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From t...@apache.org
Subject svn commit: r1234070 [1/4] - in /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project: ./ ivy/ src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/ src/docs/src/documentation/content/xdocs/ src/test/mapred/org/apache/hadoop/tools/rumen...
Date Fri, 20 Jan 2012 18:55:21 GMT
Author: tucu
Date: Fri Jan 20 18:55:20 2012
New Revision: 1234070

URL: http://svn.apache.org/viewvc?rev=1234070&view=rev
Log:
Merge -r 1215140:1215141 from trunk to branch. FIXES: MAPREDUCE-778

Added:
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/test/mapred/org/apache/hadoop/tools/rumen/TestRumenAnonymization.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/Anonymizer.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/anonymization/
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/anonymization/DataAnonymizer.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/anonymization/WordList.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/anonymization/WordListAnonymizerUtility.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/AnonymizableDataType.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/ClassName.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/DataType.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/DefaultAnonymizableDataType.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/DefaultDataType.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/FileName.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/JobName.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/JobProperties.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/NodeName.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/QueueName.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/UserName.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/util/
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/util/DefaultJobPropertiesParser.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/util/JobPropertyParser.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/datatypes/util/MapReduceJobPropertiesParser.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/serializers/
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/serializers/BlockingSerializer.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/serializers/DefaultAnonymizingRumenSerializer.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/serializers/DefaultRumenSerializer.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/serializers/ObjectStringSerializer.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/state/
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/state/State.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/state/StateDeserializer.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/state/StatePool.java
Modified:
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy.xml
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy/libraries.properties
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/GridmixJob.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/rumen.xml
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/test/mapred/org/apache/hadoop/tools/rumen/TestRumenFolder.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/test/mapred/org/apache/hadoop/tools/rumen/TestRumenJobTraces.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/Folder.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/HadoopLogsAnalyzer.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/JobBuilder.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/JsonObjectMapperWriter.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/LoggedJob.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/LoggedLocation.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/LoggedNetworkTopology.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/LoggedTask.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/LoggedTaskAttempt.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/ParsedHost.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/ZombieCluster.java
    hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/tools/org/apache/hadoop/tools/rumen/ZombieJob.java

Modified: hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt?rev=1234070&r1=1234069&r2=1234070&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt (original)
+++ hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt Fri Jan 20 18:55:20
2012
@@ -4,7 +4,8 @@ Release 0.23.1 - Unreleased
 
   INCOMPATIBLE CHANGES
 
-  NEW FEATURES                                                                    
+  NEW FEATURES
+    MAPREDUCE-778. Rumen Anonymizer. (Amar Kamat and Chris Douglas via amarrk)
 
     MAPREDUCE-3121. NodeManager should handle disk-failures (Ravi Gummadi via mahadev)
 
@@ -14,6 +15,8 @@ Release 0.23.1 - Unreleased
     MAPREDUCE-3251. Network ACLs can prevent some clients to talk to MR ApplicationMaster.
     (Anupam Seth via mahadev)
 
+    MAPREDUCE-778. Rumen Anonymizer. (Amar Kamat and Chris Douglas via amarrk)
+
   IMPROVEMENTS
     MAPREDUCE-3375. [Gridmix] Memory Emulation system tests.
                     (Vinay Thota via amarrk)

Modified: hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy.xml
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy.xml?rev=1234070&r1=1234069&r2=1234070&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy.xml (original)
+++ hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy.xml Fri Jan 20 18:55:20
2012
@@ -139,6 +139,13 @@
    <dependency org="org.vafer" name="jdeb" rev="${jdeb.version}" conf="package->master"/>
    <dependency org="org.mortbay.jetty" name="jetty-servlet-tester" rev="${jetty.version}"
                conf="test->default"/>
+
+   <!-- dependency for rumen anonymization -->
+   <dependency org="org.codehaus.jackson" name="jackson-core-asl" rev="${jackson.version}"
+               conf="compile->default"/>
+   <dependency org="org.codehaus.jackson" name="jackson-mapper-asl" rev="${jackson.version}"
+               conf="compile->default"/>
+
    <!-- dependency addition for the fault injection -->
    <dependency org="org.aspectj" name="aspectjrt" rev="${aspectj.version}"
                conf="compile->default"/>

Modified: hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy/libraries.properties
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy/libraries.properties?rev=1234070&r1=1234069&r2=1234070&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy/libraries.properties (original)
+++ hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/ivy/libraries.properties Fri
Jan 20 18:55:20 2012
@@ -81,5 +81,6 @@ wagon-http.version=1.0-beta-2
 xmlenc.version=0.52
 xerces.version=1.4.4
 
-yarn.version=0.23.1-SNAPSHOT
-hadoop-mapreduce.version=0.23.1-SNAPSHOT
+jackson.version=1.8.2
+yarn.version=0.24.0-SNAPSHOT
+hadoop-mapreduce.version=0.24.0-SNAPSHOT

Modified: hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/GridmixJob.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/GridmixJob.java?rev=1234070&r1=1234069&r2=1234070&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/GridmixJob.java
(original)
+++ hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/GridmixJob.java
Fri Jan 20 18:55:20 2012
@@ -26,8 +26,6 @@ import java.util.concurrent.Callable;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Delayed;
 import java.util.concurrent.TimeUnit;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 import java.security.PrivilegedExceptionAction;
 
 import org.apache.hadoop.conf.Configuration;
@@ -49,6 +47,7 @@ import org.apache.hadoop.mapreduce.serve
 import org.apache.hadoop.mapreduce.MRJobConfig;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.tools.rumen.JobStory;
+import static org.apache.hadoop.tools.rumen.datatypes.util.MapReduceJobPropertiesParser.extractMaxHeapOpts;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -92,8 +91,6 @@ abstract class GridmixJob implements Cal
   // configuration key to enable/disable task jvm options
   static final String GRIDMIX_TASK_JVM_OPTIONS_ENABLE = 
     "gridmix.task.jvm-options.enable";
-  private static final Pattern maxHeapPattern = 
-    Pattern.compile("-Xmx[0-9]+[kKmMgGtT]?+");
 
   private static void setJobQueue(Job job, String queue) {
     if (queue != null) {
@@ -225,18 +222,6 @@ abstract class GridmixJob implements Cal
       }
     }
   }
-  
-  private static void extractMaxHeapOpts(String javaOptions,  
-      List<String> maxOpts,  List<String> others) {
-    for (String opt : javaOptions.split(" ")) {
-      Matcher matcher = maxHeapPattern.matcher(opt);
-      if (matcher.find()) {
-        maxOpts.add(opt);
-      } else {
-        others.add(opt);
-      }
-    }
-  }
 
   // Scales the desired job-level configuration parameter. This API makes sure 
   // that the ratio of the job level configuration parameter to the cluster 

Modified: hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/rumen.xml
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/rumen.xml?rev=1234070&r1=1234069&r2=1234070&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/rumen.xml
(original)
+++ hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/rumen.xml
Fri Jan 20 18:55:20 2012
@@ -73,6 +73,11 @@
             computed for the total number of successful tasks for every attempt.
             
         </li>
+        <li>Anonymized traces enables sharing of production traces of large 
+            scale Hadoop deployments. Sharing of traces will foster 
+            collaboration within the Hadoop community. It can also be used to 
+            supplement interesting research findings.
+        </li>
       </ul>
     </section>
 
@@ -102,6 +107,11 @@
             Increasing the trace runtime might involve adding some dummy jobs to
             the resulting trace and scaling up the runtime of individual jobs.
        </li>
+       <li><em>Anonymizer</em> : 
+            A utility to anonymize Hadoop job and cluster topology traces by 
+            masking certain sensitive fields but retaining important workload 
+            characteristics.    
+        </li>
                  
       </ul>
       <p></p><p></p><p></p>
@@ -128,10 +138,11 @@
           <code>output-duration</code>, <code>concentration</code>
etc.
     </note>
        
-    <p><em>Rumen</em> provides 2 basic commands</p>
+    <p><em>Rumen</em> provides 3 basic commands</p>
      <ul>
        <li><code>TraceBuilder</code></li>
        <li><code>Folder</code></li>
+       <li><code>Anonymizer</code></li>
      </ul>
        
     <p>Firstly, we need to generate the <em>Gold Trace</em>. Hence the
first 
@@ -139,8 +150,9 @@
        The output of the <code>TraceBuilder</code> is a job-trace file (and an

        optional cluster-topology file). In case we want to scale the output, we 
        can use the <code>Folder</code> utility to fold the current trace to the

-       desired length. The remaining part of this section explains these 
-       utilities in detail.
+       desired length. For anonymizing the trace, use the 
+       <code>Anonymizer</code> utility. The remaining part of this section 
+       explains these utilities in detail.
     </p>
     
     <note>Examples in this section assumes that certain libraries are present 
@@ -426,8 +438,156 @@
         </p>
       </section>
     </section>
+    <p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p>
+    <p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p>
+    <p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p>
+    <p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p>
+    <p></p><p></p><p></p><p></p>
+    
+    </section>
+    
+    <!--
+     Anonymizer command
+    -->
+    <section>
+      <title>Anonymizer</title>
+      
+      <p><code>Command:</code></p>
+      <source>java org.apache.hadoop.tools.rumen.Anonymizer [options] [-trace &lt;jobtrace-input&gt;
&lt;jobtrace-output&gt;] [-topology &lt;topology-input&gt; &lt;topology-output&gt;]</source>
+
+      <p>This command invokes the <em>Anonymizer</em> utility of 
+         <em>Rumen</em>. It anonymizes sensitive information from the 
+         <code>&lt;jobtrace-input&gt;</code> file and outputs the anonymized

+         content into the <code>&lt;jobtrace-output&gt;</code>
+         file. It also anonymizes the cluster layout (topology) from the
+         <code>&lt;topology-input&gt;</code> and outputs it in
+         the <code>&lt;topology-output&gt;</code> file.
+         <code>&lt;job-input&gt;</code> represents the job trace file
obtained 
+         using <code>TraceBuilder</code> or <code>Folder</code>.

+         <code>&lt;topology-input&gt;</code> represents the cluster topology

+         file obtained using <code>TraceBuilder</code>.
+      </p>
+         
+      <p><code>Options :</code></p>
+      <table>
+        <tr>
+          <th>Parameter</th>
+          <th>Description</th>
+          <th>Notes</th>
+        </tr>
+        <tr>
+          <td><code>-trace</code></td>
+          <td>Anonymizes job traces.</td>
+          <td>Anonymizes sensitive fields like user-name, job-name, queue-name
+              host-names, job configuration parameters etc.</td>
+        </tr>
+        <tr>
+          <td><code>-topology</code></td>
+          <td>Anonymizes cluster topology</td>
+          <td>Anonymizes rack-names and host-names.</td>
+        </tr>
+      </table>
+      
+      <section id="anonymizerconf">
+      <title><em>Anonymizer</em> Configuration Parameters</title>
+      <p>The Rumen anonymizer can be configured using the following 
+         configuration parameters:
+      </p>
+      <table>
+        <tr>
+          <th>Parameter</th>
+          <th>Description</th>
+        </tr>
+        <tr>
+          <td>
+            <code>rumen.data-types.classname.preserve</code>
+          </td>
+          <td>A comma separated list of prefixes that the <em>Anonymizer</em>

+              will not anonymize while processing classnames. If 
+              <code>rumen.data-types.classname.preserve</code> is set to 
+              <code>'org.apache,com.hadoop.'</code> then 
+              classnames starting with <code>'org.apache'</code> or 
+              <code>'com.hadoop.'</code> will not be anonymized. 
+          </td>
+        </tr>
+        <tr>
+          <td>
+            <code>rumen.datatypes.jobproperties.parsers</code>
+          </td>
+          <td>A comma separated list of job properties parsers. These parsers 
+              decide how the job configuration parameters 
+              (i.e &lt;key,value&gt; pairs)  should be processed. Default is 
+              <code>MapReduceJobPropertiesParser</code>. The default parser will
+              only parse framework-level MapReduce specific job configuration 
+              properties. Users can add custom parsers by implementing the 
+              <code>JobPropertiesParser</code> interface. Rumen also provides
an
+              all-pass (i.e no filter) parser called 
+              <code>DefaultJobPropertiesParser</code>.
+          </td>
+        </tr>
+        <tr>
+          <td>
+            <code>rumen.anonymization.states.dir</code>
+          </td>
+          <td>Set this to a location (on LocalFileSystem or HDFS) for enabling
+              state persistence and/or reload. This parameter is not set by 
+              default. Reloading and persistence of states depend on the state 
+              directory. Note that the state directory will contain the latest 
+              as well as previous states.
+          </td>
+        </tr>
+        <tr>
+          <td>
+            <code>rumen.anonymization.states.persist</code>
+          </td>
+          <td>Set this to <code>'true'</code> to persist the current state.

+              Default value is <code>'false'</code>. Note that the states will

+              be persisted to the state manager's state directory 
+              specified using the <code>rumen.anonymization.states.dir</code>

+              parameter.
+          </td>
+        </tr>
+        <tr>
+          <td>
+            <code>rumen.anonymization.states.reload</code>
+          </td>
+          <td>Set this to <code>'true'</code> to enable reuse of previously

+              persisted state. The default value is <code>'false'</code>. The

+              previously persisted state will be reloaded from the state 
+              manager's state directory specified using the 
+              <code>rumen.anonymization.states.dir</code> parameter. Note that

+              the <em>Anonymizer</em> will bail out if it fails to find any 
+              previously persisted state in the state directory or if the state
+              directory is not set. If the user wishes to retain/reuse the 
+              states across multiple invocations of the <em>Anonymizer</em>,

+              then the very first invocation of the <em>Anonymizer</em> should
+              have <code>rumen.anonymization.states.reload</code> set to 
+              <code>'false'</code> and 
+              <code>rumen.anonymization.states.persist</code> set to 
+              <code>'true'</code>. Subsequent invocations of the 
+              <em>Anonymizer</em> can then have 
+              <code>rumen.anonymization.states.reload</code> set to 
+              <code>'true'</code>.
+          </td>
+        </tr>
+      </table>
+    </section>
+    
+      <section>
+        <title>Example</title>
+        <source>java org.apache.hadoop.tools.rumen.Anonymizer -trace file:///home/user/job-trace.json
file:///home/user/job-trace-anonymized.json -topology file:///home/user/cluster-topology.json
file:///home/user/cluster-topology-anonymized.json</source>
+        <p></p>
+        <p>This will anonymize the job details from
+           <code>file:///home/user/job-trace.json</code> and output it to
+           <code>file:///home/user/job-trace-anonymized.json</code>. 
+           It will also anonymize the cluster topology layout from 
+           <code>file:///home/user/cluster-topology.json</code> and output it
to
+           <code>file:///home/user/cluster-topology-anonymized.json</code>.
+           Note that the <code>Anonymizer</code> also supports input and output

+           files on HDFS.
+        </p>
+      </section>
     </section>
-    <p></p><p></p><p></p>
   </section>
   
   <!--
@@ -452,8 +612,8 @@
         <li><code>Hadoop Common</code> (<code>hadoop-common-{hadoop-version}.jar</code>)</li>
         <li><code>Apache Commons Logging</code> (<code>commons-logging-1.1.1.jar</code>)</li>
         <li><code>Apache Commons CLI</code> (<code>commons-cli-1.2.jar</code>)</li>
-        <li><code>Jackson Mapper</code> (<code>jackson-mapper-asl-1.4.2.jar</code>)</li>
-        <li><code>Jackson Core</code> (<code>jackson-core-asl-1.4.2.jar</code>)</li>
+        <li><code>Jackson Mapper</code> (<code>jackson-mapper-asl-1.8.2.jar</code>)</li>
+        <li><code>Jackson Core</code> (<code>jackson-core-asl-1.8.2.jar</code>)</li>
       </ul>
       
       <note>One simple way to run Rumen is to use '$HADOOP_PREFIX/bin/hadoop jar' 



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