--- /dev/null
+package org.apache.lucene.index;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.
+ */
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+
+import org.apache.lucene.analysis.MockAnalyzer;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.Query;
+import org.apache.lucene.search.ScoreDoc;
+import org.apache.lucene.search.TermQuery;
+import org.apache.lucene.search.TopDocs;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.util.LuceneTestCase;
+import org.apache.lucene.util._TestUtil;
+
+public class TestStressNRT extends LuceneTestCase {
+ volatile IndexReader reader;
+
+ final ConcurrentHashMap<Integer,Long> model = new ConcurrentHashMap<Integer,Long>();
+ Map<Integer,Long> committedModel = new HashMap<Integer,Long>();
+ long snapshotCount;
+ long committedModelClock;
+ volatile int lastId;
+ final String field = "val_l";
+ Object[] syncArr;
+
+ private void initModel(int ndocs) {
+ snapshotCount = 0;
+ committedModelClock = 0;
+ lastId = 0;
+
+ syncArr = new Object[ndocs];
+
+ for (int i=0; i<ndocs; i++) {
+ model.put(i, -1L);
+ syncArr[i] = new Object();
+ }
+ committedModel.putAll(model);
+ }
+
+ public void test() throws Exception {
+ // update variables
+ final int commitPercent = random.nextInt(20);
+ final int softCommitPercent = random.nextInt(100); // what percent of the commits are soft
+ final int deletePercent = random.nextInt(50);
+ final int deleteByQueryPercent = random.nextInt(25);
+ final int ndocs = atLeast(50);
+ final int nWriteThreads = _TestUtil.nextInt(random, 1, TEST_NIGHTLY ? 10 : 5);
+ final int maxConcurrentCommits = _TestUtil.nextInt(random, 1, TEST_NIGHTLY ? 10 : 5); // number of committers at a time... needed if we want to avoid commit errors due to exceeding the max
+
+ final boolean tombstones = random.nextBoolean();
+
+
+ // query variables
+ final AtomicLong operations = new AtomicLong(atLeast(50000)); // number of query operations to perform in total
+
+ final int nReadThreads = _TestUtil.nextInt(random, 1, TEST_NIGHTLY ? 10 : 5);
+ initModel(ndocs);
+
+ if (VERBOSE) {
+ System.out.println("\n");
+ System.out.println("TEST: commitPercent=" + commitPercent);
+ System.out.println("TEST: softCommitPercent=" + softCommitPercent);
+ System.out.println("TEST: deletePercent=" + deletePercent);
+ System.out.println("TEST: deleteByQueryPercent=" + deleteByQueryPercent);
+ System.out.println("TEST: ndocs=" + ndocs);
+ System.out.println("TEST: nWriteThreads=" + nWriteThreads);
+ System.out.println("TEST: nReadThreads=" + nReadThreads);
+ System.out.println("TEST: maxConcurrentCommits=" + maxConcurrentCommits);
+ System.out.println("TEST: tombstones=" + tombstones);
+ System.out.println("TEST: operations=" + operations);
+ System.out.println("\n");
+ }
+
+ final AtomicInteger numCommitting = new AtomicInteger();
+
+ List<Thread> threads = new ArrayList<Thread>();
+
+ Directory dir = newDirectory();
+
+ final RandomIndexWriter writer = new RandomIndexWriter(random, dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)));
+ writer.setDoRandomForceMergeAssert(false);
+ writer.w.setInfoStream(VERBOSE ? System.out : null);
+ writer.commit();
+ reader = IndexReader.open(dir);
+
+ for (int i=0; i<nWriteThreads; i++) {
+ Thread thread = new Thread("WRITER"+i) {
+ Random rand = new Random(random.nextInt());
+
+ @Override
+ public void run() {
+ try {
+ while (operations.get() > 0) {
+ int oper = rand.nextInt(100);
+
+ if (oper < commitPercent) {
+ if (numCommitting.incrementAndGet() <= maxConcurrentCommits) {
+ Map<Integer,Long> newCommittedModel;
+ long version;
+ IndexReader oldReader;
+
+ synchronized(TestStressNRT.this) {
+ newCommittedModel = new HashMap<Integer,Long>(model); // take a snapshot
+ version = snapshotCount++;
+ oldReader = reader;
+ oldReader.incRef(); // increment the reference since we will use this for reopening
+ }
+
+ IndexReader newReader;
+ if (rand.nextInt(100) < softCommitPercent) {
+ // assertU(h.commit("softCommit","true"));
+ if (random.nextBoolean()) {
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": call writer.getReader");
+ }
+ newReader = writer.getReader(true);
+ } else {
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": reopen reader=" + oldReader + " version=" + version);
+ }
+ newReader = IndexReader.openIfChanged(oldReader, writer.w, true);
+ }
+ } else {
+ // assertU(commit());
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": commit+reopen reader=" + oldReader + " version=" + version);
+ }
+ writer.commit();
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": now reopen after commit");
+ }
+ newReader = IndexReader.openIfChanged(oldReader);
+ }
+
+ // Code below assumes newReader comes w/
+ // extra ref:
+ if (newReader == null) {
+ oldReader.incRef();
+ newReader = oldReader;
+ }
+
+ oldReader.decRef();
+
+ synchronized(TestStressNRT.this) {
+ // install the new reader if it's newest (and check the current version since another reader may have already been installed)
+ //System.out.println(Thread.currentThread().getName() + ": newVersion=" + newReader.getVersion());
+ assert newReader.getRefCount() > 0;
+ assert reader.getRefCount() > 0;
+ if (newReader.getVersion() > reader.getVersion()) {
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": install new reader=" + newReader);
+ }
+ reader.decRef();
+ reader = newReader;
+
+ // Silly: forces fieldInfos to be
+ // loaded so we don't hit IOE on later
+ // reader.toString
+ newReader.toString();
+
+ // install this snapshot only if it's newer than the current one
+ if (version >= committedModelClock) {
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": install new model version=" + version);
+ }
+ committedModel = newCommittedModel;
+ committedModelClock = version;
+ } else {
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": skip install new model version=" + version);
+ }
+ }
+ } else {
+ // if the same reader, don't decRef.
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": skip install new reader=" + newReader);
+ }
+ newReader.decRef();
+ }
+ }
+ }
+ numCommitting.decrementAndGet();
+ } else {
+
+ int id = rand.nextInt(ndocs);
+ Object sync = syncArr[id];
+
+ // set the lastId before we actually change it sometimes to try and
+ // uncover more race conditions between writing and reading
+ boolean before = random.nextBoolean();
+ if (before) {
+ lastId = id;
+ }
+
+ // We can't concurrently update the same document and retain our invariants of increasing values
+ // since we can't guarantee what order the updates will be executed.
+ synchronized (sync) {
+ Long val = model.get(id);
+ long nextVal = Math.abs(val)+1;
+
+ if (oper < commitPercent + deletePercent) {
+ // assertU("<delete><id>" + id + "</id></delete>");
+
+ // add tombstone first
+ if (tombstones) {
+ Document d = new Document();
+ d.add(new Field("id","-"+Integer.toString(id), Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
+ d.add(new Field(field, Long.toString(nextVal), Field.Store.YES, Field.Index.NO));
+ writer.updateDocument(new Term("id", "-"+Integer.toString(id)), d);
+ }
+
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": term delDocs id:" + id + " nextVal=" + nextVal);
+ }
+ writer.deleteDocuments(new Term("id",Integer.toString(id)));
+ model.put(id, -nextVal);
+ } else if (oper < commitPercent + deletePercent + deleteByQueryPercent) {
+ //assertU("<delete><query>id:" + id + "</query></delete>");
+
+ // add tombstone first
+ if (tombstones) {
+ Document d = new Document();
+ d.add(new Field("id","-"+Integer.toString(id), Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
+ d.add(new Field(field, Long.toString(nextVal), Field.Store.YES, Field.Index.NO));
+ writer.updateDocument(new Term("id", "-"+Integer.toString(id)), d);
+ }
+
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": query delDocs id:" + id + " nextVal=" + nextVal);
+ }
+ writer.deleteDocuments(new TermQuery(new Term("id", Integer.toString(id))));
+ model.put(id, -nextVal);
+ } else {
+ // assertU(adoc("id",Integer.toString(id), field, Long.toString(nextVal)));
+ Document d = new Document();
+ d.add(newField("id",Integer.toString(id), Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
+ d.add(newField(field, Long.toString(nextVal), Field.Store.YES, Field.Index.NO));
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": u id:" + id + " val=" + nextVal);
+ }
+ writer.updateDocument(new Term("id", Integer.toString(id)), d);
+ if (tombstones) {
+ // remove tombstone after new addition (this should be optional?)
+ writer.deleteDocuments(new Term("id","-"+Integer.toString(id)));
+ }
+ model.put(id, nextVal);
+ }
+ }
+
+ if (!before) {
+ lastId = id;
+ }
+ }
+ }
+ } catch (Throwable e) {
+ System.out.println(Thread.currentThread().getName() + ": FAILED: unexpected exception");
+ e.printStackTrace(System.out);
+ throw new RuntimeException(e);
+ }
+ }
+ };
+
+ threads.add(thread);
+ }
+
+ for (int i=0; i<nReadThreads; i++) {
+ Thread thread = new Thread("READER"+i) {
+ Random rand = new Random(random.nextInt());
+
+ @Override
+ public void run() {
+ try {
+ while (operations.decrementAndGet() >= 0) {
+ // bias toward a recently changed doc
+ int id = rand.nextInt(100) < 25 ? lastId : rand.nextInt(ndocs);
+
+ // when indexing, we update the index, then the model
+ // so when querying, we should first check the model, and then the index
+
+ long val;
+ IndexReader r;
+ synchronized(TestStressNRT.this) {
+ val = committedModel.get(id);
+ r = reader;
+ r.incRef();
+ }
+
+ if (VERBOSE) {
+ System.out.println("TEST: " + Thread.currentThread().getName() + ": s id=" + id + " val=" + val + " r=" + r.getVersion());
+ }
+
+ // sreq = req("wt","json", "q","id:"+Integer.toString(id), "omitHeader","true");
+ IndexSearcher searcher = new IndexSearcher(r);
+ Query q = new TermQuery(new Term("id",Integer.toString(id)));
+ TopDocs results = searcher.search(q, 10);
+
+ if (results.totalHits == 0 && tombstones) {
+ // if we couldn't find the doc, look for its tombstone
+ q = new TermQuery(new Term("id","-"+Integer.toString(id)));
+ results = searcher.search(q, 1);
+ if (results.totalHits == 0) {
+ if (val == -1L) {
+ // expected... no doc was added yet
+ r.decRef();
+ continue;
+ }
+ fail("No documents or tombstones found for id " + id + ", expected at least " + val + " reader=" + r);
+ }
+ }
+
+ if (results.totalHits == 0 && !tombstones) {
+ // nothing to do - we can't tell anything from a deleted doc without tombstones
+ } else {
+ // we should have found the document, or its tombstone
+ if (results.totalHits != 1) {
+ System.out.println("FAIL: hits id:" + id + " val=" + val);
+ for(ScoreDoc sd : results.scoreDocs) {
+ final Document doc = r.document(sd.doc);
+ System.out.println(" docID=" + sd.doc + " id:" + doc.get("id") + " foundVal=" + doc.get(field));
+ }
+ fail("id=" + id + " reader=" + r + " totalHits=" + results.totalHits);
+ }
+ Document doc = searcher.doc(results.scoreDocs[0].doc);
+ long foundVal = Long.parseLong(doc.get(field));
+ if (foundVal < Math.abs(val)) {
+ fail("foundVal=" + foundVal + " val=" + val + " id=" + id + " reader=" + r);
+ }
+ }
+
+ r.decRef();
+ }
+ } catch (Throwable e) {
+ operations.set(-1L);
+ System.out.println(Thread.currentThread().getName() + ": FAILED: unexpected exception");
+ e.printStackTrace(System.out);
+ throw new RuntimeException(e);
+ }
+ }
+ };
+
+ threads.add(thread);
+ }
+
+ for (Thread thread : threads) {
+ thread.start();
+ }
+
+ for (Thread thread : threads) {
+ thread.join();
+ }
+
+ writer.close();
+ if (VERBOSE) {
+ System.out.println("TEST: close reader=" + reader);
+ }
+ reader.close();
+ dir.close();
+ }
+}
fnp / pylucene.git / blobdiff