HDFS ports suddenly change after enable kerberos

[#1]

Hello,

For some reason after enable kerberos security, ambari have changed my datanode ports to 1019, anyone know why is this happening?

Because of this for some reason now my namenode is detecting the blocks of a full datanode as underreplicated and is replicated them.

[#2 · Accepted solution]

@Juan Manuel Nieto, The datanode ports are expected to change to 1019 in secure env.

https://ambari.apache.org/1.2.5/installing-hadoop-using-ambari/content/ambari-kerb-2-2-2a.html

[#3]

Thanks @yvora , I had seen that before I just didn't know why isn't documented in https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.0/bk_reference/content/hdfs-ports.html