build());
ParsedDocument doc4 =
testParsedDocument(
"4",
"4",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_3,
false);
engine.create(new Engine.Create(null, newUid("4"), doc4));
engine.refresh(new Engine.Refresh(true));
segments = engine.segments();
assertThat(segments.size(), equalTo(3));
assertThat(segments.get(0).getGeneration() < segments.get(1).getGeneration(), equalTo(true));
assertThat(segments.get(0).isCommitted(), equalTo(true));
assertThat(segments.get(0).isSearch(), equalTo(true));
assertThat(segments.get(0).getNumDocs(), equalTo(1));
assertThat(segments.get(0).getDeletedDocs(), equalTo(1));
assertThat(segments.get(0).isCompound(), equalTo(defaultCompound));
assertThat(segments.get(1).isCommitted(), equalTo(false));
assertThat(segments.get(1).isSearch(), equalTo(true));
assertThat(segments.get(1).getNumDocs(), equalTo(1));
assertThat(segments.get(1).getDeletedDocs(), equalTo(0));
assertThat(segments.get(1).isCompound(), equalTo(false));
assertThat(segments.get(2).isCommitted(), equalTo(false));
assertThat(segments.get(2).isSearch(), equalTo(true));
assertThat(segments.get(2).getNumDocs(), equalTo(1));
assertThat(segments.get(2).getDeletedDocs(), equalTo(0));
assertThat(segments.get(2).isCompound(), equalTo(true));
}
@Test
public void testSegments() throws Exception {
List<Segment> segments = engine.segments();
assertThat(segments.isEmpty(), equalTo(true));
// create a doc and refresh
ParsedDocument doc =
testParsedDocument(
"1",
"1",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_1,
false);
engine.create(new Engine.Create(null, newUid("1"), doc));
ParsedDocument doc2 =
testParsedDocument(
"2",
"2",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_2,
false);
engine.create(new Engine.Create(null, newUid("2"), doc2));
engine.refresh(new Engine.Refresh(true));
segments = engine.segments();
assertThat(segments.size(), equalTo(1));
assertThat(segments.get(0).committed(), equalTo(false));
assertThat(segments.get(0).search(), equalTo(true));
assertThat(segments.get(0).numDocs(), equalTo(2));
assertThat(segments.get(0).deletedDocs(), equalTo(0));
engine.flush(new Engine.Flush());
segments = engine.segments();
assertThat(segments.size(), equalTo(1));
assertThat(segments.get(0).committed(), equalTo(true));
assertThat(segments.get(0).search(), equalTo(true));
assertThat(segments.get(0).numDocs(), equalTo(2));
assertThat(segments.get(0).deletedDocs(), equalTo(0));
ParsedDocument doc3 =
testParsedDocument(
"3",
"3",
"test",
null,
-1,
-1,
testDocumentWithTextField(),
Lucene.STANDARD_ANALYZER,
B_3,
false);
engine.create(new Engine.Create(null, newUid("3"), doc3));
engine.refresh(new Engine.Refresh(true));
segments = engine.segments();
assertThat(segments.size(), equalTo(2));
assertThat(segments.get(0).generation() < segments.get(1).generation(), equalTo(true));
assertThat(segments.get(0).committed(), equalTo(true));
assertThat(segments.get(0).search(), equalTo(true));
assertThat(segments.get(0).numDocs(), equalTo(2));
assertThat(segments.get(0).deletedDocs(), equalTo(0));
assertThat(segments.get(1).committed(), equalTo(false));
assertThat(segments.get(1).search(), equalTo(true));
assertThat(segments.get(1).numDocs(), equalTo(1));
assertThat(segments.get(1).deletedDocs(), equalTo(0));
engine.delete(new Engine.Delete("test", "1", newUid("1")));
engine.refresh(new Engine.Refresh(true));
segments = engine.segments();
assertThat(segments.size(), equalTo(2));
assertThat(segments.get(0).generation() < segments.get(1).generation(), equalTo(true));
assertThat(segments.get(0).committed(), equalTo(true));
assertThat(segments.get(0).search(), equalTo(true));
assertThat(segments.get(0).numDocs(), equalTo(1));
assertThat(segments.get(0).deletedDocs(), equalTo(1));
assertThat(segments.get(1).committed(), equalTo(false));
assertThat(segments.get(1).search(), equalTo(true));
assertThat(segments.get(1).numDocs(), equalTo(1));
assertThat(segments.get(1).deletedDocs(), equalTo(0));
}