| /** |
| * 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 junit.framework.TestCase; |
| import java.io.*; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.*; |
| import org.apache.hadoop.hdfs.server.datanode.SimulatedFSDataset; |
| |
| public class TestSetrepIncreasing extends TestCase { |
| static void setrep(int fromREP, int toREP, boolean simulatedStorage) throws IOException { |
| Configuration conf = new HdfsConfiguration(); |
| if (simulatedStorage) { |
| conf.setBoolean(SimulatedFSDataset.CONFIG_PROPERTY_SIMULATED, true); |
| } |
| conf.set(DFSConfigKeys.DFS_REPLICATION_KEY, "" + fromREP); |
| conf.setLong(DFSConfigKeys.DFS_BLOCKREPORT_INTERVAL_MSEC_KEY, 1000L); |
| conf.set(DFSConfigKeys.DFS_NAMENODE_REPLICATION_PENDING_TIMEOUT_SEC_KEY, Integer.toString(2)); |
| MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(10).build(); |
| FileSystem fs = cluster.getFileSystem(); |
| assertTrue("Not a HDFS: "+fs.getUri(), fs instanceof DistributedFileSystem); |
| |
| try { |
| Path root = TestDFSShell.mkdir(fs, |
| new Path("/test/setrep" + fromREP + "-" + toREP)); |
| Path f = TestDFSShell.writeFile(fs, new Path(root, "foo")); |
| |
| // Verify setrep for changing replication |
| { |
| String[] args = {"-setrep", "-w", "" + toREP, "" + f}; |
| FsShell shell = new FsShell(); |
| shell.setConf(conf); |
| try { |
| assertEquals(0, shell.run(args)); |
| } catch (Exception e) { |
| assertTrue("-setrep " + e, false); |
| } |
| } |
| |
| //get fs again since the old one may be closed |
| fs = cluster.getFileSystem(); |
| FileStatus file = fs.getFileStatus(f); |
| long len = file.getLen(); |
| for(BlockLocation locations : fs.getFileBlockLocations(file, 0, len)) { |
| assertTrue(locations.getHosts().length == toREP); |
| } |
| TestDFSShell.show("done setrep waiting: " + root); |
| } finally { |
| try {fs.close();} catch (Exception e) {} |
| cluster.shutdown(); |
| } |
| } |
| |
| public void testSetrepIncreasing() throws IOException { |
| setrep(3, 7, false); |
| } |
| public void testSetrepIncreasingSimulatedStorage() throws IOException { |
| setrep(3, 7, true); |
| } |
| } |