FLASHC

"You can override that property in mapred-site.xml on your JT, TT, client nodes but make sure that this will be a system-wide modification:

<configuration>
  ...
  <property>
    <name>mapreduce.job.counters.limit</name>
    <value>500</value>
  </property>
  ...
</configuration>

Then restart the mapreduce service on your cluster. " limit - More than 120 counters in hadoop - Stack Overflow http://stackoverflow.com/questions/12140177/more-than-120-counters-in-hadoop