| /* |
| * 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 static org.junit.Assert.assertTrue; |
| |
| import java.util.List; |
| |
| import org.apache.jackrabbit.oak.plugins.document.memory.MemoryDocumentStore; |
| import org.apache.jackrabbit.oak.stats.Clock; |
| import org.apache.jackrabbit.oak.stats.Clock.Virtual; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import junitx.util.PrivateAccessor; |
| |
| public class DocumentLeaseUpdateRetryTest { |
| |
| private DocumentNodeStore ns; |
| private Virtual clock; |
| private TestStore ds; |
| |
| @Before |
| public void setup() throws Exception { |
| clock = new Clock.Virtual(); |
| ClusterNodeInfo.setClock(clock); |
| ds = new TestStore(); |
| ns = new DocumentMK.Builder().clock(clock).setDocumentStore(ds).setLeaseCheck(true).getNodeStore(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| ClusterNodeInfo.resetClockToDefault(); |
| ns.dispose(); |
| } |
| |
| @Test |
| public void testLeaseRetryLoop() throws Exception { |
| internalTestLeaseRetryLoop(false); |
| } |
| |
| @Test |
| public void testLeaseRetryLoopWithDelay() throws Exception { |
| // see OAK-5446 |
| // (simulates a very slow read access on the clusterNodes collection) |
| internalTestLeaseRetryLoop(true); |
| } |
| |
| private void internalTestLeaseRetryLoop(boolean withDelay) throws Exception { |
| ClusterNodeInfo clusterInfo = ns.getClusterInfo(); |
| long leaseTime = clusterInfo.getLeaseTime(); |
| long leaseEndTime1 = clusterInfo.getLeaseEndTime(); |
| // TODO: replace privateAccessor.getField with a test-only |
| // package-protected access |
| Long leaseUpdateInterval = (Long) PrivateAccessor.getField(clusterInfo, "leaseUpdateInterval"); |
| |
| // assert that lease is fine at this point |
| // do this indirectly by trying to invoke some DocumentNodeStore |
| // functionality |
| ns.checkpoint(1); |
| |
| // forward the virtual clock by more than the leaseUpdateInterval, to |
| // trigger a lease update |
| clock.waitUntil(clock.getTime() + leaseUpdateInterval + 1000); |
| // but also actually sleep more than 1s to give the background tasks of |
| // DNS a chance to run |
| Thread.sleep(2000); |
| |
| // assert leaseEndTime having been updated - ie lease having been |
| // updated |
| long leaseEndTime2 = clusterInfo.getLeaseEndTime(); |
| assertTrue(leaseEndTime1 < leaseEndTime2); |
| |
| // again assert that lease is fine -> do some dummy ns call |
| ns.checkpoint(2); |
| |
| if (withDelay) { |
| // mark the TestStore as delaying from now on |
| ds.setDelaying(true); |
| Thread.sleep(1200); |
| } |
| |
| // now forward the virtual clock by more than the lease time - which |
| // should cause lease to time out |
| clock.waitUntil(clock.getTime() + leaseTime + leaseUpdateInterval + 1000); |
| |
| // so the next call to the lease check wrapper should now run into the |
| // retry loop, as the lease has timed out |
| ns.checkpoint(3); // should not fail |
| } |
| |
| final class TestStore extends DocumentStoreWrapper { |
| |
| private boolean delaying = false; |
| |
| TestStore() { |
| super(new MemoryDocumentStore()); |
| } |
| |
| void setDelaying(boolean delaying) { |
| this.delaying = delaying; |
| } |
| |
| @Override |
| public <T extends Document> List<T> query(Collection<T> collection, String fromKey, String toKey, int limit) { |
| if (delaying && collection == Collection.CLUSTER_NODES) { |
| try { |
| // make the lookup on the clusterNodes collection *really* |
| // slow |
| Thread.sleep(10000); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| } |
| } |
| return super.query(collection, fromKey, toKey, limit); |
| } |
| } |
| } |