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From mreut...@apache.org
Subject svn commit: r1501218 - /jackrabbit/oak/trunk/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/ConcurrentFileOperationsTest.java
Date Tue, 09 Jul 2013 12:25:15 GMT
Author: mreutegg
Date: Tue Jul  9 12:25:15 2013
New Revision: 1501218

URL: http://svn.apache.org/r1501218
Log:
OAK-893: MongoMK may fail with MicroKernelException under concurrent commits
- Test (currently ignored when running with MongoMK)

Added:
    jackrabbit/oak/trunk/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/ConcurrentFileOperationsTest.java
  (with props)

Added: jackrabbit/oak/trunk/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/ConcurrentFileOperationsTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/ConcurrentFileOperationsTest.java?rev=1501218&view=auto
==============================================================================
--- jackrabbit/oak/trunk/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/ConcurrentFileOperationsTest.java
(added)
+++ jackrabbit/oak/trunk/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/ConcurrentFileOperationsTest.java
Tue Jul  9 12:25:15 2013
@@ -0,0 +1,190 @@
+/*
+ * 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.
+ */
+package org.apache.jackrabbit.oak.jcr;
+
+import java.io.ByteArrayInputStream;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+
+import org.apache.jackrabbit.commons.JcrUtils;
+import org.apache.jackrabbit.oak.commons.PathUtils;
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assume.assumeTrue;
+
+/**
+ * File related write operations on the repository.
+ */
+public class ConcurrentFileOperationsTest extends AbstractRepositoryTest {
+
+    private static final Logger log = LoggerFactory.getLogger(ConcurrentFileOperationsTest.class);
+    private static final int NUM_WRITERS = 10;
+    private static final byte[] DATA = new byte[8];
+
+    static {
+        new Random(0).nextBytes(DATA);
+    }
+
+    private Session session;
+    private Node testRootNode;
+
+    public ConcurrentFileOperationsTest(NodeStoreFixture fixture) {
+        super(fixture);
+    }
+
+    @Before
+    public void setup() throws RepositoryException {
+        session = getAdminSession();
+        testRootNode = JcrUtils.getOrAddNode(session.getRootNode(),
+                "test-node", "nt:unstructured");
+        session.save();
+    }
+
+    /**
+     * Multiple threads create and rename files.
+     */
+    @Test
+    public void concurrent() throws Exception {
+        // OAK-893
+        assumeTrue(fixture != NodeStoreFixture.MONGO_MK);
+        List<Session> sessions = new ArrayList<Session>();
+        for (int i = 0; i < NUM_WRITERS; i++) {
+            sessions.add(createAdminSession());
+            testRootNode.addNode("session-" + i, "nt:unstructured");
+        }
+        addFile(testRootNode, "dummy");
+        session.save();
+        final Map<String, Exception> exceptions = Collections.synchronizedMap(
+                new HashMap<String, Exception>());
+        List<Thread> writers = new ArrayList<Thread>();
+        for (int i = 0; i < sessions.size(); i++) {
+            final Session s = sessions.get(i);
+            final String path = testRootNode.getPath() + "/session-" + i;
+            writers.add(new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        s.refresh(false);
+                        Node n = s.getNode(path);
+                        for (int i = 0; i < 10; i++) {
+                            String tmpFile = "file-" + i + ".tmp";
+                            // create
+                            addFile(n, tmpFile);
+                            s.save();
+                            String srcPath = n.getPath() + "/" + tmpFile;
+                            String destPath = n.getPath() + "/file-" + i + ".bin";
+                            // rename
+                            s.move(srcPath, destPath);
+                            s.save();
+                        }
+
+                    } catch (RepositoryException e) {
+                        exceptions.put(path, e);
+                    }
+                }
+            }));
+        }
+        for (Thread t : writers) {
+            t.start();
+        }
+        for (Thread t : writers) {
+            t.join();
+        }
+        for (Session s : sessions) {
+            s.logout();
+        }
+        for (Map.Entry<String, Exception> entry : exceptions.entrySet()) {
+            log.info("Worker (" + entry.getKey() + ") failed with exception: " + entry.getValue().toString());
+            throw entry.getValue();
+        }
+    }
+
+    @Test
+    public void interleavingOperations1() throws Exception {
+        Node folder1 = testRootNode.addNode("folder1", "nt:unstructured");
+        Node folder2 = testRootNode.addNode("folder2", "nt:unstructured");
+        Node file1 = addFile(session.getNode(folder1.getPath()), "file1.tmp");
+        Node file2 = addFile(session.getNode(folder2.getPath()), "file2.tmp");
+        session.save();
+
+        Session s1 = createAdminSession();
+        Session s2 = createAdminSession();
+        try {
+            rename(s1.getNode(file1.getPath()), "file1.bin");
+            rename(s2.getNode(file2.getPath()), "file2.bin");
+            s1.save();
+            s2.save();
+        } finally {
+            s1.logout();
+            s2.logout();
+        }
+    }
+
+    @Test
+    public void interleavingOperations2() throws Exception {
+        Node folder1 = testRootNode.addNode("folder1", "nt:unstructured");
+        Node folder2 = testRootNode.addNode("folder2", "nt:unstructured");
+        addFile(testRootNode, "dummy");
+        session.save();
+
+        Session s1 = createAdminSession();
+        Session s2 = createAdminSession();
+        try {
+            Node file1 = addFile(s1.getNode(folder1.getPath()), "file1.tmp");
+            Node file2 = addFile(s2.getNode(folder2.getPath()), "file2.tmp");
+            s1.save();
+            s2.save();
+            rename(file1, "file1.bin");
+            rename(file2, "file2.bin");
+            s1.save();
+            s2.save();
+        } finally {
+            s1.logout();
+            s2.logout();
+        }
+        session.refresh(false);
+        assertTrue(session.nodeExists(folder1.getPath() + "/file1.bin"));
+        assertFalse(session.nodeExists(folder1.getPath() + "/file1.tmp"));
+        assertTrue(session.nodeExists(folder2.getPath() + "/file2.bin"));
+        assertFalse(session.nodeExists(folder2.getPath() + "/file2.tmp"));
+    }
+
+    private static Node addFile(Node parent, String name)
+            throws RepositoryException {
+        return JcrUtils.putFile(parent, name,
+                "application/octet-stream", new ByteArrayInputStream(DATA));
+    }
+
+    private static void rename(Node node, String name)
+            throws RepositoryException {
+        String destPath = PathUtils.getParentPath(node.getPath()) + "/" + name;
+        node.getSession().move(node.getPath(), destPath);
+    }
+}

Propchange: jackrabbit/oak/trunk/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/ConcurrentFileOperationsTest.java
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    svn:eol-style = native

Propchange: jackrabbit/oak/trunk/oak-jcr/src/test/java/org/apache/jackrabbit/oak/jcr/ConcurrentFileOperationsTest.java
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    svn:keywords = Author Date Id Revision Rev URL



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