Hola,

Cloudera me da el siguiente error al lanzar el MapReduce de wordcount. 

17/05/15 12:22:11 INFO ipc.Client: Retrying connect to server: quickstart.cloudera/10.0.2.15:8032. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)

Parece que HDFS no está disponible, reviso el estado (en rojo) y dice:

Bad : NameNode summary: quickstart.cloudera (Availability: Active, Health: Bad). This health test reflects the health of the active NameNode.

Un poco más de info:

The health test result for HDFS_DATA_NODES_HEALTHY has become bad: Healthy DataNode: 0. Concerning DataNode: 0. Total DataNode: 1. Percent healthy: 0.00%. Percent healthy or concerning: 0.00%. Critical threshold: 90.00%.

The health test result for HDFS_HA_NAMENODE_HEALTH has become bad: NameNode summary: quickstart.cloudera (Availability: Active, Health: Bad). This health test reflects the health of the active NameNode.

Alguna idea?

Saludos