System Behavior Changes After Enabling Security
After enabling security features for a cluster, the following behaviors change:
- Users must authenticate with the
maprlogin
utility. -
Components that have web UIs, such as the Control System, Hive, and Oozie, require authentication.
WARNINGNote that you must also complete the PAM configuration to set up user authentication for the Control System logins. - Several components that communicate over HTTP use HTTPS instead.
- Encryption is used for network traffic.
- Access to a cluster using URIs that use the CLDB node's name or IP address, instead of the
cluster name, is no longer supported, as in the following examples. The following URIs no
longer work after enabling security:
http://cldb1.cluster.com:7222/f1
http://10.10.20.10:7221/f1
The following URIs work after enabling security:
http:///f1 <access f1 in default cluster>
http://my.cluster.com/f1