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.
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
We have done this before where the properties were documented in the .xml
file, but didn't exist anywhere in the Configuration files or the rest of
the code.
HDFS-7566 (committed)
YARN-2460 (committed)
MAPREDUCE-6057 (pending)
-Ray
On Thu, Apr 9, 2015 at 4:33 AM, Akira AJISAKA
