a process-related question from a lurker/newbie ... FTPFileSystem does not support ftp passive mode. The underlying org.apache.commons.net.ftp.FTPClient implementation supports passive mode + a number of other settings.
https://issues.apache.org/jira/browse/HADOOP-8602 includes a patch to support passive mode. Q: What needs to be done to get this patch included in the next release? Thanks, Michael