[120] | 1 | /** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
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| 3 | * or more contributor license agreements. See the NOTICE file |
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| 4 | * distributed with this work for additional information |
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| 5 | * regarding copyright ownership. The ASF licenses this file |
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| 6 | * to you under the Apache License, Version 2.0 (the |
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| 7 | * "License"); you may not use this file except in compliance |
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| 8 | * with the License. You may obtain a copy of the License at |
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| 9 | * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 11 | * |
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| 12 | * Unless required by applicable law or agreed to in writing, software |
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| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 15 | * See the License for the specific language governing permissions and |
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| 16 | * limitations under the License. |
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| 17 | */ |
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| 18 | package org.apache.hadoop.hdfs; |
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| 19 | |
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| 20 | import junit.framework.TestCase; |
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| 21 | import java.io.*; |
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| 22 | |
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| 23 | import org.apache.hadoop.conf.Configuration; |
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| 24 | import org.apache.hadoop.fs.*; |
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| 25 | import org.apache.hadoop.hdfs.server.datanode.SimulatedFSDataset; |
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| 26 | |
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| 27 | public class TestSetrepIncreasing extends TestCase { |
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| 28 | static void setrep(int fromREP, int toREP, boolean simulatedStorage) throws IOException { |
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| 29 | Configuration conf = new Configuration(); |
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| 30 | if (simulatedStorage) { |
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| 31 | conf.setBoolean(SimulatedFSDataset.CONFIG_PROPERTY_SIMULATED, true); |
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| 32 | } |
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| 33 | conf.set("dfs.replication", "" + fromREP); |
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| 34 | conf.setLong("dfs.blockreport.intervalMsec", 1000L); |
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| 35 | conf.set("dfs.replication.pending.timeout.sec", Integer.toString(2)); |
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| 36 | MiniDFSCluster cluster = new MiniDFSCluster(conf, 10, true, null); |
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| 37 | FileSystem fs = cluster.getFileSystem(); |
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| 38 | assertTrue("Not a HDFS: "+fs.getUri(), fs instanceof DistributedFileSystem); |
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| 39 | |
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| 40 | try { |
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| 41 | Path root = TestDFSShell.mkdir(fs, |
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| 42 | new Path("/test/setrep" + fromREP + "-" + toREP)); |
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| 43 | Path f = TestDFSShell.writeFile(fs, new Path(root, "foo")); |
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| 44 | |
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| 45 | // Verify setrep for changing replication |
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| 46 | { |
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| 47 | String[] args = {"-setrep", "-w", "" + toREP, "" + f}; |
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| 48 | FsShell shell = new FsShell(); |
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| 49 | shell.setConf(conf); |
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| 50 | try { |
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| 51 | assertEquals(0, shell.run(args)); |
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| 52 | } catch (Exception e) { |
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| 53 | assertTrue("-setrep " + e, false); |
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| 54 | } |
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| 55 | } |
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| 56 | |
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| 57 | //get fs again since the old one may be closed |
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| 58 | fs = cluster.getFileSystem(); |
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| 59 | FileStatus file = fs.getFileStatus(f); |
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| 60 | long len = file.getLen(); |
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| 61 | for(BlockLocation locations : fs.getFileBlockLocations(file, 0, len)) { |
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| 62 | assertTrue(locations.getHosts().length == toREP); |
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| 63 | } |
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| 64 | TestDFSShell.show("done setrep waiting: " + root); |
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| 65 | } finally { |
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| 66 | try {fs.close();} catch (Exception e) {} |
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| 67 | cluster.shutdown(); |
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| 68 | } |
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| 69 | } |
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| 70 | |
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| 71 | public void testSetrepIncreasing() throws IOException { |
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| 72 | setrep(3, 7, false); |
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| 73 | } |
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| 74 | public void testSetrepIncreasingSimulatedStorage() throws IOException { |
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| 75 | setrep(3, 7, true); |
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| 76 | } |
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| 77 | } |
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