MAPREDUCE-4554. Job Credentials are not transmitted if security is turned off (Benoy Antony via bobby)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1395769 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -555,6 +555,9 @@ Release 0.23.5 - UNRELEASED
 
   BUG FIXES
 
+    MAPREDUCE-4554. Job Credentials are not transmitted if security is turned 
+    off (Benoy Antony via bobby)
+
 Release 0.23.4 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/MRAppMaster.java

@@ -490,7 +490,6 @@ public class MRAppMaster extends CompositeService {
     try {
       this.currentUser = UserGroupInformation.getCurrentUser();
 
-      if (UserGroupInformation.isSecurityEnabled()) {
       // Read the file-system tokens from the localized tokens-file.
       Path jobSubmitDir = 
           FileContext.getLocalFSFileContext().makeQualified(
@@ -502,7 +501,6 @@ public class MRAppMaster extends CompositeService {
       LOG.info("jobSubmitDir=" + jobSubmitDir + " jobTokenFile="
           + jobTokenFile);
       currentUser.addCredentials(fsTokens); // For use by AppMaster itself.
-      }
     } catch (IOException e) {
       throw new YarnException(e);
     }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java

@@ -647,14 +647,10 @@ public abstract class TaskAttemptImpl implements
       MRApps.setupDistributedCache(conf, localResources);
 
       // Setup up task credentials buffer
-      Credentials taskCredentials = new Credentials();
-
-      if (UserGroupInformation.isSecurityEnabled()) {
       LOG.info("Adding #" + credentials.numberOfTokens()
           + " tokens and #" + credentials.numberOfSecretKeys()
           + " secret keys for NM use for launching container");
-        taskCredentials.addAll(credentials);
+      Credentials taskCredentials = new Credentials(credentials);
-      }
 
       // LocalStorageToken is needed irrespective of whether security is enabled
       // or not.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestStagingCleanup.java

@@ -179,6 +179,10 @@ import org.junit.Test;
      public Configuration getConfig() {
        return conf;
      }
+
+     @Override
+     protected void downloadTokensAndSetupUGI(Configuration conf) {
+     }
    }
 
   private final class MRAppTestCleanup extends MRApp {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/main/java/org/apache/hadoop/mapred/YARNRunner.java

@@ -372,12 +372,9 @@ public class YARNRunner implements ClientProtocol {
     }
 
     // Setup security tokens
-    ByteBuffer securityTokens = null;
-    if (UserGroupInformation.isSecurityEnabled()) {
     DataOutputBuffer dob = new DataOutputBuffer();
     ts.writeTokenStorageToStream(dob);
-      securityTokens = ByteBuffer.wrap(dob.getData(), 0, dob.getLength());
+    ByteBuffer securityTokens  = ByteBuffer.wrap(dob.getData(), 0, dob.getLength());
-    }
 
     // Setup the command to run the AM
     List<String> vargs = new ArrayList<String>(8);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/security/CredentialsTestJob.java

@@ -0,0 +1,142 @@
+/**
+ * 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.mapreduce.security;
+
+import java.io.IOException;
+
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.conf.Configured;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.io.IntWritable;
+import org.apache.hadoop.io.NullWritable;
+import org.apache.hadoop.io.Text;
+import org.apache.hadoop.mapreduce.Job;
+import org.apache.hadoop.mapreduce.MRJobConfig;
+import org.apache.hadoop.mapreduce.Mapper;
+import org.apache.hadoop.mapreduce.Reducer;
+import org.apache.hadoop.mapreduce.SleepJob;
+import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
+import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat;
+import org.apache.hadoop.security.Credentials;
+import org.apache.hadoop.util.Tool;
+import org.apache.hadoop.util.ToolRunner;
+
+/**
+ * class for testing transport of keys via Credentials . 
+ * Client passes a list of keys in the Credentials object. 
+ * The mapper and reducer checks whether it can access the keys
+ * from Credentials.
+ */
+public class CredentialsTestJob extends Configured implements Tool {
+
+  private static final int NUM_OF_KEYS = 10;
+
+  private static void checkSecrets(Credentials ts) {
+    if  ( ts == null){
+      throw new RuntimeException("The credentials are not available"); 
+      // fail the test
+    }
+
+    for(int i=0; i<NUM_OF_KEYS; i++) {
+      String secretName = "alias"+i;
+      // get token storage and a key
+      byte[] secretValue =  ts.getSecretKey(new Text(secretName));
+      System.out.println(secretValue);
+
+      if (secretValue == null){
+        throw new RuntimeException("The key "+ secretName + " is not available. "); 
+        // fail the test
+      }
+
+      String secretValueStr = new String (secretValue);
+
+      if  ( !("password"+i).equals(secretValueStr)){
+        throw new RuntimeException("The key "+ secretName +
+            " is not correct. Expected value is "+ ("password"+i) +
+            ". Actual value is " + secretValueStr); // fail the test
+      }        
+    }
+  }
+
+  public static class CredentialsTestMapper 
+  extends Mapper<IntWritable, IntWritable, IntWritable, NullWritable> {
+    Credentials ts;
+
+    protected void setup(Context context) 
+    throws IOException, InterruptedException {
+      ts = context.getCredentials();
+    }
+
+    public void map(IntWritable key, IntWritable value, Context context
+    ) throws IOException, InterruptedException {
+      checkSecrets(ts);
+
+    }
+  }
+
+  public static class CredentialsTestReducer  
+  extends Reducer<IntWritable, NullWritable, NullWritable, NullWritable> {
+    Credentials ts;
+
+    protected void setup(Context context) 
+    throws IOException, InterruptedException {
+      ts = context.getCredentials();
+    }
+
+    public void reduce(IntWritable key, Iterable<NullWritable> values,
+        Context context)
+    throws IOException {
+      checkSecrets(ts);
+    }
+  }
+
+  public static void main(String[] args) throws Exception {
+    int res = ToolRunner.run(new Configuration(), new CredentialsTestJob(), args);
+    System.exit(res);
+  }
+
+  public Job createJob() 
+  throws IOException {
+    Configuration conf = getConf();
+    conf.setInt(MRJobConfig.NUM_MAPS, 1);
+    Job job = Job.getInstance(conf, "test");
+    job.setNumReduceTasks(1);
+    job.setJarByClass(CredentialsTestJob.class);
+    job.setNumReduceTasks(1);
+    job.setMapperClass(CredentialsTestJob.CredentialsTestMapper.class);
+    job.setMapOutputKeyClass(IntWritable.class);
+    job.setMapOutputValueClass(NullWritable.class);
+    job.setReducerClass(CredentialsTestJob.CredentialsTestReducer.class);
+    job.setInputFormatClass(SleepJob.SleepInputFormat.class);
+    job.setPartitionerClass(SleepJob.SleepJobPartitioner.class);
+    job.setOutputFormatClass(NullOutputFormat.class);
+    job.setSpeculativeExecution(false);
+    job.setJobName("test job");
+    FileInputFormat.addInputPath(job, new Path("ignored"));
+    return job;
+  }
+
+  public int run(String[] args) throws Exception {
+
+    Job job = createJob();
+    return job.waitForCompletion(true) ? 0 : 1;
+  }
+
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/security/TestMRCredentials.java

@@ -0,0 +1,137 @@
+package org.apache.hadoop.mapreduce.security;
+
+/** 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.
+ */
+
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.net.URI;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.hdfs.server.namenode.NameNode;
+import org.apache.hadoop.mapred.JobConf;
+import org.apache.hadoop.mapred.MiniMRClientCluster;
+import org.apache.hadoop.mapred.MiniMRClientClusterFactory;
+import org.apache.hadoop.mapreduce.JobContext;
+import org.apache.hadoop.util.ToolRunner;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * Tests whether a protected secret passed from JobClient is
+ * available to the child task
+ */
+
+public class TestMRCredentials {
+
+  static final int NUM_OF_KEYS = 10;
+  private static MiniMRClientCluster mrCluster;
+  private static MiniDFSCluster dfsCluster;
+  private static int numSlaves = 1;
+  private static JobConf jConf;
+
+  @SuppressWarnings("deprecation")
+  @BeforeClass
+  public static void setUp() throws Exception {
+    System.setProperty("hadoop.log.dir", "logs");
+    Configuration conf = new Configuration();
+    dfsCluster = new MiniDFSCluster(conf, numSlaves, true, null);  
+    jConf = new JobConf(conf);
+    FileSystem.setDefaultUri(conf, dfsCluster.getFileSystem().getUri().toString());
+    mrCluster = MiniMRClientClusterFactory.create(TestMRCredentials.class, 1, jConf);
+    createKeysAsJson("keys.json");
+  }
+
+  @AfterClass
+  public static void tearDown() throws Exception {
+    if(mrCluster != null)
+      mrCluster.stop();
+    mrCluster = null;
+    if(dfsCluster != null)
+      dfsCluster.shutdown();
+    dfsCluster = null;
+
+    new File("keys.json").delete();
+
+  }
+
+  public static void createKeysAsJson (String fileName) 
+  throws FileNotFoundException, IOException{
+    StringBuilder jsonString = new StringBuilder();
+    jsonString.append("{");
+    for(int i=0; i<NUM_OF_KEYS; i++) {
+      String keyName = "alias"+i;
+      String password = "password"+i;
+      jsonString.append("\""+ keyName +"\":"+ "\""+password+"\"" );
+      if (i < (NUM_OF_KEYS-1)){
+        jsonString.append(",");
+      }
+
+    }
+    jsonString.append("}");
+
+    FileOutputStream fos= new FileOutputStream (fileName);
+    fos.write(jsonString.toString().getBytes());
+    fos.close();
+  }
+
+
+  /**
+   * run a distributed job and verify that TokenCache is available
+   * @throws IOException
+   */
+  @Test
+  public void test () throws IOException {
+
+    // make sure JT starts
+    Configuration jobConf =  new JobConf(mrCluster.getConfig());
+
+    // provide namenodes names for the job to get the delegation tokens for
+    //String nnUri = dfsCluster.getNameNode().getUri(namenode).toString();
+    NameNode nn = dfsCluster.getNameNode();
+    URI nnUri = NameNode.getUri(nn.getNameNodeAddress());
+    jobConf.set(JobContext.JOB_NAMENODES, nnUri + "," + nnUri.toString());
+
+
+    jobConf.set("mapreduce.job.credentials.json" , "keys.json");
+
+    // using argument to pass the file name
+    String[] args = {
+        "-m", "1", "-r", "1", "-mt", "1", "-rt", "1"
+    };
+
+    int res = -1;
+    try {
+      res = ToolRunner.run(jobConf, new CredentialsTestJob(), args);
+    } catch (Exception e) {
+      System.out.println("Job failed with" + e.getLocalizedMessage());
+      e.printStackTrace(System.out);
+      fail("Job failed");
+    }
+    assertEquals("dist job res is not 0", res, 0);
+
+  }
+}