|Atlas and Ranger Default Installation
|During the service selection process of a new install, you see multiple limited functionality warnings if Atlas, Ranger, and their dependent services are not selected for installation.
|Ambari UI uses websocket to communicate with the Ambari
|The Ambari UI now uses websocket to communicate with the Ambari
Server. If you are using Ambari through a proxy like Nginx, Knox, or
Apache HTTPD, ensure that that proxy is configured to proxy
websocket traffic. If this is not done, the Ambari web UI does not
update quickly and performance is sluggish.
|Ambari Server and Log Search UI Changes
|The look and feel of the Ambari Server UI in Ambari 7.1.x.x
and the Log Search UI have changed significantly.
|Ambari Server Setup SSO CLI
|The ambari-server setup-sso command now includes a prompt
to setup SSO for Ambari, Atlas, and Ranger.
|KDC Admin host must use FQDN
|As of Ambari 7.1.x, the KDC admin host value is expected to
be the fully qualified domain name (FQDN) of the host where the KDC
administration server is located. If Kerberos is enabled, then
verify and update the KDC Admin host to use FQDN. This must be done
before the upgrade can proceed.
|After upgrading to Ambari 7.1.x, clicking Regenerate
Keytabs and selecting only to regenerate missing keytabs regenerates
all keytabs. This behavior only happens the first time this
operation is performed, all subsequent use of Regenerate Keytabs
with only missing keytabs selected behaves as usual.
|KDC Admin Credentials Needed during Stack upgrade
|When upgrading from HDP 2.6.5.x to HDP intermediate bits,
additional YARN components are added to the cluster. If your cluster
has Kerberos enabled, the Ambari Server must be configured to store
the KDC admin credentials so that the principals for these
components can be created during the upgrade.
|You can not allow a DELETE operation on an existing Blueprint when a cluster deployment has completed with that Blueprint. In any other case, the DELETE is allowed.
|Version API Change
|The default response to the /api/v1/clusters has changed.
Before Ambari 2.7, each cluster's “version” was reported in the
response of this call by default. In Ambari 7.1.x, this “version”
field is no longer included in the default response, but can be
included in the response if the following query parameters are used:
|Ambari Views Removed
|Ambari 7.1.x does not support Hive, Tez, and Pig