I'm aware of no immediate plans to eliminate this property, but HDFS-2856
will change the security design on the protocol between HDFS client and
datanode such that secure datanodes will not require a privileged port, and
thus you won't need this configuration property. HDFS-2856 is still under
Please note that ignore.secure.ports.for.testing is not suitable for
running a secure production cluster. It opens a risk of a rogue map or
reduce task binding to the datanode's RPC port, impersonating a legitimate
datanode, and stealing secrets or sensitive data. (That jira includes a
full description of the attack vector if you're interested.)
I hope this helps. Thanks!
On Tue, May 21, 2013 at 12:24 PM, Raghu Doppalapudi
> I am starting datanode in secure mode on higher default ports by overriding
> the following property.
> Is this property going to be a permanent one, please suggest whether this
> property good to use, I just want to check whether this is temporary or
> permanent property.