| /** |
| * 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.hadoop.hdfs.server.namenode; |
| |
| import java.net.BindException; |
| import java.util.Random; |
| |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_PERIOD_KEY; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_TXNS_KEY; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_EDIT_LOG_AUTOROLL_CHECK_INTERVAL_MS; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_EDIT_LOG_AUTOROLL_MULTIPLIER_THRESHOLD; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.MiniDFSNNTopology; |
| import org.apache.hadoop.hdfs.server.namenode.FSNamesystem.NameNodeEditLogRoller; |
| import org.apache.hadoop.hdfs.server.namenode.ha.HATestUtil; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import com.google.common.base.Supplier; |
| |
| public class TestEditLogAutoroll { |
| |
| private Configuration conf; |
| private MiniDFSCluster cluster; |
| private NameNode nn0; |
| private FileSystem fs; |
| private FSEditLog editLog; |
| private final Random random = new Random(); |
| |
| private static final Log LOG = LogFactory.getLog(TestEditLog.class); |
| |
| @Before |
| public void setUp() throws Exception { |
| conf = new Configuration(); |
| // Stall the standby checkpointer in two ways |
| conf.setLong(DFS_NAMENODE_CHECKPOINT_PERIOD_KEY, Long.MAX_VALUE); |
| conf.setLong(DFS_NAMENODE_CHECKPOINT_TXNS_KEY, 20); |
| // Make it autoroll after 10 edits |
| conf.setFloat(DFS_NAMENODE_EDIT_LOG_AUTOROLL_MULTIPLIER_THRESHOLD, 0.5f); |
| conf.setInt(DFS_NAMENODE_EDIT_LOG_AUTOROLL_CHECK_INTERVAL_MS, 100); |
| |
| int retryCount = 0; |
| while (true) { |
| try { |
| int basePort = 10060 + random.nextInt(100) * 2; |
| MiniDFSNNTopology topology = new MiniDFSNNTopology() |
| .addNameservice(new MiniDFSNNTopology.NSConf("ns1") |
| .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(basePort)) |
| .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(basePort + 1))); |
| |
| cluster = new MiniDFSCluster.Builder(conf) |
| .nnTopology(topology) |
| .numDataNodes(0) |
| .build(); |
| cluster.waitActive(); |
| |
| nn0 = cluster.getNameNode(0); |
| fs = HATestUtil.configureFailoverFs(cluster, conf); |
| |
| cluster.transitionToActive(0); |
| |
| fs = cluster.getFileSystem(0); |
| editLog = nn0.getNamesystem().getEditLog(); |
| ++retryCount; |
| break; |
| } catch (BindException e) { |
| LOG.info("Set up MiniDFSCluster failed due to port conflicts, retry " |
| + retryCount + " times"); |
| } |
| } |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| if (fs != null) { |
| fs.close(); |
| } |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| |
| @Test(timeout=60000) |
| public void testEditLogAutoroll() throws Exception { |
| // Make some edits |
| final long startTxId = editLog.getCurSegmentTxId(); |
| for (int i=0; i<11; i++) { |
| fs.mkdirs(new Path("testEditLogAutoroll-" + i)); |
| } |
| // Wait for the NN to autoroll |
| GenericTestUtils.waitFor(new Supplier<Boolean>() { |
| @Override |
| public Boolean get() { |
| return editLog.getCurSegmentTxId() > startTxId; |
| } |
| }, 1000, 5000); |
| // Transition to standby and make sure the roller stopped |
| nn0.transitionToStandby(); |
| GenericTestUtils.assertNoThreadsMatching( |
| ".*" + NameNodeEditLogRoller.class.getSimpleName() + ".*"); |
| } |
| } |