| /** |
| * 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; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.protocol.BlockStoragePolicy; |
| import org.apache.hadoop.hdfs.server.blockmanagement.BlockStoragePolicySuite; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestApplyingStoragePolicy { |
| private static final short REPL = 1; |
| private static final int SIZE = 128; |
| |
| private static Configuration conf; |
| private static MiniDFSCluster cluster; |
| private static DistributedFileSystem fs; |
| |
| @Before |
| public void clusterSetUp() throws IOException { |
| conf = new HdfsConfiguration(); |
| cluster = new MiniDFSCluster.Builder(conf).numDataNodes(REPL).build(); |
| cluster.waitActive(); |
| fs = cluster.getFileSystem(); |
| } |
| |
| @After |
| public void clusterShutdown() throws IOException{ |
| if(fs != null) { |
| fs.close(); |
| fs = null; |
| } |
| if(cluster != null) { |
| cluster.shutdown(); |
| cluster = null; |
| } |
| } |
| |
| @Test |
| public void testStoragePolicyByDefault() throws Exception { |
| final Path foo = new Path("/foo"); |
| final Path bar = new Path(foo, "bar"); |
| final Path wow = new Path(bar, "wow"); |
| final Path fooz = new Path(bar, "/fooz"); |
| DFSTestUtil.createFile(fs, wow, SIZE, REPL, 0); |
| |
| final BlockStoragePolicySuite suite = BlockStoragePolicySuite |
| .createDefaultSuite(); |
| final BlockStoragePolicy hot = suite.getPolicy("HOT"); |
| |
| /* |
| * test: storage policy is HOT by default or inherited from nearest |
| * ancestor, if not explicitly specified for newly created dir/file. |
| */ |
| assertEquals(fs.getStoragePolicy(foo), hot); |
| assertEquals(fs.getStoragePolicy(bar), hot); |
| assertEquals(fs.getStoragePolicy(wow), hot); |
| try { |
| fs.getStoragePolicy(fooz); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| } |
| |
| @Test |
| public void testSetAndUnsetStoragePolicy() throws Exception { |
| final Path foo = new Path("/foo"); |
| final Path bar = new Path(foo, "bar"); |
| final Path wow = new Path(bar, "wow"); |
| final Path fooz = new Path(bar, "/fooz"); |
| DFSTestUtil.createFile(fs, wow, SIZE, REPL, 0); |
| |
| final BlockStoragePolicySuite suite = BlockStoragePolicySuite |
| .createDefaultSuite(); |
| final BlockStoragePolicy warm = suite.getPolicy("WARM"); |
| final BlockStoragePolicy cold = suite.getPolicy("COLD"); |
| final BlockStoragePolicy hot = suite.getPolicy("HOT"); |
| |
| /* |
| * test: set storage policy |
| */ |
| fs.setStoragePolicy(foo, warm.getName()); |
| fs.setStoragePolicy(bar, cold.getName()); |
| fs.setStoragePolicy(wow, hot.getName()); |
| try { |
| fs.setStoragePolicy(fooz, warm.getName()); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| |
| /* |
| * test: get storage policy after set |
| */ |
| assertEquals(fs.getStoragePolicy(foo), warm); |
| assertEquals(fs.getStoragePolicy(bar), cold); |
| assertEquals(fs.getStoragePolicy(wow), hot); |
| try { |
| fs.getStoragePolicy(fooz); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| |
| /* |
| * test: unset storage policy |
| */ |
| fs.unsetStoragePolicy(foo); |
| fs.unsetStoragePolicy(bar); |
| fs.unsetStoragePolicy(wow); |
| try { |
| fs.unsetStoragePolicy(fooz); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| |
| /* |
| * test: get storage policy after unset |
| */ |
| assertEquals(fs.getStoragePolicy(foo), hot); |
| assertEquals(fs.getStoragePolicy(bar), hot); |
| assertEquals(fs.getStoragePolicy(wow), hot); |
| try { |
| fs.getStoragePolicy(fooz); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| } |
| |
| @Test |
| public void testNestedStoragePolicy() throws Exception { |
| final Path foo = new Path("/foo"); |
| final Path bar = new Path(foo, "bar"); |
| final Path wow = new Path(bar, "wow"); |
| final Path fooz = new Path("/foos"); |
| DFSTestUtil.createFile(fs, wow, SIZE, REPL, 0); |
| |
| final BlockStoragePolicySuite suite = BlockStoragePolicySuite |
| .createDefaultSuite(); |
| final BlockStoragePolicy warm = suite.getPolicy("WARM"); |
| final BlockStoragePolicy cold = suite.getPolicy("COLD"); |
| final BlockStoragePolicy hot = suite.getPolicy("HOT"); |
| |
| /* |
| * test: set storage policy |
| */ |
| fs.setStoragePolicy(foo, warm.getName()); |
| fs.setStoragePolicy(bar, cold.getName()); |
| fs.setStoragePolicy(wow, hot.getName()); |
| try { |
| fs.setStoragePolicy(fooz, warm.getName()); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| |
| /* |
| * test: get storage policy after set |
| */ |
| assertEquals(fs.getStoragePolicy(foo), warm); |
| assertEquals(fs.getStoragePolicy(bar), cold); |
| assertEquals(fs.getStoragePolicy(wow), hot); |
| try { |
| fs.getStoragePolicy(fooz); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| |
| /* |
| * test: unset storage policy in the case of being nested |
| */ |
| // unset wow |
| fs.unsetStoragePolicy(wow); |
| // inherit storage policy from wow's nearest ancestor |
| assertEquals(fs.getStoragePolicy(wow), cold); |
| // unset bar |
| fs.unsetStoragePolicy(bar); |
| // inherit storage policy from bar's nearest ancestor |
| assertEquals(fs.getStoragePolicy(bar), warm); |
| // unset foo |
| fs.unsetStoragePolicy(foo); |
| // default storage policy is applied, since no more available ancestors |
| assertEquals(fs.getStoragePolicy(foo), hot); |
| // unset fooz |
| try { |
| fs.unsetStoragePolicy(fooz); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| |
| /* |
| * test: default storage policy is applied, since no explicit policies from |
| * ancestors are available |
| */ |
| assertEquals(fs.getStoragePolicy(foo), hot); |
| assertEquals(fs.getStoragePolicy(bar), hot); |
| assertEquals(fs.getStoragePolicy(wow), hot); |
| try { |
| fs.getStoragePolicy(fooz); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| } |
| |
| @Test |
| public void testSetAndGetStoragePolicy() throws IOException { |
| final Path foo = new Path("/foo"); |
| final Path bar = new Path(foo, "bar"); |
| final Path fooz = new Path("/fooz"); |
| DFSTestUtil.createFile(fs, bar, SIZE, REPL, 0); |
| |
| final BlockStoragePolicySuite suite = BlockStoragePolicySuite |
| .createDefaultSuite(); |
| final BlockStoragePolicy warm = suite.getPolicy("WARM"); |
| final BlockStoragePolicy cold = suite.getPolicy("COLD"); |
| final BlockStoragePolicy hot = suite.getPolicy("HOT"); |
| |
| assertEquals(fs.getStoragePolicy(foo), hot); |
| assertEquals(fs.getStoragePolicy(bar), hot); |
| try { |
| fs.getStoragePolicy(fooz); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| |
| /* |
| * test: set storage policy |
| */ |
| fs.setStoragePolicy(foo, warm.getName()); |
| fs.setStoragePolicy(bar, cold.getName()); |
| try { |
| fs.setStoragePolicy(fooz, warm.getName()); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| |
| /* |
| * test: get storage policy after set |
| */ |
| assertEquals(fs.getStoragePolicy(foo), warm); |
| assertEquals(fs.getStoragePolicy(bar), cold); |
| try { |
| fs.getStoragePolicy(fooz); |
| } catch (Exception e) { |
| assertTrue(e instanceof FileNotFoundException); |
| } |
| } |
| } |