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InternalEngineTests.java
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InternalEngineTests.java
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/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.index.engine;
import com.carrotsearch.randomizedtesting.generators.RandomNumbers;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.appender.AbstractAppender;
import org.apache.logging.log4j.core.filter.RegexFilter;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.KeywordField;
import org.apache.lucene.document.LongPoint;
import org.apache.lucene.document.NumericDocValuesField;
import org.apache.lucene.document.StoredField;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexCommit;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.IndexableField;
import org.apache.lucene.index.IndexableFieldType;
import org.apache.lucene.index.LeafReader;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.LiveIndexWriterConfig;
import org.apache.lucene.index.LogDocMergePolicy;
import org.apache.lucene.index.MergePolicy;
import org.apache.lucene.index.NoMergePolicy;
import org.apache.lucene.index.NumericDocValues;
import org.apache.lucene.index.PointValues;
import org.apache.lucene.index.SegmentInfos;
import org.apache.lucene.index.SoftDeletesRetentionMergePolicy;
import org.apache.lucene.index.Term;
import org.apache.lucene.index.Terms;
import org.apache.lucene.index.TermsEnum;
import org.apache.lucene.index.TieredMergePolicy;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.search.ReferenceManager;
import org.apache.lucene.search.Sort;
import org.apache.lucene.search.SortedSetSortField;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.search.TotalHitCountCollector;
import org.apache.lucene.store.AlreadyClosedException;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.Lock;
import org.apache.lucene.tests.index.ForceMergePolicy;
import org.apache.lucene.tests.mockfile.ExtrasFS;
import org.apache.lucene.tests.store.MockDirectoryWrapper;
import org.apache.lucene.util.Bits;
import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.FixedBitSet;
import org.opensearch.OpenSearchException;
import org.opensearch.Version;
import org.opensearch.action.index.IndexRequest;
import org.opensearch.action.support.TransportActions;
import org.opensearch.cluster.metadata.IndexMetadata;
import org.opensearch.cluster.routing.IndexShardRoutingTable;
import org.opensearch.cluster.routing.ShardRouting;
import org.opensearch.cluster.routing.ShardRoutingState;
import org.opensearch.cluster.routing.TestShardRouting;
import org.opensearch.common.CheckedBiConsumer;
import org.opensearch.common.CheckedRunnable;
import org.opensearch.common.Randomness;
import org.opensearch.common.SetOnce;
import org.opensearch.common.TriFunction;
import org.opensearch.common.UUIDs;
import org.opensearch.common.collect.Tuple;
import org.opensearch.common.concurrent.GatedCloseable;
import org.opensearch.common.logging.Loggers;
import org.opensearch.common.lucene.Lucene;
import org.opensearch.common.lucene.index.OpenSearchDirectoryReader;
import org.opensearch.common.lucene.index.SequentialStoredFieldsLeafReader;
import org.opensearch.common.lucene.uid.Versions;
import org.opensearch.common.lucene.uid.VersionsAndSeqNoResolver;
import org.opensearch.common.lucene.uid.VersionsAndSeqNoResolver.DocIdAndSeqNo;
import org.opensearch.common.settings.Settings;
import org.opensearch.common.unit.TimeValue;
import org.opensearch.common.util.BigArrays;
import org.opensearch.common.util.concurrent.AbstractRunnable;
import org.opensearch.common.util.concurrent.ConcurrentCollections;
import org.opensearch.common.util.concurrent.ReleasableLock;
import org.opensearch.common.util.io.IOUtils;
import org.opensearch.core.action.ActionListener;
import org.opensearch.core.common.Strings;
import org.opensearch.core.common.bytes.BytesArray;
import org.opensearch.core.common.bytes.BytesReference;
import org.opensearch.core.common.unit.ByteSizeValue;
import org.opensearch.core.index.shard.ShardId;
import org.opensearch.core.indices.breaker.NoneCircuitBreakerService;
import org.opensearch.core.xcontent.MediaTypeRegistry;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.VersionType;
import org.opensearch.index.codec.CodecService;
import org.opensearch.index.engine.Engine.IndexResult;
import org.opensearch.index.fieldvisitor.FieldsVisitor;
import org.opensearch.index.mapper.IdFieldMapper;
import org.opensearch.index.mapper.ParseContext;
import org.opensearch.index.mapper.ParseContext.Document;
import org.opensearch.index.mapper.ParsedDocument;
import org.opensearch.index.mapper.SeqNoFieldMapper;
import org.opensearch.index.mapper.SourceFieldMapper;
import org.opensearch.index.mapper.Uid;
import org.opensearch.index.mapper.VersionFieldMapper;
import org.opensearch.index.seqno.LocalCheckpointTracker;
import org.opensearch.index.seqno.ReplicationTracker;
import org.opensearch.index.seqno.RetentionLease;
import org.opensearch.index.seqno.RetentionLeases;
import org.opensearch.index.seqno.SeqNoStats;
import org.opensearch.index.seqno.SequenceNumbers;
import org.opensearch.index.shard.ShardUtils;
import org.opensearch.index.store.Store;
import org.opensearch.index.translog.DefaultTranslogDeletionPolicy;
import org.opensearch.index.translog.LocalTranslog;
import org.opensearch.index.translog.SnapshotMatchers;
import org.opensearch.index.translog.TestTranslog;
import org.opensearch.index.translog.Translog;
import org.opensearch.index.translog.TranslogConfig;
import org.opensearch.index.translog.TranslogDeletionPolicyFactory;
import org.opensearch.index.translog.TranslogException;
import org.opensearch.index.translog.listener.TranslogEventListener;
import org.opensearch.test.DummyShardLock;
import org.opensearch.test.IndexSettingsModule;
import org.opensearch.test.MockLogAppender;
import org.opensearch.test.VersionUtils;
import org.opensearch.threadpool.ThreadPool;
import org.hamcrest.MatcherAssert;
import org.hamcrest.Matchers;
import org.junit.Assert;
import java.io.Closeable;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Queue;
import java.util.Set;
import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.Phaser;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.IntSupplier;
import java.util.function.LongSupplier;
import java.util.function.Supplier;
import java.util.function.ToLongBiFunction;
import java.util.stream.Collectors;
import java.util.stream.LongStream;
import static java.util.Collections.shuffle;
import static org.opensearch.index.engine.Engine.Operation.Origin.LOCAL_RESET;
import static org.opensearch.index.engine.Engine.Operation.Origin.LOCAL_TRANSLOG_RECOVERY;
import static org.opensearch.index.engine.Engine.Operation.Origin.PEER_RECOVERY;
import static org.opensearch.index.engine.Engine.Operation.Origin.PRIMARY;
import static org.opensearch.index.engine.Engine.Operation.Origin.REPLICA;
import static org.opensearch.index.seqno.SequenceNumbers.NO_OPS_PERFORMED;
import static org.opensearch.index.seqno.SequenceNumbers.UNASSIGNED_PRIMARY_TERM;
import static org.opensearch.index.seqno.SequenceNumbers.UNASSIGNED_SEQ_NO;
import static org.opensearch.index.translog.TranslogDeletionPolicies.createTranslogDeletionPolicy;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.CoreMatchers.sameInstance;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.containsInAnyOrder;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.empty;
import static org.hamcrest.Matchers.emptyArray;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.everyItem;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.greaterThanOrEqualTo;
import static org.hamcrest.Matchers.hasItem;
import static org.hamcrest.Matchers.hasKey;
import static org.hamcrest.Matchers.hasSize;
import static org.hamcrest.Matchers.in;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.lessThanOrEqualTo;
import static org.hamcrest.Matchers.not;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.nullValue;
import static org.mockito.Mockito.atLeastOnce;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
public class InternalEngineTests extends EngineTestCase {
public void testVersionMapAfterAutoIDDocument() throws IOException {
engine.refresh("warm_up");
ParsedDocument doc = testParsedDocument(
"1",
null,
testDocumentWithTextField("test"),
new BytesArray("{}".getBytes(Charset.defaultCharset())),
null
);
Engine.Index operation = randomBoolean()
? appendOnlyPrimary(doc, false, 1)
: appendOnlyReplica(doc, false, 1, randomIntBetween(0, 5));
engine.index(operation);
assertFalse(engine.isSafeAccessRequired());
doc = testParsedDocument(
"1",
null,
testDocumentWithTextField("updated"),
new BytesArray("{}".getBytes(Charset.defaultCharset())),
null
);
Engine.Index update = indexForDoc(doc);
engine.index(update);
assertTrue(engine.isSafeAccessRequired());
assertThat(engine.getVersionMap().values(), hasSize(1));
try (Engine.Searcher searcher = engine.acquireSearcher("test")) {
assertEquals(0, searcher.getIndexReader().numDocs());
}
try (Engine.Searcher searcher = engine.acquireSearcher("test", Engine.SearcherScope.INTERNAL)) {
assertEquals(1, searcher.getIndexReader().numDocs());
TopDocs search = searcher.search(new MatchAllDocsQuery(), 1);
org.apache.lucene.document.Document luceneDoc = searcher.doc(search.scoreDocs[0].doc);
assertEquals("test", luceneDoc.get("value"));
}
// now lets make this document visible
engine.refresh("test");
if (randomBoolean()) { // random empty refresh
engine.refresh("test");
}
assertTrue("safe access should be required we carried it over", engine.isSafeAccessRequired());
try (Engine.Searcher searcher = engine.acquireSearcher("test")) {
assertEquals(1, searcher.getIndexReader().numDocs());
TopDocs search = searcher.search(new MatchAllDocsQuery(), 1);
org.apache.lucene.document.Document luceneDoc = searcher.doc(search.scoreDocs[0].doc);
assertEquals("updated", luceneDoc.get("value"));
}
doc = testParsedDocument(
"2",
null,
testDocumentWithTextField("test"),
new BytesArray("{}".getBytes(Charset.defaultCharset())),
null
);
operation = randomBoolean() ? appendOnlyPrimary(doc, false, 1) : appendOnlyReplica(doc, false, 1, generateNewSeqNo(engine));
engine.index(operation);
assertTrue("safe access should be required", engine.isSafeAccessRequired());
assertThat(engine.getVersionMap().values(), hasSize(1)); // now we add this to the map
engine.refresh("test");
if (randomBoolean()) { // randomly refresh here again
engine.refresh("test");
}
try (Engine.Searcher searcher = engine.acquireSearcher("test")) {
assertEquals(2, searcher.getIndexReader().numDocs());
}
if (operation.origin() == PRIMARY) {
assertFalse("safe access should NOT be required last indexing round was only append only", engine.isSafeAccessRequired());
}
engine.delete(new Engine.Delete(operation.id(), operation.uid(), primaryTerm.get()));
assertTrue("safe access should be required", engine.isSafeAccessRequired());
engine.refresh("test");
assertTrue("safe access should be required", engine.isSafeAccessRequired());
try (Engine.Searcher searcher = engine.acquireSearcher("test")) {
assertEquals(1, searcher.getIndexReader().numDocs());
}
}
public void testVerboseSegments() throws Exception {
try (Store store = createStore(); Engine engine = createEngine(defaultSettings, store, createTempDir(), NoMergePolicy.INSTANCE)) {
List<Segment> segments = engine.segments(true);
assertThat(segments.isEmpty(), equalTo(true));
ParsedDocument doc = testParsedDocument("1", null, testDocumentWithTextField(), B_1, null);
engine.index(indexForDoc(doc));
engine.refresh("test");
segments = engine.segments(true);
assertThat(segments.size(), equalTo(1));
ParsedDocument doc2 = testParsedDocument("2", null, testDocumentWithTextField(), B_2, null);
engine.index(indexForDoc(doc2));
engine.refresh("test");
ParsedDocument doc3 = testParsedDocument("3", null, testDocumentWithTextField(), B_3, null);
engine.index(indexForDoc(doc3));
engine.refresh("test");
segments = engine.segments(true);
assertThat(segments.size(), equalTo(3));
}
}
public void testSegmentsWithUseCompoundFileFlag_true() throws IOException {
try (Store store = createStore(); Engine engine = createEngine(defaultSettings, store, createTempDir(), new TieredMergePolicy())) {
ParsedDocument doc = testParsedDocument("1", null, testDocument(), B_1, null);
Engine.Index index = indexForDoc(doc);
engine.index(index);
engine.flush();
final List<Segment> segments = engine.segments(false);
assertThat(segments, hasSize(1));
assertTrue(segments.get(0).compound);
boolean cfeCompoundFileFound = false;
boolean cfsCompoundFileFound = false;
for (final String fileName : store.readLastCommittedSegmentsInfo().files(true)) {
if (fileName.endsWith(".cfe")) {
cfeCompoundFileFound = true;
}
if (fileName.endsWith(".cfs")) {
cfsCompoundFileFound = true;
}
}
Assert.assertTrue(cfeCompoundFileFound);
Assert.assertTrue(cfsCompoundFileFound);
}
}
public void testSegmentsWithUseCompoundFileFlag_false() throws IOException {
final IndexSettings indexSettings = IndexSettingsModule.newIndexSettings(
"test",
Settings.builder().put(defaultSettings.getSettings()).put(EngineConfig.INDEX_USE_COMPOUND_FILE.getKey(), false).build()
);
try (Store store = createStore(); Engine engine = createEngine(indexSettings, store, createTempDir(), new TieredMergePolicy())) {
ParsedDocument doc = testParsedDocument("1", null, testDocument(), B_1, null);
Engine.Index index = indexForDoc(doc);
engine.index(index);
engine.flush();
final List<Segment> segments = engine.segments(false);
assertThat(segments, hasSize(1));
assertFalse(segments.get(0).compound);
boolean cfeCompoundFileFound = false;
boolean cfsCompoundFileFound = false;
for (final String fileName : store.readLastCommittedSegmentsInfo().files(true)) {
if (fileName.endsWith(".cfe")) {
cfeCompoundFileFound = true;
}
if (fileName.endsWith(".cfs")) {
cfsCompoundFileFound = true;
}
}
Assert.assertFalse(cfeCompoundFileFound);
Assert.assertFalse(cfsCompoundFileFound);
}
}
public void testSegmentsWithMergeFlag() throws Exception {
try (Store store = createStore(); Engine engine = createEngine(defaultSettings, store, createTempDir(), new TieredMergePolicy())) {
ParsedDocument doc = testParsedDocument("1", null, testDocument(), B_1, null);
Engine.Index index = indexForDoc(doc);
engine.index(index);
engine.flush();
assertThat(engine.segments(false).size(), equalTo(1));
index = indexForDoc(testParsedDocument("2", null, testDocument(), B_1, null));
engine.index(index);
engine.flush();
List<Segment> segments = engine.segments(false);
assertThat(segments.size(), equalTo(2));
for (Segment segment : segments) {
assertThat(segment.getMergeId(), nullValue());
}
index = indexForDoc(testParsedDocument("3", null, testDocument(), B_1, null));
engine.index(index);
engine.flush();
segments = engine.segments(false);
assertThat(segments.size(), equalTo(3));
for (Segment segment : segments) {
assertThat(segment.getMergeId(), nullValue());
}
index = indexForDoc(doc);
engine.index(index);
engine.flush();
final long gen1 = store.readLastCommittedSegmentsInfo().getGeneration();
// now, optimize and wait for merges, see that we have no merge flag
engine.forceMerge(true, 1, false, false, false, UUIDs.randomBase64UUID());
for (Segment segment : engine.segments(false)) {
assertThat(segment.getMergeId(), nullValue());
}
// we could have multiple underlying merges, so the generation may increase more than once
assertTrue(store.readLastCommittedSegmentsInfo().getGeneration() > gen1);
final boolean flush = randomBoolean();
final long gen2 = store.readLastCommittedSegmentsInfo().getGeneration();
engine.forceMerge(flush, 1, false, false, false, UUIDs.randomBase64UUID());
for (Segment segment : engine.segments(false)) {
assertThat(segment.getMergeId(), nullValue());
}
if (flush) {
// we should have had just 1 merge, so last generation should be exact
assertEquals(gen2, store.readLastCommittedSegmentsInfo().getLastGeneration());
}
}
}
public void testSegmentsWithIndexSort() throws Exception {
Sort indexSort = new Sort(new SortedSetSortField("field", false));
try (
Store store = createStore();
Engine engine = createEngine(defaultSettings, store, createTempDir(), NoMergePolicy.INSTANCE, null, null, null, indexSort, null)
) {
List<Segment> segments = engine.segments(true);
assertThat(segments.isEmpty(), equalTo(true));
ParsedDocument doc = testParsedDocument("1", null, testDocumentWithTextField(), B_1, null);
engine.index(indexForDoc(doc));
engine.refresh("test");
segments = engine.segments(false);
assertThat(segments.size(), equalTo(1));
assertThat(segments.get(0).getSegmentSort(), equalTo(indexSort));
ParsedDocument doc2 = testParsedDocument("2", null, testDocumentWithTextField(), B_2, null);
engine.index(indexForDoc(doc2));
engine.refresh("test");
ParsedDocument doc3 = testParsedDocument("3", null, testDocumentWithTextField(), B_3, null);
engine.index(indexForDoc(doc3));
engine.refresh("test");
segments = engine.segments(true);
assertThat(segments.size(), equalTo(3));
assertThat(segments.get(0).getSegmentSort(), equalTo(indexSort));
assertThat(segments.get(1).getSegmentSort(), equalTo(indexSort));
assertThat(segments.get(2).getSegmentSort(), equalTo(indexSort));
}
}
public void testSegmentsStatsIncludingFileSizes() throws Exception {
try (Store store = createStore(); Engine engine = createEngine(defaultSettings, store, createTempDir(), NoMergePolicy.INSTANCE)) {
assertThat(engine.segmentsStats(true, false).getFileSizes().size(), equalTo(0));
ParsedDocument doc = testParsedDocument("1", null, testDocumentWithTextField(), B_1, null);
engine.index(indexForDoc(doc));
engine.refresh("test");
SegmentsStats stats = engine.segmentsStats(true, false);
assertThat(stats.getFileSizes().size(), greaterThan(0));
assertThat(() -> stats.getFileSizes().values().iterator(), everyItem(greaterThan(0L)));
Map.Entry<String, Long> firstEntry = stats.getFileSizes().entrySet().iterator().next();
ParsedDocument doc2 = testParsedDocument("2", null, testDocumentWithTextField(), B_2, null);
engine.index(indexForDoc(doc2));
engine.refresh("test");
assertThat(engine.segmentsStats(true, false).getFileSizes().get(firstEntry.getKey()), greaterThan(firstEntry.getValue()));
}
}
public void testSegments() throws Exception {
final AtomicLong globalCheckpoint = new AtomicLong(SequenceNumbers.NO_OPS_PERFORMED);
try (
Store store = createStore();
InternalEngine engine = createEngine(
config(defaultSettings, store, createTempDir(), NoMergePolicy.INSTANCE, null, null, globalCheckpoint::get)
)
) {
assertThat(engine.segments(false), empty());
int numDocsFirstSegment = randomIntBetween(5, 50);
Set<String> liveDocsFirstSegment = new HashSet<>();
for (int i = 0; i < numDocsFirstSegment; i++) {
String id = Integer.toString(i);
ParsedDocument doc = testParsedDocument(id, null, testDocument(), B_1, null);
engine.index(indexForDoc(doc));
liveDocsFirstSegment.add(id);
}
engine.refresh("test");
List<Segment> segments = engine.segments(randomBoolean());
assertThat(segments, hasSize(1));
assertThat(segments.get(0).getNumDocs(), equalTo(liveDocsFirstSegment.size()));
assertThat(segments.get(0).getDeletedDocs(), equalTo(0));
assertFalse(segments.get(0).committed);
int deletes = 0;
int updates = 0;
int appends = 0;
int iterations = scaledRandomIntBetween(1, 50);
for (int i = 0; i < iterations && liveDocsFirstSegment.isEmpty() == false; i++) {
String idToUpdate = randomFrom(liveDocsFirstSegment);
liveDocsFirstSegment.remove(idToUpdate);
ParsedDocument doc = testParsedDocument(idToUpdate, null, testDocument(), B_1, null);
if (randomBoolean()) {
engine.delete(new Engine.Delete(doc.id(), newUid(doc), primaryTerm.get()));
deletes++;
} else {
engine.index(indexForDoc(doc));
updates++;
}
if (randomBoolean()) {
engine.index(indexForDoc(testParsedDocument(UUIDs.randomBase64UUID(), null, testDocument(), B_1, null)));
appends++;
}
}
boolean committed = randomBoolean();
if (committed) {
engine.flush();
}
engine.refresh("test");
segments = engine.segments(randomBoolean());
assertThat(segments, hasSize(2));
assertThat(segments.get(0).getNumDocs(), equalTo(liveDocsFirstSegment.size()));
assertThat(segments.get(0).getDeletedDocs(), equalTo(updates + deletes));
assertThat(segments.get(0).committed, equalTo(committed));
assertThat(segments.get(1).getNumDocs(), equalTo(updates + appends));
assertThat(segments.get(1).getDeletedDocs(), equalTo(deletes)); // delete tombstones
assertThat(segments.get(1).committed, equalTo(committed));
}
}
public void testMergeSegmentsOnCommitIsDisabled() throws Exception {
final AtomicLong globalCheckpoint = new AtomicLong(SequenceNumbers.NO_OPS_PERFORMED);
final Settings.Builder settings = Settings.builder()
.put(defaultSettings.getSettings())
.put(IndexSettings.INDEX_MERGE_ON_FLUSH_ENABLED.getKey(), false);
final IndexMetadata indexMetadata = IndexMetadata.builder(defaultSettings.getIndexMetadata()).settings(settings).build();
final IndexSettings indexSettings = IndexSettingsModule.newIndexSettings(indexMetadata);
try (
Store store = createStore();
InternalEngine engine = createEngine(
config(indexSettings, store, createTempDir(), NoMergePolicy.INSTANCE, null, null, globalCheckpoint::get)
)
) {
assertThat(engine.segments(false), empty());
int numDocsFirstSegment = randomIntBetween(5, 50);
Set<String> liveDocsFirstSegment = new HashSet<>();
for (int i = 0; i < numDocsFirstSegment; i++) {
String id = Integer.toString(i);
ParsedDocument doc = testParsedDocument(id, null, testDocument(), B_1, null);
engine.index(indexForDoc(doc));
liveDocsFirstSegment.add(id);
}
engine.refresh("test");
List<Segment> segments = engine.segments(randomBoolean());
assertThat(segments, hasSize(1));
assertThat(segments.get(0).getNumDocs(), equalTo(liveDocsFirstSegment.size()));
assertThat(segments.get(0).getDeletedDocs(), equalTo(0));
assertFalse(segments.get(0).committed);
int deletes = 0;
int updates = 0;
int appends = 0;
int iterations = scaledRandomIntBetween(1, 50);
for (int i = 0; i < iterations && liveDocsFirstSegment.isEmpty() == false; i++) {
String idToUpdate = randomFrom(liveDocsFirstSegment);
liveDocsFirstSegment.remove(idToUpdate);
ParsedDocument doc = testParsedDocument(idToUpdate, null, testDocument(), B_1, null);
if (randomBoolean()) {
engine.delete(new Engine.Delete(doc.id(), newUid(doc), primaryTerm.get()));
deletes++;
} else {
engine.index(indexForDoc(doc));
updates++;
}
if (randomBoolean()) {
engine.index(indexForDoc(testParsedDocument(UUIDs.randomBase64UUID(), null, testDocument(), B_1, null)));
appends++;
}
}
boolean committed = randomBoolean();
if (committed) {
engine.flush();
}
engine.refresh("test");
segments = engine.segments(randomBoolean());
assertThat(segments, hasSize(2));
assertThat(segments, hasSize(2));
assertThat(segments.get(0).getNumDocs(), equalTo(liveDocsFirstSegment.size()));
assertThat(segments.get(0).getDeletedDocs(), equalTo(updates + deletes));
assertThat(segments.get(0).committed, equalTo(committed));
assertThat(segments.get(1).getNumDocs(), equalTo(updates + appends));
assertThat(segments.get(1).getDeletedDocs(), equalTo(deletes)); // delete tombstones
assertThat(segments.get(1).committed, equalTo(committed));
}
}
public void testMergeSegmentsOnCommit() throws Exception {
final AtomicLong globalCheckpoint = new AtomicLong(SequenceNumbers.NO_OPS_PERFORMED);
final Settings.Builder settings = Settings.builder()
.put(defaultSettings.getSettings())
.put(IndexSettings.INDEX_MERGE_ON_FLUSH_MAX_FULL_FLUSH_MERGE_WAIT_TIME.getKey(), TimeValue.timeValueMillis(5000))
.put(IndexSettings.INDEX_MERGE_ON_FLUSH_POLICY.getKey(), "merge-on-flush");
final IndexMetadata indexMetadata = IndexMetadata.builder(defaultSettings.getIndexMetadata()).settings(settings).build();
final IndexSettings indexSettings = IndexSettingsModule.newIndexSettings(indexMetadata);
try (
Store store = createStore();
InternalEngine engine = createEngine(
config(indexSettings, store, createTempDir(), NoMergePolicy.INSTANCE, null, null, globalCheckpoint::get)
)
) {
assertThat(engine.segments(false), empty());
int numDocsFirstSegment = randomIntBetween(5, 50);
Set<String> liveDocsFirstSegment = new HashSet<>();
for (int i = 0; i < numDocsFirstSegment; i++) {
String id = Integer.toString(i);
ParsedDocument doc = testParsedDocument(id, null, testDocument(), B_1, null);
engine.index(indexForDoc(doc));
liveDocsFirstSegment.add(id);
}
engine.refresh("test");
List<Segment> segments = engine.segments(randomBoolean());
assertThat(segments, hasSize(1));
assertThat(segments.get(0).getNumDocs(), equalTo(liveDocsFirstSegment.size()));
assertThat(segments.get(0).getDeletedDocs(), equalTo(0));
assertFalse(segments.get(0).committed);
int deletes = 0;
int updates = 0;
int appends = 0;
int iterations = scaledRandomIntBetween(1, 50);
for (int i = 0; i < iterations && liveDocsFirstSegment.isEmpty() == false; i++) {
String idToUpdate = randomFrom(liveDocsFirstSegment);
liveDocsFirstSegment.remove(idToUpdate);
ParsedDocument doc = testParsedDocument(idToUpdate, null, testDocument(), B_1, null);
if (randomBoolean()) {
engine.delete(new Engine.Delete(doc.id(), newUid(doc), primaryTerm.get()));
deletes++;
} else {
engine.index(indexForDoc(doc));
updates++;
}
if (randomBoolean()) {
engine.index(indexForDoc(testParsedDocument(UUIDs.randomBase64UUID(), null, testDocument(), B_1, null)));
appends++;
}
}
boolean committed = randomBoolean();
if (committed) {
engine.flush();
}
engine.refresh("test");
segments = engine.segments(randomBoolean());
// All segments have to be merged into one
assertThat(segments, hasSize(1));
assertThat(segments.get(0).getNumDocs(), equalTo(numDocsFirstSegment + appends - deletes));
assertThat(segments.get(0).getDeletedDocs(), equalTo(0));
assertThat(segments.get(0).committed, equalTo(committed));
}
}
public void testMergeSegmentsOnCommitDefault() throws Exception {
final AtomicLong globalCheckpoint = new AtomicLong(SequenceNumbers.NO_OPS_PERFORMED);
final Settings.Builder settings = Settings.builder().put(defaultSettings.getSettings());
final IndexMetadata indexMetadata = IndexMetadata.builder(defaultSettings.getIndexMetadata()).settings(settings).build();
final IndexSettings indexSettings = IndexSettingsModule.newIndexSettings(indexMetadata);
final TieredMergePolicy mergePolicy = new TieredMergePolicy();
mergePolicy.setSegmentsPerTier(2);
try (
Store store = createStore();
InternalEngine engine = createEngine(
config(indexSettings, store, createTempDir(), mergePolicy, null, null, globalCheckpoint::get)
)
) {
List<Segment> segments = engine.segments(true);
assertThat(segments.isEmpty(), equalTo(true));
ParsedDocument doc = testParsedDocument("1", null, testDocumentWithTextField(), B_1, null);
engine.index(indexForDoc(doc));
engine.refresh("test");
segments = engine.segments(true);
assertThat(segments.size(), equalTo(1));
ParsedDocument doc2 = testParsedDocument("2", null, testDocumentWithTextField(), B_2, null);
engine.index(indexForDoc(doc2));
engine.refresh("test");
ParsedDocument doc3 = testParsedDocument("3", null, testDocumentWithTextField(), B_3, null);
engine.index(indexForDoc(doc3));
engine.refresh("test");
segments = engine.segments(true);
assertThat(segments.size(), equalTo(2));
}
}
// this test writes documents to the engine while concurrently flushing/commit
public void testConcurrentMergeSegmentsOnCommit() throws Exception {
final AtomicLong globalCheckpoint = new AtomicLong(SequenceNumbers.NO_OPS_PERFORMED);
final Settings.Builder settings = Settings.builder()
.put(defaultSettings.getSettings())
.put(IndexSettings.INDEX_MERGE_ON_FLUSH_MAX_FULL_FLUSH_MERGE_WAIT_TIME.getKey(), TimeValue.timeValueMillis(5000))
.put(IndexSettings.INDEX_MERGE_ON_FLUSH_POLICY.getKey(), "merge-on-flush");
final IndexMetadata indexMetadata = IndexMetadata.builder(defaultSettings.getIndexMetadata()).settings(settings).build();
final IndexSettings indexSettings = IndexSettingsModule.newIndexSettings(indexMetadata);
try (
Store store = createStore();
InternalEngine engine = createEngine(
config(indexSettings, store, createTempDir(), NoMergePolicy.INSTANCE, null, null, globalCheckpoint::get)
)
) {
final int numIndexingThreads = scaledRandomIntBetween(3, 8);
final int numDocsPerThread = randomIntBetween(500, 1000);
final CyclicBarrier barrier = new CyclicBarrier(numIndexingThreads + 1);
final List<Thread> indexingThreads = new ArrayList<>();
final CountDownLatch doneLatch = new CountDownLatch(numIndexingThreads);
// create N indexing threads to index documents simultaneously
for (int threadNum = 0; threadNum < numIndexingThreads; threadNum++) {
final int threadIdx = threadNum;
Thread indexingThread = new Thread(() -> {
try {
barrier.await(); // wait for all threads to start at the same time
// index random number of docs
for (int i = 0; i < numDocsPerThread; i++) {
final String id = "thread" + threadIdx + "#" + i;
ParsedDocument doc = testParsedDocument(id, null, testDocument(), B_1, null);
engine.index(indexForDoc(doc));
}
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
doneLatch.countDown();
}
});
indexingThreads.add(indexingThread);
}
// start the indexing threads
for (Thread thread : indexingThreads) {
thread.start();
}
barrier.await(); // wait for indexing threads to all be ready to start
assertThat(doneLatch.await(10, TimeUnit.SECONDS), is(true));
boolean committed = randomBoolean();
if (committed) {
engine.flush();
}
engine.refresh("test");
List<Segment> segments = engine.segments(randomBoolean());
// All segments have to be merged into one
assertThat(segments, hasSize(1));
assertThat(segments.get(0).getNumDocs(), equalTo(numIndexingThreads * numDocsPerThread));
assertThat(segments.get(0).committed, equalTo(committed));
}
}
public void testCommitStats() throws IOException {
final AtomicLong maxSeqNo = new AtomicLong(SequenceNumbers.NO_OPS_PERFORMED);
final AtomicLong localCheckpoint = new AtomicLong(SequenceNumbers.NO_OPS_PERFORMED);
final AtomicLong globalCheckpoint = new AtomicLong(UNASSIGNED_SEQ_NO);
try (
Store store = createStore();
InternalEngine engine = createEngine(store, createTempDir(), (maxSeq, localCP) -> new LocalCheckpointTracker(maxSeq, localCP) {
@Override
public long getMaxSeqNo() {
return maxSeqNo.get();
}
@Override
public long getProcessedCheckpoint() {
return localCheckpoint.get();
}
})
) {
CommitStats stats1 = engine.commitStats();
assertThat(stats1.getGeneration(), greaterThan(0L));
assertThat(stats1.getId(), notNullValue());
assertThat(stats1.getUserData(), hasKey(SequenceNumbers.LOCAL_CHECKPOINT_KEY));
assertThat(
Long.parseLong(stats1.getUserData().get(SequenceNumbers.LOCAL_CHECKPOINT_KEY)),
equalTo(SequenceNumbers.NO_OPS_PERFORMED)
);
assertThat(stats1.getUserData(), hasKey(SequenceNumbers.MAX_SEQ_NO));
assertThat(Long.parseLong(stats1.getUserData().get(SequenceNumbers.MAX_SEQ_NO)), equalTo(SequenceNumbers.NO_OPS_PERFORMED));
maxSeqNo.set(rarely() ? SequenceNumbers.NO_OPS_PERFORMED : randomIntBetween(0, 1024));
localCheckpoint.set(
rarely() || maxSeqNo.get() == SequenceNumbers.NO_OPS_PERFORMED
? SequenceNumbers.NO_OPS_PERFORMED
: randomIntBetween(0, 1024)
);
globalCheckpoint.set(
rarely() || localCheckpoint.get() == SequenceNumbers.NO_OPS_PERFORMED
? UNASSIGNED_SEQ_NO
: randomIntBetween(0, (int) localCheckpoint.get())
);
engine.flush(true, true);
CommitStats stats2 = engine.commitStats();
assertThat(stats2.getGeneration(), greaterThan(stats1.getGeneration()));
assertThat(stats2.getId(), notNullValue());
assertThat(stats2.getId(), not(equalTo(stats1.getId())));
assertThat(stats2.getUserData(), hasKey(Translog.TRANSLOG_UUID_KEY));
assertThat(stats2.getUserData().get(Translog.TRANSLOG_UUID_KEY), equalTo(stats1.getUserData().get(Translog.TRANSLOG_UUID_KEY)));
assertThat(Long.parseLong(stats2.getUserData().get(SequenceNumbers.LOCAL_CHECKPOINT_KEY)), equalTo(localCheckpoint.get()));
assertThat(stats2.getUserData(), hasKey(SequenceNumbers.MAX_SEQ_NO));
assertThat(Long.parseLong(stats2.getUserData().get(SequenceNumbers.MAX_SEQ_NO)), equalTo(maxSeqNo.get()));
}
}
public void testFlushIsDisabledDuringTranslogRecovery() throws IOException {
engine.translogManager().ensureCanFlush(); // recovered already
ParsedDocument doc = testParsedDocument("1", null, testDocumentWithTextField(), SOURCE, null);
engine.index(indexForDoc(doc));
engine.close();
engine = new InternalEngine(engine.config());
expectThrows(IllegalStateException.class, engine.translogManager()::ensureCanFlush);
expectThrows(IllegalStateException.class, () -> engine.flush(true, true));
if (randomBoolean()) {
engine.translogManager().recoverFromTranslog(translogHandler, engine.getProcessedLocalCheckpoint(), Long.MAX_VALUE);
} else {
engine.translogManager().skipTranslogRecovery();
}
engine.translogManager().ensureCanFlush(); // ready
doc = testParsedDocument("2", null, testDocumentWithTextField(), SOURCE, null);
engine.index(indexForDoc(doc));
engine.flush();
}
public void testTranslogMultipleOperationsSameDocument() throws IOException {
final int ops = randomIntBetween(1, 32);
Engine initialEngine;
final List<Engine.Operation> operations = new ArrayList<>();
try {
initialEngine = engine;
for (int i = 0; i < ops; i++) {
final ParsedDocument doc = testParsedDocument("1", null, testDocumentWithTextField(), SOURCE, null);
if (randomBoolean()) {
final Engine.Index operation = new Engine.Index(
newUid(doc),
doc,
UNASSIGNED_SEQ_NO,
0,
i,
VersionType.EXTERNAL,
Engine.Operation.Origin.PRIMARY,
System.nanoTime(),
IndexRequest.UNSET_AUTO_GENERATED_TIMESTAMP,
false,
UNASSIGNED_SEQ_NO,
0
);
operations.add(operation);
initialEngine.index(operation);
} else {
final Engine.Delete operation = new Engine.Delete(
"1",
newUid(doc),
UNASSIGNED_SEQ_NO,
0,
i,
VersionType.EXTERNAL,
Engine.Operation.Origin.PRIMARY,
System.nanoTime(),
UNASSIGNED_SEQ_NO,
0
);
operations.add(operation);
initialEngine.delete(operation);
}
}
} finally {
IOUtils.close(engine);
}
try (Engine recoveringEngine = new InternalEngine(engine.config())) {
TranslogHandler translogHandler = createTranslogHandler(engine.config().getIndexSettings(), recoveringEngine);
recoveringEngine.translogManager()
.recoverFromTranslog(translogHandler, recoveringEngine.getProcessedLocalCheckpoint(), Long.MAX_VALUE);
recoveringEngine.refresh("test");
try (Engine.Searcher searcher = recoveringEngine.acquireSearcher("test")) {
final TotalHitCountCollector collector = new TotalHitCountCollector();
searcher.search(new MatchAllDocsQuery(), collector);
assertThat(collector.getTotalHits(), equalTo(operations.get(operations.size() - 1) instanceof Engine.Delete ? 0 : 1));
}
}
}
public void testTranslogRecoveryDoesNotReplayIntoTranslog() throws IOException {
final int docs = randomIntBetween(1, 32);
Engine initialEngine = null;
try {
initialEngine = engine;
for (int i = 0; i < docs; i++) {
final String id = Integer.toString(i);
final ParsedDocument doc = testParsedDocument(id, null, testDocumentWithTextField(), SOURCE, null);
initialEngine.index(indexForDoc(doc));
}
} finally {
IOUtils.close(initialEngine);
}
Engine recoveringEngine = null;
try {
final AtomicBoolean committed = new AtomicBoolean();
recoveringEngine = new InternalEngine(initialEngine.config()) {
@Override
protected void commitIndexWriter(IndexWriter writer, String translogUUID) throws IOException {
committed.set(true);
super.commitIndexWriter(writer, translogUUID);
}
};
assertThat(recoveringEngine.translogManager().getTranslogStats().getUncommittedOperations(), equalTo(docs));
TranslogHandler translogHandler = createTranslogHandler(initialEngine.config().getIndexSettings(), recoveringEngine);
recoveringEngine.translogManager()
.recoverFromTranslog(translogHandler, recoveringEngine.getProcessedLocalCheckpoint(), Long.MAX_VALUE);
assertTrue(committed.get());
} finally {
IOUtils.close(recoveringEngine);
}
}
public void testTranslogRecoveryWithMultipleGenerations() throws IOException {
final int docs = randomIntBetween(1, 4096);
final List<Long> seqNos = LongStream.range(0, docs).boxed().collect(Collectors.toList());
Randomness.shuffle(seqNos);
Engine initialEngine = null;
Engine recoveringEngine = null;
Store store = createStore();
final AtomicInteger counter = new AtomicInteger();
try {
initialEngine = createEngine(
store,
createTempDir(),
LocalCheckpointTracker::new,
(engine, operation) -> seqNos.get(counter.getAndIncrement())
);
for (int i = 0; i < docs; i++) {
final String id = Integer.toString(i);
final ParsedDocument doc = testParsedDocument(id, null, testDocumentWithTextField(), SOURCE, null);
initialEngine.index(indexForDoc(doc));
if (rarely()) {
getTranslog(initialEngine).rollGeneration();
} else if (rarely()) {
initialEngine.flush();
}
}
initialEngine.close();
recoveringEngine = new InternalEngine(initialEngine.config());