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From mikemcc...@apache.org
Subject svn commit: r476422 - /lucene/java/trunk/src/test/org/apache/lucene/index/TestStressIndexing.java
Date Sat, 18 Nov 2006 02:55:14 GMT
Author: mikemccand
Date: Fri Nov 17 18:55:14 2006
New Revision: 476422

URL: http://svn.apache.org/viewvc?view=rev&rev=476422
Log:
Lockless commits: LUCENE-701

Added:
    lucene/java/trunk/src/test/org/apache/lucene/index/TestStressIndexing.java

Added: lucene/java/trunk/src/test/org/apache/lucene/index/TestStressIndexing.java
URL: http://svn.apache.org/viewvc/lucene/java/trunk/src/test/org/apache/lucene/index/TestStressIndexing.java?view=auto&rev=476422
==============================================================================
--- lucene/java/trunk/src/test/org/apache/lucene/index/TestStressIndexing.java (added)
+++ lucene/java/trunk/src/test/org/apache/lucene/index/TestStressIndexing.java Fri Nov 17
18:55:14 2006
@@ -0,0 +1,173 @@
+package org.apache.lucene.index;
+
+/**
+ * Copyright 2004 The Apache Software Foundation
+ *
+ * Licensed 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 org.apache.lucene.util.*;
+import org.apache.lucene.store.*;
+import org.apache.lucene.document.*;
+import org.apache.lucene.analysis.*;
+import org.apache.lucene.index.*;
+import org.apache.lucene.search.*;
+import org.apache.lucene.queryParser.*;
+
+import junit.framework.TestCase;
+
+import java.util.Random;
+import java.io.File;
+
+public class TestStressIndexing extends TestCase {
+  private static final Analyzer ANALYZER = new SimpleAnalyzer();
+  private static final Random RANDOM = new Random();
+  private static Searcher SEARCHER;
+
+  private static int RUN_TIME_SEC = 15;
+
+  private static class IndexerThread extends Thread {
+    IndexModifier modifier;
+    int nextID;
+    public int count;
+    boolean failed;
+
+    public IndexerThread(IndexModifier modifier) {
+      this.modifier = modifier;
+    }
+
+    public void run() {
+      long stopTime = System.currentTimeMillis() + 1000*RUN_TIME_SEC;
+      try {
+        while(true) {
+
+          if (System.currentTimeMillis() > stopTime) {
+            break;
+          }
+
+          // Add 10 docs:
+          for(int j=0; j<10; j++) {
+            Document d = new Document();
+            int n = RANDOM.nextInt();
+            d.add(new Field("id", Integer.toString(nextID++), Field.Store.YES, Field.Index.UN_TOKENIZED));
+            d.add(new Field("contents", English.intToEnglish(n), Field.Store.NO, Field.Index.TOKENIZED));
+            modifier.addDocument(d);
+          }
+
+          // Delete 5 docs:
+          int deleteID = nextID;
+          for(int j=0; j<5; j++) {
+            modifier.deleteDocuments(new Term("id", ""+deleteID));
+            deleteID -= 2;
+          }
+
+          count++;
+        }
+        
+        modifier.close();
+
+      } catch (Exception e) {
+        System.out.println(e.toString());
+        e.printStackTrace();
+        failed = true;
+      }
+    }
+  }
+
+  private static class SearcherThread extends Thread {
+    private Directory directory;
+    public int count;
+    boolean failed;
+
+    public SearcherThread(Directory directory) {
+      this.directory = directory;
+    }
+
+    public void run() {
+      long stopTime = System.currentTimeMillis() + 1000*RUN_TIME_SEC;
+      try {
+        while(true) {
+          for (int i=0; i<100; i++) {
+            (new IndexSearcher(directory)).close();
+          }
+          count += 100;
+          if (System.currentTimeMillis() > stopTime) {
+            break;
+          }
+        }
+      } catch (Exception e) {
+        System.out.println(e.toString());
+        e.printStackTrace();
+        failed = true;
+      }
+    }
+  }
+
+  /*
+    Run one indexer and 2 searchers against single index as
+    stress test.
+  */
+  public void runStressTest(Directory directory) throws Exception {
+    IndexModifier modifier = new IndexModifier(directory, ANALYZER, true);
+
+    // One modifier that writes 10 docs then removes 5, over
+    // and over:
+    IndexerThread indexerThread = new IndexerThread(modifier);
+    indexerThread.start();
+      
+    // Two searchers that constantly just re-instantiate the searcher:
+    SearcherThread searcherThread1 = new SearcherThread(directory);
+    searcherThread1.start();
+
+    SearcherThread searcherThread2 = new SearcherThread(directory);
+    searcherThread2.start();
+
+    indexerThread.join();
+    searcherThread1.join();
+    searcherThread2.join();
+    assertTrue("hit unexpected exception in indexer", !indexerThread.failed);
+    assertTrue("hit unexpected exception in search1", !searcherThread1.failed);
+    assertTrue("hit unexpected exception in search2", !searcherThread2.failed);
+    //System.out.println("    Writer: " + indexerThread.count + " iterations");
+    //System.out.println("Searcher 1: " + searcherThread1.count + " searchers created");
+    //System.out.println("Searcher 2: " + searcherThread2.count + " searchers created");
+  }
+
+  /*
+    Run above stress test against RAMDirectory and then
+    FSDirectory.
+  */
+  public void testStressIndexAndSearching() throws Exception {
+
+    // First in a RAM directory:
+    Directory directory = new RAMDirectory();
+    runStressTest(directory);
+    directory.close();
+
+    // Second in an FSDirectory:
+    String tempDir = System.getProperty("java.io.tmpdir");
+    File dirPath = new File(tempDir, "lucene.test.stress");
+    directory = FSDirectory.getDirectory(dirPath, true);
+    runStressTest(directory);
+    directory.close();
+    rmDir(dirPath);
+  }
+
+  private void rmDir(File dir) {
+    File[] files = dir.listFiles();
+    for (int i = 0; i < files.length; i++) {
+      files[i].delete();
+    }
+    dir.delete();
+  }
+}



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