| /* |
| * 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.concurrent.TimeUnit; |
| |
| import org.apache.jackrabbit.oak.api.CommitFailedException; |
| import org.apache.jackrabbit.oak.plugins.migration.NodeStateTestUtils; |
| import org.apache.jackrabbit.oak.spi.state.ChildNodeEntry; |
| import org.apache.jackrabbit.oak.spi.state.NodeBuilder; |
| import org.apache.jackrabbit.oak.spi.state.NodeState; |
| import org.apache.jackrabbit.oak.spi.state.NodeStore; |
| import org.junit.Test; |
| |
| import static org.apache.jackrabbit.oak.plugins.document.TestUtils.disposeQuietly; |
| import static org.apache.jackrabbit.oak.plugins.document.TestUtils.merge; |
| import static org.apache.jackrabbit.oak.plugins.migration.NodeStateTestUtils.assertExists; |
| import static org.apache.jackrabbit.oak.plugins.migration.NodeStateTestUtils.assertMissing; |
| import static org.hamcrest.Matchers.containsInAnyOrder; |
| import static org.hamcrest.Matchers.equalTo; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| public class RecoveryTest extends AbstractTwoNodeTest { |
| |
| private FailingDocumentStore fds1; |
| |
| public RecoveryTest(DocumentStoreFixture fixture) { |
| super(fixture); |
| } |
| |
| @Override |
| protected DocumentStore customize(DocumentStore store) { |
| // wrap the first store with a FailingDocumentStore |
| FailingDocumentStore fds = new FailingDocumentStore(store); |
| if (fds1 == null) { |
| fds1 = fds; |
| } |
| return fds; |
| } |
| |
| @Test |
| public void recoverOther() throws Exception { |
| NodeBuilder builder = ds1.getRoot().builder(); |
| builder.child("node"); |
| builder.child("parent").child("test").child("c1"); |
| builder.child("parent").child("other").child("c1"); |
| merge(ds1, builder); |
| ds1.runBackgroundOperations(); |
| ds2.runBackgroundOperations(); |
| builder = ds2.getRoot().builder(); |
| builder.child("node").setProperty("p", 1); |
| builder.child("parent").child("test").child("c2"); |
| builder.child("parent").child("other").child("c2"); |
| merge(ds2, builder); |
| ds2.runBackgroundOperations(); |
| ds1.runBackgroundOperations(); |
| |
| waitOneMinute(); |
| ds1.runBackgroundOperations(); |
| ds2.runBackgroundOperations(); |
| ds1.renewClusterIdLease(); |
| ds2.renewClusterIdLease(); |
| |
| // apply several changes without background update |
| // and then simulate a killed process |
| builder = ds1.getRoot().builder(); |
| builder.child("node").setProperty("p", 2); |
| builder.child("parent").child("test").child("c1").remove(); |
| builder.child("parent").child("test").child("c3"); |
| merge(ds1, builder); |
| |
| builder = ds1.getRoot().builder(); |
| builder.child("parent").child("other").child("c3"); |
| merge(ds1, builder); |
| |
| builder = ds1.getRoot().builder(); |
| builder.child("node").setProperty("p", 3); |
| merge(ds1, builder); |
| |
| builder = ds1.getRoot().builder(); |
| builder.child("node").child("wont-make-it"); |
| |
| // simulate crashed process |
| fds1.fail().after(1).eternally(); |
| try { |
| merge(ds1, builder); |
| fail("merge must fail"); |
| } catch (CommitFailedException e) { |
| // expected |
| } |
| disposeQuietly(ds1); |
| |
| waitOneMinute(); |
| ds2.runBackgroundOperations(); |
| ds2.renewClusterIdLease(); |
| listChildren(ds2, "/"); |
| listChildren(ds2, "/parent"); |
| listChildren(ds2, "/parent/test"); |
| |
| builder = ds2.getRoot().builder(); |
| builder.child("node").setProperty("q", 1); |
| merge(ds2, builder); |
| |
| waitOneMinute(); |
| ds2.runBackgroundOperations(); |
| ds2.renewClusterIdLease(); |
| |
| waitOneMinute(); |
| ds2.runBackgroundOperations(); |
| ds2.renewClusterIdLease(); |
| |
| // before recovery, changes by ds1 are not visible |
| NodeState root = ds2.getRoot(); |
| assertExists(root, "parent/test/c1"); |
| assertMissing(root, "parent/test/c3"); |
| assertMissing(root, "node/wont-make-it"); |
| |
| // clusterId 1 lease expired |
| assertTrue(ds2.getLastRevRecoveryAgent().isRecoveryNeeded()); |
| int numDocs = ds2.getLastRevRecoveryAgent().recover(1); |
| assertThat(numDocs, equalTo(4)); |
| |
| // still not visible because background read did not yet happen |
| NodeState root1 = ds2.getRoot(); |
| assertExists(root1, "parent/test/c1"); |
| assertMissing(root1, "parent/test/c3"); |
| assertMissing(root1, "node/wont-make-it"); |
| |
| ds2.runBackgroundOperations(); |
| // now changes must be visible |
| NodeState root2 = ds2.getRoot(); |
| |
| assertMissing(root2, "parent/test/c1"); |
| assertExists(root2, "parent/test/c3"); |
| assertMissing(root2, "node/wont-make-it"); |
| |
| TrackingDiff diff = new TrackingDiff(); |
| root2.compareAgainstBaseState(root1, diff); |
| assertThat(diff.modified, containsInAnyOrder("/parent", "/parent/other", "/parent/test", "/node")); |
| assertThat(diff.added, containsInAnyOrder("/parent/test/c3", "/parent/other/c3")); |
| assertThat(diff.deleted, containsInAnyOrder("/parent/test/c1")); |
| } |
| |
| private void waitOneMinute() throws Exception { |
| clock.waitUntil(clock.getTime() + TimeUnit.MINUTES.toMillis(1)); |
| } |
| |
| private static void listChildren(NodeStore ns, String path) { |
| NodeStateTestUtils.getNodeState(ns.getRoot(), path).getChildNodeEntries().forEach(ChildNodeEntry::getNodeState); |
| } |
| } |