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Posted to oak-commits@jackrabbit.apache.org by mr...@apache.org on 2019/01/15 10:08:32 UTC

svn commit: r1851330 - /jackrabbit/oak/trunk/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/RollbackTest.java

Author: mreutegg
Date: Tue Jan 15 10:08:32 2019
New Revision: 1851330

URL: http://svn.apache.org/viewvc?rev=1851330&view=rev
Log:
OAK-7976: Non-blocking commit rollback

Add ignored test

Added:
    jackrabbit/oak/trunk/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/RollbackTest.java   (with props)

Added: jackrabbit/oak/trunk/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/RollbackTest.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/RollbackTest.java?rev=1851330&view=auto
==============================================================================
--- jackrabbit/oak/trunk/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/RollbackTest.java (added)
+++ jackrabbit/oak/trunk/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/RollbackTest.java Tue Jan 15 10:08:32 2019
@@ -0,0 +1,170 @@
+/*
+ * 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.plugins.document;
+
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import org.apache.jackrabbit.oak.api.CommitFailedException;
+import org.apache.jackrabbit.oak.plugins.document.UpdateOp.Key;
+import org.apache.jackrabbit.oak.plugins.document.UpdateOp.Operation;
+import org.apache.jackrabbit.oak.plugins.document.memory.MemoryDocumentStore;
+import org.apache.jackrabbit.oak.spi.state.NodeBuilder;
+import org.apache.jackrabbit.oak.stats.Clock;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Rule;
+import org.junit.Test;
+
+import static org.apache.jackrabbit.oak.plugins.document.TestUtils.isFinalCommitRootUpdate;
+import static org.apache.jackrabbit.oak.plugins.document.TestUtils.merge;
+import static org.hamcrest.Matchers.greaterThanOrEqualTo;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.fail;
+
+public class RollbackTest {
+
+    @Rule
+    public DocumentMKBuilderProvider builderProvider = new DocumentMKBuilderProvider();
+
+    private ExecutorService executorService = Executors.newCachedThreadPool();
+
+    private Clock clock = new Clock.Virtual();
+
+    @Before
+    public void before() throws Exception {
+        clock.waitUntil(System.currentTimeMillis());
+        Revision.setClock(clock);
+    }
+
+    @After
+    public void after() throws Exception {
+        executorService.shutdown();
+        executorService.awaitTermination(5, TimeUnit.SECONDS);
+    }
+
+    @AfterClass
+    public static void resetClock() {
+        Revision.resetClockToDefault();
+    }
+
+    @Ignore("OAK-7976")
+    @Test
+    public void nonBlocking() throws Exception {
+        TestStore store = new TestStore();
+        DocumentNodeStore ns = builderProvider.newBuilder()
+                .clock(clock).setDocumentStore(store).setAsyncDelay(0).build();
+        ns.setMaxBackOffMillis(0); // do not retry commits
+
+        // create initial node structure
+        NodeBuilder builder = ns.getRoot().builder();
+        builder.child("foo");
+        builder.child("bar");
+        builder.child("baz");
+        merge(ns, builder);
+
+        store.failCommitOnce.set(true);
+        // add a child to each of the nodes.
+        // the commit root will be on the root document
+        Future<CommitFailedException> f = executorService.submit(() -> {
+            NodeBuilder nb = ns.getRoot().builder();
+            nb.child("foo").child("n");
+            nb.child("bar").child("n");
+            nb.child("baz").child("n");
+            try {
+                merge(ns, nb);
+                fail("must throw CommitFailedException");
+                return null;
+            } catch (CommitFailedException e) {
+                // expected
+                return e;
+            }
+        });
+
+        store.commitFailed.await();
+        builder = ns.getRoot().builder();
+        builder.child("test");
+        merge(ns, builder);
+        long t1 = clock.getTime();
+
+        assertNotNull(f.get());
+        long t2 = clock.getTime();
+
+        assertFalse(store.failCommitOnce.get());
+        assertThat(t2 - t1,
+                greaterThanOrEqualTo(1000L));
+    }
+
+    private class TestStore extends MemoryDocumentStore {
+
+        final AtomicBoolean failCommitOnce = new AtomicBoolean();
+
+        final CountDownLatch commitFailed = new CountDownLatch(1);
+
+        @Override
+        public <T extends Document> T findAndUpdate(Collection<T> collection,
+                                                    UpdateOp update) {
+            if (collection == Collection.NODES
+                    && isFinalCommitRootUpdate(update)
+                    && failCommitOnce.compareAndSet(true, false)) {
+                commitFailed.countDown();
+                throw new DocumentStoreException("commit failed");
+            }
+            return super.findAndUpdate(collection, update);
+        }
+
+        @Override
+        public <T extends Document> List<T> createOrUpdate(Collection<T> collection,
+                                                           List<UpdateOp> updateOps) {
+            for (UpdateOp op : updateOps) {
+                if (isRollbackUpdate(op)) {
+                    try {
+                        // simulate a rollback operation that takes one second
+                        Thread.sleep(10);
+                        clock.waitUntil(clock.getTime() + 1000);
+                        break;
+                    } catch (InterruptedException e) {
+                        throw new DocumentStoreException(e);
+                    }
+                }
+            }
+            return super.createOrUpdate(collection, updateOps);
+        }
+
+        private boolean isRollbackUpdate(UpdateOp update) {
+            for (Map.Entry<Key, Operation> entry : update.getChanges().entrySet()) {
+                if (entry.getValue().type == Operation.Type.REMOVE_MAP_ENTRY
+                        && !entry.getKey().getName().equals(NodeDocument.COMMIT_ROOT)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+}

Propchange: jackrabbit/oak/trunk/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/RollbackTest.java
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