Hola Fernando/alumnos del aula, para ejecutar el wordcount-1.jar realizo los siguientes pasos:

Levantar Servicios:

---------------------

cd /etc/init.d

sudo ./hadoop-hdfs-namenode start

sudo ./hadoop-hdfs-datanode start

sudo ./hadoop-hdfs-journalnode start

sudo ./hadoop-hdfs-secondarynamenode start

sudo ./hadoop-yarn-nodemanager start

sudo ./hadoop-yarn-resourcemanager start

Quitar el modo seguro al Hdfs

-----------------------------

sudo -u hdfs hadoop dfsadmin -safemode leave

Importar archivo Jar al Hdfs

----------------------------

cd Desktop

hadoop fs -put wordcount-1.jar /tmp

Ejecutar Jar:

-------------

hadoop jar wordcount-1.jar wordcount.WordCountDriver /user/cloudera/cervantes/novela /user/cloudera/salida10

Y me sigue saliendo el  mismo error:

The auxService:mapreduce_suffle does not exist.

Investigando en internet sugieren modificar el archivo /etc/haddop/conf/yarn-site.xml, y que agregue lo siguiente:

<configuration>

  <property>

    <name>yarn.nodemanager.aux-services</name>

    <value>mapreduce_shuffle</value>

  </property>

  <property>

    <name>yarn.nodemanager.aux-services.mapreduce_shuffle.class</name>

    <value>org.apache.hadoop.mapred.ShuffleHandler</value>

  </property>

</configuration>

Pero cuando agrego lo indicado en el archivo /etc/haddop/conf/yarn-site.xml, ahora sale el siguiente error:

20/08/07 09:50:57 INFO mapreduce.Job: Task Id : attempt_1596818118337_0001_m_000001_1, Status : FAILED

Error: org.apache.hadoop.hdfs.BlockMissingException: Could not obtain block: BP-333635372-127.0.0.1-1508779710286:blk_1073742863_2041 file=/user/cloudera/cervantes/teatro/Los banos de Argel_cervantes.txt

at org.apache.hadoop.hdfs.DFSInputStream.refetchLocations(DFSInputStream.java:1040)

at org.apache.hadoop.hdfs.DFSInputStream.chooseDataNode(DFSInputStream.java:1023)

at org.apache.hadoop.hdfs.DFSInputStream.chooseDataNode(DFSInputStream.java:1002)

at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:642)

at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:895)

at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:954)

at java.io.DataInputStream.read(DataInputStream.java:149)

at org.apache.hadoop.mapreduce.lib.input.UncompressedSplitLineReader.fillBuffer(UncompressedSplitLineReader.java:62)

at org.apache.hadoop.util.LineReader.readDefaultLine(LineReader.java:216)

at org.apache.hadoop.util.LineReader.readLine(LineReader.java:174)

at org.apache.hadoop.mapreduce.lib.input.UncompressedSplitLineReader.readLine(UncompressedSplitLineReader.java:94)

at org.apache.hadoop.mapreduce.lib.input.LineRecordReader.skipUtfByteOrderMark(LineRecordReader.java:144)

at org.apache.hadoop.mapreduce.lib.input.LineRecordReader.nextKeyValue(LineRecordReader.java:184)

at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:562)

at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)

at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)

at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)

at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:793)

at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)

at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)

at java.security.AccessController.doPrivileged(Native Method)

at javax.security.auth.Subject.doAs(Subject.java:415)

at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1917)

at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)

Alguna otra sugerencia?.