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.mapred; |
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19 | |
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20 | import java.io.*; |
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21 | |
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22 | import junit.framework.TestCase; |
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23 | |
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24 | import org.apache.hadoop.conf.Configuration; |
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25 | import org.apache.hadoop.hdfs.MiniDFSCluster; |
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26 | import org.apache.hadoop.fs.FileSystem; |
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27 | import org.apache.hadoop.fs.Path; |
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28 | import org.apache.hadoop.fs.permission.FsPermission; |
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29 | import org.apache.hadoop.security.*; |
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30 | |
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31 | /** |
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32 | * A JUnit test to test Mini Map-Reduce Cluster with Mini-DFS. |
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33 | */ |
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34 | public class TestMiniMRWithDFSWithDistinctUsers extends TestCase { |
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35 | static final long now = System.currentTimeMillis(); |
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36 | static final UnixUserGroupInformation DFS_UGI = createUGI("dfs", true); |
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37 | static final UnixUserGroupInformation PI_UGI = createUGI("pi", false); |
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38 | static final UnixUserGroupInformation WC_UGI = createUGI("wc", false); |
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39 | |
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40 | static UnixUserGroupInformation createUGI(String name, boolean issuper) { |
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41 | String username = name + now; |
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42 | String group = issuper? "supergroup": username; |
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43 | return UnixUserGroupInformation.createImmutable( |
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44 | new String[]{username, group}); |
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45 | } |
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46 | |
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47 | static JobConf createJobConf(MiniMRCluster mr, UnixUserGroupInformation ugi) { |
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48 | JobConf jobconf = mr.createJobConf(); |
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49 | UnixUserGroupInformation.saveToConf(jobconf, |
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50 | UnixUserGroupInformation.UGI_PROPERTY_NAME, ugi); |
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51 | return jobconf; |
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52 | } |
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53 | |
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54 | static void mkdir(FileSystem fs, String dir) throws IOException { |
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55 | Path p = new Path(dir); |
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56 | fs.mkdirs(p); |
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57 | fs.setPermission(p, new FsPermission((short)0777)); |
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58 | } |
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59 | |
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60 | public void testDistinctUsers() throws Exception { |
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61 | MiniDFSCluster dfs = null; |
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62 | MiniMRCluster mr = null; |
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63 | try { |
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64 | Configuration conf = new Configuration(); |
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65 | UnixUserGroupInformation.saveToConf(conf, |
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66 | UnixUserGroupInformation.UGI_PROPERTY_NAME, DFS_UGI); |
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67 | dfs = new MiniDFSCluster(conf, 4, true, null); |
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68 | FileSystem fs = dfs.getFileSystem(); |
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69 | mkdir(fs, "/user"); |
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70 | mkdir(fs, "/mapred"); |
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71 | |
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72 | UnixUserGroupInformation MR_UGI = createUGI( |
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73 | UnixUserGroupInformation.login().getUserName(), false); |
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74 | mr = new MiniMRCluster(0, 0, 4, dfs.getFileSystem().getUri().toString(), |
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75 | 1, null, null, MR_UGI); |
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76 | |
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77 | JobConf pi = createJobConf(mr, PI_UGI); |
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78 | TestMiniMRWithDFS.runPI(mr, pi); |
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79 | |
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80 | JobConf wc = createJobConf(mr, WC_UGI); |
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81 | TestMiniMRWithDFS.runWordCount(mr, wc); |
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82 | } finally { |
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83 | if (dfs != null) { dfs.shutdown(); } |
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84 | if (mr != null) { mr.shutdown();} |
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85 | } |
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86 | } |
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87 | } |
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