| /** |
| * 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.snapshot; |
| |
| import static org.junit.Assert.fail; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.DFSConfigKeys; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| /** |
| * Test snapshot diff report for the snapshot root descendant directory. |
| */ |
| public class TestSnapRootDescendantDiff extends TestSnapshotDiffReport { |
| @Before |
| public void setUp() throws Exception { |
| conf = new Configuration(); |
| conf.setBoolean( |
| DFSConfigKeys.DFS_NAMENODE_SNAPSHOT_CAPTURE_OPENFILES, true); |
| conf.setLong(DFSConfigKeys.DFS_NAMENODE_ACCESSTIME_PRECISION_KEY, 1); |
| conf.setBoolean( |
| DFSConfigKeys.DFS_NAMENODE_SNAPSHOT_SKIP_CAPTURE_ACCESSTIME_ONLY_CHANGE, |
| true); |
| conf.setBoolean( |
| DFSConfigKeys.DFS_NAMENODE_SNAPSHOT_DIFF_ALLOW_SNAP_ROOT_DESCENDANT, |
| false); |
| cluster = new MiniDFSCluster.Builder(conf).numDataNodes(3) |
| .format(true).build(); |
| cluster.waitActive(); |
| hdfs = cluster.getFileSystem(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| if (cluster != null) { |
| cluster.shutdown(); |
| cluster = null; |
| } |
| } |
| |
| @Test |
| public void testNonSnapRootDiffReport() throws Exception { |
| Path subsub1 = new Path(getSnapRootDir(), "subsub1"); |
| Path subsubsub1 = new Path(subsub1, "subsubsub1"); |
| hdfs.mkdirs(subsubsub1); |
| modifyAndCreateSnapshot(getSnapRootDir(), new Path[]{getSnapRootDir()}); |
| modifyAndCreateSnapshot(subsubsub1, new Path[]{getSnapRootDir()}); |
| |
| try { |
| hdfs.getSnapshotDiffReport(subsub1, "s1", "s2"); |
| fail("Expect exception when getting snapshot diff report: " + subsub1 |
| + " is not a snapshottable directory."); |
| } catch (IOException e) { |
| GenericTestUtils.assertExceptionContains( |
| "Directory is not a snapshottable directory: " + subsub1, e); |
| } |
| } |
| |
| } |