Should be okay to remove.
The policy was intended for configs that continue to be relevant like
mapred.child.java.opts. In this case, since there is no TaskTracker
anymore, leaving this config purely for compat reasons seems unnecessary.
We could also improve the policies to clarify this.
On Thu,
Hi Folks,
In MAPREDUCE-6307, I'd like to remove unused
"mapreduce.tasktracker.taskmemorymanager.monitoringinterval" property,
however, the compatibility document says "Hadoop-defined properties are
to be deprecated at least for one major release before being removed."
http://hadoop.apache.or