Hello, I do a lot of work for Apache Accumulo and recently discovered that an Unmodifiable Hadoop Configuration object would not only be very useful for our code but also beneficial to the broader Hadoop community. I found an open but older ticket for this exact enhancement and submitted a patch: https://issues.apache.org/jira/browse/HADOOP-11223
As far as I can tell, the patch is ready. Can someone shepherd this enhancement to at least merge the patch into the code base? It would be even better if someone could utilize this enhancement throughout Hadoop as well but that could be done as follow on work.
