TestMiniMRWithDFSWithDistinctUsers.java
上传用户:quxuerui
上传日期:2018-01-08
资源大小:41811k
文件大小:3k
源码类别:
网格计算
开发平台:
Java
- /**
- * 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.mapred;
- import java.io.*;
- import junit.framework.TestCase;
- import org.apache.hadoop.conf.Configuration;
- import org.apache.hadoop.hdfs.MiniDFSCluster;
- import org.apache.hadoop.fs.FileSystem;
- import org.apache.hadoop.fs.Path;
- import org.apache.hadoop.fs.permission.FsPermission;
- import org.apache.hadoop.security.*;
- /**
- * A JUnit test to test Mini Map-Reduce Cluster with Mini-DFS.
- */
- public class TestMiniMRWithDFSWithDistinctUsers extends TestCase {
- static final long now = System.currentTimeMillis();
- static final UnixUserGroupInformation DFS_UGI = createUGI("dfs", true);
- static final UnixUserGroupInformation PI_UGI = createUGI("pi", false);
- static final UnixUserGroupInformation WC_UGI = createUGI("wc", false);
- static UnixUserGroupInformation createUGI(String name, boolean issuper) {
- String username = name + now;
- String group = issuper? "supergroup": username;
- return UnixUserGroupInformation.createImmutable(
- new String[]{username, group});
- }
- static JobConf createJobConf(MiniMRCluster mr, UnixUserGroupInformation ugi) {
- JobConf jobconf = mr.createJobConf();
- UnixUserGroupInformation.saveToConf(jobconf,
- UnixUserGroupInformation.UGI_PROPERTY_NAME, ugi);
- return jobconf;
- }
- static void mkdir(FileSystem fs, String dir) throws IOException {
- Path p = new Path(dir);
- fs.mkdirs(p);
- fs.setPermission(p, new FsPermission((short)0777));
- }
- public void testDistinctUsers() throws Exception {
- MiniDFSCluster dfs = null;
- MiniMRCluster mr = null;
- try {
- Configuration conf = new Configuration();
- UnixUserGroupInformation.saveToConf(conf,
- UnixUserGroupInformation.UGI_PROPERTY_NAME, DFS_UGI);
- dfs = new MiniDFSCluster(conf, 4, true, null);
- FileSystem fs = dfs.getFileSystem();
- mkdir(fs, "/user");
- mkdir(fs, "/mapred");
- UnixUserGroupInformation MR_UGI = createUGI(
- UnixUserGroupInformation.login().getUserName(), false);
- mr = new MiniMRCluster(0, 0, 4, dfs.getFileSystem().getUri().toString(),
- 1, null, null, MR_UGI);
- JobConf pi = createJobConf(mr, PI_UGI);
- TestMiniMRWithDFS.runPI(mr, pi);
- JobConf wc = createJobConf(mr, WC_UGI);
- TestMiniMRWithDFS.runWordCount(mr, wc);
- } finally {
- if (dfs != null) { dfs.shutdown(); }
- if (mr != null) { mr.shutdown();}
- }
- }
- }